[Retrospective analysis of the use of prophylactic drainage of the pelvis after anterior resection of the rectum].

Although the use of drains is common in clinical practice, its real role in the prophylaxis and therapy of postoperative complications is still not clear. In the literature we can find both supporters of drains, and many opponents who consider their use unnecessary and sometimes even dangerous. In fact, during new experimental and clinical studies, it was impossible to determine the usefulness of prophylactic abdominal drain, at least in the case of colo-rectal anastomosis, it has been demonstrated that use of drains limits the risks of an anastomotic leakage but, in some cases, the same drains could be the cause of some of the complications that should be avoided.