Low-dose aspirin improves endometrial receptivity in the midluteal phase in unexplained recurrent pregnancy loss.

Objective: To evaluate differences in Doppler parameters and pregnancy outcomes, if any, and to determine the predictive accuracy of such indices, as well as the effects of low-dose aspirin (LDA) in unexplained recurrent pregnancy loss (URPL).

Methods: An observational study was conducted at Ren Ji Hospital, Shanghai, China, from May 2015 to December 2016. The endometrial thickness, and the pulsatility index (PI), resistive index (RI), and systolic-to-diastolic ratio (S/D) values of endometrial and uterine artery blood flow were collected.

Accuracy of sonographic fetal weight estimation prior to delivery in a Chinese han population.

Objective: To compare the sonographic-estimated fetal weights (EFW) calculated with the Hadlock formula and with the Woo formula in a group of Chinese pregnant women.

Methods: We prospectively recruited term pregnancies for sonographic biometric examination. EFWs were calculated according to two formulas and compared with the corresponding birth weight (BW).