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This study aims to assess the impact of endometrioma on embryo quality and cycle outcome in patients who undergo assisted reproductive technology (ART) treatment due to diminished ovarian reserve (DOR). Retrospective case-control study was conducted in women ≤ 40 years of age who underwent ART treatment caused by DOR, defined according to POSEIDON criteria, at a university-based infertility clinic between January 2015 and December 2020. Three groups of patients were selected: group A included patients with an idiopathic DOR, group B included patients with endometrioma(s) who underwent ovarian cystectomy, and group C included patients with endometrioma(s) without surgical treatment. A total of 351 women with DOR were included in the final analysis. Demographic characteristics, including age and AMH, were similar between the groups. Significant differences were observed among groups on mean number of MII oocytes retrieved (1.88 ± 1.59 vs. 2.84 ± 2.89 vs. 2.78 ± 2.41, respectively; p 0.001) and mean number of embryos (1.04 ± 1.18 vs. 1.87 ± 2.01 vs. 1.66 ± 1.81, respectively; p 0.001). However, the mean number of top-quality embryos, cycle cancellation, and live birth rates were similar between the groups. Clinical pregnancy (35 (26.5%) vs. 8 (18.2%) vs. 18 (42.9%), respectively; p = 0.038) and miscarriage rates (12 (9.1%) vs. 0 vs. 8 (19.0%), respectively; p = 0.009) were higher in endometrioma group without surgery. Women with DOR appear to have similar ART cycle outcomes regardless of the etiology, in terms of live birth rates. Infertility of endometrioma patients might be related to altered endometrium rather than to decreased oocyte quality. Cystectomy for endometrioma before IVF did not seem to affect the LBR.

Aim: To compare the surgical results and reproductive Performances of patients with ESHRE/ESGE (European Society for Human Reproduction and Embryology/European Society for Gynaecologic Endoscopy) class U1a and U2b uterine anomalies after hysteroscopic correction. Methods: A retrospective cohort study was conducted at a university hospital infertility clinic. Ninety-six patients with class U2b (complete septate Uterus) and 78 patients with class U1a (T-shaped Uterus) uterine anomalies who underwent hysteroscopic correction between January 2009 and December 2015 were recruited. Results: The Operation time was significantly longer in class U2b anomalies (26.5 ± 5.3 minutes) than class U1a anomalies (22.8 ± 5.8 minutes; mean difference [95% confidence interval [Cl]: 3.6 ± 0.9 [1.8–5.3]; P < .001). Six out of all complete septate patients and 3 of T-shaped patients were reoperated due to postoperative synechia or to further enlarge the cavity. There were no differences between the groups regarding intraoperative (blood loss and uterine rupture) and postoperative (bleeding and infection) complications. After surgical correction, the term delivery rates increased from 3% to 71 % (P < .001) in class U2b and from 4% to 62.1 % (P < .001) in class U1a. The chance of live birth significantly increased after hysteroscopic correction both in class U2b (odds ratio [OR] 106.1; 95% Cl, 29.1–387.1; P < .001) and class U1a (OR 35.7; 95% Cl, 11.6–109.9; P < .001). The postoperative reproductive Performances of both anomalies were similar. Conclusion: Both types of anomalies seem to have similar severity and prognosis. Patients with both types of anomalies have excellent reproductive outcome after hysteroscopic correction.