Survival after laparoscopic and open surgery for XXXX : a comparative, single-institution study.

@entity1 @entity694 @entity5 @entity14
BACKGROUND: Some recent studies have suggested that laparoscopic surgery for @entity14 may provide a potential survival advantage when compared with open surgery. This study aimed to compare cancer-related survivals of @entity1 who underwent laparoscopic or open resection of @entity694 in the same, high volume tertiary center. METHODS: @entity1 who had undergone elective open or laparoscopic surgery for @entity694 between January 2002 and December 2010 were analyzed. A clinical database was prospectively compiled. Survival analysis was calculated by using the Kaplan-Meier method. RESULTS: A total of 460 resections were performed. There were no significant differences between the laparoscopic (n   =   227) and the open group (n   =   233) apart from @entity5 stage: stage I @entity5 were more frequent in the laparoscopic group whereas @entity5 were more frequent in the open group. The mean number of harvested lymph nodes was significantly higher in the laparoscopic than in the open group (20.0        0.7 vs 14.2        0.5, P   <   0.01). The 5-year cancer-related survival for @entity1 undergoing laparoscopic resection was significantly higher than that following open resections (83.1% vs 68.5%, P   =   0.01). By performing a stage-to-stage comparison, we found that the improvement in survival in the laparoscopic group occurred mainly in @entity1 with @entity5 . CONCLUSIONS: Our study shows a survival advantage for @entity1 who had undergone laparoscopic surgery for stage II @entity694 . This may be correlated with a higher number of harvested lymph nodes and thus a better stage stratification of these @entity1 .
