Objective To explore the method, safety, and efficacy of laparoscopic intracorporeal sutured gastrojejunostomy.Methods Three children with gastric outlet obstruction underwent laparoscopic sutured gastrojejunostomy from May to September 2005. Of them, two patients with pyloric stenosis secondary to peptic ulceration received a concomitant highly selective vagotomy. A suitable segment of jejunum was lifted over the transverse colon and apposed to the gastric antrum. A continuous 4/0 suture was conducted at the seromuscular layer making the two organs together. Then the stomach and adjacent jejunum were incised with an ultrasonic scalpel. A side-to-side gastrojejunostomy was performed with full-thickness continuous suture of gastric and jejunal wall followed by anterior interrupted suture of seromuscular layers. Results All the intracorporeal sutured gastrojejunostomies were completed successfully under laparoscope. The operating time was 135, 150, and 180 min, respectively. The postoperative hospital stay was 6 d. There was no surgical complications. Postoperative follow-up at 8, 10, and 12 months, respectively, showed that all patients had normal diet and nutriture. Conclusions Laparoscopic sutured gastrojejunostomy is a safe and feasible technique, with advantages of minimal invasion, rapid recovery, and good cosmetic outcomes.

Objective To summarize the experience of laparoscopic massive splenectomy combined with selective pericardial devascularization using endoligature technique. Methods By using silk ligature and hamonic scapel or the LigaSure, 6 patients with portal hypertension and esophagogastric varices underwent laparoscopic massive splenectomy and selective pericardial devascularization. Results All the operations were completed successfully under laparoscope. The intraoperative blood loss was 80~200 ml (mean, 130 ml). None of the patients required blood transfusion or conversion to open procedure. The operation time was 150~210 min (mean, 190 min). There were no surgical complications. All the patients resumed to normal activities 5 days after operation. Follow-up observations for 3~10 months (mean, 8 months) revealed no recurrent variceal hemorrhage. Conclusions Laparoscopic massive splenectomy combined with selective pericardial devascularization using endoligature technique is a feasible, effective, safe, little hemorrhagic, and minimally invasive procedure for portal hypertension with esophagogastric varices.

Objective To explore the feasibility of laparoscopic Ladd’s procedure and its indications for intestinal malrotation accompanying midgut volvulus. Methods Laparoscopic Ladd’s procedure was performed in 15 children from July 2002 to March 2006. The procedure was performed using three trocars. Under laparoscopic visualization, the midgut volvulus was untwisted by grasping and pulling the intestine, the Ladd’s band was divided and broadened, the duodenum and the small intestine were mobilized, and finally an appendectomy was performed through an abdominal wall port. Results Laparoscopic Ladd’s procedure was completed successfully in the 15 children. Of them, 1 patient with duodenal web, 1 patient with paraduodenal hernia, and 1 patient with ectopic pancreas also had a concomitant procedure. The operative time was 45~150 min (mean, 75 min). The patients began to take food on 1~3 postoperative day. There was no surgical complications. The length of postoperative hospital stay ranged 4~6 days (mean, 5 days). Follow-up observations in 12 patients for 1~42 months (mean, 21 months) showed normal development and free of symptoms.Conclusions Laparoscopic Ladd’s procedure is a safe and effective technique. It can be performed in neonates and applicable subacute midgut volvulus, but may be unadvisable for acute volvulus with abdominal distention.

Objective To summarize our experience of laparoscopic surgery for complex choledochal cysts (type Ⅳ-A). Methods The clinical data of 65 children of choledochal cyst undergoing laparoscopic choledochal cyst resection were retrospectively reviewed from 2002 to 2009 in our institute.Among those type Ⅳ-A cyst was found in 16 patients. Hepaticojejunostomy was performed using a Roux-en-Y jejunal loop after extrahepatic cyst excision and ductoplasty. Results Laparoscopic procedures were successfully performed in 16 patients with type Ⅳ-A cysts. The stenotic segment was splited or excised and a wide hepaticojejunostomy was completed at the porta hepatis in 8 patients with a stricture extending to the level of common hepatic duct. The constrictive confluence of the bilateral hepatic duct was incised and the bi-ductal cystojejunostomy was achieved at the bifurcation in 4 cases. A septum was found at the orifice of right hepatic duct and was excised through the hilar stoma in 2 cases. A downstream stricture of the left hepatic duct was incised from the hilum to the dilated segment along the lateral wall in 2 patients, so that a long intrahepatic cystojejunostomy was completed in an oblique course. Postoperative complications developed in 2 cases including temporary bile leakage in one case and anastomotic stricture in another. The intrahepatic cysts were remarkably reduced in size during the follow-up. Conclusions With the magnified laparoscopic view, the radical resection of extrahepatic cyst and correction of the intrahepatic bile ductal stenosis can be easily performed. Laparoscopic hepaticojejunostomy and/or intrahepatic cystojejunostomy is effective and safe for children with type Ⅳ-A choledochal cysts.

Objective To study the anatomy of splenic hilum blood vessels in order to thread ligature(endoligature)instead of using stapler during the process of laparoscopic splenectomy and to evaluate the prelimnary clinical results.Methods 41 children patients underwent laparoscopic splenectomy with this technique(endoligature)for various hematologic and autoimmune disorders,including 25 cases of hereditary spherocytosis,13 idiopathic thrombocytopenia purpura,and 3 hypersplenic granulocytopenia.The anatomy of splenic pedicle,the adjacent relation between splenic vessel and pancreas were detected by color Doppler ultrasonography preoperatively.The above-mentioned parameters were compared with that found intraoperatively.Results The relationships of splenic vessel and pancreas was of type Ⅰ in 24 cases and type Ⅱ in 17.In 31 cases,the major splenic blood vessels were ramified into branches 2 cm away from the hilum and in 10 it was within 2 cm as detected by preoperative ultrasonography.These characters were largerly identified by laparoscopic laparotomy,and in all the 41 cases laparoscopic splenectomy was successfully accomplished using this endoligature instead of vasculature stapler.There was no serious complication.The mean operating time was(114 ±31)min,the estimated blood loss was(51 ±23)ml.Conclusions Ultrasonography could identify the anatomic type of splenic vessel,and its relation with the pancreas.Endoligature in the management of splenic pedicles during laparoscopic splenectomy is safe and reliable.

Objective To explore the feasibility of inter-laboratory comparison and trueness evaluation among clinical laboratories, and assess the quality of participants′measurement, by measuring the activity of alanine aminotransferase ( ALT ) in patient serum samples.Methods Method comparison study was used.Five patients serum samples, whose target values were assigned by two international candidate reference laboratory with reference method of ALT without pyridoxal phosphate, were measured by 23 routine laboratories.The bias between measurement result of each participant and the mean of reference laboratories was calculated, and then compared to allowable bias 6%.Calculate the mean value and the relative bias.Results Compared with the mean of reference laboratories, the maximum absolute value of bias among the 23 routine laboratories was 31.27%.The rate range which bias was less than the allowable bias was 26.09%-73.91 %.The bias acceptability of 8 participants were more than or equal to 80%;15 participants were less than or equal to 60%; and 3 participants were 0%.Conclusions Using patient serum samples and values assigned by reference method is an effective way to carry out inter-laboratory comparison and trueness evaluation.It can reflect the quality of measurement more truly.

ObjectiveTo explore the feasibility and outcomes of natural orifice transanal laparoscopic Soave procedure for Hirschsprung's disease and allied disorders (HAD).MethodsFrom March 2010 to December 2011,31 cases (at the age from 3 mos to 6 yrs) with Hirschsprung's disease or allied disorders (5 cases)underwent laparoscopic-assisted Soave pull-through procedure at two tertiary hospitals.We modified this technique by mobilizing the left hemicolon or whole colon via rectal muscular sleeve approach under transanal or transumbilical laparoscopic vision,then endorectal pull-through to completearectosigmoidectomyorsubtotalcolectomy. ResultsAllprocedureswerecompleted successfully.A rectosigmoidectomy was performed in 16 cases with classic HD and subtotal colectomy in 15 cases with extended HD and HAD.The average operative time was ( 117 ± 13) min.The length of the resected segment was 35 -80 cm,and the estimated blood loss was 5 -20 ml. One infant developed postoperative intestinal obstruction that required open exploration.Follow-up of one to 20 mos found no stoma stenosis or constipation recurrence. Enterocolitis developed in 1patient.ConclusionsTransanal or transumbilical laparoscopic-assisted Soave pull-through surgery is safe,effective and with a benefit of much less invasion and almost invisible scars.

OBJECTIVE A surveillance study was performed for nosocomial infections in order to investigate the change in antimicrobial resistance of Klebsiella pneumoniae,especially the strains isolated from 1999 to 2004.METHODS K-B test was used for the antibiotics susceptibility test and the results were read based on National Committee for Clinical Laboratory Standards(NCCLS) of the USA.The situation of ESBLs-producing strains of K.pneumoniae was investigated.RESULTS Totally 326 K.pneumoniae strains showed the highest susceptibility to imipenem.Ceftazidime,cefepime,and cefoperazone/sulbactam also showed excellent activity against K.pneumoniae.The prevalence of ESBLs from 326 strains was 20.2%.CONCLUSIONS It is important to study the drug resistance in nosocomial infections by K.pneumoniae.

OBJECTIVETo investigate the clinicopathological characteristics and the diagnosis of multilocular cystic renal cell carcinoma (MCRCC).

METHODSThe clinicopathological data of 19 MCRCC cases were collected and immunohistochemical staining assays were carried out. Forty-six cases of other cystic kidney lesions within the same period were collected as controls, including extensively cystic clear cell RCC (12 cases), clear cell tubulopapillary renal cell carcinoma (6 cases), tubulocystic carcinoma (2 cases), simple cortical cysts (22 cases), multilocular cystic nephroma (1 cases) and multicystic kidney (3 cases).

RESULTSThe patients included 14 males and 5 females. The ages ranged from 31 to 66 years (median age = 50 years). Most of the MCRCC cases were detected incidentally in physical examination, occasionally accompanied with hematuria, back pain or other symptoms. The follow-up period of 17 patients ranged from 6 to 170 months. All patients were alive without evidence of tumor recurrence or metastasis. Pathological findings showed that macroscopically, tumor size ranges from 1.5 to 7.0 cm in the maximum diameter, generally a entirely of various sized. The cysts contain serous, hemorrhagic or turbid fluid. Solid areas or substantially discernible mural nodules were absent; histologicallly, single layer of cuboidal and flattened epithelial tumor cells were lined in the cysts, described as clear cytoplasm, small nuclear, no nucleoli and low Fuhrman nuclear grade (I or II). Multilayer tumor cells could be observed in a few cysts, with granular cytoplasm and small intracystic papillae formed. The clear tumor cell clusters, similar as cystic lined tumor cells, were seen within pathological fibrous in almost all cases, and significant myofibroblastic proliferation was found in 14 cases. Immunohistochemically, the cysts lined epithelial cells and the clear tumor cell clusters were positive for epithelium markers, including CKpan(19/19), EMA(16/19) and CK7 (15/19); higher percentage of CAIX (17/19) and PAX8(15/19) than control groups, but lower percentage of CD10 (7/19), RCC (6/19) and AMACR(2/19); and all were negative for 34βE12, CD117 and CD68.

CONCLUSIONSMultilocular cysts, clear cells clusters of low Fuhrman grade within fibrous septa and capillary vessel proliferation under epithelium are important features of MCRCC. The united using of CAIX, CK7, CD10 and RCC is helpful for differentiating variable cystic renal tumor. MCRCC usually has an excellent prognosis, nephron sparing surgery is first recommended as a therapeutic strategy.

Adenocarcinoma, Clear Cell ; metabolism ; pathology ; Biomarkers ; Carcinoma, Renal Cell ; metabolism ; pathology ; Cysts ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Humans ; Kidney Diseases, Cystic ; metabolism ; pathology ; Kidney Neoplasms ; metabolism ; pathology ; Male ; Neoplasm Recurrence, Local ; Prognosis ; Racemases and Epimerases ; metabolism