Efficiency of various types drainage of the peritoneal cavity--an experimental study in man.

In the present study of 14 cholecystectomized patients, three different types of drain have been evaluated. Biological variations were satisfactorily eliminated using a technical system for fluid recovery and measurement, during artificial administration of fluid into the peritoneal cavity. The results showed that for drainage of the peritoneal cavity, single drain with passive flow was twice as effective as single drain with suctions. (This difference was found to be statistically significant with p less than 0.01.) Sump drain is at least as effective as single drain with passive flow and should thus be used when suction of the drain is desired.