BACKGROUND: In spite of accurate selection of patients eligible for resection, and although advances in surgical techniques and perioperative management have greatly contributed to reducing the rate of perioperative d...BACKGROUND: In spite of accurate selection of patients eligible for resection, and although advances in surgical techniques and perioperative management have greatly contributed to reducing the rate of perioperative deaths, stress must be placed on reducing the postoperative complication rates reported to be still as high as 50%. This study was designed to analyze the causes and foreseeable risk factors linked to postoperative morbidity on the grounds of data derived from a single-center surgical population. METHODS: From September 1989 to March 2005, 287 consecutive patients, affected either with HCC or liver metastasis, had liver resection at our department. Among the HCC series we recorded 98 patients (73.2%) in Child- Pugh class A, 32 (23.8%) in class B and 4 in class C (3%). In 104 colorectal metastases, 71% were due to colon cancer, 25% rectal, 3% sigmoid, and 1% anorectal. In 49 non-colorectal metastases, 22.4% were derived from breast cancer, 63.2% gastrointestinal tumors (excluding colon) and 14.4% other cancers. We performed 80 wedge resections, 77 bisegmentectomies and/or left lobectomies, 74 segmentectomies, 22 major hepatectomies, 20 left hepatectomies, and 14 trisegmentectomies. RESULTS: The in-hospital mortality rate in this series was 4.5%, and the morbidity rate was 47.7%, because of pleural effusion (30%), hepatic abscess (25%), hepatic insufficiency (19%), ascites (10%), hemoperitoneum (10%), or biliary fistula (6%). The variables associated with the technical aspects of the surgical procedure thatwere responsible for the complications were: a Pringle maneuver length more than 20 minutes (P=0.001); the type of liver resection procedure, including major hepatectomy (P=0.02), left hepatectomy (P=0.04), trisegmentectomy (P=0.04), bisegmentectomy and/or left lobectomy (P=0,04); and a blood transfusion of more than 600 ml (P=0.04). CONCLUSION: The evaluation of causes and foreseeable risk factors linked to postoperative morbidity during the planning of surgical treatment should play the same role as other factors weighed in the selection of patients eligible for liver resection.展开更多
Background Temporal lobe epilepsy is one of the most common types of partial epilepsy.Although surgical treatment has led to signifcant improvements in seizure-free rates,nearly one-third of patients still have poor s...Background Temporal lobe epilepsy is one of the most common types of partial epilepsy.Although surgical treatment has led to signifcant improvements in seizure-free rates,nearly one-third of patients still have poor seizure control after surgery.Moreover,the long-term outcome is less favorable compared to short-term outcome,with 48-58%of patients experiencing seizures fve years after surgery.The aim of this study was to investigate the surgical outcomes and the predictive value of prognostic factors associated with poor surgical outcomes in temporal lobe epilepsy patients receiving surgery.Methods We retrospectively reviewed 94 patients undergoing temporal resective surgery in the Epilepsy Center of Guangdong Provincial Hospital of Traditional Chinese Medicine between July 2016 and July 2020.Patient information including age,gender,personal and family history,as well as preoperative and postoperative clinical data(clinical type and duration of disease)was collected.Results The diferences of postoperative clinical efcacy in both seizure free group and non-seizure free group patients were observed.A log-rank test was used for univariate analysis,and a Cox proportional hazard model was used for multivariate analysis.Ninety-four patients were followed up for at least 1 years.At 12 months of followup,71(75.5%)patients achieved Engel class I,5(5.3%)patients were classifed as Engel class II,5(5.3%)patients were classifed as Engel class Ⅲ,and 13(13.8%)patients were classifed as Engel class IV.Univariate analysis and multivariate Cox regression analysis indicated that the postoperative EEG abnormalities were signifcantly correlated with seizure recurrence and were signifcant independent predictive factors,with a hazard ratio of 12.940.Conclusions The relapse rate in our study was similar to commonly reported overall rates in temporal lobe epilepsy patients receiving surgery.Anterior temporal lobectomy is a reliable treatment option for temporal lobe epilepsy patients.Postoperative electroencephalograph abnormalities are independent risk factors for poor surgical prognosis.展开更多
BACKGROUND The number of population-based studies on unclassified inflammatory bowel disease(IBD-U)is very limited.AIM To evaluate the long-term incidence,disease course and surgery rates of IBD-U in a prospective pop...BACKGROUND The number of population-based studies on unclassified inflammatory bowel disease(IBD-U)is very limited.AIM To evaluate the long-term incidence,disease course and surgery rates of IBD-U in a prospective population-based cohort.METHODSThe present study is a continuation of the well-established Veszprem IBD cohort with patient inclusion between1977 and 2018. Both in-hospital and outpatient records were collected. The source of age- and gender-specificdemographic data was derived from the Hungarian Central Statistical Office. Medical therapy, surgery and changein disease phenotype were analyzed.RESULTSData of 119 incident IBD-U patients were analyzed [male/female: 55/64;median age at diagnosis: 34 years(interquartile range: 24-47.5)]. Adjusted mean incidence rate was 0.76 (95%CI: 0.63-0.9)/105 person-years in the totalstudy period. Disease extent at diagnosis was extensive (pancolitis) in 56.3%. Twenty-two of 119 (18.5%) patientswere reclassified to Crohn’s disease during follow up, the probability of developing terminal ileum involvementwas 6.8%, while perianal disease developed in 5% (n = 6). The probability of receiving biological therapy in patientsdiagnosed after the year 2000 (n = 62), was 15.5% (SD: 4.8) at 5 years. The overall resective surgery rate was 16.8%.Segment resection was performed in 5.0% of the patients, and 11.8% underwent subtotal or total colectomy. Thecumulative probability of resective surgery was 7.6% (SD: 2.4) at 1 year, 9.3% (SD: 2.7) at 5 years, 13.5% (SD: 3.3) at10 years, and 18.5% (SD: 3.9) at 20 years.CONCLUSIONThese data extend our knowledge on the overall burden of IBD-U. Colonic involvement was extensive in a highproportion of IBD-U. Disease reclassification to Crohn’s disease was relatively high. High rates of biologicaltherapy and surgery rates support a relatively severe disease course of IBD-U.展开更多
BACKGROUND Laparoscopic liver resection(LLR)can be challenging due to the difficulty of establishing a retrohepatic tunnel under laparoscopy.Dissecting the third hepatic hilum before parenchymal transection often lead...BACKGROUND Laparoscopic liver resection(LLR)can be challenging due to the difficulty of establishing a retrohepatic tunnel under laparoscopy.Dissecting the third hepatic hilum before parenchymal transection often leads to significant liver mobilization,tumor compression,and bleeding from the short hepatic veins(SHVs).This study introduces a novel technique utilizing the ventral avascular area of the inferior vena cava(IVC),allowing SHVs to be addressed after parenchymal transection,thereby reducing surgical complexity and improving outcomes in in situ LLR.AIM To introduce and evaluate a novel LLR technique using the ventral avascular area of the IVC and compare its short-term outcomes with conventional methods.METHODS The clinical cohort data of patients with pathologically confirmed hepatocellular carcinoma or intrahepatic cholangiocarcinoma who underwent conventional LLR and novel LLR between July 2021 and July 2023 at the First Affiliated Hospital of Chongqing Medical University were retrospectively analyzed.In novel LLR,we initially separated the caudate lobe from the IVC using dissecting forceps along the ventral avascular area of the IVC.Then,we transected the parenchyma of the left and right caudate lobes from the caudal side to the cephalic side using the avascular area as a marker.Subsequently,we addressed the SHVs and finally dissected the root of the right hepatic vein or left hepatic vein.The short-term postoperative outcomes and oncological results of the two approaches were evaluated and compared.RESULTS A total of 256 patients were included,with 150(58.59%)undergoing conventional LLR and 106(41.41%)undergoing novel LLR.The novel technique resulted in significantly larger tumor resections(6.47±2.96 cm vs 4.01±2.33 cm,P<0.001),shorter operative times(199.57±60.37 minutes vs 262.33±83.90 minutes,P<0.001),less intraoperative blood loss(206.92±37.09 mL vs 363.34±131.27 mL,P<0.001),and greater resection volume(345.11±31.40 mL vs 264.38±31.98 mL,P<0.001)compared to conventional LLR.CONCLUSION This novel technique enhances liver resection outcomes by reducing intraoperative complications such as bleeding and tumor compression.It facilitates a safer,in situ removal of complex liver tumors,even in challenging anatomical locations.Compared to conventional methods,this technique offers significant advantages,including reduced operative time,blood loss,and improved overall surgical efficiency.展开更多
BACKGROUND There are few clinicopathologic characteristics and clinical results for oesophageal gastrointestinal stromal tumours(GISTs).Thus,the objective of this study was to identify the clinicopathologic characteri...BACKGROUND There are few clinicopathologic characteristics and clinical results for oesophageal gastrointestinal stromal tumours(GISTs).Thus,the objective of this study was to identify the clinicopathologic characteristics and clinical results of oesophageal GISTs.AIM To investigate endoscopic treatment effective of oesophageal GISTs.METHODS It was retrospective research that collected 32 patients with oesophageal GISTs treated by endoscopic resection(ER)between January 2012 and January 2023 in two Hospital.Clinicopathologic,endoscopic records,and follow-up data were collected and analysed.RESULTS Thirty-one patients underwent en bloc resection and 24(75.0%)lesions underwent R0 resection.The size of GISTs was 2.12±1.88 cm.The overall complication rate was 25.0%,including hydrothorax and post-endoscopic submucosal dissection electrocoagulation syndrome.The mean mitotic index was 3.34±5.04(median,1.50;range,1.00-4.00).Eighteen(56.3%),6(18.8%),2(6.3%),and 6(18.8%)patients were identified as very low,low,intermediate,and high risk,respectively.Three patients developed recurrence after a median follow-up of 64.69±33.13 months.The 5-year overall survival rate was 100%,and the disease-free survival rate was 90.6%.CONCLUSION ER is safe and effective for patients with low-risk oesophageal GISTs.Early detection of oesophageal GISTs is essential to achieve a favourable prognosis.展开更多
Extracorporeal liver surgery(ELS), also known as liver autotransplantation, is a hybrid(cross-fertilized) surgery incorporating the technical knowledge from extreme liver and transplant liver surgeries, and recently b...Extracorporeal liver surgery(ELS), also known as liver autotransplantation, is a hybrid(cross-fertilized) surgery incorporating the technical knowledge from extreme liver and transplant liver surgeries, and recently became more embraced and popularized among leading centers. ELS could be summarized into three major categories, namely, ex-situ liver resection and autotransplantation(ELRA), ante-situm liver resection and autotransplantation(ALRA) and auxiliary partial liver autotransplantation(APLA). The successful development of ELS during the past 37 years is definitely inseparable from continuous effort s done by Chinese surgeons and researchers. Especially, the precision liver surgery paradigm has allowed to transform ELS into a modularized, more simplified, and standardized surgery, to upgrade surgical skills, to improve peri-operative outcome and long-term survival, to increase the capability of surgeons to select more complex diseases and to expand the level of medical service to the population. This review highlights the Chinese contributions to the field of ELS, focusing thereby on features of different surgical types, technical innovations, disease selection and surgical indication, patient prognosis and future perspectives.展开更多
BACKGROUND Gastric cancer(GC)is a prevalent tumor in the digestive system,with around one million new cases reported annually,ranking it as the third most common malignancy.Reducing pain is a key research focus.This s...BACKGROUND Gastric cancer(GC)is a prevalent tumor in the digestive system,with around one million new cases reported annually,ranking it as the third most common malignancy.Reducing pain is a key research focus.This study evaluates the effect of nalbuphine on the analgesic effect and the expression of pain factors in patients after radical resection.AIM To provide a reference for postoperative analgesia methods.METHODS One hundred eight patients with GC,admitted between January 2022 and June 2024,underwent radical gastrectomy.They received a controlled analgesia pump and a transverse abdominis muscle plane block,divided into two groups of 54 patients in each group.The control group received sufentanil,while the observation group received nalbuphine as an analgesic.Postoperative analgesic effects,pain factor expression,and adverse effects were compared.RESULTS The resting pain and activity pain scores in the observation group at 6,12,24 and 48 hours were significantly lower than those in the control group.Additionally,the number of presses and consumption of the observation group at 48 hours were lower than those of the control group;and the response rate of the observation group was higher than that of the control group(P<0.05).The prostaglandin E2,substance P,and serotonin levels 24 hours after the observation group were lower than those in the control group,and the incidence of adverse reactions was 5.56%lower than 22.22%in the control group(P<0.05).CONCLUSION The findings suggest that nalbuphine enhances postoperative multimodal analgesia in patients with radical GC,effectively improving postoperative analgesic effect,relieving postoperative resting and active pain,and reducing postoperative pain factor expression,demonstrating its potential for clinical application.展开更多
BACKGROUND The discrepancy between endoscopic biopsy pathology and the overall pathology of gastric low-grade intraepithelial neoplasia(LGIN)presents challenges in developing diagnostic and treatment protocols.AIM To ...BACKGROUND The discrepancy between endoscopic biopsy pathology and the overall pathology of gastric low-grade intraepithelial neoplasia(LGIN)presents challenges in developing diagnostic and treatment protocols.AIM To develop a risk prediction model for the pathological upgrading of gastric LGIN to aid clinical diagnosis and treatment.METHODS We retrospectively analyzed data from patients newly diagnosed with gastric LGIN who underwent complete endoscopic resection within 6 months at the First Medical Center of Chinese People’s Liberation Army General Hospital between January 2008 and December 2023.A risk prediction model for the pathological progression of gastric LGIN was constructed and evaluated for accuracy and clinical applicability.RESULTS A total of 171 patients were included in this study:93 patients with high-grade intraepithelial neoplasia or early gastric cancer and 78 with LGIN.The logistic stepwise regression model demonstrated a sensitivity and specificity of 0.868 and 0.800,respectively,while the least absolute shrinkage and selection operator(LASSO)regression model showed sensitivity and specificity values of 0.842 and 0.840,respectively.The area under the curve(AUC)for the logistic model was 0.896,slightly lower than the AUC of 0.904 for the LASSO model.Internal validation with 30%of the data yielded AUC scores of 0.908 for the logistic model and 0.905 for the LASSO model.The LASSO model provided greater utility in clinical decision-making.CONCLUSION A risk prediction model for the pathological upgrading of gastric LGIN based on white-light and magnifying endoscopic features can accurately and effectively guide clinical diagnosis and treatment.展开更多
BACKGROUND Recently,several endoscopic techniques have been used to improve the R0 resection rate of rectal neuroendocrine neoplasms(R-NENs).However,none of these methods can achieve 100%complete resection(CR),particu...BACKGROUND Recently,several endoscopic techniques have been used to improve the R0 resection rate of rectal neuroendocrine neoplasms(R-NENs).However,none of these methods can achieve 100%complete resection(CR),particularly in the vertical direction.Endoscopic full-thickness resection(EFTR)has proven to be an effective method for the treatment of submucosal tumors but is seldom utilized in the eradication of R-NENs.AIM To review cases of R-NENs removed using EFTR and to evaluate the safety and efficacy of this technique.METHODS This retrospective cohort study enrolled 160 patients with pathologically confirmed R-NENs,including 132 who underwent endoscopic submucosal dissection(ESD)and 28 who underwent EFTR.Lesions were categorized as<1 cm,1-2 cm,and>2 cm in size.CR rate,en bloc resection rate,operation time,and complications were evaluated.Subgroup analyses and follow-up were also performed.RESULTS EFTR achieved 100%CR rates for lesions<1 cm and 1-2 cm,compared with 67.0%and 50.0%,respectively,in the ESD group.En bloc resection and successful removal of the R-NENs were achieved in all patients.Meanwhile,EFTR showed performance comparable to ESD in terms of operation time,hospitalization cost,and postoperative adverse events,except for a one-day longer hospital stay.We also analyzed the invasion depth of R-NENs based on full-thickness specimens.The data showed that 80%of lesions(<1 cm)and 85.7%of lesions(1-2 cm)had invaded the SM3 level or deeper at the time of resection.For ESD specimens,46.6%(<1 cm)and 89.3%(1-2 cm)of lesions had infiltrated more than 2000μm beneath the muscularis mucosae.CONCLUSION EFTR has shown superior performance in the resection of small R-NENs compared with that of ESD.展开更多
BACKGROUND Complications associated with stomas—including parastomal hernia(PSH),pro-lapse,mucocutaneous separation,and stoma retraction—provide considerable postoperative challenges for colostomy patients.Selecting...BACKGROUND Complications associated with stomas—including parastomal hernia(PSH),pro-lapse,mucocutaneous separation,and stoma retraction—provide considerable postoperative challenges for colostomy patients.Selecting between extraperi-toneal colostomy(EPC)and transperitoneal colostomy(TPC)pathways is there-fore essential for mitigating these complications.AIM To analyze the existing data regarding the efficacy of EPC compared to TPC in reducing stoma-related complications post-colostomy.METHODS PubMed,Google Scholar,EMBASE,MEDLINE,and the Cochrane Library were adopted to uncover pertinent papers in which EPC and TPC approaches were compared.We then conducted a meta-analysis using RevMan 5.4.1.RESULTS Both laparoscopic(Lap)and open approaches showed a reduced incidence of PSH in EPC relative to TPC(P<0.00001 and P=0.02 respectively).In addition,Lap EPC depicted a lesser incidence of prolapse,mucocutaneous separation,and stoma retraction(P=0.007,P=0.03,and P=0.01,respectively)compared to Lap TPC.However,EPC and TPC did not differ with respect to operation time,blood loss,edema,ischemia,necrosis,or infection after the LAP approach.CONCLUSION The extraperitoneal approach may provide benefits in minimizing some stoma-related problems such as PSH,pro-lapse,mucocutaneous separation,and stoma retraction after colostomy surgery.展开更多
In this article we comment on the paper by Xu et al describing retrospective data on endoscopic treatment outcome of esophageal gastrointestinal stromal tumors(GISTs).Esophageal GIST is a rare type of mesenchymal tumo...In this article we comment on the paper by Xu et al describing retrospective data on endoscopic treatment outcome of esophageal gastrointestinal stromal tumors(GISTs).Esophageal GIST is a rare type of mesenchymal tumor.GISTs originate from the interstitial cells of Cajal,which are pacemaker cells involved in gut motility.GISTs are most commonly found in the stomach and small intestine,but esophageal involvement is rare.Esophageal GISTs account for<1%of all GISTs.Endoscopic resection remains the mainstay for small,localized tumors with excellent outcomes.However,larger tumors may require multidisciplinary strategies to provide the best oncological outcomes.Here,we discuss the usefulness of endoscopic ultrasound(EUS)of subepithelial tumors of the upper gastrointestinal tract.EUS is a crucial tool in the diagnosis,staging,and management of subepithelial masses.Given the subepithelial nature of these tumors,standard endoscopy is not adequate,making EUS essential for a comprehensive assessment.EUS provides accurate tumor size assessment and enables fine needle aspirations guided biopsy,for treatment planning.展开更多
BACKGROUND The root of mesentery dissection is one of the critical maneuvers,especially in borderline resectable pancreatic head cancer.Intra-abdominal chyle leak(CL)including chylous ascites may ensue in up to 10%of ...BACKGROUND The root of mesentery dissection is one of the critical maneuvers,especially in borderline resectable pancreatic head cancer.Intra-abdominal chyle leak(CL)including chylous ascites may ensue in up to 10%of patients after pancreatic resections.Globally recognized superior mesenteric artery(SMA)first approaches are invariably performed.The mesenteric dissection through the inferior infracolic approach has been discussed in this study emphasizing its post-operative impact on CL which is the cornerstone of this study.AIM To assess incidence,risk factors,clinical impact of CL following root of mesentery dissection,and the different treatment modalities.METHODS This is a retrospective study incorporating the patients who underwent dissection of the root of mesentery with inferior infracolic SMA first approach pancreat-oduodenectomy for the ventral body and uncinate mass of pancreas in the Department of Gastrointestinal and General Surgery of Kathmandu Medical College and Teaching Hospital from January 1,2021 to February 28,2024.Intraop-erative findings and postoperative outcomes were analyzed.RESULTS In three years,ten patients underwent root of mesentery dissection with inferior infracolic SMA first approach pancreatoduodenectomy.The mean age was 67.6 years with a male-to-female ratio of 4:5.CL was seen in four patients.With virtue of CL,Clavien-Dindo grade Ⅱ or higher morbidity was observed in four patients.Two patients had a hospital stay of more than 20 days with the former having a delayed gastric emptying and the latter with long-term total parenteral nutrition requirement.The mean operative time was 330 minutes.Curative resection was achieved in 100%of the patients.The mean duration of the intensive care unit and hospital stay were 2.55±1.45 days and 15.7±5.32 days,respectively.CONCLUSION Root of mesentery dissection with lymphadenectomy and vascular resection correlated with occurrence of CL.After complete curative resection,these were managed with total parenteral nutrition without adversely impacting outcome.展开更多
Transplantation of the left lateral section(LLS)of the liver is now an established practice for treating advanced diffuse and unresectable focal liver diseases in children,with variants of the LLS primarily used in in...Transplantation of the left lateral section(LLS)of the liver is now an established practice for treating advanced diffuse and unresectable focal liver diseases in children,with variants of the LLS primarily used in infants.However,the surgical challenge of matching the size of an adult donor's graft to the volume of a child's abdomen remains significant.This review explores historical developments,various approaches to measuring the required functional liver mass,and techniques to prevent complications associated with large-for-size grafts in infants.展开更多
Rectal neuroendocrine tumor(rNET)is an indolent malignancy often detected during colonoscopy screening.The incidence of rNET has increased approximately 10-fold over the past 30 years.Most rNETs detected during screen...Rectal neuroendocrine tumor(rNET)is an indolent malignancy often detected during colonoscopy screening.The incidence of rNET has increased approximately 10-fold over the past 30 years.Most rNETs detected during screening endoscopy are small,measuring<10 mm.Current guidelines recommend endoscopic resection for small,well-differentiated rNET using modified endoscopic submucosal resection(mEMR)or endoscopic submucosal dissection.However,the optimal endoscopic treatment method remains uncertain.This paper summarizes the evidence on mEMR with submucosal stretching,mEMR without submucosal stretching,endoscopic submucosal dissection and endoscopic full-thickness resection.Given that rNETs often exhibit submucosal invasion,achieving adequate resection depth is crucial to ensure histological complete resection.mEMR with submucosal stretching appears favorable due to its high rate of histological complete resection,safety and convenience.Risk factors associated with lymph node and distant metastases are also discussed.A treatment algorithm is proposed to facilitate clinical decision-making.展开更多
Colorectal polyps remain a significant health concern because they can develop into cancer.Therefore,accurate assessment and diagnosis of polyps,along with appropriate treatment decisions,are crucial in preventing com...Colorectal polyps remain a significant health concern because they can develop into cancer.Therefore,accurate assessment and diagnosis of polyps,along with appropriate treatment decisions,are crucial in preventing complications or malignant transformation.Some polyps are classified as complex polyps,which means they fail to elevate due to a scar from a previously removed polyp or can be determined by a scoring system like the size/morphology/site/access score,which considers factors like site,morphology,size,and access.Management of complex colorectal polyps involves various options,including endoscopic and surgical approaches.Endoscopic mucosal resection(EMR)may be challenging in scarred polyps,as inadequate lifting can result in incomplete resection or recurrence.As a more advanced alternative,endoscopic submucosal dissection(ESD)is suitable for larger lesions,enabling en-bloc resection even in complex cases with EMR.However,ESD requires expertise and is more time-consuming than EMR,often necessitating hospitalization due to its complexity.Endoscopic full-thickness resection could be a viable alternative for managing scarred polyps.Endoscopic powered resection,either alone or in combination with other modalities,can also be used to achieve less extensive resection.Managing complications during the procedure or post-procedurally is equally important,as bleeding or perforations can be fatal.Careful patient selection based on individual profiles and risk factors,along with the identification of any signs of malignancy,is crucial before treatment to avoid negative post-treatment outcomes.展开更多
BACKGROUND Underwater endoscopic mucosal resection(UEMR)has been shown to be a good treatment option for the management of nonpedunculated polyps≥10 mm since its introduction.However,there is a paucity of randomized ...BACKGROUND Underwater endoscopic mucosal resection(UEMR)has been shown to be a good treatment option for the management of nonpedunculated polyps≥10 mm since its introduction.However,there is a paucity of randomized controlled trials(RCTs)in Asia.AIM To compare the efficacy and safety of UEMR with those of conventional EMR(CEMR)in treating nonpedunculated colorectal lesions.METHODS We carried out this RCT at a tertiary hospital from October 2022 to July 2024.Patients with nonpedunculated colorectal neoplasms ranging from 10 mm to 30 mm in size were randomly assigned to either the UEMR or CEMR group.The primary outcome was the curative resection(R0)rate.The secondary outcomes included en bloc resection,procedure time,adverse events,and the number of clips used for defect closure.RESULTS A total of 260 patients with 260 lesions(130 in each UEMR and CEMR group)were recruited.The median age was 58(27-85)years,the male/female ratio was 1.74,and the median lesion size was 20(10-30 mm)mm.Compared with CEMR,UEMR was associated with a significantly greater curative resection(R0)rate(98.4%vs 90.3%;P=0.007),greater en bloc resection rate(100%vs 94.6%;P=0.014),shorter procedure time(65 vs 185 seconds;P<0.001),lower rate of bleeding complications(1.5%vs 10%;P=0.003),and fewer clips used(2 vs 3;P<0.001).No perforations were observed in either group.CONCLUSION Compared with CEMR,UEMR has a higher R0 rate,greater en bloc resection rate,shorter procedure time,fewer bleeding complications,and clips used in the management of nonpedunculated colorectal neoplasms.展开更多
Liver transplantation represents a complex surgical procedure and serves as a curative treatment for patients presenting an acute or chronic end-stage liver disease, or carefully selected liver malignancy. A significa...Liver transplantation represents a complex surgical procedure and serves as a curative treatment for patients presenting an acute or chronic end-stage liver disease, or carefully selected liver malignancy. A significant gap still exists between the number of available donor organs and potential recipients. The use of an otherwise-wasted resected liver lobe from patients with benign liver tumors is a new, albeit small, option to alleviate the allograft shortage. This review provides evidence that resected liver lobes may be used successfully in liver transplantation.展开更多
The term subepithelial lesions encompasses a wide array of pathology of which numerous benign and malignant pathologies are grouped.A subset of these lesions are termed gastric mesenchymal tumours of which some have i...The term subepithelial lesions encompasses a wide array of pathology of which numerous benign and malignant pathologies are grouped.A subset of these lesions are termed gastric mesenchymal tumours of which some have innate malignant potential.Currently there is various guidance on the recommended approach to the investigation and management of these lesions and there exists multiple methods of resection.Lin et al have developed and proposed a new method of resection of these gastric mesenchymal tumours within the field of endoscopy,a procedure they have termed endoscopic calabash ligation and resection.This editorial aims to outlay the current landscape for gastric mesenchymal tumours with regards to the various guidelines and resection techniques while comparing Lin et al’s new technique to those that are already established in the field of endoscopy.Advancements in endoscopy that maintain or improve patient outcomes compared to the gold standard approach are exciting developments.Lin et al’s study suggests that their technique is comparable in regard to patient outcomes while simultaneously being more efficient in its use of hospital resources including procedural time.Whilst the data and analysis proposed in the study is promising,there are areas that need to be addressed before advocating the procedure for widespread use.However,with further studies and analysis this may be foreseeable in the future.展开更多
In this paper,we comment on the article by Gu et al published in 2024,invest-igating whether there were differences in the clinical/perioperative outcomes of endoscopic and laparoscopic resections of gastric stromal t...In this paper,we comment on the article by Gu et al published in 2024,invest-igating whether there were differences in the clinical/perioperative outcomes of endoscopic and laparoscopic resections of gastric stromal tumors.Compared with most carcinomas,gastrointestinal stromal tumors are quite common worldwide and have a better prognosis.However,they respond to specific chemotherapies and do not routinely require standard lymphadenectomy.The gastric origin is known to be the most represented.Survival after proven radical surgery is ex-cellent,with recurrences being extremely infrequent.Currently,induction/pe-rioperative chemotherapy for high-risk tumors larger than 5 cm can downstage neoplasia and maintain good survival.Therefore,the standard of care for non-metastatic,resectable tumors is surgical excision(avoiding formal lymphaden-ectomy)with or without chemotherapy.In the case of small-(2 cm)to medium-(5 cm)sized tumors,minimally invasive surgical approaches(laparoscopic or ro-botic)have been advocated,and more recently,a purely endoscopic technique has also been proposed.All these interventions are feasible and effective,although no definitive results have been published to prove the superiority of one over another;however,further investigation of its associated oncologic outcomes is still needed.Unfortunately,rigorous,prospective,randomized controlled trials are challenging to conduct,develop,and receive ethical approval for,whereas the final decision of the surgical route is often related to the availability of instru-mentation and local expertise.展开更多
Combined hepatocellular cholangiocarcinoma(cHCC-CCA)is a rare and ag-gressive primary liver malignancy characterized by features of both HCC and CCA.Preoperative diagnosis remains challenging because of overlapping i-...Combined hepatocellular cholangiocarcinoma(cHCC-CCA)is a rare and ag-gressive primary liver malignancy characterized by features of both HCC and CCA.Preoperative diagnosis remains challenging because of overlapping i-maging and histopathological features,which often lead to misclassification.Although liver resection is the primary curative therapy,the efficacy of liver transplantation(LT)remains controversial.Historically,LT has been considered contraindicated owing to the poor prognosis,high recurrence rate of cHCC-CCA,and the potential for organ wastage.Recent studies have suggested that LT may benefit carefully selected patients,particularly those with early-stage tumors or cirrhosis.However,there is no consensus on the criteria for LT in patients with cHCC-CCA.Lymphadenectomy and vascular resection strategies were discussed along with locoregional and systemic therapies.This review synthesized the current evidence on surgical strategies for cHCC-CCA,focusing on evolving LT criteria and outcomes.展开更多
文摘BACKGROUND: In spite of accurate selection of patients eligible for resection, and although advances in surgical techniques and perioperative management have greatly contributed to reducing the rate of perioperative deaths, stress must be placed on reducing the postoperative complication rates reported to be still as high as 50%. This study was designed to analyze the causes and foreseeable risk factors linked to postoperative morbidity on the grounds of data derived from a single-center surgical population. METHODS: From September 1989 to March 2005, 287 consecutive patients, affected either with HCC or liver metastasis, had liver resection at our department. Among the HCC series we recorded 98 patients (73.2%) in Child- Pugh class A, 32 (23.8%) in class B and 4 in class C (3%). In 104 colorectal metastases, 71% were due to colon cancer, 25% rectal, 3% sigmoid, and 1% anorectal. In 49 non-colorectal metastases, 22.4% were derived from breast cancer, 63.2% gastrointestinal tumors (excluding colon) and 14.4% other cancers. We performed 80 wedge resections, 77 bisegmentectomies and/or left lobectomies, 74 segmentectomies, 22 major hepatectomies, 20 left hepatectomies, and 14 trisegmentectomies. RESULTS: The in-hospital mortality rate in this series was 4.5%, and the morbidity rate was 47.7%, because of pleural effusion (30%), hepatic abscess (25%), hepatic insufficiency (19%), ascites (10%), hemoperitoneum (10%), or biliary fistula (6%). The variables associated with the technical aspects of the surgical procedure thatwere responsible for the complications were: a Pringle maneuver length more than 20 minutes (P=0.001); the type of liver resection procedure, including major hepatectomy (P=0.02), left hepatectomy (P=0.04), trisegmentectomy (P=0.04), bisegmentectomy and/or left lobectomy (P=0,04); and a blood transfusion of more than 600 ml (P=0.04). CONCLUSION: The evaluation of causes and foreseeable risk factors linked to postoperative morbidity during the planning of surgical treatment should play the same role as other factors weighed in the selection of patients eligible for liver resection.
文摘Background Temporal lobe epilepsy is one of the most common types of partial epilepsy.Although surgical treatment has led to signifcant improvements in seizure-free rates,nearly one-third of patients still have poor seizure control after surgery.Moreover,the long-term outcome is less favorable compared to short-term outcome,with 48-58%of patients experiencing seizures fve years after surgery.The aim of this study was to investigate the surgical outcomes and the predictive value of prognostic factors associated with poor surgical outcomes in temporal lobe epilepsy patients receiving surgery.Methods We retrospectively reviewed 94 patients undergoing temporal resective surgery in the Epilepsy Center of Guangdong Provincial Hospital of Traditional Chinese Medicine between July 2016 and July 2020.Patient information including age,gender,personal and family history,as well as preoperative and postoperative clinical data(clinical type and duration of disease)was collected.Results The diferences of postoperative clinical efcacy in both seizure free group and non-seizure free group patients were observed.A log-rank test was used for univariate analysis,and a Cox proportional hazard model was used for multivariate analysis.Ninety-four patients were followed up for at least 1 years.At 12 months of followup,71(75.5%)patients achieved Engel class I,5(5.3%)patients were classifed as Engel class II,5(5.3%)patients were classifed as Engel class Ⅲ,and 13(13.8%)patients were classifed as Engel class IV.Univariate analysis and multivariate Cox regression analysis indicated that the postoperative EEG abnormalities were signifcantly correlated with seizure recurrence and were signifcant independent predictive factors,with a hazard ratio of 12.940.Conclusions The relapse rate in our study was similar to commonly reported overall rates in temporal lobe epilepsy patients receiving surgery.Anterior temporal lobectomy is a reliable treatment option for temporal lobe epilepsy patients.Postoperative electroencephalograph abnormalities are independent risk factors for poor surgical prognosis.
文摘BACKGROUND The number of population-based studies on unclassified inflammatory bowel disease(IBD-U)is very limited.AIM To evaluate the long-term incidence,disease course and surgery rates of IBD-U in a prospective population-based cohort.METHODSThe present study is a continuation of the well-established Veszprem IBD cohort with patient inclusion between1977 and 2018. Both in-hospital and outpatient records were collected. The source of age- and gender-specificdemographic data was derived from the Hungarian Central Statistical Office. Medical therapy, surgery and changein disease phenotype were analyzed.RESULTSData of 119 incident IBD-U patients were analyzed [male/female: 55/64;median age at diagnosis: 34 years(interquartile range: 24-47.5)]. Adjusted mean incidence rate was 0.76 (95%CI: 0.63-0.9)/105 person-years in the totalstudy period. Disease extent at diagnosis was extensive (pancolitis) in 56.3%. Twenty-two of 119 (18.5%) patientswere reclassified to Crohn’s disease during follow up, the probability of developing terminal ileum involvementwas 6.8%, while perianal disease developed in 5% (n = 6). The probability of receiving biological therapy in patientsdiagnosed after the year 2000 (n = 62), was 15.5% (SD: 4.8) at 5 years. The overall resective surgery rate was 16.8%.Segment resection was performed in 5.0% of the patients, and 11.8% underwent subtotal or total colectomy. Thecumulative probability of resective surgery was 7.6% (SD: 2.4) at 1 year, 9.3% (SD: 2.7) at 5 years, 13.5% (SD: 3.3) at10 years, and 18.5% (SD: 3.9) at 20 years.CONCLUSIONThese data extend our knowledge on the overall burden of IBD-U. Colonic involvement was extensive in a highproportion of IBD-U. Disease reclassification to Crohn’s disease was relatively high. High rates of biologicaltherapy and surgery rates support a relatively severe disease course of IBD-U.
基金Supported by the General Project of the Natural Science Foundation of Chongqing,No.cstc2021jcyj-msxmX0604.
文摘BACKGROUND Laparoscopic liver resection(LLR)can be challenging due to the difficulty of establishing a retrohepatic tunnel under laparoscopy.Dissecting the third hepatic hilum before parenchymal transection often leads to significant liver mobilization,tumor compression,and bleeding from the short hepatic veins(SHVs).This study introduces a novel technique utilizing the ventral avascular area of the inferior vena cava(IVC),allowing SHVs to be addressed after parenchymal transection,thereby reducing surgical complexity and improving outcomes in in situ LLR.AIM To introduce and evaluate a novel LLR technique using the ventral avascular area of the IVC and compare its short-term outcomes with conventional methods.METHODS The clinical cohort data of patients with pathologically confirmed hepatocellular carcinoma or intrahepatic cholangiocarcinoma who underwent conventional LLR and novel LLR between July 2021 and July 2023 at the First Affiliated Hospital of Chongqing Medical University were retrospectively analyzed.In novel LLR,we initially separated the caudate lobe from the IVC using dissecting forceps along the ventral avascular area of the IVC.Then,we transected the parenchyma of the left and right caudate lobes from the caudal side to the cephalic side using the avascular area as a marker.Subsequently,we addressed the SHVs and finally dissected the root of the right hepatic vein or left hepatic vein.The short-term postoperative outcomes and oncological results of the two approaches were evaluated and compared.RESULTS A total of 256 patients were included,with 150(58.59%)undergoing conventional LLR and 106(41.41%)undergoing novel LLR.The novel technique resulted in significantly larger tumor resections(6.47±2.96 cm vs 4.01±2.33 cm,P<0.001),shorter operative times(199.57±60.37 minutes vs 262.33±83.90 minutes,P<0.001),less intraoperative blood loss(206.92±37.09 mL vs 363.34±131.27 mL,P<0.001),and greater resection volume(345.11±31.40 mL vs 264.38±31.98 mL,P<0.001)compared to conventional LLR.CONCLUSION This novel technique enhances liver resection outcomes by reducing intraoperative complications such as bleeding and tumor compression.It facilitates a safer,in situ removal of complex liver tumors,even in challenging anatomical locations.Compared to conventional methods,this technique offers significant advantages,including reduced operative time,blood loss,and improved overall surgical efficiency.
基金Supported by National Natural Science Foundation of China,No.82002515,No.82273025 and No.82203460China Postdoctoral Science Foundation,No.2022TQ0070 and No.2022M710759Shanghai Municipal Commission of Science and Technology,No.22JC1403003,No.22XD1402200,No.19140901902 and No.22S31903800.
文摘BACKGROUND There are few clinicopathologic characteristics and clinical results for oesophageal gastrointestinal stromal tumours(GISTs).Thus,the objective of this study was to identify the clinicopathologic characteristics and clinical results of oesophageal GISTs.AIM To investigate endoscopic treatment effective of oesophageal GISTs.METHODS It was retrospective research that collected 32 patients with oesophageal GISTs treated by endoscopic resection(ER)between January 2012 and January 2023 in two Hospital.Clinicopathologic,endoscopic records,and follow-up data were collected and analysed.RESULTS Thirty-one patients underwent en bloc resection and 24(75.0%)lesions underwent R0 resection.The size of GISTs was 2.12±1.88 cm.The overall complication rate was 25.0%,including hydrothorax and post-endoscopic submucosal dissection electrocoagulation syndrome.The mean mitotic index was 3.34±5.04(median,1.50;range,1.00-4.00).Eighteen(56.3%),6(18.8%),2(6.3%),and 6(18.8%)patients were identified as very low,low,intermediate,and high risk,respectively.Three patients developed recurrence after a median follow-up of 64.69±33.13 months.The 5-year overall survival rate was 100%,and the disease-free survival rate was 90.6%.CONCLUSION ER is safe and effective for patients with low-risk oesophageal GISTs.Early detection of oesophageal GISTs is essential to achieve a favourable prognosis.
基金supported by grants from the Beijing Hospitals Authority Youth Program (12022B4010)BTCH Young Talent En-lightenment Program (2024QMRC24)CAMS Innovation Fund for Medical Sciences (2019-I2M-5–056)。
文摘Extracorporeal liver surgery(ELS), also known as liver autotransplantation, is a hybrid(cross-fertilized) surgery incorporating the technical knowledge from extreme liver and transplant liver surgeries, and recently became more embraced and popularized among leading centers. ELS could be summarized into three major categories, namely, ex-situ liver resection and autotransplantation(ELRA), ante-situm liver resection and autotransplantation(ALRA) and auxiliary partial liver autotransplantation(APLA). The successful development of ELS during the past 37 years is definitely inseparable from continuous effort s done by Chinese surgeons and researchers. Especially, the precision liver surgery paradigm has allowed to transform ELS into a modularized, more simplified, and standardized surgery, to upgrade surgical skills, to improve peri-operative outcome and long-term survival, to increase the capability of surgeons to select more complex diseases and to expand the level of medical service to the population. This review highlights the Chinese contributions to the field of ELS, focusing thereby on features of different surgical types, technical innovations, disease selection and surgical indication, patient prognosis and future perspectives.
文摘BACKGROUND Gastric cancer(GC)is a prevalent tumor in the digestive system,with around one million new cases reported annually,ranking it as the third most common malignancy.Reducing pain is a key research focus.This study evaluates the effect of nalbuphine on the analgesic effect and the expression of pain factors in patients after radical resection.AIM To provide a reference for postoperative analgesia methods.METHODS One hundred eight patients with GC,admitted between January 2022 and June 2024,underwent radical gastrectomy.They received a controlled analgesia pump and a transverse abdominis muscle plane block,divided into two groups of 54 patients in each group.The control group received sufentanil,while the observation group received nalbuphine as an analgesic.Postoperative analgesic effects,pain factor expression,and adverse effects were compared.RESULTS The resting pain and activity pain scores in the observation group at 6,12,24 and 48 hours were significantly lower than those in the control group.Additionally,the number of presses and consumption of the observation group at 48 hours were lower than those of the control group;and the response rate of the observation group was higher than that of the control group(P<0.05).The prostaglandin E2,substance P,and serotonin levels 24 hours after the observation group were lower than those in the control group,and the incidence of adverse reactions was 5.56%lower than 22.22%in the control group(P<0.05).CONCLUSION The findings suggest that nalbuphine enhances postoperative multimodal analgesia in patients with radical GC,effectively improving postoperative analgesic effect,relieving postoperative resting and active pain,and reducing postoperative pain factor expression,demonstrating its potential for clinical application.
基金Supported by the National Key Research and Development Program of China,No.2022YFC2503600。
文摘BACKGROUND The discrepancy between endoscopic biopsy pathology and the overall pathology of gastric low-grade intraepithelial neoplasia(LGIN)presents challenges in developing diagnostic and treatment protocols.AIM To develop a risk prediction model for the pathological upgrading of gastric LGIN to aid clinical diagnosis and treatment.METHODS We retrospectively analyzed data from patients newly diagnosed with gastric LGIN who underwent complete endoscopic resection within 6 months at the First Medical Center of Chinese People’s Liberation Army General Hospital between January 2008 and December 2023.A risk prediction model for the pathological progression of gastric LGIN was constructed and evaluated for accuracy and clinical applicability.RESULTS A total of 171 patients were included in this study:93 patients with high-grade intraepithelial neoplasia or early gastric cancer and 78 with LGIN.The logistic stepwise regression model demonstrated a sensitivity and specificity of 0.868 and 0.800,respectively,while the least absolute shrinkage and selection operator(LASSO)regression model showed sensitivity and specificity values of 0.842 and 0.840,respectively.The area under the curve(AUC)for the logistic model was 0.896,slightly lower than the AUC of 0.904 for the LASSO model.Internal validation with 30%of the data yielded AUC scores of 0.908 for the logistic model and 0.905 for the LASSO model.The LASSO model provided greater utility in clinical decision-making.CONCLUSION A risk prediction model for the pathological upgrading of gastric LGIN based on white-light and magnifying endoscopic features can accurately and effectively guide clinical diagnosis and treatment.
基金Supported by National Natural Science Foundation of China,No.82004298Jiangsu Graduate Research and Practice Innovation Program,China,No.KYCX23_2090.
文摘BACKGROUND Recently,several endoscopic techniques have been used to improve the R0 resection rate of rectal neuroendocrine neoplasms(R-NENs).However,none of these methods can achieve 100%complete resection(CR),particularly in the vertical direction.Endoscopic full-thickness resection(EFTR)has proven to be an effective method for the treatment of submucosal tumors but is seldom utilized in the eradication of R-NENs.AIM To review cases of R-NENs removed using EFTR and to evaluate the safety and efficacy of this technique.METHODS This retrospective cohort study enrolled 160 patients with pathologically confirmed R-NENs,including 132 who underwent endoscopic submucosal dissection(ESD)and 28 who underwent EFTR.Lesions were categorized as<1 cm,1-2 cm,and>2 cm in size.CR rate,en bloc resection rate,operation time,and complications were evaluated.Subgroup analyses and follow-up were also performed.RESULTS EFTR achieved 100%CR rates for lesions<1 cm and 1-2 cm,compared with 67.0%and 50.0%,respectively,in the ESD group.En bloc resection and successful removal of the R-NENs were achieved in all patients.Meanwhile,EFTR showed performance comparable to ESD in terms of operation time,hospitalization cost,and postoperative adverse events,except for a one-day longer hospital stay.We also analyzed the invasion depth of R-NENs based on full-thickness specimens.The data showed that 80%of lesions(<1 cm)and 85.7%of lesions(1-2 cm)had invaded the SM3 level or deeper at the time of resection.For ESD specimens,46.6%(<1 cm)and 89.3%(1-2 cm)of lesions had infiltrated more than 2000μm beneath the muscularis mucosae.CONCLUSION EFTR has shown superior performance in the resection of small R-NENs compared with that of ESD.
文摘BACKGROUND Complications associated with stomas—including parastomal hernia(PSH),pro-lapse,mucocutaneous separation,and stoma retraction—provide considerable postoperative challenges for colostomy patients.Selecting between extraperi-toneal colostomy(EPC)and transperitoneal colostomy(TPC)pathways is there-fore essential for mitigating these complications.AIM To analyze the existing data regarding the efficacy of EPC compared to TPC in reducing stoma-related complications post-colostomy.METHODS PubMed,Google Scholar,EMBASE,MEDLINE,and the Cochrane Library were adopted to uncover pertinent papers in which EPC and TPC approaches were compared.We then conducted a meta-analysis using RevMan 5.4.1.RESULTS Both laparoscopic(Lap)and open approaches showed a reduced incidence of PSH in EPC relative to TPC(P<0.00001 and P=0.02 respectively).In addition,Lap EPC depicted a lesser incidence of prolapse,mucocutaneous separation,and stoma retraction(P=0.007,P=0.03,and P=0.01,respectively)compared to Lap TPC.However,EPC and TPC did not differ with respect to operation time,blood loss,edema,ischemia,necrosis,or infection after the LAP approach.CONCLUSION The extraperitoneal approach may provide benefits in minimizing some stoma-related problems such as PSH,pro-lapse,mucocutaneous separation,and stoma retraction after colostomy surgery.
文摘In this article we comment on the paper by Xu et al describing retrospective data on endoscopic treatment outcome of esophageal gastrointestinal stromal tumors(GISTs).Esophageal GIST is a rare type of mesenchymal tumor.GISTs originate from the interstitial cells of Cajal,which are pacemaker cells involved in gut motility.GISTs are most commonly found in the stomach and small intestine,but esophageal involvement is rare.Esophageal GISTs account for<1%of all GISTs.Endoscopic resection remains the mainstay for small,localized tumors with excellent outcomes.However,larger tumors may require multidisciplinary strategies to provide the best oncological outcomes.Here,we discuss the usefulness of endoscopic ultrasound(EUS)of subepithelial tumors of the upper gastrointestinal tract.EUS is a crucial tool in the diagnosis,staging,and management of subepithelial masses.Given the subepithelial nature of these tumors,standard endoscopy is not adequate,making EUS essential for a comprehensive assessment.EUS provides accurate tumor size assessment and enables fine needle aspirations guided biopsy,for treatment planning.
文摘BACKGROUND The root of mesentery dissection is one of the critical maneuvers,especially in borderline resectable pancreatic head cancer.Intra-abdominal chyle leak(CL)including chylous ascites may ensue in up to 10%of patients after pancreatic resections.Globally recognized superior mesenteric artery(SMA)first approaches are invariably performed.The mesenteric dissection through the inferior infracolic approach has been discussed in this study emphasizing its post-operative impact on CL which is the cornerstone of this study.AIM To assess incidence,risk factors,clinical impact of CL following root of mesentery dissection,and the different treatment modalities.METHODS This is a retrospective study incorporating the patients who underwent dissection of the root of mesentery with inferior infracolic SMA first approach pancreat-oduodenectomy for the ventral body and uncinate mass of pancreas in the Department of Gastrointestinal and General Surgery of Kathmandu Medical College and Teaching Hospital from January 1,2021 to February 28,2024.Intraop-erative findings and postoperative outcomes were analyzed.RESULTS In three years,ten patients underwent root of mesentery dissection with inferior infracolic SMA first approach pancreatoduodenectomy.The mean age was 67.6 years with a male-to-female ratio of 4:5.CL was seen in four patients.With virtue of CL,Clavien-Dindo grade Ⅱ or higher morbidity was observed in four patients.Two patients had a hospital stay of more than 20 days with the former having a delayed gastric emptying and the latter with long-term total parenteral nutrition requirement.The mean operative time was 330 minutes.Curative resection was achieved in 100%of the patients.The mean duration of the intensive care unit and hospital stay were 2.55±1.45 days and 15.7±5.32 days,respectively.CONCLUSION Root of mesentery dissection with lymphadenectomy and vascular resection correlated with occurrence of CL.After complete curative resection,these were managed with total parenteral nutrition without adversely impacting outcome.
文摘Transplantation of the left lateral section(LLS)of the liver is now an established practice for treating advanced diffuse and unresectable focal liver diseases in children,with variants of the LLS primarily used in infants.However,the surgical challenge of matching the size of an adult donor's graft to the volume of a child's abdomen remains significant.This review explores historical developments,various approaches to measuring the required functional liver mass,and techniques to prevent complications associated with large-for-size grafts in infants.
基金Supported by Nanchang High-Level Scientific and Technological Innovation Talents‘Double Hundred Plan’Project,China,No.2022-312.
文摘Rectal neuroendocrine tumor(rNET)is an indolent malignancy often detected during colonoscopy screening.The incidence of rNET has increased approximately 10-fold over the past 30 years.Most rNETs detected during screening endoscopy are small,measuring<10 mm.Current guidelines recommend endoscopic resection for small,well-differentiated rNET using modified endoscopic submucosal resection(mEMR)or endoscopic submucosal dissection.However,the optimal endoscopic treatment method remains uncertain.This paper summarizes the evidence on mEMR with submucosal stretching,mEMR without submucosal stretching,endoscopic submucosal dissection and endoscopic full-thickness resection.Given that rNETs often exhibit submucosal invasion,achieving adequate resection depth is crucial to ensure histological complete resection.mEMR with submucosal stretching appears favorable due to its high rate of histological complete resection,safety and convenience.Risk factors associated with lymph node and distant metastases are also discussed.A treatment algorithm is proposed to facilitate clinical decision-making.
文摘Colorectal polyps remain a significant health concern because they can develop into cancer.Therefore,accurate assessment and diagnosis of polyps,along with appropriate treatment decisions,are crucial in preventing complications or malignant transformation.Some polyps are classified as complex polyps,which means they fail to elevate due to a scar from a previously removed polyp or can be determined by a scoring system like the size/morphology/site/access score,which considers factors like site,morphology,size,and access.Management of complex colorectal polyps involves various options,including endoscopic and surgical approaches.Endoscopic mucosal resection(EMR)may be challenging in scarred polyps,as inadequate lifting can result in incomplete resection or recurrence.As a more advanced alternative,endoscopic submucosal dissection(ESD)is suitable for larger lesions,enabling en-bloc resection even in complex cases with EMR.However,ESD requires expertise and is more time-consuming than EMR,often necessitating hospitalization due to its complexity.Endoscopic full-thickness resection could be a viable alternative for managing scarred polyps.Endoscopic powered resection,either alone or in combination with other modalities,can also be used to achieve less extensive resection.Managing complications during the procedure or post-procedurally is equally important,as bleeding or perforations can be fatal.Careful patient selection based on individual profiles and risk factors,along with the identification of any signs of malignancy,is crucial before treatment to avoid negative post-treatment outcomes.
文摘BACKGROUND Underwater endoscopic mucosal resection(UEMR)has been shown to be a good treatment option for the management of nonpedunculated polyps≥10 mm since its introduction.However,there is a paucity of randomized controlled trials(RCTs)in Asia.AIM To compare the efficacy and safety of UEMR with those of conventional EMR(CEMR)in treating nonpedunculated colorectal lesions.METHODS We carried out this RCT at a tertiary hospital from October 2022 to July 2024.Patients with nonpedunculated colorectal neoplasms ranging from 10 mm to 30 mm in size were randomly assigned to either the UEMR or CEMR group.The primary outcome was the curative resection(R0)rate.The secondary outcomes included en bloc resection,procedure time,adverse events,and the number of clips used for defect closure.RESULTS A total of 260 patients with 260 lesions(130 in each UEMR and CEMR group)were recruited.The median age was 58(27-85)years,the male/female ratio was 1.74,and the median lesion size was 20(10-30 mm)mm.Compared with CEMR,UEMR was associated with a significantly greater curative resection(R0)rate(98.4%vs 90.3%;P=0.007),greater en bloc resection rate(100%vs 94.6%;P=0.014),shorter procedure time(65 vs 185 seconds;P<0.001),lower rate of bleeding complications(1.5%vs 10%;P=0.003),and fewer clips used(2 vs 3;P<0.001).No perforations were observed in either group.CONCLUSION Compared with CEMR,UEMR has a higher R0 rate,greater en bloc resection rate,shorter procedure time,fewer bleeding complications,and clips used in the management of nonpedunculated colorectal neoplasms.
基金supported by grants from the National Natural Science Foundation of China (82150 0 04)the National Municipal Key Clinical Specialtythe Clinical Research Project for Major Diseases in Municipal Hospitals (SHDC2020CR1022B)。
文摘Liver transplantation represents a complex surgical procedure and serves as a curative treatment for patients presenting an acute or chronic end-stage liver disease, or carefully selected liver malignancy. A significant gap still exists between the number of available donor organs and potential recipients. The use of an otherwise-wasted resected liver lobe from patients with benign liver tumors is a new, albeit small, option to alleviate the allograft shortage. This review provides evidence that resected liver lobes may be used successfully in liver transplantation.
文摘The term subepithelial lesions encompasses a wide array of pathology of which numerous benign and malignant pathologies are grouped.A subset of these lesions are termed gastric mesenchymal tumours of which some have innate malignant potential.Currently there is various guidance on the recommended approach to the investigation and management of these lesions and there exists multiple methods of resection.Lin et al have developed and proposed a new method of resection of these gastric mesenchymal tumours within the field of endoscopy,a procedure they have termed endoscopic calabash ligation and resection.This editorial aims to outlay the current landscape for gastric mesenchymal tumours with regards to the various guidelines and resection techniques while comparing Lin et al’s new technique to those that are already established in the field of endoscopy.Advancements in endoscopy that maintain or improve patient outcomes compared to the gold standard approach are exciting developments.Lin et al’s study suggests that their technique is comparable in regard to patient outcomes while simultaneously being more efficient in its use of hospital resources including procedural time.Whilst the data and analysis proposed in the study is promising,there are areas that need to be addressed before advocating the procedure for widespread use.However,with further studies and analysis this may be foreseeable in the future.
文摘In this paper,we comment on the article by Gu et al published in 2024,invest-igating whether there were differences in the clinical/perioperative outcomes of endoscopic and laparoscopic resections of gastric stromal tumors.Compared with most carcinomas,gastrointestinal stromal tumors are quite common worldwide and have a better prognosis.However,they respond to specific chemotherapies and do not routinely require standard lymphadenectomy.The gastric origin is known to be the most represented.Survival after proven radical surgery is ex-cellent,with recurrences being extremely infrequent.Currently,induction/pe-rioperative chemotherapy for high-risk tumors larger than 5 cm can downstage neoplasia and maintain good survival.Therefore,the standard of care for non-metastatic,resectable tumors is surgical excision(avoiding formal lymphaden-ectomy)with or without chemotherapy.In the case of small-(2 cm)to medium-(5 cm)sized tumors,minimally invasive surgical approaches(laparoscopic or ro-botic)have been advocated,and more recently,a purely endoscopic technique has also been proposed.All these interventions are feasible and effective,although no definitive results have been published to prove the superiority of one over another;however,further investigation of its associated oncologic outcomes is still needed.Unfortunately,rigorous,prospective,randomized controlled trials are challenging to conduct,develop,and receive ethical approval for,whereas the final decision of the surgical route is often related to the availability of instru-mentation and local expertise.
基金Supported by High-level Research Projects of China-Japan Friendship Hospital,No.2022-NHLHCRF-LX-03-0301 and No.2023-NHLHCRF-LXYZ-01.
文摘Combined hepatocellular cholangiocarcinoma(cHCC-CCA)is a rare and ag-gressive primary liver malignancy characterized by features of both HCC and CCA.Preoperative diagnosis remains challenging because of overlapping i-maging and histopathological features,which often lead to misclassification.Although liver resection is the primary curative therapy,the efficacy of liver transplantation(LT)remains controversial.Historically,LT has been considered contraindicated owing to the poor prognosis,high recurrence rate of cHCC-CCA,and the potential for organ wastage.Recent studies have suggested that LT may benefit carefully selected patients,particularly those with early-stage tumors or cirrhosis.However,there is no consensus on the criteria for LT in patients with cHCC-CCA.Lymphadenectomy and vascular resection strategies were discussed along with locoregional and systemic therapies.This review synthesized the current evidence on surgical strategies for cHCC-CCA,focusing on evolving LT criteria and outcomes.
