Reproductive and obstetric outcomes following operative hysteroscopy for treatment of retained products of conception.

Background Retained products of conception following delivery or early pregnancy failure are often treated by operative hysteroscopy. We aimed to evaluate reproductive and obstetric outcomes following operative hysteroscopy for treatment of retained products of conception. We also investigated the effect of time interval between operative hysteroscopy and pregnancy on these outcomes. Methods A retrospective cohort study conducted at the gynecology department of a tertiary teaching hospital between January 2012 and December 2016. Included were women who underwent operative hysteroscopy for treatment of retained products of conception and became pregnant following the procedure. Reproductive and obstetric data were retrieved from electronic medical records and by telephone questionnaire. The effect of time interval between operative hysteroscopy and pregnancy on reproductive outcomes was also evaluated by comparing women who conceived 6 months or less and women who conceived more than 6 months following surgery. Results Seventy-nine women who underwent operative hysteroscopy for treatment of retained products of conception and who conceived later were included. Mean time from women's attempt to conceive to conception was 4.6 (SD=6.4) months. Conception rate was 84.8% at 6 months and reached 92.4% at 12 months postsurgery. Miscarriage rate for the consecutive pregnancy following hysteroscopy was 15.2% and delivery rate was 84.8%. Two cases of obstetric complications including one case of retained placenta and one case of post-partum hemorrhage were noted. Time interval between operative hysteroscopy and pregnancy did not affect reproductive or obstetric outcomes. Conclusions Women treated by operative hysteroscopy for retained products of conception have no negative reproductive and obstetric outcomes. Time interval between the procedure and pregnancy has no effect on these outcomes.