ABSTRACT
PURPOSE: To compare the outcomes of patients undergoing uncomplicated laparoscopic gynecologic procedures with and without drainage, and investigate the effects of drainage on postoperative shoulder pain, hospital stay and analgesic medications. PATIENTS AND METHODS: In this randomized clinical trial, 92 patients undergoing uncomplicated laparoscopic gynecologic procedures at Pars Hospital, Tehran, Iran, between April 2012 and July 2014 entered the study. Patients were randomly divided into two groups: one group received a drain at the end of operation, whereas the second group didn't receive a drain. For patients closed with drainage, Hemovac plastic passive drains were inserted without negative pressure. Severity of the patients' postoperative shoulder pain was evaluated at rest using the 10-point visual analogue scale (VAS) at 12 h, 24 h, and 48 h after surgery. RESULTS: There was no difference between the two groups regarding age, weight, height, BMI, the cause of surgery and the blood loss during the surgery. At 12 h and 24 h after surgery, the shoulder pain was statistically lower in the group with drainage (P < 0.001 for both). There was no statistically significant difference between mean VAS scores of the case and control group at 48 hours post-surgery (P = 0.806). A significantly higher postoperative demand for analgesics was observed in the control group (P < 0.001). There was no statistically significant difference between two groups regarding the length of hospital stay. CONCLUSION: Our findings suggest that drainage may be useful to prevent postoperative shoulder pain among patients undergoing gynecological laparoscopic surgeries and decrease the need for pain medication. Further studies are recommended to assess the feasibility and cost effectiveness of using this method for reducing the postoperative shoulder pain.
