Reproductive Outcome of Transcervical Uterine Incision in Unicornuate Uterus

Background： The pregnancy outcome of the unicornuate uterus is associated with an increased risk of miscarriage, cervical incompetence, and a number of obstetric complications. However, at present, there is no accepted treatment method for women with unicornuate uterus, other than expectant measures. The aim of this study was to evaluate the reproductive outcome of transcervical uterine incision （TCUI） in patients with unicornuate uterus. Methods： Thirty-three patients with unicoruuate uterus presented to our tertiary center tbr infertility or miscarriage. All 33 patients underwent TCUI and were followed up for 10-52 months. The pregnancy outcomes （first-trimester miscarriage, second-trimester miscarriage, preterm, term, intrauterine death, ongoing pregnancy, and live birth） before and after TCUI were compared by t-test. Results： Among 31 patients who attempted to conceive alter TCUI, twenty conceived including one terufination of pregnancy, one second-trimester miscarriage, one ectopic pregnancy, five preterm deliveries, 11 term delivery, and one ongoing pregnancy. There were 16 live births in total. There was significant reduction in the first-trimester miscarriage rate （t = 4.890; P 〈 0.001 ）, increase in term delivery （t = -3.288; P =0.002）, and live birth rates （t = -4.073; P 〈 0.001 ） after TCUI. Conclusion： TCUI appeared to improve the pregnancy outcome in women with unicoruuate uterus presenting with infertility or miscarriage.