Comparison of letrozole & clomiphene citrate as first-line o
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To compare the role between Clomiphene Citrate & letrozole for infertile patients with Polycystic Ovary Syndrome as an ovulation induction agent & which drug can be chosen as a first line ovulation induction agent in future.

Total 50 patients of PCOS (diagnosed by Rotterdam criterion) were included in this study. In this clinical trial out of 50 patients, 25 patients received Clomiphene Citrate 100mg and rest 25 patients received Letrozole 2.5mg daily from day 2-6 or3-7 of the menstrual cycle. Follicular respose was carried out from day 9 by trans-vaginal sonogram till at least 1 mature follicle (18-22mm) was detected & hCG was administered at a dose of 5000 IU. Timed intercourse was advised 24-36 hours after hCG injection. The number of Follicles, Endometrial Thickness, Ovulation rate & Pregnancy rate were measured in both groups.

Result: Monofollicular development was statistically significantly, greater in the Let group (CC 61.9%, Let 86.9%). There was also statistically significant difference between the two groups in endometrial thickness. Similarly, The ovulation rate was 84%% in CC group and 92% in Let group. The pregnancy rate was 20% in CC group and 36% in Let group.

Conclusively Letrozole might be an acceptable alternative to clomiphene citrate to induce ovulation and pregnancy in PCOS patients.

Source:https://www.innovativepublication.com/journals/IJOGR/article-details/10703/volume/281/issue/836
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