Subendometrial Autologous Platelet-Rich Plasma Injection to Optimize Thin Unresponsive Endometrium in a Patient with Recurrent Implantation Failure: A Case Report

Table 1. Endometrial and Doppler parameters before andafter PRP treatment

Parameter	Before PRP treatment	After PRP treatment
Maximum endometrial thickness previously achieved with HRT	6.1 mm	—
Endometrial thickness, cycle day 11 after PRP	—	7.0 mm
Endometrial thickness, cycle day 14 after PRP	—	8.2 mm
Spiral artery PI	1.47	0.95
Spiral artery RI	0.69	0.59
Left uterine artery PI	2.97	1.85
Left uterine artery RI	0.82	0.68
Right uterine artery PI	3.10	2.03
Right uterine artery RI	0.89	0.78
Serum progesterone before FET	—	13 ng/mL
Embryo transferred	—	Single euploid blastocyst
Outcome	—	Clinical pregnancy and live birth