The aim of this study was to assess the in vitro fertilization (IVF) treatments outcomes of women with recurrent implantation failure (RIF) after hysteroscopic metroplasty for T-shaped uterus.

This retrospective, observational study included 85 patients with RIF and T-shaped uterus who presented to In Vitro Fertilization Unit of Hüma Obstetrics and Gynecology Hospital between January, 2018 and August, 2021. The hysteroscopic metroplasty was performed before IVF procedure in 43 of patients included. Remaining 42 patents underwent IVF without hysteroscopic metroplasty were included as controls. The fertility outcome were compared between groups.

After 3 months, spontaneous pregnancy was achieved in 10.4% (5/48) of patients with T-shaped uterus underwent hysteroscopic metroplasty. In the hysteroscopy group, implantation rate, clinical pregnancy rate, biochemical pregnancy rate and the miscarriage rate were 55.8% (24/43), 41.9% (18/43), 14% (6/43) and 11.6% (5/43, respectively. The live birth rate after in vitro fertilization was 30.2% (13/43) in the hysteroscopy group and 9.5% (4/42) in the control group (p<0.05). There were no significant differences in the IVF outcomes such as the biochemical pregnancy rate and miscarriage rate between the hysteroscopy and control groups.

This study demonstrates that hysteroscopic metroplasty improves pregnancy and live birth rates for women with a history of RIF and dysmorphic uterus. Correction of T-shaped uterus with hysteroscopic metroplasty ensured favorable reproductive outcomes in RIF cases. However, conclusions must be taken carefully as this is an observational study. A prospective, randomized and controlled study is necessary to support these results.