From the first Laparoscopic pancreaticoduodenectomy (LPD) in 1994 to the first Da Vinci robotic pancreaticoduodenectomy(RPD) in 2003, minimally invasive pancreaticoduodenectomy has achieved a breakthrough after 20-year exploration and development.It is a well-established procedure for periampullary carcinomas in some specialized centers now.Some outstanding reports including large clinical trials more than 100 cases of L/RPD in a single center and review analysis about the short and long outcomes between L/RPD and open PD for large cases have been published.For the sake of increasing popularity and acceptance of L/RPD, it is very important for researchers to update the current status of L/RPD and summarize experience and development.

Radical resection is still the only possible cure for gallbladder cancer nowadays. Rational procedures vary according to different TNM stages, locations and biological behavior of tumor. Diagnostic laparoscopic exploration offers the opportunity to identify peritoneal metastasis which may be negative on preoperative radiological findings. Besides, this can also minimize trauma to abdomen. Therefore, laparoscopic exploration is suggested in cases highly suspected of peritoneal metastasis. For incidental gallbladder cancer, radical surgery should be performed because of positive margin of cystic duct, inadequate trocar management or advanced tumor stages. Timing for reoperation is still controversial. Most scholars recommended that it should be proceed within two months after the first surgery.

Objective To evaluate the management strategy for gallbladder carcinoma found during the procedure of intended laparoscopic cholecystectomy (LC) Methods Twenty one cases of primary gallbladder carcinoma were incidently found during a period of 1996-2003, among them 17 cases of Nevin stage Ⅱ、Ⅲ and Ⅳ were divided into group A (6 cases) converted to open radical resection, and group B (11 cases) treated by LC ? 2 test and Kaplan Meier analysis were used to analyze postoperative survival rates Results (1) Two Nevin stage Ⅰ cases are still alive for 6 and 47 months at a follow up after LC; (2) For stage Ⅱ、 Ⅲ and Ⅳ patients, open surgery resulted a much longer survival ( ? 2=4 55, P =0 0328) Conclusion (1) For Nevin stage Ⅰ patients, simple LC is enough; (2) Patients of Nevin stage Ⅱ、 Ⅲ and Ⅳ should be coverted to open radical resection

Objective To discuss the technique and clinical value of laparoscopic splenectomy (LS) without using Endo-GIA combined with pericardial devascularization for the treatment of cirrhotic portal hypertension. Methods From March 2005 to October 2006, 23 patients with cirrhotic portal hypertension-induced lower esophageal varices were treated with LS combined with pericardial devascularization. In 18 of the cases, the spleen was resected by disconnection of the secondary splenic pedicle without using endo-GIA. During the operation, the splenic vessels were separated and disconnected by using absorbable clip or ligation respectively. And then the lesser omentum was cut using ultrasonic knife, and the pericardial varices devascularization was performed using the absorbable clips or ultrasonic knife. Finally, the spleen was placed into a bag, broken into small pieces, and removed from an enlarged trocar hole. Results The operation was completed successfully in the 18 cases. The mean operation time was 255 min (range,180-320 min). The mean intraoperative blood loss was 450 ml (range, 200-1600 ml). After the operation, 2 patients developed plural effusion, 1 had subphrenic abscess, and 2 had mild ascites. The subphrenic abscess was cure by ultrasonography-guided puncture. The mean hospitalization was 7.5 days (range 6 to 17 days). No mortality occurred. All the patients were followed up for an averge of 16.4 months (range 5 to 24 months). No patient died after the operation. The mean hospital stay was 7.5 days (6-17 days). The cases were followed up for 5-24 months (mean, 16.4 months). One patient developed rebleeding 20 months after the operation, and was cured by injecting sclerosing agent under a gastroscope. The other 17 cases had no hemorrhage after the operation.Conclusions It is a low-cost and superior method to disconnect the secondary splenic pedicle without using endo-GIA in LS combined with pericardial devascularization for the treatment of cirrhotic portal hypertension.

Objective To evaluate the effects of Laparoscopic cholecystectomy (LC) combined with intraoperative cholanggiography (IOC)and intraoperative endoscopic sphincterotomy (IOEST) for the treatment of cholecystocholedocolithiasis. Methods 106 cases with cholecystocholedocolithiasis diagnosed and treated by LC combined with IOC and IOEST were reviewed retrospectively. Results 60 40%(64/106)patients diagnosed cholelithiasis pre-LC were found choledocholithisis; LC combined with IOC and IOEST was successfully performed on 99 of 106 cases(93 40%),and their CBD stones were completely cleared in 98 of 99 cases(99 00%). Six cases(6 1%) were complicated with mild acute pancreatitis, 1 case(0 01%) with duodenal perforation,1 case(0 01%) with bile leakage, and 2 cases(0 02%) with stomach stasis. Conclusions LC combined with IOC and IOEST was a safe ,effective approach to diagnosis and minimally invasive treatment of cholecystocholedocholithiasis.

ObjectiveTo evaluate the feasibility,effectiveness and safety of laparoscopic splenectomy combined with pericardial devascularization for the treatment of portal hypertension in cirrhotic patients. MethodsIn this study 16 cases underwent initial totally laparoscopic splenectomy and paraesophagogastric devascularization,with 10 cases undergoing upfront open surgery as controls by one treatment group.Clinical data including operative time,intraoperative blood loss,post-operative complications and hospitalization were compared between the two groups.ResultsIn the laparoscopic group the procedure was successfully performed in 12 cases.4 cases were converted to open surgery.The operative time in laparoscopic group and the open group was respectively (315 ± 77 ) min and (291± 31) min (P =0.384).The mean intro-operative blood loss was (409 ±216) ml and (980 ±402) ml (P ＜0.01).The post-operative stay was ( 10 ± 3 ) d and ( 17 ± 8 ) d ( P ＜ 0.01).Differences in post-operative complication rate between the two groups was not statistically significant ( 17％ vs.30％,P =0.525 ).ConclusionsLaparoscopic splenectomy and pericardial devascularization is feasible,effective and safe for cirrhotic patients with portal hypertension,it has the advantage of less intra-operative blood loss,less pain and shorter hospitalization than open surgery.

Objective To explore the treatment of primary hepatic neuroendocrine tumors (PHNET).Methods The therapeutic treatments of 9 PHNET patients from January 2003 to January 2010 in 3 hospitals were retrospective analyzed and followed up.Results Diagnosis of PHNET was confirmed immunohistochemically and by excluding extrahepatic primary sites.The survival is significantly dependent on tumor resectability.One patient received only radiotherapy and one with only chemotherapy,one with radiofrequency ablation.Six patients received R0 resection,one received postoperative radiotherapy,one with TACE perioperatively and internal radiotherapy.Two patients were lost to follow up 3 patients died and 4 were alive.Intrahepatic recurrence was found in 1 patient and metastasis to bone in 2 patients.Survival time ranged from 11 days to 66 months.Conclusions PHNET is an extremely rare entity with difficulty in early diagnosis.Curative liver resection integrated with transarterial chemoembolization or radiotherapy is considered to be an effective modality.

Objective To explore the feasibility and safety of laparoscopic right hemihepatectomy (LRH) via anterior approach for larger tumors in the right lobe of the liver.Methods A retrospective study was conducted based on the clinical data of ten consecutive patients with large right liver cancer undergoing LRH through anterior approach and thirty-seven patients undergoing open hemihepatectomy by anterior approach in recent 6 years.Results Between the two groups there were no significant difference in gender,average age,the mean tumor size,preoperative liver reserve function,cut margin and intraoperative blood transfusion.The LRH group had less average intraoperative blood loss [(408 ± 158)ml vs.(520 ± 153)ml,t =2.047,P =0.046] and shorter postoperative hospital stay [(11.5 ±2.8)d vs.(16.2 ±4.6) d,t=3.091,P=0.003],longer operation time [(302 ±38)min vs.(251±55)min,t=2.732,P=0.009].There was no perioperative death and no significant difference in complications (20.0％ vs.35.1％,x2 =0.812,P =0.367) and similar median survival time (36 mon vs.29 mon,x2 =1.266,P =0.261).Conclusions LRH via anterior approach for larger tumors in the right lobe of the liver is safe and feasible.

Objective To explore the feasibility and safety of total laparoscopic radical resection for a patient of Bismuth type Ⅲ a hilar cholangiocarcinoma.Methods This patient underwent right hemihepatectomy combined caudate lobectomy,radical regional lymphadenectomy and Roux-en-Y hepaticojejunostomy under total laparoscopic techniques.Preoperatively the volume of future liver remnant estimated by CT scan was 46％,and indocyanine green retention rate at 15 min (ICG R15) was 6.0％.Results The total laparoscopic surgery was carried out successfully with operation time of 540 min and intraoperative blood loss 300 ml,without blood transfusion.The results of pathological examination showed well-differentiated adenocarcinoma of hilar bile duct with negative tumor margins and no regional lymph node metastasis(0/13).The postoperative recovery was uneventful with hospital stay time of 10 days and without any complications.Conclusion At experienced hands,total laparoscopic radical resection of Bismuth type Ⅲ a hilar cholangiocarcinoma is feasible and safe for selected patients.

Objective To summarize the experience of diagnosis and treatment for peripancreatic pseudoanemysms.Methods The clinical data of 12 patients with peripancreatic pseudoaneurysm were analyzed retrospectively.Out of 12 patients,6 presented with abdominal or alimentary tract bleeding because of pseudoaneurysm rupture.Possible etiology included chronic pancreatitis (6 cases),severe acute pancreatitis (3 cases),postpancreatoduedenectomy (3 cases),developed after transarterial chemoembolisition for hepatic carcinoma (1 case) and 1 without any definitive cause.Results Interventional radiology as first therapeutic procedure was carried out in 10 patients including 9 endovascular coil embolizations and 1 stent graft placement for pseudoaneurysm from branch of SMA,and bleeding was controlled successfully in 5 patients with pseudoaneurysm rupture.2 patients underwent laparotomy as initial therapy.Three patients underwent surgeries after a failed embolisation,another underwent laparotomy and peritoneal lavage and drainage for pancreaticoenteric anastomotic leak complicated with abdominal infection.2 SAP patients underwent ultrasound guided drainage for peripancreatic abscess.2 after PD patients died,with mortality of 16.7％ (2/12).Conclusions Peripancreatic pseudoaneurysm carried a high and an unpredictable risk of rupture that warranted prompt interventional treatment or surgery.