Revista Ciencias Biomédicas (Apr 2014)
LATE ABORTIONS: FINDINGS IN STUDIES OF PATHOLOGY (IN SPANISH)
Abstract
Introduction: late abortion is defined as the loss of pregnancy between 12 and 22 weeks of gestation or expulsion of the fetus weighing less than 500 grams. Objectives: to determine the most frequent findings in pathological studies on late abortions. Metodology: this is a case series study. Fifty-four patients with late abortions, who underwent pathological study of both the fetus and the placenta were included.Fifty-five products of conception were evaluated. Medical records were reviewed. Classification given by Ovalle in 2005 was used to determinate the primary causes of stillbirth. Results: the age of the patients studied was 21-27 years (quartile 25-75) and the gestational age 17-19 weeks(quartile 25-75). Extrinsic fetal hypoxia was the most frequently primary cause found in placental study, mainly retroplacental hematoma and massive deposits of intervillous fibrin. Conclusions: the fetal hypoxia was determined as the main primary cause of late abortion. Rev.cienc.biomed. 2014:5(2)247-252. KEYWORDS Spontaneous abortion, Fetal hypoxia, Placenta diseases, Congenital abnormalities