Etiology and diagnostic approach of recurrent miscarriage at a reference center in Bucaramanga, Colombia.

Objective: The purpose of this study was to determine the etiologies of recurrent miscarriage in our hospital and whether its diagnostic approach followed the recommendations of the American Society of Reproductive Medicine (ASRM) guidelines published in 2012 and the National Institute for Health and Care Excellence (NICE) guidelines published in 2011.

Methods: This was a retrospective study. The medical records of 158 patients diagnosed with recurrent miscarriage between 2013 and 2018 at Santander University Hospital were reviewed.

Estrogen therapy increases plasma concentrations of nitric oxide metabolites in postmenopausal women but increases flow-mediated vasodilation only in younger women.

Objective: To evaluate the effect of estrogen therapy (ET) on endothelial nitric oxide (NO) production and in flow-mediated vasodilation (FMV).

Design: Randomized, crossover, double-blind, placebo-controlled study.

Setting: Healthy postmenopausal women in an academic research environment.