Factors associated with complications of vaginal hysterectomy in patients with pelvic organ prolapse - a single centre's experience

Objectives: The study aimed to examine the predisposing factors that play a role in the development of complications in patients undergoing vaginal hysterectomy. Material and methods: This retrospective analysis was performed on data provided from 239 patients who underwent vaginal hysterectomy due to uterine prolapse at a single centre between January 2008 and August 2018. Complications were defined according to Clavien-Dindo classification of complications. The patients were divided into two groups: with and without complications. We built a model using multivariable logistic regression to examine the relationships between complications and five candidate predictors. Results: Intra/postoperative complications developed in 30 patients, and the complication rate was found to be 12.5%. 87.2% of the reported complications were classified as Grade ≤2 according to Clavien-Dindo system. It was found that complications were associated with factors such as intraoperative concurrent salpingo-oophorectomy [Odds ratio (OR): 1.24 (1.1.1.4)], low preoperative haemoglobin [OR: 0.96 (0.94.0.98)], uterine weight [OR: 2.69 (2.62.2.76)], and long operation time [OR: 1.04 (1.02.1.07)]. History of pelvic surgery was not found to increase complication rate [OR: 1.11 (0.96.1.27), p = 0.13]. Our multiple logistic regression model correctly classified 74% of participants within the Receiver Operating Characteristic (ROC) curve. Conclusions: Preoperative anaemia, large uterus and concomitant adnexectomy were found to be factors associated with complications during and after vaginal hysterectomy for pelvic organ prolapse.