Effect of Body Mass Index (BMI) on In Vitro Fertilization (IVF) Outcomes in Women with Polycystic Ovary Syndrome (PCOS)
DOI:
https://doi.org/10.22317/jcms.v10i3.1563Keywords:
Body mass index (BMI), polycystic ovary syndrome (PCOS), in vitro fertilization (IVF), pregnancyAbstract
Objective: Obesity is known to have negative impaction on reproductive health and ovarian functions. It may alter endocrine axis and quality of oocytes, and indirectly effect the success of in vitro fertilization (IVF).
Methods: Medical records of patients with polycystic ovary syndrome (PCOS) who were applied for IVF between 2018 and 2024 were reviewed. Demographics, indications for reproductive treatment, IVF outcome parameters and the factors contributing to morbidity of treatment were recorded. Student’s test with one-way analysis of variance (ANOVA) and Kruskal-Wallis tests were used to compare the variables. P<0.05 was considered statistically significant.
Results: 186 patients with PCOS were divided as lean (BMI<25 kg/m2, control), overweight (BMI 25-30 kg/m2) and obese (BMI>30 kg/m2). Mean ages and primary infertility rates were similar (both, p>0.05), but duration of infertility was longer in overweight and obese patients (p<0.05). Although patients with higher BMI required more induction dose for the cycle, number of retrieved oocytes did not change significantly, with achieved chemical and clinical pregnancy (each, p>0.05). Moreover, fertilization rates of transferred oocytes and rates of adverse outcomes during pregnancies were similar in the groups (each, p>0.05). Although overweight and obese patients with PCOS required more gonadotropin induction for IVF cycle (2311 vs 1920 vs 1752 IU, respectively, p<0.05), the numbers of metaphase II and fertilized oocytes were seen to be similar with increasing BMI (each, p>0.05).
Conclusion: There is longer infertility duration and a higher requirement for gonadotropins in overweight and obese patients with no effect of BMI on most of IVF parameters such as retrieved oocyte, clinical pregnancy, obstetric complication and delivery rate.
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