Fallopian tube anatomy predicts pregnancy and pregnancy outcomes after tubal reversal surgery

Abstract

We conducted this study to determine whether fallopian tube anatomy can predict the likelihood of pregnancy and pregnancy outcomes after tubal sterilization reversal. We built a flexible, non-parametric, multivariate model via generalized additive models to assess the effects of the following tubal parameters observed during tubal reparative surgery: tubal lengths; differences in tubal segment location and diameters at the anastomosis sites; and fibrosis of the tubal muscularis. In this study, population, age, and tubal length—in that order—were the primary factors predicting the likelihood of pregnancy. For pregnancy outcomes, tubal length was the most influential predictor of birth and ectopic pregnancy, while age was the primary predictor of miscarriage. Segment location and diameters contributed slightly to the odds of miscarriage and ectopic pregnancy. Tubal muscularis fibrosis had little apparent effect. This study is the first to show that a statistical learning predictive model based on fallopian tube anatomy can predict pregnancy and pregnancy outcome probabilities after tubal reversal surgery.

Predicting pregnancy rate in women with tubal ligation after tubal anastomosis: A novel predictive nomogram

“…Female sterilization is one of the most commonly chosen contraceptive methods worldwide [1]. As divorce and remarriage have become more common in recent decades, increasing numbers of women want to have children after tubal sterilization [2]. Several pre-and per-operative factors can predict the likelihood of pregnancy after tubal anastomosis [3].…”