Less pain after transvaginal cholecystectomy: single-center pooled analysis.

BACKGROUND: We previously reported outcome after transvaginal cholecystectomy (TVC) from two cohort studies and a randomized controlled trial. We now present a pooled analysis of postoperative pain scores.

DESIGN: Single-center data of postoperative pain after TVC from a level II hospital between October 2007 and June 2012.

METHODS: Female patients, above 18 years with symptomatic cholecystolithiasis, received either TVC or conventional laparoscopic cholecystectomy (CLC). Follow up 4 days. The primary outcome of the study was pain after surgery. Pain was measured via a visual rating scale. Descriptive statistics include age, body mass index (BMI), ASA grade, surgical times, number of trocars, complications and hospital stay as well as pain medication. Pain data were assessed against histologic findings.

RESULTS: The combined register included 316 patients. Of these, 7 patients were excluded from analysis due to conversion to open surgery, complications and denial of follow-up. There were 141 patients in the TVC and 168 in the CLC group. There was no difference in age, ASA grade, surgical times, complications or hospital stay. BMI was significantly different with an average BMI of 27.1 in the TVC and 28.7 in the CLC group (p = 0.027). The numbers of trocars were significantly different as expected. There was no difference in postoperative pain medication. Pain scores were significantly different on day two to four. Multivariate testing revealed no dependence between postoperative pain and histologic findings.

CONCLUSION: On smaller patient numbers, we were previously unable to demonstrate a consistently, significant difference for postoperative pain in our cohort and randomized studies. The pooled analysis suggests that there is an advantage with less postoperative pain after transvaginal compared to standard laparoscopic cholecystectomy.