Endometrial thickness following early miscarriage in IVF pat
Endometrial thickness (ET) has previously been shown to positively correlate with implantation and clinical pregnancy rates. Pregnancies achieved using the in-vitro fertilization (IVF) technique are prone to higher rates of early miscarriage.

The aim of this study was to compare the effects of expectant management, medical treatment (Misoprostol), and dilation and curettage (D&C) for early miscarriage following IVF cycles on the subsequent cycle outcomes - endometrial thickness and reproductive outcomes.

A retrospective cohort study of women who underwent embryo transfer conceived and had a first-trimester miscarriage with at least one subsequent embryo transfer. ET measurements during fresh or frozen-thawed IVF cycles were assessed for each patient. Comparisons of ET differences between the miscarriage and the subsequent cycles, as well as reproductive outcomes, were performed according to the initial miscarriage management approach.

A total of 223 women were included in the study. Seventy-eight women were managed conservatively, 61 were treated with Misoprostol and 84 women underwent D&C.

- Management by D&C, compared to conservative management and Misoprostol treatment was associated with a higher prevalence of a significant (>2 mm) ET decrease and was the only approach associated with a significant increase in the rates of ET under 7 and 8 mm in the following cycle.

- Clinical pregnancy rates were significantly lower following D&C compared with conservative management and Misoprostol as well as implantation rate.

The data suggest that D&C management of a miscarriage is associated with decreased ET and higher rates of thin endometrium in the subsequent IVF cycle, compared with conservative management and Misoprostol treatment. In addition, implantation and pregnancy rates were significantly lower after D&C.

Reproductive Biology and Endocrinology
Source: https://doi.org/10.1186/s12958-021-00780-7
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