RESUMO
Objective To evaluate an indwelling anal tube in the prevention of anastomotic leakage after laparoscopic Dixon procedure for rectal cancer.Methods From June 2015 to June 2017,71 rectal cancer patients undergoing laparoscopic Dixon procedure with the anastomotic margin to dentate line ＜ 4 cm were randomly divided into the study group (39 cases) to have an anal tube dranage and the control group (32 cases) without tube dranage.Within a week after surgery,the postoperative pressure changes in the rectum,defecation,anastomotic leakeage were monitored and observed.Results In study group postoperative intra rectal pressure at 2 h,and on days 1,2,3,4,5,6,7 were (13 ± 3),(8 ± 3),(11 ±2),(14 ±4),(16 ±3),(19 ±2),(21 ±3),(22±3) cmH2O,while in control group were (17 ±2),(11 ±3),(15 ±3),(17 ±3),(20 ±2),(22±3),(25 ±4),(26 ±2)cmH2O (all P＜ 0.05).In the study group the postoperative discharge and defecation were 1-2 days earlier than the control group.No anastomotic leakage occurred in study group,while in control group,there were 4 cases with the incidence rate of 12％,and the difference between the two groups was statistically significant (all P ＜ 0.05).Conclusion In Dixon procedure,routinely placed anal tube effectively prevent anastomotic leakage from occurring.
