Objective To refine the technique of portal inflow occlusion and parenchymal transection for laparoscopic hepatectomy in the porcine model. Methods Ten pigs were used. The portal inflow complete or selective occlusion was carried out with portal triad clamping or dissection and division of the left portal pedicle. The sequential laparoscopic local hepatectomy, left lateral lobectomy, and left medial lobectomy were performed without portal inflow occlusion. Parenchymal transection was performed with harmonic scalpel, LigaSure, microwave dissector, bipolar electrocautery, surgical clips, and endoscopic stapler. The efficacy and safety of different techniques in laparoscopic parenchymal transection of the liver were compared. Results The ischemic liver was darken with complete or selective portal triad clamping. The ischemic demarcation line between left and right lobe was obvious with the dissection and division of the left portal pedicle. There was an applicable scope of each hepatic parenchymal transection apparatus. The optimal combination of different techniques could increase efficacy and reduce hemorrhage in laparoscopic parenchymal transection of the liver. Conclusion Technical refinements of portal inflow occlusion and parenchymal transection in porcine models could provide evidences to clinical appliance of laparoscopic anatomic major hepatectomy.
目的探讨腹腔镜下不同的入肝血流阻断方法下行规则性或不规则性局部肝切除的手术方法及其临床应用。 方法回顾性分析2007年5月至2012年7月期间在江苏省苏北人民医院完成的25例腹腔镜肝切除术患者的临床资料，其中行规则性肝切除术14例，不规则性局部肝切除术11例。术后病理学检查证实原发性肝癌9例，肝血管瘤10例，结直肠癌肝转移1例，左肝内胆管结石5例。 结果本组25例均成功完成了腹腔镜肝切除术（其中合并胆囊切除术3例，合并胆囊切除及胆总管探查术1例），无中转开腹手术者。其中行区域性入肝血流阻断联合规则性肝切除术14例，应用自制的第一肝门阻断器行全肝入肝血流阻断联合不规则的局部肝切除术11例。手术时间（149.6±19.8）min（120～195 min），术中出血量（320±73.6）mL（180～460 mL），腹腔引流管放置时间3～11 d。有1例术后第3天出现胆汁漏，予以放置自制双套管冲洗后引流量逐渐减少，术后第11天顺利拔管；其余病例未发生胆汁漏、出血、感染等并发症。术后住院时间（8.6±2.4）d（5～13 d）。9例肝脏恶性肿瘤患者术后均获随访，截至2012年7月29日，其随访时间12～48个月，平均17个月，1年无瘤生存患者有7例。 结论腹腔镜肝切除术是安全可行的，肝脏血流阻断技术是其成功的关键和保障。左半肝或左外叶病灶可考虑行区域性入肝血流阻断联合规则性肝切除术；右半肝不规则的病灶或病灶较小时，应用自制的第一肝门阻断器行全肝入肝血流阻断联合不规则的局部肝切除术，是简洁、实用的方法，可避免切除过多的肝组织。
ObjectiveTo assess the effectiveness of hemihepatic vascular occlusion (HHO) and total hepatic inflow occlusion (THO) which were applied in the liver resection. MethodsRandomized controlled trials (RCTs) comparing HHO and THO in hepatectomy were electro-nically searched from CENTRAL (Issue 1, 2013), PubMed, EMbase, CBM, CNKI and Digital Journals of Chinese Medical System. The English or Chinese version of relevant published and unpublished data and their references were also retrieved by hand. The last retrieval date was in May 2013. The data were extracted and the quality was evaluated by two reviewers independently, and then RevMan 5.2 software was used for data analysis. ResultsTen RCTs involving 788 patients were finally included. The results of meta-analysis showed that, HHO reduced the levels of aspartate transaminase (AST) (WMD=-235.84, 95%CI-411.28 to-60.40, P=0.008) and alanine aminotransferase (ALT) (WMD=-195.52, 95%CI-351.87 to-39.16, P=0.01) in 1 day postoperatively. HHO also shortened the recovery time of AST (WMD=-3.83, 95%CI-4.52 to-3.15, P < 0.000 01) and ALT (WMD=-4.29, 95%CI-5.75 to-2.84, P < 0.000 01) postoperatively, and shortened the recovery time of gastrointestinal function (WMD=-1.52, 95%CI-2.75 to-0.29, P=0.02). However, HHO was the same as THO in intraoperative haemorrhage and postoperative transfusion and hospital stay. ConclusionHHO applied in liver resection could relieve the damage of liver function, and shorten the recovery time of gastrointestinal function postoperatively. Due to the poor quality of the included studies, more high quality RCTs with longer follow-up are required to further verify the aforementioned conclusion.
ObjectiveTo compare the efficacy and safety of three different modes of blood flow blocking in hepatectomy for primary hepatocellular carcinoma.MethodsThe clinical data of 152 patients with primary hepatocellular carcinoma who underwent hepatectomy and postoperative pathology examination in our department in recent 3 years (2017–2020) were retrospectively analyzed. According to the modes of intraoperative hepatic blood flow occlusion, the patients were divided into three groups: intermittent Pringle method (IPM) group (41 cases), IPM was applied only; hemihepatic group (35 cases), hemihepatic blood flow blocking method was used only; and combined group (76 cases), combined hemihepatic blood flow blocking method and IPM. SPSS software was used to compare the differences of the three groups’ general data, intraoperative blood loss and postoperative liver function indexes. The changes of transaminase levels in the three groups were observed dynamically.ResultsBaseline data of the three groups were not statistically significant (P>0.05). There were no statistically significant differences in operative time, the number of resected liver segments, blood transfusion rate, incidence of complications, and postoperative length of stay among the three groups (all P>0.05). The intraoperative blood loss of the combined group and the IPM group were significantly less than that of the hemihepatic group (P<0.05). There was no difference in blood loss between the combined group and the IPM group (P>0.05). However, the blocking times in the combined group were significantly less than those in the IPM group (P<0.05). The transaminases in the three groups were close to the preoperative level on the fifth day after operation. Conclusions In hepatectomy of primary hepatocellular carcinoma, the three blocking modes are safe and effective. The combined application of hemihepatic blood flow blocking method and intermittent Pringle method can significantly reduce intraoperative blood loss, reduce the number of blocking, and do not aggravate the liver function injury.