Introduction: Stapler application for pharyngeal closure after total laryngectomy allows rapid watertight closure. We intend to report the experience of the Portuguese Oncology Institute of Lisbon, Francisco Gentil (I...Introduction: Stapler application for pharyngeal closure after total laryngectomy allows rapid watertight closure. We intend to report the experience of the Portuguese Oncology Institute of Lisbon, Francisco Gentil (IPOLFG). Material and Methods: Retrospective study of patients submitted to total laryngectomy using linear stapler device treated in IPOLFG from 2005 to 2010. Results: 108 patients were studied. The majority of patients were male, aged from 60 to 69 years old, and had smoking and alcohol habits. The average length of hospital stay was 13.1 days. Post-operative complications occurred as follows: wound infection in 6.5%, cervical hematoma in 4.6% and pharyngocutaneous fistula in 11.1% of cases. Conclusions: The mechanical suture of the pharynx in total laryngectomy is a simple and quick method. It does not increase the incidence of post-operative complications. It seems to be a very safe method, as long as its limits regarding the location and extent of tumour are respected.展开更多
Introduction: Systematic lymphadenectomy and ligation of the feeding artery is extremely important when performing radical resection in colorectal cancer. However, vascular surgery via laparoscopy requires advanced sk...Introduction: Systematic lymphadenectomy and ligation of the feeding artery is extremely important when performing radical resection in colorectal cancer. However, vascular surgery via laparoscopy requires advanced skills and techniques;thus, this procedure needs to be simplified while maintaining quality of the surgery to make it a preferred technique for the surgeons. Methods: There were 49 patients who underwent laparoscopic sigmoidectomy or anterior resection till T2 level for sigmoid colon cancer and recto-sigmoid colon cancer. We analyzed short-term and long-term outcomes between stapling ligation and clipping ligation techniques used in these surgeries. Results: The mean volume of blood loss in the stapling ligation group was 12.8 ± 12.3 ml, which was significantly lower than 41.9 ± 71.2 ml of mean volume of blood loss in the clipping ligation group. There was no significant difference in the mean duration of surgery, the mean number of harvested lymph nodes, morbidity, recurrence, and 5-year relapse free survival rates between the 2 groups. Conclusions: This study demonstrates a surgical technique using staplers for vascular treatment of tumor-feeding arteries as a new technical improvement in laparoscopic colectomy for the treatment of early-stage colon cancer. We found that the described procedure was technically safe, simple, convenient, and oncologically valid.展开更多
目的:比较远端胃癌根治术毕Ⅱ式吻合应用圆形吻合器与直线吻合器实施消化道重建的近期安全性、有效性及术后生存质量。方法:回顾性分析2013年1月至2017年7月北京大学肿瘤医院胃肠肿瘤中心四病区行根治性远端胃大部切除术的132例胃腺癌...目的:比较远端胃癌根治术毕Ⅱ式吻合应用圆形吻合器与直线吻合器实施消化道重建的近期安全性、有效性及术后生存质量。方法:回顾性分析2013年1月至2017年7月北京大学肿瘤医院胃肠肿瘤中心四病区行根治性远端胃大部切除术的132例胃腺癌患者的临床资料。根据消化道重建采用吻合器形状的不同,分为圆形吻合器组64例(48.5%)和直线吻合器组68例(51.5%)。比较两组患者术中情况、术后恢复情况、并发症发生率以及术后1年残胃情况。结果:两组手术时间、手术方式、术中出血量、淋巴结清扫数目以及阳性淋巴结数目的差异均无统计学意义(均P>0.05)。直线吻合器组患者较圆形吻合器组患者术后首次排气时间(中位数:3.0 d vs.4.0 d)、首次进食时间(中位数:7.0 d vs.8.0 d)、首次拔除腹腔引流管时间(中位数:7.0 d vs.9.0 d)及术后住院时间(中位数:8.0 d vs.10.0 d)均较短,差异具有统计学意义(均P<0.05);两组患者术后并发症发生率分别为10.9%和1.5%,差异无统计学意义(P=0.056)。术后1年胃镜检查结果显示,两组患者的食物潴留、残胃黏膜炎及胆汁反流发生率,差异均无统计学意义(P>0.05)。结论:在远端胃癌根治术毕Ⅱ式吻合中,直线吻合器组患者术后胃肠道功能恢复更快,患者住院时间更短,更具优势。展开更多
BACKGROUND Multiple linear stapler firings during double stapling technique(DST)after laparoscopic low anterior resection(LAR)are associated with an increased risk of anastomotic leakage(AL).However,it is difficult to...BACKGROUND Multiple linear stapler firings during double stapling technique(DST)after laparoscopic low anterior resection(LAR)are associated with an increased risk of anastomotic leakage(AL).However,it is difficult to predict preoperatively the need for multiple linear stapler cartridges during DST anastomosis.AIM To develop a deep learning model to predict multiple firings during DST anastomosis based on pelvic magnetic resonance imaging(MRI).METHODS We collected 9476 MR images from 328 mid-low rectal cancer patients undergoing LAR with DST anastomosis,which were randomly divided into a training set(n=260)and testing set(n=68).Binary logistic regression was adopted to create a clinical model using six factors.The sequence of fast spin-echo T2-weighted MRI of the entire pelvis was segmented and analyzed.Pure-image and clinical-image integrated deep learning models were constructed using the mask region-based convolutional neural network segmentation tool and three-dimensional convolutional networks.Sensitivity,specificity,accuracy,positive predictive value(PPV),and area under the receiver operating characteristic curve(AUC)was calculated for each model.RESULTS The prevalence of≥3 linear stapler cartridges was 17.7%(58/328).The prevalence of AL was statistically significantly higher in patients with≥3 cartridges compared to those with≤2 cartridges(25.0%vs 11.8%,P=0.018).Preoperative carcinoembryonic antigen level>5 ng/mL(OR=2.11,95%CI 1.08-4.12,P=0.028)and tumor size≥5 cm(OR=3.57,95%CI 1.61-7.89,P=0.002)were recognized as independent risk factors for use of≥3 linear stapler cartridges.Diagnostic performance was better with the integrated model(accuracy=94.1%,PPV=87.5%,and AUC=0.88)compared with the clinical model(accuracy=86.7%,PPV=38.9%,and AUC=0.72)and the image model(accuracy=91.2%,PPV=83.3%,and AUC=0.81).CONCLUSION MRI-based deep learning model can predict the use of≥3 linear stapler cartridges during DST anastomosis in laparoscopic LAR surgery.This model might help determine the best anastomosis strategy by avoiding DST when there is a high probability of the need for≥3 linear stapler cartridges.展开更多
文摘Introduction: Stapler application for pharyngeal closure after total laryngectomy allows rapid watertight closure. We intend to report the experience of the Portuguese Oncology Institute of Lisbon, Francisco Gentil (IPOLFG). Material and Methods: Retrospective study of patients submitted to total laryngectomy using linear stapler device treated in IPOLFG from 2005 to 2010. Results: 108 patients were studied. The majority of patients were male, aged from 60 to 69 years old, and had smoking and alcohol habits. The average length of hospital stay was 13.1 days. Post-operative complications occurred as follows: wound infection in 6.5%, cervical hematoma in 4.6% and pharyngocutaneous fistula in 11.1% of cases. Conclusions: The mechanical suture of the pharynx in total laryngectomy is a simple and quick method. It does not increase the incidence of post-operative complications. It seems to be a very safe method, as long as its limits regarding the location and extent of tumour are respected.
文摘Introduction: Systematic lymphadenectomy and ligation of the feeding artery is extremely important when performing radical resection in colorectal cancer. However, vascular surgery via laparoscopy requires advanced skills and techniques;thus, this procedure needs to be simplified while maintaining quality of the surgery to make it a preferred technique for the surgeons. Methods: There were 49 patients who underwent laparoscopic sigmoidectomy or anterior resection till T2 level for sigmoid colon cancer and recto-sigmoid colon cancer. We analyzed short-term and long-term outcomes between stapling ligation and clipping ligation techniques used in these surgeries. Results: The mean volume of blood loss in the stapling ligation group was 12.8 ± 12.3 ml, which was significantly lower than 41.9 ± 71.2 ml of mean volume of blood loss in the clipping ligation group. There was no significant difference in the mean duration of surgery, the mean number of harvested lymph nodes, morbidity, recurrence, and 5-year relapse free survival rates between the 2 groups. Conclusions: This study demonstrates a surgical technique using staplers for vascular treatment of tumor-feeding arteries as a new technical improvement in laparoscopic colectomy for the treatment of early-stage colon cancer. We found that the described procedure was technically safe, simple, convenient, and oncologically valid.
文摘目的:比较远端胃癌根治术毕Ⅱ式吻合应用圆形吻合器与直线吻合器实施消化道重建的近期安全性、有效性及术后生存质量。方法:回顾性分析2013年1月至2017年7月北京大学肿瘤医院胃肠肿瘤中心四病区行根治性远端胃大部切除术的132例胃腺癌患者的临床资料。根据消化道重建采用吻合器形状的不同,分为圆形吻合器组64例(48.5%)和直线吻合器组68例(51.5%)。比较两组患者术中情况、术后恢复情况、并发症发生率以及术后1年残胃情况。结果:两组手术时间、手术方式、术中出血量、淋巴结清扫数目以及阳性淋巴结数目的差异均无统计学意义(均P>0.05)。直线吻合器组患者较圆形吻合器组患者术后首次排气时间(中位数:3.0 d vs.4.0 d)、首次进食时间(中位数:7.0 d vs.8.0 d)、首次拔除腹腔引流管时间(中位数:7.0 d vs.9.0 d)及术后住院时间(中位数:8.0 d vs.10.0 d)均较短,差异具有统计学意义(均P<0.05);两组患者术后并发症发生率分别为10.9%和1.5%,差异无统计学意义(P=0.056)。术后1年胃镜检查结果显示,两组患者的食物潴留、残胃黏膜炎及胆汁反流发生率,差异均无统计学意义(P>0.05)。结论:在远端胃癌根治术毕Ⅱ式吻合中,直线吻合器组患者术后胃肠道功能恢复更快,患者住院时间更短,更具优势。
基金Shanghai Jiaotong University,No.YG2019QNB24This study was reviewed and approved by Ruijin Hospital Ethics Committee(Approval No.2019-82).
文摘BACKGROUND Multiple linear stapler firings during double stapling technique(DST)after laparoscopic low anterior resection(LAR)are associated with an increased risk of anastomotic leakage(AL).However,it is difficult to predict preoperatively the need for multiple linear stapler cartridges during DST anastomosis.AIM To develop a deep learning model to predict multiple firings during DST anastomosis based on pelvic magnetic resonance imaging(MRI).METHODS We collected 9476 MR images from 328 mid-low rectal cancer patients undergoing LAR with DST anastomosis,which were randomly divided into a training set(n=260)and testing set(n=68).Binary logistic regression was adopted to create a clinical model using six factors.The sequence of fast spin-echo T2-weighted MRI of the entire pelvis was segmented and analyzed.Pure-image and clinical-image integrated deep learning models were constructed using the mask region-based convolutional neural network segmentation tool and three-dimensional convolutional networks.Sensitivity,specificity,accuracy,positive predictive value(PPV),and area under the receiver operating characteristic curve(AUC)was calculated for each model.RESULTS The prevalence of≥3 linear stapler cartridges was 17.7%(58/328).The prevalence of AL was statistically significantly higher in patients with≥3 cartridges compared to those with≤2 cartridges(25.0%vs 11.8%,P=0.018).Preoperative carcinoembryonic antigen level>5 ng/mL(OR=2.11,95%CI 1.08-4.12,P=0.028)and tumor size≥5 cm(OR=3.57,95%CI 1.61-7.89,P=0.002)were recognized as independent risk factors for use of≥3 linear stapler cartridges.Diagnostic performance was better with the integrated model(accuracy=94.1%,PPV=87.5%,and AUC=0.88)compared with the clinical model(accuracy=86.7%,PPV=38.9%,and AUC=0.72)and the image model(accuracy=91.2%,PPV=83.3%,and AUC=0.81).CONCLUSION MRI-based deep learning model can predict the use of≥3 linear stapler cartridges during DST anastomosis in laparoscopic LAR surgery.This model might help determine the best anastomosis strategy by avoiding DST when there is a high probability of the need for≥3 linear stapler cartridges.
