Objective To investigate the clinical applications of plasma shock wave lithotripsy （PSWL） in the treatment of calculi via choledochoscope. Methods Between 2004 and 2009, 56 huge residual calculi (54 cases) were underwent PSWL via choledochoscope treatment in our hospital. Calculi size: diameter ≤10 mm in 9 calculi, 10 mm lt;diameter ≤15 mm in 24 calculi, 15 mm lt;diameter ≤20 mm in 17 calculi, and diameter gt; 20 mm in 6 calculi. Twenty four cases of these 54 patients had bile duct stricture. Procedure: Firstly found the calculus, and then the lithotriptor wire was introduced to the place 0.5-1.0 mm far away from the calculus surface through choledochoscope channel, and powered on, fired, destructed. Results Forty-eight cases of 54 patients were cured by PSWL with 1 times, 2 cases with 2 times, 2 cases with 3 times, and 2 cases with 4 times. Shock 4-300 times were exported per PSWL, with an average of 65 times. Crushing each stone needed shock for 4-680 times, with an average of 77 times. The calculi were ruptured in different degrees by PSWL, of which 20 cases were completely ruptured. All calculi were completely extracted. Except one case with bile duct stricture was found a small amount of bile duct bleeding during operation, all other patients had no operation complications. Conclusion PSWL technique plays an important role in lithotripsy. It is easy to deal with intrahepatic impacted calculi by PSWL, especially the pigment stones with rough surface.
【Abstract】ObjectiveTo analyze the factors influencing the prognosis of patients with bile duct carcinoma after resection. MethodsThe clinical data of 120 patients with bile duct carcinoma receiving resection in our hospital from 1980 to 2004 were collected retrospectively and clinicopathologic factors that might influence survival were analysed. A multiple factor analysis was performed through Cox proportional hazard model. ResultsThe overall 1year, 3year and 5year survival rates were 71.7%, 32.5% and 19.2% respectively. The single factor analysis showed that the major significant factors influencing survival of these patients were histological type of the lesions, lymph node metastasis, pancreatic infiltration, duodenal infiltration, resected surgical margin, perineural infiltration, peripheral vascular infiltration and depth of tumor infiltration (P＜0.05). Lymph node metastasis, pancreatic infiltration and perineural infiltration were found to be the the statistically significant factors influencing survival by multiple factor analysis through the Cox model. ConclusionThe most important prognostic factors for bile duct carcinoma after resection were lymph node metastasis, pancreatic infiltration and perineural infiltration.
Objective To investigate the prevention and treatment strategy of bile duct injury (BDI) in laparoscopic cholecystectomy (LC). MethodsLatest progress was reviewed based on recent documents and the experience on BDI in LC in our department. ResultsWith the popularity of LC, BDI in LC is increasing. The reasons include illegibility and variability of local anatomy in gallbladder trigone,injury caused by galvanothermy, as well as operator’s overconfidence. In order to prevent BDI, we should apply more blunt dissection, not to use electrocogulation if possible and to study local anatomy and its variance clearly. The common bile duct and common hepatic duct should be clearly identified. Intraoperative cholangiography, laparoscopic ultrasonography and hepatobiliary scintigraphy are selections as necessary.The treatment of BDI depends on the type of BDI and its site and local condition.The treatment includes end to end anastomosis, repairing the defect, choledochoduodenostomy, RouxenY choledochojejunostomy and so on. T tube should be maintained in place for more than half a year after operation.Conclusion The key to improve the prognosis of BDI is prevention and treatment in proper time and in correct way.
ObjectiveTo study the clinical manifestations, pathologic characteristics, imaging features, diagnosis and treatment of adenomas of extrahepatic bile duct.MethodsTwo cases of adenomas of extrahepatic bile duct in our hospital and 14 cases reported in the literatures were analyzed retrospectively.ResultsThe patients’(male 5, female 11) mean age was 58.4 years (range 21-85). The main manifestations included jaundice (n=11), abdominal pain (n=8),fever (n=6),dyspepsia (n=4),body weight loss (n=3) and claycolored stool (n=1). The locations of tumors were in the left hepatic duct (n=1), right hepatic duct (n=3), hepatic common bile duct(n=3）,the junction of cystic duct and common bile duct (n=1），distal common bile duct (n=8). The pathologic types were tubular adenomas (n=5), papillary (villous) adenomas (n=10),and mucous adenoma (n=1). All the patients underwent surgical therapy. The tumors were identified by postoperative histopathologic examination.ConclusionIt is difficult to correctly diagnose adenomas of extrahepatic bile duct before operation, because the clinical manifestations are usually atypical. The definite diagnosis should depend on histopathologic examination. It is the key to completely resect the tumors. Postoperative followup should be done on regular basis.
【Abstract】Objective To investigate the imaging features of malignant invasion of major intrahepatic ductal structures (the portal and hepatic venous vasculature, the bilie duct) by primary hepatocellular carcinoma (HCC) using multidetector-row spiral CT (MDCT). Methods We retrospectively analyzed 68 documented HCC patients with tumorous invasion of the major intrahepatic ductal structures who had undergone contrast-enhanced dual-phase MDCT scanning of the upper abdomen.The morphological changes of the portal and hepatic venous vasculature, the bile duct, and the liver parenchyma at both the hepatic arterial phase and portal venous phase images were carefully observed and recorded. Results Among the 68 patients, 47 patients had malignant invasion of the intrahepatic portal venous vessels with secondary tumor thrombus formation; 12 patients had tumor involvement of the hepatic veins and intraheptic segment of the inferior vena cava; Tumor invasion of the bile duct was seen in 9 patents. The direct CT signs of tumor invasion of intrahepatic venous vessels included: ①dilatation or enlargement of the involved vein with intraluminal softtissue “filling defect”； ②enhancement of the tumor thrombus at hepatic arterial phase, the so-called “venous arterialization” phenomenon. The indirect CT signs included: ①arterial-venous shunt, ②early and heterogeneous enhancement of the hepatic parenchyma adjacent to HCC focus, ③cavernous transformation of the portal vein. The CT signs suggesting tumor invasion of the bile duct included: ①dilation of the bile ducts near or proximal to HCC lesion, ②soft-tissue nodule or mass inside the bile ducts. Conclusion Invasion of major intrahepatic ductal structures by HCC will present corresponding CT imaging features. Contrast-enhanced MDCT dualphase scanning combined with appropriate image postprocessing techniques can better evaluate the malignant invasion of major intrahepatic ductal structures.
Objective To discuss the effective surgical treatment of intrahepatic lithiasis combined with high hepatic duct strictures. MethodsTwo hundreds and sixteen cases of intrahepatic lithiasis and high hepatic duct strictures treated in this hospital from January 1993 to October 2002 were analysed retrospectively.ResultsOne hundred and eightythree cases underwent different selective operation by selected time; 33 cases complicated with acute obstructive suppurative cholangitis underwent emergency were performed single biliary drainage, in which 30 cases were reoperated. The operative procedure were: hepatic lobectomy,high cholangiotomy and plastic repair,exposure of hepatic duct of the 2nd and the 3rd order,and plastic repair with own patch and choledochojejunostomy.Two hundreds and six cases were cured,the curative rate was 95.4%; 8 cases improved (3.7%), and 2 cases died (0.9%).Conclusion The best effective surgical treatment of intrahpatic lithiasis is hepatic lobectomy. Exposure of hepatic duct of the 2nd and the 3rd order is a satisfactory to release the hepatic duct strictures and to clear the intrahepatic lithiasis. For patients with normal extrahepatic bile duct and Oddi’s function, plastic repair of bile duct with own patch is possible to keep the normal form and function. Cholangioscopy may play an important role in the treatment of intrahepatic tract lithiasis during operation.
Objective To comment the diagnosis and treatment the bile leakage from the injuried abnormal minute biliary in our laparosicopic cholecystectomy (LC) practice. Methods Fourteen cases of minute biliary duct injury in 2 050 cases of LC were studied retrospectively. Among them, 6 cases had been found the points of leakage during operation, and the points were treated by titanium nips. In 4 cases even though the bile leakage could be seen, but the points of leakage could not found, and were treated by drainage. Four cases with peritonitis, 1 needed to be explored, and treated with suture ligature, 1 was explored by laparoscopy again, another two cases were treated with multiple hole catheters to drainage of the abdominal cavities through stab wounds. Results All 14 cases recovered. Conclusion Small bile leakage in LC is almost inevitable. It is the best that the bile leakage can be discovered during operation and to be treated. If it is discovered after operation, an open or laparoscopic exploratory laparotomy and adequate drainage would be needed. In the case of small amount of leakage, catheter drainage through stab wound is feasible.
Objective To observe the blood circulation compensation in the involved area of the liver following ligation of the third grade branches of hepatic artery and portal vein and bile duct enclosed in Glisson’s capsule. Methods Ligation of the third grade branches of these ducts was carried out in 7 pigs. Uptake of 99mTc-EHIDA in the liver was scanned with SPECT pre-and post-operatively. Liver angiography of hepatic artery and portal vein were taken at regular interval. Corrosion casts of these ducts were made with ABS following extirpation of the liver at the end of experiment. The histological specimens were examined with electronic microscope. Results Compensatory circulation occurred between involved and noninvolved part of the liver through the sinusoids in 30-60 minutes after ligation. In the 6 weeks following the procedure, there was also blood supply in the affected region of liver, and collateral developed through hepatic aterioles and capillaries. Conclusion Liver has an ability to establish compensatory blood supply on the condition of ischema in a local region of liver.
Immunohistochemical study on 39 specimens of hepatobilibary duct stricture due to stones were performed. Collagen types Ⅲ and Ⅳ were studied by quantitative analysis. The results showed that significant increase of type Ⅲ collagen was found in the stenotic bile duct wall, the portal area and liver sinusoid with fibrosis. Abnormal increasing of type Ⅳ collagen was found in the liver sinusoid of the stenotic bile duct.
Through dog models of common bile duct obstruction (BDO), the contents of liver superoxide dismutase (SOD) and malondialdehyde(MDA) were measured 2,3,4 and 5 weeks after BDO. Results indicated that the hepatic MDA content was increased 2 weeks after BDO as compared with control group (Ｐ＜0.01), the hepatic SOD content was decreased 3 weeks after BDO (Ｐ＜0.05). When bile duct obstructing, these changed were more serious. The results suggest that liver has little ability to eliminate the superoxide free radicals after BDO, whereas the lipid peroxidation products increase. It may be one of the mechanisms of liver damage after BDO.