Abstract: Objective: Repeated blood transfusions in women with beta-thalassemia major (BTM) may lead to iron overload and increase oxidative stress, consequently resulting in ovarian damage. The aim was to evaluate alterations in ovarian reserve in transfusion-dependent BTM patients over a time period of one year and to compare levels of anti-Mullerian hormone (AMH) in women with BTM and their healthy peers. Material and Methods: This longitudinal prospective study was conducted in women with transfusion-dependent BTM at a tertiary level hospital. The hospital database was interogated for women diagnosed with BTM between 1996 and 2021. AMH levels were assessed at baseline and one year later. Results: Forty-one women with BTM were identified, of whom 25 (60.9%) had amenorrhea and 16 (39.1%) had normal cycles. The mean AMH level of all women was 2.7 +/- 1.8 ng/mL at baseline, significantly lower than the age-matched nomogram value of 4.0 +/- 0.4 ng/mL for a healthy population (p=0.001). The baseline AMH level of patients with amenorrhea were significantly lower than patients with normal menstrual cycles (2.1 +/- 1.8 vs. 3.6 +/- 1.5 ng/mL, p=0.009). After one-year follow-up, there was a trend towards a decrease in the AMH levels of patients with normal menstrual cycles. Conclusion: Serum AMH values are decreased in patients with transfusion-dependent BTM. BTM patients should be educated about the possible effects of repeated blood transfusions on fertility.
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