What do systematic reviews say?

Intra‐abdominal drainage vs no drainage after pelvic lymphadenectomy

Intra‐abdominal drainage showed no clear difference in mortality compared with no drainage (low certainty).

• Intra‐abdominal drains for the prophylaxis of anastomotic leak in elective colorectal surgery 2004 · Cochrane Headline outcomes only
  RR 0.77 [0.41, 1.45]
  3 studies · 908 participants
  Low