We then compared the age and hematological parameters (WBC, CRP, Hb, BUN, Cre, Che, Alb and Tcho) between cases of early mortality and long-term survival. All readings were taken on the day before the PEG procedure. Results: Che and Tcho levels were found to

be significantly lower in cases of early mortality than in cases of long-term survival. Conclusion: PEG must be implemented only when the prognosis and estimated risk factors of the patients condition are understood. It is important to establish a good balance between the patients chance of long-term survival, and improvement in GSK1120212 solubility dmso QOL. Key Word(s): 1. PEG risk Presenting Author: BING HU Additional Authors: HONG ZE ZENG Corresponding Author: HUI LIU Affiliations: West China Hospital, Sichuan University Objective: In recent years, laparoscopic and endoscopic cooperative surgery (LECS) has become increasingly

frequently used for gastrointestinal stromal tumors (GISTs). The aim of our study is to hold a preliminary discussion to the choice between laparoscope-assisted Ku-0059436 clinical trial endoscopic technique (LAET) and endoscope-assisted laparoscopic technique (EALT). Methods: From January 2006 to December 2011, a total of 72 patients received LECS in our hospital. All the patients underwent preoperative endoscopy, endoscopic ultrasonography (EUS) and upper abdominal CT scan. For endogenous tumors with neither serosal invasion nor surrounding organs or lymph nodes metastases, LAET was chosen if preoperative evaluation showed risks of massive bleeding or perforation and difficulties in simple endoscopic resection. For tumors located at cardia or pylorus, LAET was chosen if possible. For exogenous tumors or endogenous tumors with serosal invasion, EALT was chosen. Results: 32 medchemexpress cases were treated by LAET. 40 cases were treated by EALT, of which, 10 cases were indicated for LAET initially but turned to EALT during surgeries. Among the 10 cases, perforation occurred

in 6 cases during endoscopic dissection and high chance of serosal invasion was found in the other 4 cases with tumors located near cardia or pylorus during endoscopic surgeries. All the tumors were completely resected and none of the cases were converted to open surgery. During a median follow-up of 35 months, none of the patients suffered metastasis or recurrence. Conclusion: LECS is safe and effective for gastric GISTs. For endogenous tumors without serosal invasion which can be fully removed by endoscopy, LAET should be considered. Even if an endogenous tumor can be resected simply by endoscopy, LAET is safer. For exogenous tumors or endogenous tumors with invasion beyond the stomach wall, EALT should be chosen. Key Word(s): 1. gastrointestinal stromal tumor; 2.