Objectives To summarize the regulation of glucagon-like peptide-1（GLP-1） level by metabolism of gastrointestinal nutrients. Methods Domestic and international publications online involving regulation of GLP-1 level by metabolism of gastrointestinal nutrients in recent years were collected and reviewed. Results GLP-1 influenced insulin secretion and sensitivity， and played a leading role in recovery of glucose metabolism. Metabolism of gastrointestinal nutrients regulated GLP-1 level. Studies had shown that GLP-1 was a candidate mediator of the effects of gastric bypass （GBP） for type 2 diabetes mellitus（T2DM）. Conclusions It plays an important role in anti-T2DM effects of GBP that metabolism of gastrointestinal nutrients regulated GLP-1 level. The corresponding studies can provide a novel clinical field to treat T2DM.
Objective To investigate the short term and long term effects of laparoscopic gastric bypass on obesity related type 2 diabetes. Methods Twenty obese patients with type 2 diabetes underwent laparoscopic gastric bypass between Nov. 2009 and Feb. 2012 were identified in the computer database of West China Hospital of Sichuan University. All patients had short term follow-up of less than 1 year and among them 11 were with long term follow-up of 1 year or more. Body weight， body mass index （BMI）， blood glucose， glycosylated hemoglobin （HbA1c）， homeostasis model assessment of insulin resistance-insulin resistance （HOMA-IR）， blood pressure， and blood lipids were examined. Short term （＜1 year） and long term （≥1 year） remission rates of diabetes were calculated and factors which might have effects on the remission of diabetes were analyzed. Results Of patients with short term follow-up，body weight， fasting plasma glucose （FPG）， 2h plasma glucose （2hPG）， HbA1c， and HOMA-IR were reduced significantly. Among them， 18 of 20 patients （90.0%） reached the glucose and medication standards of complete remission and partial remission， 9 patients were defined as completely remitted （9/20， 45.0%）. Those accompanied with hypertension and （or） hyperlipemia were all improved clinically. The duration of diabetes， fasting and 2 h C peptide were found to be related to short term diabetes remission. Patients with long term follow-up of 1 year or more were observed to have significant reductions in body weight， FPG， 2hPG， HbA1c， and HOMA-IR as well. Hypertension and hyperlipidemia were all well controlled. The remission rate of diabetes reached 9/11 （81.8%）and those who were defined as completely remitted took a proportion of 6/11 （54.5%）. In these patients， those who did not reach the standards of complete remission had longer duration of diabetes and higher FPG when compared with those who did. No severe adverse event was found during the follow-up in either group. Most patients investigated were satisfied with the surgery.Conclusion Laparoscopic gastric bypass is effective and safe on short term and long term treatment of obesity related type 2 diabetes.
ObjectiveTo summarize our experience in treating highrisk carotid stenosis. MethodsWe retrospectively analyzed the clinical characteristics, treatment, and outcomes of 24 patients with highrisk carotid stenosis in our department from January 2001 with emphasis on the application of carotid stents and shunting tubes. ResultsAll patients were successfully treated, with 11 patients undergoing carotid angioplasty and stenting (CAS) and 13 patients receiving carotid endarterectomy (CEA) and shunting. No death, stroke, and ischemic neurological deficit occurred in 30 days postoperatively. ConclusionSelective application of CAS and shunting in CEA can effectively reduce complications and improve therapeutic effects in patients with highrisk carotid stenosis.
ObjectiveTo explore the application of extracorporeal venovenous bypass in orthotopic liver transplantation in pigs and to compare hemodynamic changes during operation of two different bypass ways. MethodsTwentyfive porcine orthotopic liver transplantations were performed and extracorporeal venovenous bypass was established during anhepatic phase through a catheter in portal vein (group A,n=16) or in splenic vein (group B,n=9).Hemodynamic changes were monitored continuously.ResultsFourteen recipients survived two days after operation (14/16) in group A while all survived in group B (9/9).Transient hemodynamic disturbance (MAP and CVP decreased,and HR increased) was monitored at both the beginning and the end of anhepatic stage in group A,while these parameters kept stable in group B (P＜0.05).ConclusionApplying venovenous bypass may stabilize recipients’ hemodynamics in porcines orthotopic liver transplantation,and splenic vein draining way has more advantages than portal vein.
Objective To investigate the indication and possibility of orthotopic liver transplantation for patient with alveolar hydatid disease. Methods An orthotopic liver transplantaion was successfully performed on two cases with unresectable alveolar hydatid disease using the new approach of venovenous bypass first.Results The recovery of liver graft function was good after the operation in these patients. Following up for nine and three months, the patients returned to his work without any complications. Conclusion It suggests that the case with advanced alveolar hydatid disease are an indication for liver transplantation. The new technique of venovenous bypass prior to mobilization of liver is feasible and safe.
近年国内肝移植发展迅猛，已自然形成几大中心，在手术方式上也自有特色［1］。除转流条件下的经典肝移植，还有非转流条件下的经典肝移植及背驮式肝移植。各种手术方式都有其长处及不足之处，主要取决于术者经验及习惯。一般来讲背驮式对全身循环干扰较小，但切除病肝有时较困难，特别对乙肝肝硬变患者，因肝周的炎症、纤维化，肝组织常将肝后下腔静脉包绕，分离极为困难，出血较多。近年欧美及国内一些中心主张非转流下的经典肝移植［2，3］，优点是可减少手术时间，避免一些因转流产生的并发症，但缺点是可能造成循环不稳定及肾功损害，因此要求选择合适的病例，方能安全手术。我院仍习用转流条件下的肝移植术，并在此基础上提出了先转流后游离肝脏的手术方法，取得满意效果，现介绍讨论如下。
临床肝移植始于1963年，1983年美国国家健康委员会对肝移植技术的接受和认可，为全球的肝移植发展注入了活力。目前全球有150余个移植中心，并每年以1万余例的速度开展这项手术，总的手术次数已超过8万例次，最长存活达30余年。与西方国家相比，我国肝移植工作起步晚，发展慢，并曾一度停滞了多年，这与当时的经济状况等因素有关。就早年不多的临床肝移植而言，患者多于术后短期内死亡，这与手术技术的不成熟、有效免疫抑制剂的缺乏、术后管理经验不足等有关。可喜的是，随着近20年来与国外合作交流的增加，许多中青年学者学成后回国，为我国肝移植基础与临床工作的第二次发展奠定了基础。我院肝移植开展于90年代初，近3年来发展迅速，目前已完成了102例。自20世纪90年代以来，肝脏移植在临床上已日渐成为终末期肝病的治疗方法之一，随着外科技术和围手术期管理水平的不断提高，以及各种新型免疫抑制剂的不断开发，肝移植的指征也从早期肝肿瘤扩大到良性终末期肝病，并已成功用于治疗暴发性肝功能衰竭患者。目前，肝移植的手术死亡率在5%以下，1年生存率超过80%，5年生存率在75%左右，患者术后生活质量满意。
目的 观察体外静脉静脉转流对患者血流动力学的影响。方法原位异体肝移植患者14例，术中使用离心泵，部分肝素化方法行体外静脉转流。结果 体外静脉转流时间（98.9±23.6）min，转流量（1 168±260）ml/min，转流期及新肝5分钟心排血量（CO）明显下降，但仍维持在正常水平，体循环阻力（SVR）、肺循环阻力（PVR）转流30分钟后明显增加，心率（HR）、平均动脉压（MAP）、中心静脉压（CVP）、平均肺动脉压（MPAP）、肺毛细血管楔压（PCWP）等在转流期均无明显变化，新肝早期MAP明显下降，SVR明显增加。结论 无肝期采用离心泵行体外静脉转流，有助于稳定血流动力学，但新肝早期仍有明显血压下降，主要通过适量快速泵灌注全血来纠正。
Cava-atrial shunt was performed in the Treatment of Budd-Chiari syndrome in two cases, in which one belonged to type Ⅲ， and the oother type Ⅱ,the recent results were satidgactory. A rare cause of Budd-Chiari syndrome in one case is that some drugs for occluding the spermiduct was inadveretntly injected into the spermatic vein and inferior vana cava.