大鼠肝脏胆管及门静脉铸型扫描图像分析

目的 建立大鼠去胆管肝叶和去门静脉肝叶自身对照模型,观察两肝叶之间胆管及门静脉是否存在交通支及其大体形态变化.方法 SD大鼠40只,分为S、BL、PL和BPL共4组,分别应用氰基丙烯酸酯对肝右叶胆管进行栓塞结扎制备去胆管肝叶;对肝方叶行门静脉结扎制备去门静脉肝叶.通过测量肝重/体重和方叶重/右叶重及对各组大鼠胆管和门静脉分别灌注硫酸钡明胶混悬液制备铸型标本,并运用Micro-CT扫描来观察两叶肝脏胆道和门静脉形态变化.结果 (1)大鼠手术后在本观察期内存活率达到100%,无黄疸表现.肝叶大体形态观察和两叶肝重量比指标显示,S、BL、PL组肝重/体重为3.5%,与BPL组比较差异有统计学意义(P<0.01).S、BL组方叶/右叶重量比为60%～70%,PL及BPL组则为20%左右,提示去胆管和去门脉肝叶之间的重量比差异有统计学意义(P<0.05或P<0.01).(2)Micro-CT铸型扫描可以直观地显示胆管和门静脉形态变化,未发现两个肝叶之间存在交通支或侧枝循环.结论 去胆管肝叶无明显萎缩.胆管及门静脉灌注造影显示两叶胆管及门静脉无明显的侧枝循环.Micro-CT扫描可以直观地显示胆管及门静脉形态变化,硫酸钡明胶灌注铸型为小动物肝脏Glissons系统形态学研究提供了一种借鉴方法.

Abstract：

Objective To establish a rat self-control model with the bile duct deprived (BDD) and the portal vein deprived (PVD) hepatic lobe and to observe whether there were communicated branches between the two lobes.Methods Forty SD rats were divided into four groups: group S with sham operation as an undisposed blank control, group BL with the right lobe bile duct embolized and ligated, group PL with the quadrate lobe portal vein ligated, and group BPL with the right lobe bile duct embolized and ligated and meanwhile the quadrate lobe portal vein ligated. The right hepatic bile ducts were embolized with cyanoacrylate and then ligated to prepare the BDD lobe. The portal vein of quadrate hepatic lobes was ligated as the PVD lobes. The observation period was 1 month after the bile duct or portal vein ligated. The values of liver weight/body weight and the quadrate lobe weight/the right lobe weight were recorded. The bile duct and portal vein casting specimens of these four groups were prepared by a perfusion with barium and gelatin solution. Three-dimensional micro-computerized tomography (Micro-CT) data sets were acquired to observe the morphological changes of bile duct and portal vein of the livers and whether there were communicated branches between the right and quadrate lobes in order to estimate the feasibility of the model.Results (1) The survival rate of rats after operation was 100%. No jaundice was observed. The ratio of liver/body weight in groups S, BL and PL was about 3.5%, significantly lower than that in group BPL (P<0.01). The ratio of quadrate/right lobe weight in groups S and BL was about 60%-70%, while that was about 20% in groups PL and BPL (P<0.05, or P<0.01); (2) Micro-CT images exhibited directly the morphological changes of the hepatic bile duct and portal vein, and no communicated branches or side circulation situation were observed between the two lobes.Conclusion No collateral branches were found between the two lobes and the model was successfully established. The barium casting liver specimen scanned by micro-CT provided a useful method for the morphological observation of rat liver Glissons system.     

一种大鼠选择性门静脉分支结扎模型的建立

目的 在显微镜辅助下建立一种大鼠选择性门静脉分支结扎(sPVL)模型,观察其对肝再生的影响.方法 模型组选择性结扎70％的门静脉;假手术组仅游离门静脉但不结扎.评估各组肝功能、肝脏指数、肝再生率和肝脏组织病理学改变.结果 30只大鼠成功实施sPVL手术.术后14 d,模型组未结扎叶肝脏指数达(90.36 ±0.21)％,与假手术组(34.39±2.50)％比较,差异有统计学意义(P＜0.01).结扎叶肝脏逐渐萎缩.谷丙转氨酶(ALT)水平于术后48 h达到峰值[(454.33±116.00) U/L],术后第7天回落至术前水平[(59.67 ±9.00) U/L].总胆红素(TBIL)和血清白蛋白水平无明显变化.与假手术组比较,组织病理学染色示未结扎叶肝细胞体积增大,肝血窦明显增宽,中央静脉周围及汇管区均无明显胶原沉积;而结扎叶肝细胞明显萎缩,后期出现广泛的胶原沉积.结论 成功建立有效促进残肝再生的鼠sPVL模型,且该方法稳定可靠、重复性好.     

选择性胆管栓塞所致肝脏功能及组织学变化的实验研究

目的通过动物实验研究,观察选择性胆管栓塞所致肝脏功能和组织学变化,探讨其治疗胆管细胞癌的可能性。方法应用无水酒精或α-氰基丙烯酸正辛酯(DTH胶)对新西兰兔行选择性胆管栓塞,与正常新西兰兔比较,进行大体、组织学观察,并检测肝脏功能变化。结果栓塞术后30 d被栓塞肝叶萎缩,体积减小,质地变硬,光镜下肝小叶结构消失,肝细胞消亡,汇管区结缔组织增生明显。未栓塞肝叶代偿性肥大,肝细胞体积及密度增大,门静脉扩张充血。肝功能呈一过性改变,表现为术后3 d转氨酶(GPT、GOT)明显升高,术后14 d降至正常基线水平。DTH胶对肝功能(GPT、GOT)的损害要轻于无水酒精组(F=9.593,P=0.015;F=16.401,P=0.004)。结论选择性胆管栓塞可使被栓塞肝叶明显萎缩、纤维化,而未栓塞肝叶代偿性增生肥大,DTH胶栓塞效果较无水酒精相对安全有效,可能作为胆管细胞癌治疗的一种辅助措施。     

肝前性门静脉高压大鼠门静脉血流对肝脏影响的实验观察

目的 研究肝前性门静脉高压大鼠门静脉血流改变对肝脏功能的影响.方法 雄性Wistar大鼠66只,完全随机化分为5组:门静脉部分缝扎组(A组,n=20);部分门静脉、肝动脉顺序缝扎组(B组,n=20);肝动脉缝扎组(C组,n=10);假手术组(D组,n=10);部分门静脉、肝动脉同时缝扎组(E组,n=6).观察术后12周各组病死率和肝功能变化情况.免疫组化方法检测肝脏汇管区小胆管周围微血管密度、肝脏胆管增生细胞核抗原;透射电镜观察肝脏超微结构的改变.结果 术后12周肝功能检测显示,A、B、C、D组谷草转氨酶分别是(132.69±21.03)U/L、(154.40±28.73)U/L、(125.84±26.60)U/L、(134.02±18.42)U/L,各组之间差异无统计学意义(P＞0.05);谷丙转氨酶各组分别是(39.33±8.62)U/L、(44.84±9.47)U/L、(40.41±8.04)U/L、(38.47±7.29)U/L,各组之间差异无统计学意义(P＞0.05).与C、D组相比,A组和B组病死率分别为20％和25％,病死率增加,肝脏小胆管周围血管密度增加(P＜0.05);B组肝脏胆管增生细胞核抗原表达增强,平均吸光度值为0.345±0.027,较A、C、D组(平均吸光度值分别为0.264±0.015、0.258±0.022和0.249±0.021)差异均有统计学意义(P＜0.01);超微结构观察A组和B组,细胞质内可见较多脂肪颗粒聚集,线粒体可出现空泡样变.结论 肝前性门静脉高压大鼠门静脉侧支血流对肝脏生理功能的维持具有较为重要的作用;肝前性门静脉高压可使肝内胆管上皮细胞和胆管周围微血管出现轻度增生,肝细胞内发生脂肪颗粒聚集;如果肝动脉血供丧失,则这些变化会更加显著.     

去胆管肝叶转归的研究

目的 研究犬左、右肝管分别结扎６个月后肝脏是与生化改变,探讨去胆管肝叶有无保留价值。方法 分别结扎犬左肝管６只（Ⅰ组）、右肝管５只（Ⅱ组）,饲养６个月后检查肝功能、切取结扎侧、非结扎侧肝组织行病理学检查及酶染色。结果 Ⅰ、Ⅱ组结扎前、后除白蛋白、总胆红素相比差异有显著性（Ｐ〈０．０５）外,其他指标差异均无显著性（Ｐ〉０．０５）。结扎侧汇管区纤维组织增生和炎性细胞浸润明显,且明显扩张,其直径是对侧的     

门静脉阻断对原发性肝癌荷瘤大鼠不同肝叶肿瘤生长的影响

目的 观察在门静脉阻断术(PVL)后荷瘤大鼠不同肝叶肿瘤的生长.方法 将27只雄性大鼠平均分为3组.A组为无荷瘤大鼠,B、C组为荷瘤大鼠.A组(对照组)和C组(实验组)大鼠行PVL术,B组为假手术组.分别于术后不同时段,应用正电子发射计算机断层显像(PET-CT)测算不同肝叶上肿瘤生长的体积变化及肿瘤生长率.结果 C组门静脉结扎肝叶上的肿瘤体积增生明显高于B组[ (54.90±32.17) mm3比(28.41±11.04) mm3,P＜0.05],而无门静脉结扎肝叶上的肿瘤体积增生及肿瘤生长率差异无统计学意义(P＞0.05).结论 PVL术可加速大鼠门静脉结扎肝叶上肿瘤的生长,但不会促使无门静脉结扎肝叶上肿瘤生长的加速.     

Glisson鞘内管道三级分支结扎后相应肝组织保留价值的研究

本文研究了实验猪肝脏Glisson鞘内管道三级分支结扎后相应区域肝组织的形态、病理组织学以及肝细胞功能的变化。发现在相应管道结扎后对实验猪总的肝功能影响不大,受累区域未发生严重感染及胆瘘等。相应肝组织逐渐萎缩,肝细胞功能逐渐减退,最后相应区域肝组织纤维化,但都呈一种渐进发展的过程,因而相应肝组织有一定的保留价值。     

门静脉分支结扎后门静脉压力变化与肝再生的关系

目的 探讨90%门静脉分支结扎后大鼠门静脉压力变化与肝再生的关系.方法 45只雄性SD大鼠行90%门静脉分支结扎术,其中5只进行假手术作为对照.观察不同时相点门静脉压力和非结扎侧肝脏质量变化,光学显微镜下观察非结扎侧肝细胞的形态学变化,免疫组织化学方法检测未结扎侧肝细胞的增殖细胞核抗原(PCNA),TUNEL法检测未结扎侧肝细胞的凋亡情况,并进行定最分析.采用Pearson相关分析和t检验分析数据.结果 95%(38/40)的大鼠存活.结扎侧肝叶进行性萎缩,非结扎侧肝叶占全肝质量的比例随时问推移而增加,12 h内增加较缓慢,仅为10.75%;而1～5 d则增加速度明显加快,达到27.57%;7～28 d达到平台期,缓慢增加到32.37%.术前门静脉压力为(9.1±1.8)cm H_2O(1 cm H_2O=0.098 kPa);结扎后立即升高,12 h达到高峰(15.8±2.7)cm H_2O,与术前比较差异有统计学意义(t=6.847,P<0.05);1～28 d由(13.6±2.3)cm H_2O逐渐下降为(9.3±2.0)cm H_2O.术前大鼠PCNA阳性细胞计数为7%±3%,术后12 h至3 d由14%±5%上升至21%±6%,第5天达到高峰为26%±7%,与术前比较差异有统计学意义(t=9.129,P<0.05),随后逐渐恢复正常.TUNEL法检测结果显示,术前大鼠肝脏和术后各时相点大鼠未结扎侧肝脏仅见极少量凋亡细胞.大鼠门静脉压力与非结扎侧肝叶肝细胞PCNA的表达在术后1、3、5 d呈正相关(r=0.913,0.896,0.908,P<0.05),在术后14 d时相点呈负相关(r=-0.926,P<0.05).结论 大鼠90%门静脉分支结扎术后,引起未结扎侧肝细胞的活跃再生,再生后的肝脏可恢复原来的质量;肝再生以肝细胞增殖加速为主,而非肝细胞凋亡减少;门静脉压力变化在肝再生过程中可能发挥重要作用.     

70%门静脉分支高位结扎大鼠肝组织细胞凋亡及相关基因Bax和Bcl-2 mRNA的表达

目的 观察70%门静脉分支高位结扎后大鼠肝组织细胞凋亡及相关基因Bax,Bcl-2的表达,以探讨肝细胞凋亡的发生机制.方法 Wistar大鼠60只,随机分成假手术对照组(n=30)和门静脉结扎组(n=30).观察术后第12小时和第1,2,3,7,14天的肝脏大体结构和血浆转氨酶的变化.用细胞凋亡原位末端标记技术(TUNEL)对结扎侧肝细胞凋亡进行定量分析,光学显微镜下观察未结扎侧肝细胞的增殖情况,采用逆转录-多聚酶链反应(RT-PCR)检测肝脏组织中Bax和Bcl-2 mRNA的表达.结果 70%门静脉分支高位结扎后,结扎侧肝叶以细胞凋亡的方式呈进行性萎缩变小,对侧则以有丝分裂的方式成比例地代偿性增生.全肝的总质量维持恒定,肝脏功能基本保持正常.结扎侧肝组织中以Bax mRNA的升高为主,而未结扎侧肝组织中以Bcl-2 mRNA的升高为主.结论 近70%门静脉分支高位结扎后,结扎侧肝脏由于Bax mRNA表达升高引起肝细胞大量凋亡,未结扎侧由于Bcl-2 mRNA表达升高引起肝细胞增殖,在维持全肝的质量和功能中具有重要意义.     

左肝外叶胆管结石合并胆总管结石30例的临床治疗体会

目的探讨保留胆囊功能的左肝外叶胆管结石的治疗方法。方法对2008年7月至2012年7月间,本院收治的30例有左肝外叶胆管结石但无胆囊结石的患者,行左肝外叶切除,再经左肝外叶胆管残端取胆总管结石,术中保留胆囊。结果 30例无胆囊结石的左肝外叶胆管结石患者术后未出现胆囊炎,无胆总管结石残留,均康复出院。结论行左肝外叶切除术治疗无胆囊结石的左肝外叶胆管结石是安全有效的,值得临床推广。     

Compensatory hepatic hypertrophy after occlusion of branches of the portal vein or bile duct

The effect on the liver of portal or bile duct branch occlusion was examined in rabbits by measuring hepatic tissue blood flow and cellular kinetics, using the bromodeoxyuridine labeling index. The portal branch bile duct branch, or both, to the main lobe and caudate lobe (80.4% of total liver weight) were ligated or embolized just above the right posterior lobe (19.6%), resulting in compensatory hypertrophy of the right posterior lobe and atrophy of the main and caudate lobes. Twenty-four days after ligation, the degree of compensatory hypertrophy in the different groups was comparable. There were significant differences in the pattern of the development of hypertrophy. Ligation of both a portal branch and the corresponding bile duct resulted in more rapid hypertrophy and atrophy than ligation of a portal branch alone. Ligation of a branch of the bile duct resulted in slow development of hypertrophy and atrophy. In the embolization group, the increase in the right posterior lobe stopped 6 days after the operation, resulting that it was about 40% thereafter. Histological findings showed that the fibrin clot had contracted and was floating in the portal branch to the main lobe. These results suggested that portal blood flow to the main lobe had resumed and was gradually increasing as the clot contracted. Portal branch ligation gave results superior to those with portal branch embolization with regard to application to preoperative procedure in extended hepatobiliary surgery.     

Preoperative portal embolization to increase safety of major hepatectomy for hilar bile duct carcinoma: a preliminary report

Extensive liver resection for hilar bile duct carcinoma with jaundice has high morbidity and mortality rates because of postoperative liver failure. To minimize postoperative liver dysfunction, a portal venous branch was embolized before surgery to induce atrophy of the lobe to be resected and hypertrophy of the contralateral lobe in 14 patients with hilar bile duct carcinoma. Bile was drained before surgery in 11 patients with jaundice. Portal embolization did not produce major side effects, and moderate increases of serum transaminase activity or bilirubin returned to baseline values within 1 week. Hepatectomy with bile duct resection and lymphadenectomy was performed 6 to 41 days after embolization, at which time the embolized lobe was atrophied in 12 of the patients. Extended right or left lobectomy or left trisegmentectomy (10, 3, and 1 cases, respectively) with biliointestinal reconstruction was performed. One patient with jaundice and suppurative cholangitis died 30 days after hepatectomy. Another patient died 3 months after surgery of aggravated hepatitis. After surgery, no bile leakage occurred and hyperbilirubinemia was usually moderate and reversible.     

Results of surgical resection for patients with hilar bile duct cancer: application of extended hepatectomy after biliary drainage and hemihepatic portal vein embolization

OBJECTIVE: To evaluate the feasibility of an aggressive surgical approach incorporating major hepatic resection after biliary drainage and preoperative portal vein embolization for patients with hilar bile duct cancer. SUMMARY BACKGROUND DATA: Although many surgeons have emphasized the importance of major hepatectomy in terms of curative resection for patients with hilar bile duct cancer, this procedure results in a high incidence of postoperative morbidity and mortality in patients with cholestasis-induced impaired liver function. METHODS: A retrospective cohort study was conducted in 140 patients with hilar bile duct cancer treated from 1990 through 2001. Resectional surgery was performed in 79 patients, 69 of whom underwent major hepatic resection. Thirteen patients underwent concomitant pancreaticoduodenectomy. Preoperative biliary drainage was carried out in all 65 patients who had obstructive jaundice. Portal vein embolization was conducted in 41 of 51 patients undergoing extended right hepatectomy. Short- and long-term outcomes were evaluated. RESULTS: No patient experienced postoperative liver failure (maximum total bilirubin level, 5.4 mg/dL). The in-hospital mortality rate was 1.3% (1 in 79, resulting from cerebral infarction). A histologically negative resection margin was obtained more frequently when the scheduled extended hepatic resection was conducted (75% vs 44%, P = 0.0178). The estimated 5-year survival rate was 40% when histologically negative resection margins were obtained, but only 6% if the margins were positive. Multivariate analysis identified the resection margin and nodal status as independent factors predictive of survival. CONCLUSIONS: Extensive resection, mainly extended right hemihepatectomy, after biliary drainage and preoperative portal vein embolization, when necessary, for patients with hilar bile duct cancer can be performed safely and is more likely to result in histologically negative margins than other resection methods.     

Guidelines for the management of biliary tract and ampullary carcinomas: surgical treatment

The only curative treatment in biliary tract cancer is surgical treatment. Therefore, the suitability of curative resection should be investigated in the first place. In the presence of metastasis to the liver, lung, peritoneum, or distant lymph nodes, curative resection is not suitable. No definite consensus has been reached on local extension factors and curability. Measures of hepatic functional reserve in the jaundiced liver include future liver remnant volume and the indocyanine green (ICG) clearance test. Preoperative portal vein embolization may be considered in patients in whom right hepatectomy or more, or hepatectomy with a resection rate exceeding 50%–60% is planned. Postoperative complications and surgery-related mortality may be reduced with the use of portal vein embolization. Although hepatectomy and/or pancreaticoduodenectomy are preferable for the curative resection of bile duct cancer, extrahepatic bile duct resection alone is also considered in patients for whom it is judged that curative resection would be achieved after a strict diagnosis of its local extension. Also, combined caudate lobe resection is recommended for hilar cholangiocarcinoma. Because the prognosis of patients treated with combined portal vein resection is significantly better than that of unresected patients, combined portal vein resection may be carried out. Prognostic factors after resection for bile duct cancer include positive surgical margins, especially in the ductal stump; lymph node metastasis; perineural invasion; and combined vascular resection due to portal vein and/or hepatic artery invasion. For patients with suspected gallbladder cancer, laparoscopic cholecystectomy is not recommended, and open cholecystectomy should be performed as a rule. When gallbladder cancer invading the subserosal layer or deeper has been detected after simple cholecystectomy, additional resection should be considered. Prognostic factors after resection for gallbladder cancer include the depth of mural invasion; lymph node metastasis; extramural extension, especially into the hepatoduodenal ligament; perineural invasion; and the degree of curability. Pancreaticoduodenectomy is indicated for ampullary carcinoma, and limited operation is also indicated for carcinoma in adenoma. The prognostic factors after resection for ampullary carcinoma include lymph node metastasis, pancreatic invasion, and perineural invasion.     

Usefulness of measuring hepatic functional volume using Technetium-99m galactosyl serum albumin scintigraphy in bile duct carcinoma: report of two cases

We report the usefulness of measuring functional liver volume in two patients undergoing hepatectomy. Case 1 involved a 47-year-old man with hepatitis B virus infection. The indocyanine green test retention rate at 15 min (ICGR15) was 14%. Liver uptake ratio (LHL15) by technetium-99 m galactosyl human serum albumin (^99mTc-GSA) liver scintigraphy was 0.91. The patient displayed hilar bile duct carcinoma necessitating right hepatectomy. After preoperative portal vein embolization (PVE), future remnant liver volume became 54% and functional volume by ^99mTc-GSA became 79%. Although the permitted resected liver volume was lower than the liver volume, scheduled hepatectomy was performed following the results of functional liver volume. Case 2 involved a 75-year-old man with diabetes. ICGR15 was 27.4% and LHL15 was 0.87. The patient displayed bile duct carcinoma located in the upper bile duct with biliary obstruction in the right lateral sector. The right hepatectomy was scheduled. After PVE, future remnant volume became 68% and functional volume became 88%. Although ICGR15 was worse as 31%, planned hepatectomy was performed due to the results of functional volume. In the liver with biliary obstruction or portal embolization, functional liver volume is decreased more than morphological volume. Measurement of functional volume provides useful information for deciding operative indication.     

Preoperative Portal Embolization in Patients with Hepatocellular Carcinoma

The factors that contribute to the effect of portal vein embolization before hepatectomy for hepatocellular carcinoma are unclear. Sixty-six patients with hepatocellular carcinoma were enrolled in the study. Changes in liver function, portal vein pressure, and liver volume after embolization were examined. A multiple linear regression analysis was performed to identify factors that independently contributed to the effects of portal vein embolization. The acceptable volume ratio of the remnant liver was calculated from liver function and compared with the volume ratio of the non-embolized liver. No postoperative deaths were observed after portal vein embolization or hepatectomy. Serum total bilirubin and prothrombin time did not change significantly after portal vein embolization. In patients who underwent arterial embolization before portal vein embolization, aminotransferase levels increased significantly. The only factor that could significantly predict the atrophy effects of portal vein embolization was previous arterial embolization. The volume ratio of the non-embolized liver was smaller than the acceptable volume ratio of the remnant liver in 18 of 40 patients and increased over the acceptable volume ratio in all cases after portal vein embolization. Portal vein embolization induced atrophy or hypertrophy of the embolized or non-embolized liver sufficiently, even when the liver was dysfunctional or cirrhotic. The atrophy effects were significant, especially when arterial embolization had been performed before portal vein embolization.     

The feasibility of in vivo resection of the left lobe of the liver and its use for transplantation

The anatomical possibility of resecting the left lobe of the liver (segments II and III) in living subjects and using it for transplantation was evaluated. A group of 60 cadaveric livers were dissected at autopsy. The vascular and biliary elements of the left lobe were isolated and the lobe was resected and evaluated for possible grafting. The left lobe was 12-28% (mean 19.4%) of the liver mass. An extrahepatic segment of the left hepatic vein was isolated in 95% of specimens. Arterial blood supply to the left lobe consisted of a single artery (92%) or two arteries (8%). A single portal vein segment to the left lobe (type I) was found in 35% livers. Portal vein branches originated from a common orifice (type II, 35%) or separately (type III, 30%) from the left portal vein, and in these instances, preparation of a portal segment necessitated partial section of the left portal vein wall. Biliary drainage was extrahepatic in 56 livers and consisted of a single duct (type I, 78%), or two ducts (type II, 15%). The resected left lobe was evaluated as satisfactory (single hepatic vein and artery, types I or II portal vein, type I bile duct) in 48% of cases, while a less-satisfactory lobe (type III portal vein or type II bile duct) was obtained in 33%. It was found anatomically difficult or impossible to resect the left lobe for possible transplantation in 11 (19%) liver specimens.     

带蒂脐静脉瓣修复肝门部胆管狭窄

目的　探讨带蒂脐静脉瓣修复肝门部胆管狭窄的效果。方法　对１９８７ 年１ 月至１９９６年１２ 月,３８ 例用带蒂脐静脉瓣修复肝门部胆管狭窄患者进行总结。采用带蒂脐静脉瓣移植修复肝门部胆管狭窄２３ 例,肝左外叶切除并脐静脉瓣修复右肝管开口狭窄１１ 例,肝方叶切除或肝中裂劈开并脐静脉瓣修复高位胆管狭窄４ 例。结果　随访率（３４／３８）为８９ ％ ,随访时间超过２．５ 年的有３２ 例,２例因胆总管结石、狭窄复发再次手术。疗效优良率为９３％ 。结论　本术式简单易行,疗效满意,是治疗肝门部胆管狭窄的有效方法。