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GGN repeat length of the androgen receptor gene is associated with antral follicle count in Chinese women undergoing controlled ovarian stimulation
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作者 LIU Xinyan FAN Qi +5 位作者 DENG Mingfen XU Yan GUO Jing CAO Ping ZHOU Canquan XU Yanwen 《南方医科大学学报》 北大核心 2025年第2期213-222,共10页
Objective To evaluate the association of GGN repeat polymorphism of androgen receptor(AR)with ovarian reserve and ovarian response in controlled ovarian stimulation(COS).Methods This genetic association study was cond... Objective To evaluate the association of GGN repeat polymorphism of androgen receptor(AR)with ovarian reserve and ovarian response in controlled ovarian stimulation(COS).Methods This genetic association study was conducted among a total of 361 women aged≤40 years with basal FSH≤12 U/L undergoing the GnRH-agonist long protocol for COS in a university affiliated IVF center.GGN repeat in the AR gene was analyzed with Sanger sequencing.The primary endpoint was the number of antral follicle counts(AFCs),and the secondary endpoints were stimulation days,total dose of gonadotropin(Gn)used,total number of retrieved oocytes,ovarian sensitivity index,and follicular output rate.Results The GGN repeat in exon 1 of the AR gene ranged from 13 to 24,and the median repeat length was 22.Based on the genotypes(S for GGN repeats<22,L for GGN repeats≥22),the patients were divided into 3 groups:SS,SL,and LL.Generalized regression analysis indicated that the number of AFCs in group SS was significantly lower than those in group SL(adjusted β=1.8,95%CI:0.2-3.4,P=0.024)and group LL(adjusted β=1.5,95%CI:0.2-2.7,P=0.021).No significant difference was observed in the number of AFCs between group SL and group LL(P>0.05).Generalized regression analysis indicated no significant differences in ovarian stimulation parameters among the 3 groups,either before or after adjusting for confounding factors(P>0.05).Conclusion GGN repeat length on the AR gene is associated with AFC but not with ovarian response in Chinese women,indicating that AR gene polymorphisms may affect ovarian reserve. 展开更多
关键词 androgen receptor GGN polymorphism ovarian reserve ovarian stimulation
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Systematic review:Laparoscopic fundoplication for gastroesophageal reflux disease in partial responders to proton pump inhibitors 被引量:11
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作者 Lars Lundell Martin Bell Magnus Ruth 《World Journal of Gastroenterology》 SCIE CAS 2014年第3期804-813,共10页
AIM: To assess laparoscopic fundoplication (LF) in partial responders to proton pump inhibitors (PPIs) for gastroesophageal reflux disease (GERD).
关键词 Laparoscopic fundoplication Gastroesophageal reflux disease Partial response Proton pump inhibitors Systematic review
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Early detection and prevention of pancreatic cancer:Is it really possible today? 被引量:13
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作者 Marco Del Chiaro Ralf Segersvrd +1 位作者 Matthias Lohr Caroline Verbeke 《World Journal of Gastroenterology》 SCIE CAS 2014年第34期12118-12131,共14页
Pancreatic cancer is the 4<sup>th</sup> leading cause of cancer-related death in Western countries. Considering the low incidence of pancreatic cancer, population-based screening is not feasible. However, ... Pancreatic cancer is the 4<sup>th</sup> leading cause of cancer-related death in Western countries. Considering the low incidence of pancreatic cancer, population-based screening is not feasible. However, the existence of a group of individuals with an increased risk to develop pancreatic cancer has been well established. In particular, individuals suffering from a somatic or genetic condition associated with an increased relative risk of more than 5- to 10-fold seem to be suitable for enrollment in a surveillance program for prevention or early detection of pancreatic cancer. The aim of such a program is to reduce pancreatic cancer mortality through early or preemptive surgery. Considering the risk associated with pancreatic surgery, the concept of preemptive surgery cannot consist of a prophylactic removal of the pancreas in high-risk healthy individuals, but must instead aim at treating precancerous lesions such as intraductal papillary mucinous neoplasms or pancreatic intraepithelial neoplasms, or early cancer. Currently, results from clinical trials do not convincingly demonstrate the efficacy of this approach in terms of identification of precancerous lesions, nor do they define the outcome of the surgical treatment of these lesions. For this reason, surveillance programs for individuals at risk of pancreatic cancer are thus far generally limited to the setting of a clinical trial. However, the acquisition of a deeper understanding of this complex area, together with the increasing request for screening and treatment by individuals at risk, will usher pancreatologists into a new era of preemptive pancreatic surgery. Along with the growing demand to treat individuals with precancerous lesions, the need for low-risk investigation, low-morbidity operation and a minimally invasive approach becomes increasingly pressing. All of these considerations are reasons for preemptive pancreatic surgery programs to be undertaken in specialized centers only. 展开更多
关键词 Preemptive pancreatic surgery Cystic tumors of the pancreas Familial pancreatic cancer Early detection Pancreas cancer screening
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Cerebral venous thrombosis and heparin-induced thrombocytopenia in an 18-year old male with severe ulcerative colitis 被引量:4
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作者 Gudrun Scheving Thorsteinsson Maria Magnussson +4 位作者 Lena M Hallberg Nils Gunnar Wahlgren Fredrik Lindgren Petter Malmborg Thomas H Casswall 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第28期4576-4579,共4页
The risk of thromboembolism is increased in inflammatory bowel disease and its symptoms may be overlooked. Furthermore, its treatment can be complex and is not without complications. We describe a case of an adolescen... The risk of thromboembolism is increased in inflammatory bowel disease and its symptoms may be overlooked. Furthermore, its treatment can be complex and is not without complications. We describe a case of an adolescent boy who developed a cerebral sinus venous thrombosis during a relapse of his ulcerative colitis and who, while on treatment with heparin, developed heparin-induced thrombocytopenia (HIT). The treatment was then switched to fondaparinux, a synthetic and selective inhibitor of activated factor . 展开更多
关键词 Inflammatory bowel disease Ulcerative colitis Cerebral venous thrombosis Heparin-induced thrombocytopenia FONDAPARINUX
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Endoscopic mucosal resection and endoscopic submucosal dissection in the treatment of sporadic nonampullary duodenal adenomatous polyps 被引量:14
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作者 Joana Marques Francisco Baldaque-Silva +3 位作者 Pedro Pereira Urban Arnelo Naohisa Yahagi Guilherme Macedo 《World Journal of Gastrointestinal Endoscopy》 CAS 2015年第7期720-727,共8页
Although uncommon, sporadic nonampullary duodenal adenomas have a growing detection due to the widespread of endoscopy. Endoscopic therapy is being increasingly used for these lesions, since surgery, considered the st... Although uncommon, sporadic nonampullary duodenal adenomas have a growing detection due to the widespread of endoscopy. Endoscopic therapy is being increasingly used for these lesions, since surgery, considered the standard treatment, carries significant morbidity and mortality. However, the knowledge about its risks and benefits is limited, which contributes to the current absence of standardized recommendations. This review aims to discuss the efficacy and safety of endoscopic mucosal resection(EMR) and endoscopic submucosal dissection(ESD) in the treatment of these lesions. A literature review was performed, using the Pubmed database with the query: "(duodenum or duodenal)(endoscopy or endoscopic) adenoma resection", in the human species and in English. Of the 189 retrieved articles, and after reading their abstracts, 19 were selected due to their scientific interest. The analysis of their references, led to the inclusion of 23 more articles for their relevance in this subject. The increased use of EMR in the duodenum has shown good results with complete resection rates exceeding 80% and low complication risk(delayed bleeding in less than 12% of the procedures). Although rarely used in the duodenum, ESD achieves close to 100% complete resection rates, but is associated with perforation and bleeding risk in up to one third of the cases. Even though literature is insufficient to draw definitive conclusions, studies suggest that EMR and ESD are valid options for the treatment of nonampullary adenomas. Thus, strategies to improve these techniques, and consequently increase the effectiveness and safety of the resection of these lesions, should be developed. 展开更多
关键词 POLYPS DUODENUM ADENOMA RESECTION Endoscopy
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基于Gd⁃EOB⁃DTPA增强MRI的列线图模型在预测肝肿瘤术后肝衰竭中的临床价值 被引量:3
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作者 李长峰 王强 +4 位作者 瞿成名 李雪松 蔡萍 张雷达 马宽生 《中国癌症防治杂志》 CAS 2021年第5期477-483,共7页
目的构建基于Gd⁃EOB⁃DTPA增强MRI的列线图模型,探讨其预测肝肿瘤术后肝衰竭(post⁃hapatectomy liver failure,PHLF)的临床价值。方法回顾性分析2019年9月—2020年11月于陆军军医大学第一附属医院肝胆外科行肝肿瘤切除的117例肝癌患者的... 目的构建基于Gd⁃EOB⁃DTPA增强MRI的列线图模型,探讨其预测肝肿瘤术后肝衰竭(post⁃hapatectomy liver failure,PHLF)的临床价值。方法回顾性分析2019年9月—2020年11月于陆军军医大学第一附属医院肝胆外科行肝肿瘤切除的117例肝癌患者的临床资料,并利用术前Gd⁃EOB⁃DTPA增强MRI肝胆期影像计算肝⁃肌比率(liver⁃to⁃muscle ratio,LMR),定量评估肝功能。通过单因素及多因素logistic回归分析筛选独立预测因子并构建预测模型。绘制ROC曲线和校正曲线评估模型。结果单因素及多因素logistic回归分析筛选结果显示,终末期肝病模型(model for end⁃stage liver disease,MELD)评分、手术方式和LMR是预测PHLF的独立因素(均P<0.05)。基于这些因素构建的列线图预测模型的ROC曲线下面积为0.83,敏感度为91.4%,特异度为64.6%。校正曲线显示模型的一致性较好。结论基于Gd⁃EOB⁃DTPA增强MRI和临床指标构建的列线图模型在预测PHLF中显示了较高的预测准确性,具有潜在的临床应用价值。 展开更多
关键词 原发性肝癌 Gd⁃EOB⁃DTPA增强MRI 术后肝衰竭 列线图 肝功能 预测模型
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Extent of lymphadenectomy has no impact on postoperative complications after gastric cancer surgery in Sweden 被引量:2
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作者 chih-han kung huan song +7 位作者 weimin ye magnus nilsson jan johansson ioannis rouvelas tomoyuki irino lars lundell jon a tsai mats lindblad 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2017年第4期313-322,共10页
Objective: Curative gastric cancer surgery entails removal of the primary tumor with adequate margins including regional lymph nodes. European randomized controlled trials with recruitment in the 1990's reported inc... Objective: Curative gastric cancer surgery entails removal of the primary tumor with adequate margins including regional lymph nodes. European randomized controlled trials with recruitment in the 1990's reported increased morbidity and mortality for D2 compared to D 1. Here, we examined the extent of lymphadenectomy during gastric cancer surgery and the associated risk for postoperative complications and mortality using the strengths of a population-based study. Methods: A prospective nationwide study conducted within the National Register of Esophageal and Gastric Cancer. All patients in Sweden from 2006 to 2013 who underwent gastric cancer resections with curative intent were included. Patients were categorized into DO, D I, or D I +/D2, and analyzed regarding postoperative morbidity and mortality using multivariable logistic regression. Results: In total, 349 (31.7%) patients had a DO, 494 (44.9%) DI, and 258 (23.4%) DI+/D2 lymphadenectomy. The 30-d postoperative complication rates were 25.5%, 25.1% and 32.2 % (DO, D I and D1 +/D2, respectively), and 90-d mortality rates were 8.3%, 4.3 % and 5.8%. After adjustment for confounders, in mukivariable analysis, there were no significant differences in risk for postoperative complications between the lymphadenectomy groups. For 90-d mortality, there was a lower risk for D1 vs. DO. Conclusions: The majority of gastric cancer resections in Sweden have included only a limited lymphadenectomy (DO and DI). More extensive lymphadenectomy (DI+/D2) seemed to have no impact on postoperative morbidity or mortality. 展开更多
关键词 Gastric cancer LYMPHADENECTOMY national database MORTALITY COMPLICATIONS
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Methods and outcomes of screening for pancreatic adenocarcinoma in high-risk individuals 被引量:3
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作者 Gabriele Capurso Marianna Signoretti +5 位作者 Roberto Valente Urban Arnelo Matthias Lohr Jan-Werner Poley Gianfranco Delle Fave Marco Del Chiaro 《World Journal of Gastrointestinal Endoscopy》 CAS 2015年第9期833-842,共10页
Pancreatic ductal adenocarcinoma(PDAC) is a lethal neoplasia, for which secondary prevention(i.e., screening) is advisable for high-risk individuals with "familiar pancreatic cancer" and with other specific ... Pancreatic ductal adenocarcinoma(PDAC) is a lethal neoplasia, for which secondary prevention(i.e., screening) is advisable for high-risk individuals with "familiar pancreatic cancer" and with other specific genetic syndromes(Peutz-Jeghers, p16, BRCA2, PALB and mismatch repair gene mutation carriers). There is limited evidence regarding the accuracy of screening tests, their acceptability, costs and availability, and agreement on whom to treat. Successful target of screening are small resectable PDAC, intraductal papillary mucinous neoplasms with high-grade dysplasia and advanced pancreatic intraepithelial neoplasia. Both magnetic resonance imaging(MRI) and endoscopic ultrasound(EUS) are employed for screening, and the overall yield for pre-malignant or malignant pancreatic lesions is of about 20% with EUS and 14% with MRI/magnetic resonance colangiopancreatography. EUS performs better for solid and MRI for cystic lesions. However, only 2% of these detected lesions can be considered a successful target, and there are insufficient data demonstrating that resection of benign or low grade lesions improves survival. Many patients in the published studies therefore seemed to have received an overtreatment by undergoing surgery. It is crucial to better stratify the risk of malignancy individually, and to better define optimal screening intervals and methods either with computerized tools or molecular biomarkers, possibly in large multicentre studies. At the moment, screening should be carefully performed within research protocols at experienced centres, offering involved individuals medical and psychological advice. 展开更多
关键词 ENDOSCOPIC ultrasound PANCREATIC cancer SCREENING HIGH-RISK individuals Magnetic RESONANCE
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钆塞酸二钠增强MRI在定量肝功能评估的应用现状 被引量:7
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作者 王安荣 王强 《中国癌症防治杂志》 CAS 2021年第1期94-99,共6页
我国肝癌患者多伴慢性肝病,肝功能存在不同程度降低,充分的术前肝脏储备功能评估可以保障手术顺利实施及术后平稳康复。钆塞酸二钠(gadolinium ethoxybenzyl-diethylenetriaminepentaacetic acid,Gd-EOB-DTPA)增强MRI是临床上常用的影... 我国肝癌患者多伴慢性肝病,肝功能存在不同程度降低,充分的术前肝脏储备功能评估可以保障手术顺利实施及术后平稳康复。钆塞酸二钠(gadolinium ethoxybenzyl-diethylenetriaminepentaacetic acid,Gd-EOB-DTPA)增强MRI是临床上常用的影像学检查方法,近年来,随着MRI技术的发展及基础研究的深入,国内外大量研究显示Gd-EOB-DTPA增强MRI较传统肝功能评估方法更有优势,不仅能准确地评估肝功能,而且可用于肝纤维化诊断和分级、预留肝脏功能评估和增长潜力预测、术后肝衰竭预测等。同时,也可在肝脏肿瘤患者Gd-EOB-DTPA常规增强MRI上"一站式"获得术前所需信息,了解节段性肝功能分布情况,全面评估患者病情,以实施精准肝胆外科手术。本文总结Gd-EOB-DTPA用于定量肝功能评估的分子基础、技术优势、常用评估方法和指标、总体评估效能及目前应用领域等研究进展。 展开更多
关键词 磁共振 钆塞酸二钠 肝功能 精准肝脏外科 肝脏疾病
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Zinc deficiency in patients with chronic pancreatitis 被引量:3
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作者 Miroslav Vujasinovic AleksANDra Hedstr?m +4 位作者 Patrick Maisonneuve Roberto Valente Henrik von Horn J-Matthias L?hr Stephan L Haas 《World Journal of Gastroenterology》 SCIE CAS 2019年第5期600-607,共8页
BACKGROUND Zinc is a key element in numerous proteins and plays an important role in essential cell functions such as defense against free radicals and DNA damage repair. Chronic pancreatitis(CP) is a chronic inflamma... BACKGROUND Zinc is a key element in numerous proteins and plays an important role in essential cell functions such as defense against free radicals and DNA damage repair. Chronic pancreatitis(CP) is a chronic inflammation with progressive fibrosis of pancreas ultimately resulting in pancreatic exocrine insufficiency(PEI),which is associated with malnutrition. Studies analyzing zinc levels in patients with CP are sparse and lead to conflicting results.AIM To investigate serum zinc levels in patients with CP of various etiologies.METHODS Between October 2015 and March 2018, patients with a diagnosis of CP were identified and recruited from the Pancreatic Outpatient Clinic at the Karolinska University Hospital in Stockholm, Sweden. Demographic, clinical and laboratory data were analyzed. Etiology of CP was determined according to the MANNHEIM classification system into the following etiological subcategories:alcohol consumption, nicotine consumption, hereditary factors, efferent pancreatic duct factors and immunological factors. Pancreatic exocrine function was defined as normal(fecal elastase 1 > 200 μg/g), mildly reduced(100-200μg/g) and severely reduced(fecal elastase 1 < 100 μg/g).RESULTS A total of 150 patients were included in the analysis. Zinc deficiency(< 11μmol/L) was present in 39(26.0%) of patients: 22 females and 17 males. In the group of patients with zinc deficiency, 76.7% of patients had an exocrine pancreatic insufficiency(FE-1 < 200 μg/g). Older age was significantly associated with low zinc levels. Following a univariate analysis, patients aged 60-69 and patients ≥ 70 years of age had a significantly higher prevalence of zinc deficiencies compared to patients < 40 years of age [OR: 3.8, 95%CI(1.08-13.4); P= 0.04]; [OR 6.26, 95%CI(1.94-20.2), P > 0.002]. Smoking and number of packyears were additionally associated with low zinc levels. The risk of zinc deficiency in current smokers and smokers with ≥ 20 pack-years was approximately three times higher compared to those who had never smoked.Gender, body mass index, etiology of CP, presence of diabetes mellitus, levels of glycated hemoglobin(HbA1 c), bone mineral density, alcohol intake and presence of PEI were not associated with low zinc levels.CONCLUSION Zinc deficiency is common in patients with CP and is significantly associated with age ≥ 60, smoking and the number of pack-years, but not with PEI. 展开更多
关键词 Zinc PANCREAS PANCREATIC EXOCRINE INSUFFICIENCY Chronic PANCREATITIS MALNUTRITION
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Morphological alterations and redox changes associated with hepatic warm ischemia-reperfusion injury 被引量:1
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作者 Rim Jawad Melroy D'souza +5 位作者 Lisa Arodin Selenius Marita Wallenberg Lundgren Olof Danielsson Greg Nowak Mikael Bjornstedt Bengt Isaksson 《World Journal of Hepatology》 CAS 2017年第34期1261-1269,共9页
AIM To study the effects of warm ischemia-reperfusion(I/R) injury on hepatic morphology at the ultrastructural level and to analyze the expression of the thioredoxin(TRX)and glutaredoxin(GRX) systems.METHODS Eleven pa... AIM To study the effects of warm ischemia-reperfusion(I/R) injury on hepatic morphology at the ultrastructural level and to analyze the expression of the thioredoxin(TRX)and glutaredoxin(GRX) systems.METHODS Eleven patients undergoing liver resection were subjected to portal triad clamping(PTC). Liver biopsies were collected at three time points; first prior to PTC(baseline), 20 min after PTC(post-ischemia) and 20 min after reperfusion(post-reperfusion). Electron microscopy and morphometry were used to study and quantify ultrastructural changes, respectively. Additionally, gene expression analysis of TRX and GRX isoforms was performed by quantitative PCR. For further validation of redox protein status, immunogold staining was performed for the isoforms GRX1 and TRX1.RESULTS Post-ischemia, a significant loss of the liver sinusoidal endothelial cell(LSEC) lining was observed(P = 0.0003) accompanied by a decrease of hepatocyte microvilli in the space of Disse. Hepatocellular morphology was well preserved apart from the appearance of crystalline mitochondrial inclusions in 7 out of 11 patients. Postreperfusion biopsies had similar features as post-ischemia with the exception of signs of a reactivation of the LSECs. No changes in the expression of redox-regulatory genes could be observed at mR NA level of the isoforms of the TRX family but immunoelectron microscopy indicated a redistribution of TRX1 within the cell.CONCLUSION At the ultrastructural level, the major impact of hepatic warm I/R injury after PTC was borne by the LSECs with detachment and reactivation at ischemia and reperfusion, respectively. Hepatocytes morphology were well preserved. Crystalline inclusions in mitochondria were observed in the hepatocyte after ischemia. 展开更多
关键词 Hepatic ischemia-reperfusion injury Ischemia reperfusion injury Warm ischemia-reperfusion injury Glutaredoxins THIOREDOXINS Electron microscopy Oxidative stress Portal triad clamping
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Arterial ischemia in the deportalized liver following associating liver partition and portal vein ligation for staged hepatectomy 被引量:1
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作者 Srinivas Sanjeevi Ernesto Sparrelid +2 位作者 Stefan Gilg Eduard Jonas Bengt Isaksson 《World Journal of Hepatology》 CAS 2015年第23期2492-2496,共5页
Associating liver partition and portal vein ligation for staged hepatectomy(ALPPS) is a novel 2-stage technique intended to induce rapid growth of the future liver remnant(FLR). Initial reports of a 12% mortality rate... Associating liver partition and portal vein ligation for staged hepatectomy(ALPPS) is a novel 2-stage technique intended to induce rapid growth of the future liver remnant(FLR). Initial reports of a 12% mortality rate have sparked debate regarding the safety of the procedure. A 64 years old male was planned for a rightsided hemi-hepatectomy due to colorectal cancer liver metastases. Intra-operatively it was decided to convert to an ALPPS due to unexpectedly small segments 2-4. Post-operative serum laboratory tests indicated an acute liver failure and radiological imaging showed no sign of arterial blood flow to the right hemi-liver. A computed tomography examination on post-operative day 3 revealed that the FLR had increased from 290 to 690 m L in 3 d(138% growth). In the following days serum values gradually improved and stage 2 was carried out on post-operative day 7. The rest of the hospital stay was uneventful and the patient made a full recovery. ALPPS is a fascinating advancement in liver surgery. Despite severe post-operative complications, in properly selected cases it provides successful outcomes that other modalities of treatment cannot offer. 展开更多
关键词 Associating LIVER PARTITION and portal VEIN ligati
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Person-centered endoscopy safety checklist: development,implementation,and evaluation 被引量:1
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作者 Hanna Dubois Peter T Schmidt +1 位作者 Johan Creutzfeldt Mia Bergenmar 《World Journal of Gastroenterology》 SCIE CAS 2017年第48期8605-8614,共10页
AIM To describe the development and implementation of a person-centered endoscopy safety checklist and to evaluate the effects of a "checklist intervention".METHODS The checklist,based on previously publishe... AIM To describe the development and implementation of a person-centered endoscopy safety checklist and to evaluate the effects of a "checklist intervention".METHODS The checklist,based on previously published safety checklists,was developed and locally adapted,taking patient safety aspects into consideration and using a person-centered approach. This novel checklist was introduced to the staff of an endoscopy unit at a Stockholm University Hospital during half-day seminars and team training sessions. Structured observations of the endoscopy team's performance were conducted before and after the introduction of the checklist. In addition,questionnaires focusing on patient participation,collaboration climate,and patient safety issues were collected from patients and staff. RESULTS A person-centered safety checklist was developed and introduced by a multi-professional group in the endoscopy unit. A statistically significant increase in accurate patient identity verification by the physicians was noted(from 0% at baseline to 87% after 10 mo,P < 0.001),and remained high among nurses(93% at baseline vs 96% after 10 mo,P = nonsignificant). Observations indicated that the professional staff made frequent attempts to use the checklist,but compliance was suboptimal: All items in the observed nurse-led "summaries" were included in 56% of these interactions,and physicians participated by directly facing the patient in 50% of the interactions. On the questionnaires administered to the staff,items regarding collaboration and the importance of patient participation were rated more highly after the introduction of the checklist,but this did not result in statistical significance(P = 0.07/P = 0.08). The patients rated almost all items as very high both before and after the introduction of the checklist;hence,no statistical difference was noted.CONCLUSION The intervention led to increased patient identity verification by physicians-a patient safety improvement. Clear evidence of enhanced person-centeredness or team work was not found. 展开更多
关键词 CHECKLIST COMMUNICATION ENDOSCOPY OBSERVATION Patient-centered care Person-centered care Patient safety TEAMWORK
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Sex differences and effects of oestrogen in rat gastric mucosal defence 被引量:1
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作者 Richard Shore Hakan Bjorne +4 位作者 Yoko Omoto Anna Siemiatkowska Jan-Ake Gustafsson Mats Lindblad Lena Holm 《World Journal of Gastroenterology》 SCIE CAS 2017年第3期426-436,共11页
AIM To evaluate sex differences and the effects of oestrogen administration in rat gastric mucosal defence.METHODS Sex differences in gastric mucus thickness and accumulation rate, absolute gastric mucosal blood flow ... AIM To evaluate sex differences and the effects of oestrogen administration in rat gastric mucosal defence.METHODS Sex differences in gastric mucus thickness and accumulation rate, absolute gastric mucosal blood flow using microspheres, the integrity of the gastric mucosal epithelium in response to a chemical irritant and the effects of oestrogen administration on relative gastric mucosal blood flow in an acute setting was assessed in an in vivo rat experimental model. Subsequently, sex differences in the distribution of oestrogen receptors and calcitonin gene related peptide in the gastric mucosa of animals exposed to oestrogen in the above experiments was evaluated using immunohistochemistry.RESULTS The absolute blood flow in the GI-tract was generally higher in males, but only significantly different in the corpus part of the stomach (1.12 ± 0.12 m L/min·g in males and 0.51 ± 0.03 m L/min·g in females) (P = 0.002). After removal of the loosely adherent mucus layer the thickness of the firmly adherent mucus layer in males and females was 79 ± 1 μm and 80 ± 3 μm respectively. After 60 min the mucus thickness increased to 113 ± 3 μm in males and 121 ± 3 μm in females with no statistically significant difference seen between the sexes. Following oestrogen administration(0.1 followed by 1 μg/kg·min), mean blood flow in the gastric mucosa decreased by 31% [68 ± 13 perfusion units (PFU)] in males which was significantly different compared to baseline(P = 0.02). In females however, mean blood flow remained largely unchanged with a 4% (5 ± 33 PFU) reduction. The permeability of the gastric mucosa increased to a higher level in females than in males (P = 0.01) after taurocholate challenge. However, the calculated mean clearance increase did not significantly differ between the sexes [0.1 ± 0.04 to 1.1 ± 0.1 m L/min·100 g in males and 0.4 ± 0.3 to 2.1 ± 0.3 m L/min·100 g in females(P = 0.065)]. There were no significant differences between 17β-Estradiol treated males (mean ratio of positive staining ± SEM)(0.06 ± 0.07) and females(0.11 ± 0.11) in the staining of ERα (P = 0.24). Also, there were no significant differences between 17β-Estradiol treated males (0.18 ± 0.21) and females (0.06 ± 0.12) in the staining of ERβ (P = 0.11). Finally, there were no significant differences between 17β-Estradiol treated males (0.04 ± 0.05) and females (0.11 ± 0.10) in the staining of CGRP(P = 0.14).CONCLUSION Gastric mucosal blood flow is higher in male than in female rats and is reduced in male rats by oestrogen administration. 展开更多
关键词 Sex differences Gastric mucosal defence Blood flow OESTROGEN Gastric physiology MUCUS
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Cystic tumors of the pancreas: Opportunities and risks 被引量:1
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作者 Marco Del Chiaro Caroline Verbeke 《World Journal of Gastrointestinal Pathophysiology》 CAS 2015年第2期29-32,共4页
Pancreatic cystic neoplasms(PCNs) are a high prevalence disease. It is estimated that about 20% of the general population is affected by PCNs. Some of those lesions can progress till cancer, while others behave in a b... Pancreatic cystic neoplasms(PCNs) are a high prevalence disease. It is estimated that about 20% of the general population is affected by PCNs. Some of those lesions can progress till cancer, while others behave in a benign fashion. In particular intraductal papillary mucinousneoplasms of the pancreas can be considered as the pancreatic analogon to colonic polyps. Treatment of these precursor lesions at an early stage can potentially reduce pancreas cancer mortality and introduce a new "era" of preemptive pancreatic surgery. However, only few of those lesions have an aggressive behavior. The accuracy of preoperative diagnosis, i.e., the distinction between the various PCNs is around 60%, and the ability to predict the future outcome is also less accurate. For this reason, a significant number of patients are currently over-treated with an unnecessary, high-risk surgery. Furthermore, the majority of patients with PCN are on life-long follow-up with imaging modality, which has huge cost implications for the Health Care System for limited benefits considering that a significant proportion of PCNs are or behave like benign lesions. The current guidelines for the diagnosis and management of PCNs are more based on expert opinion than on evidence. For all those reasons, the management of cystic tumors of the pancreas remains a controversial area of pancreatology. On one hand, the detection of PCNs and the surgical treatment of pre-cancerous neoplasms can be considered a big opportunity to reduce pancreatic cancer related mortality. On the other hand, PCNs are associated with a considerable risk of under- or over- treatment of patients and incur high costs for the Health Care System. 展开更多
关键词 PANCREATIC CYSTIC neoplasms MUCINOUS CYSTIC NEOPLASIA Preemptive PANCREATIC surgery PANCREAS INTRADUCTAL papillary MUCINOUS NEOPLASIA
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Head Neck:检测细针穿刺样品中的HPV16可用于诊断HPV阳性 被引量:1
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作者 Lars Sivars MD David Landin MD +19 位作者 Linnea Haeggblom MSci Nikolaos Tertipis PhD Nathalie Gr uuml n PhD Cinzia Bersani PhD Linda Marklund MD, PhD Mehran Ghaderi PhD Anders N auml sman MD, PhD Torbj ouml rn Ramqvist PhD Cecilia Nordfors PhD Eva Munck ndash Wikland MD, PhD Edneia Tani MD, PhD Tina Dalianis MD, PhD 《现代生物医学进展》 CAS 2017年第8期I0004-I0004,共1页
口咽鳞状细胞癌HPV16是指人乳头瘤病毒16型。HPV有多种类型,其中低危型HPV感染,主要引起生殖器疣(俗称菜花)。而高危型HPV感染则引起生殖器癌和子宫颈癌上皮细胞病变,此病毒为生殖器癌和子宫颈癌前细胞病毒的开端。
关键词 HPV16 人乳头瘤病毒16型 鳞状细胞癌 阳性 诊断 样品 穿刺 检测
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Reliability and concurrent validity of postural asymmetry measurement in adolescent idiopathic scoliosis 被引量:1
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作者 Ashleigh Prowse Berit Aslaksen +3 位作者 Marie Kierkegaard James Furness Paul Gerdhem Allan Abbott 《World Journal of Orthopedics》 2017年第1期68-76,共9页
AIM To investigate the reliability and concurrent validity of the Baseline~? Body Level/Scoliosis meter for adolescent idiopathic scoliosis postural assessment in three anatomical planes.METHODS This is an observation... AIM To investigate the reliability and concurrent validity of the Baseline~? Body Level/Scoliosis meter for adolescent idiopathic scoliosis postural assessment in three anatomical planes.METHODS This is an observational reliability and concurrent validity study of adolescent referrals to the Orthopaedic department for scoliosis screening at KarolinskaUniversity Hospital, Stockholm, Sweden between MarchMay 2012. A total of 31 adolescents with idiopathic scoliosis(13.6 ± 0.6 years old) of mild-moderate curvatures(25°± 12°) were consecutively recruited. Measurement of cervical, thoracic and lumbar curvatures, pelvic and shoulder tilt, and axial thoracic rotation(ATR) were performed by two trained physiotherapists in one day. The intraclass correlation coefficient(ICC) was used to determine the inter-examiner reliability(ICC2,1) and the intra-rater reliability(ICC3,3) of the Baseline~? Body Level/Scoliosis meter. Spearman's correlation analyses were used to estimate concurrent validity between the Baseline~? Body Level/Scoliosis meter and Gold Standard Cobb angles from radiographs and the Orthopaedic Systems Inc. Scoliometer.RESULTS There was excellent reliability between examiners for thoracic kyphosis(ICC2,1 = 0.94), ATR(ICC2,1 = 0.92) and lumbar lordosis(ICC2,1 = 0.79). There was adequate reliability between examiners for cervical lordosis(ICC2,1 = 0.51), however poor reliability for pelvic and shoulder tilt. Both devices were reproducible in the measurement of ATR when repeated by one examiner(ICC3,3 0.98-1.00). The device had a good correlation with the Scoliometer(rho = 0.78). When compared with Cobb angle from radiographs, there was a moderate correlation for ATR(rho = 0.627).CONCLUSION The Baseline~? Body Level/Scoliosis meter provides reliable transverse and sagittal cervical, thoracic and lumbar measurements and valid transverse plan measurements of mild-moderate scoliosis deformity. 展开更多
关键词 RELIABILITY Validity SCOLIOSIS POSTURE ASSESSMENT
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Impact of gastroesophageal reflux control through tailored proton pump inhibition therapy or fundoplication in patients with Barrett's esophagus 被引量:3
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作者 Francisco Baldaque-Silva Michael Vieth +8 位作者 Mumen Debel Bengt Hakanson Anders Thorell Nuno Lunet Huan Song Miguel Mascarenhas-Saraiva Gisela Pereira Lars Lundell Hanns-Ulrich Marschall 《World Journal of Gastroenterology》 SCIE CAS 2017年第17期3174-3183,共10页
AIM To determine the impact of upwards titration of proton pump inhibition(PPI)on acid reflux,symptom scores and histology,compared to clinically successful fundoplication.METHODS Two cohorts of long-segment Barrett&#... AIM To determine the impact of upwards titration of proton pump inhibition(PPI)on acid reflux,symptom scores and histology,compared to clinically successful fundoplication.METHODS Two cohorts of long-segment Barrett's esophagus(BE)patients were studied.In group 1(n=24),increasing doses of PPI were administered in 8-wk intervals until acid reflux normalization.At each assessment,ambulatory 24 h p H recording,endoscopy with biopsies and symptom scoring(by a gastroesophageal reflux disease health related quality of life questionnaire,GERD/HRLQ)were performed.Group 2(n=30)consisted of patients with a previous fundoplication.RESULTS In group 1,acid reflux normalized in 23 of 24 patients,resulting in improved GERD/HRQL scores(P=0.001),which were most pronounced after the starting dose of PPI(P<0.001).PPI treatment reached the same level of GERD/HRQL scores as after a clinically successful fundoplication(P=0.5).Normalization of acid reflux in both groups was associated with reduction in papillary length,basal cell layer thickness,intercellular space dilatation,and acute and chronic inflammation of squamous epithelium.CONCLUSION This study shows that acid reflux and symptom scores co-vary throughout PPI increments in long-segment BE patients,especially after the first dose of PPI,reaching the same level as after a successful fundoplication.Minor changes were found among GERD markers at the morphological level. 展开更多
关键词 Barrett’s esophagus Acid reflux Proton pump inhibitors Health related quality of life Gastroesophageal reflux Symptom control Antireflux surgery
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Chronic pancreatitis and the heart disease:Still terra incognita? 被引量:2
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作者 Sara Nikolic Ana Dugic +4 位作者 Corinna Steiner Apostolos V Tsolakis Ida Marie Haugen Lofman J-Matthias Lohr Miroslav Vujasinovic 《World Journal of Gastroenterology》 SCIE CAS 2019年第44期6561-6570,共10页
BACKGROUND It has been suggested that chronic pancreatitis(CP)may be an independent risk factor for development of cardiovascular disease(CVD).At the same time,it seems that congestive heart failure(CHF)and CP share t... BACKGROUND It has been suggested that chronic pancreatitis(CP)may be an independent risk factor for development of cardiovascular disease(CVD).At the same time,it seems that congestive heart failure(CHF)and CP share the responsibility for the development of important clinical conditions such as sarcopenia,cachexia and malnutrition due to development of cardiac cachexia and pancreatic exocrine insufficiency(PEI),respectively.AIM To explore the evidence regarding the association of CP and heart disease,more specifically CVD and CHF.METHODS A systematic search of MEDLINE,Web of Science and Google Scholar was performed by two independent investigators to identify eligible studies where the connection between CP and CVD was investigated.The search was limited to articles in the English language.The last search was run on the 1st of May 2019.The primary outcomes were:(1)Incidence of cardiovascular event[acute coronary syndrome(ACS),chronic coronary disease,peripheral arterial lesions]in patients with established CP;and(2)Incidence of PEI in patients with CHF.RESULTS Out of 1166 studies,only 8 were eligible for this review.Studies regarding PEI and CHF showed an important incidence of PEI as well as associated malabsorption of nutritional markers(vitamin D,selenium,phosphorus,zinc,folic acid,and prealbumin)in patients with CHF.However,after substitution of pancreatic enzymes,it seems that,at least,loss of appetite was attenuated.On the other side,studies investigating cardiovascular events in patients with CP showed that,in CP cohort,there was a 2.5-fold higher incidence of ACS.In another study,patients with alcohol–induced CP with concomitant type 3c diabetes had statistically significant higher incidence of carotid atherosclerotic plaques in comparison to patients with diabetes mellitus of other etiologies.Earlier studies demonstrated a marked correlation between the clinical symptoms in CP and chronic coronary insufficiency.Also,statistically significant higher incidence of arterial lesions was found in patients with CP compared to the control group with the same risk factors for atherosclerosis(hypertension,smoking,dyslipidemia).Moreover,one recent study showed that PEI is significantly associated with the risk of cardiovascular events in patients with CP.CONCLUSION Current evidence implicates a possible association between PEI and malnutrition in patients with CHF.Chronic pancreatic tissue hypoxic injury driven by prolonged splanchnic hypoperfusion is likely to contribute to malnutrition and cachexia in patients with CHF.On the other hand,CP and PEI seem to be an independent risk factor associated with an increased risk of cardiovascular events. 展开更多
关键词 CHRONIC PANCREATITIS Pancreatic exocrine insufficiency Heart failure Cardiovascular diseases
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Spouses Who Donate Seem to Be the Winners – A Questionnaire Study of Kidney Donors Long-Term
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作者 Annette Lennerling Abdul Rashid Qureshi Ingela Fehrman-Ekholm 《Open Journal of Nephrology》 2012年第3期44-48,共5页
Background:Living donor kidney transplantations have been performed at Sahlgrenska University Hospital in Gothenburg, Sweden since 1965. In this study we wanted to explore the living kidney donor’s long-term experien... Background:Living donor kidney transplantations have been performed at Sahlgrenska University Hospital in Gothenburg, Sweden since 1965. In this study we wanted to explore the living kidney donor’s long-term experiences of the donation. Methods: Of 1110 consecutive living donors throughout 1965-2005, 823 were available for our questionnaire study. Results:Totally 692 replied to the questionnaire, 65% were females. The most common relation to the recipients was siblings (284), parents (262) and spouses (96). Time since donation was median 15 years (2 - 43). The initiative to donate came from the donors themselves in 69%. The dominating motives for donation were a wish to help, worries about the recipient not receiving a transplant and the knowledge that one could live a normal life with one kidney. The majority of the donors, felt well informed about potential risks both short-term and long-term. Depression post donation was reported by few donors, 2.3% and persisting pain by 4.3%. Comparisons between sibling donors and spouse donors show a significant difference (p Conclusions:Our study shows that the donor population is in good psychosocial health. It is a positive progress that spouses can be living kidney donors - they seem to be the winners. 展开更多
关键词 Living Kidney DONORS LONG-TERM Follow-Up Motives SIBLING SPOUSE Questionnaire
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