Intrauterine infusion versus subendometrial injection of Platelet rich plasma in patients with thin endometrium before frozen embryo transfer
Ahmed Salah1, Ayman Shehata Dawood2* and Ahmed Saber Soliman1
1Department of Obstetrics and Gynecology, Benha University, Benha, Egypt
2Department of Obstetrics and Gynecology, Tanta University, Tanta, Egypt
*Corresponding Author: Ayman Shehata Dawood, Department of Obstetrics and
Gynecology, Tanta University, Tanta, Egypt.
Received:
June 15, 2026; Published: July 03, 2026
Abstract
Aim: To investigate the effects of PRP on pregnancy rates and endometrial thickness by two different methods.
Patients and methods: Subjects were assigned to either hysteroscopic PRP group where PRP was injected subendometrially under hysteroscopic guidance (n = 50) or intrauterine PRP group where PRP was infused intra-cavitary by ET catheter (n = 73). Clinical pregnancy rates and endometrial thickness were recorded.
Results: Between the two groups, baseline demographic information and cycle features were similar, indicating well-balanced study cohorts. Clinical pregnancy rate was lower in the intrauterine PRP group compared with the Hysteroscopic PRP group (30.1% vs. 60.0%) indicating a superior outcome with the Hysteroscopic approach. BMI remained the only significant predictor of endometrial thickness (95% CI: -0.19 to -0.01, β = -0.10, p = 0.03). Estradiol dose (Dose E2) was not significantly associated with endometrial thickness (95% CI: -0.18 to 0.20, β = 0.01, p = 0.935), nor were PRP route, age, number of embryos transferred, or duration of infertility.
Conclusion: Both routes thickened the endometrium similarly, but hysteroscopic subendometrial injection achieved clinical pregnancy at roughly twice the rate of intrauterine infusion, and the difference held after adjustment.
Keywords: Endometrial Thickness; PRP; Hysteroscopy; Intrauterine Infusion; Pregnancy Rate
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