Evaluation of 30-day complication rates following vaginal anterior compartment repair with and without graft augmentation in a propensity score matched cohort.

ABSTRACT

OBJECTIVE: To determine if graft augmentation with anterior colporrhaphy (AC+G) is associated with higher complication rates compared to native tissue repair (AC). MATERIALS AND METHODS: Retrospective cohort study using data from the ACS-NSQIP database between 2010 and 2017. CPT codes were used to identify women undergoing AC+G and AC. Propensity scores for the likelihood of undergoing AC+G were calculated and were used to match to women undergoing native tissue repair at a ratio of 12. The primary outcome was the composite complication rate. Descriptive statistics are reported as means with standard deviations for parametric data and as medians and interquartile ranges for non-parametric data. Pairwise comparisons were performed using Fisher's exact test, Wilcoxon rank-sum and Student's t test as appropriate. Multivariable logistic regression was then used to adjust for confounders to identify statistically significant factors associated with the likelihood of experiencing a complication after prolapse repair. RESULTS: 582 women met inclusion criteria for AC+G and were matched with 1164 women undergoing AC. There were no differences in preoperative characteristics between groups. There was no difference in the composite complication rate, (10.8% vs. 8.5%, p = 0.13) between groups. Dependent functional status (aOR 4.31, 95% CI 1.96-13.58) was the strongest predictor of the likelihood of a complication other significant predictors were operating time greater than 20 min (aOR 1.68, 95% CI 1.19-2.38) and ASA class greater than 2 (aOR 1.44, 95% CI 1.01-2.05). CONCLUSION: There is no increase in 30-day complication rates in women undergoing AC+G compared to a matched cohort of those undergoing AC alone.