Abstract

PARRA-ANAYA, Guido et al. Placenta accreta: prenatal diagnosis by ultrasonography and magnetic resonance imaging correlated with histopathological results in Barranquilla, Colombia. Rev Colomb Obstet Ginecol [online]. 2009, vol.60, n.3, pp.281-285. ISSN 0034-7434.

Introduction: An increased risk of placenta accreta and placenta percreta is associated with patients having had previous caesarean deliveries or placenta previa; such conditions have been increasing of late. Prenatal detection may be helpful in reducing maternal morbidity and mortality. Objective: evaluating the usefulness of ultrasound (US) and magnetic resonance (MR) for prenatal detection of abnormal placental separation. Methodology: this was a prospective study which included 11 patients in the third trimester of pregnancy having a history of previou scaesarean and placenta previa. Transabdominal and transvaginal US, colour Doppler and MR were thus performed, seeking signs of placenta accreta; these were compared to histopathological findings and data from when birth was given. Results: US and MR had 70% sensitivity (95% CI 35.4-91.9) whilst colour Doppler had 90% sensitivity (95%CI 54.1-99.5). Conclusions: US and colour Doppler US might be useful, highly sensitive techniques for detecting abnormal adherence of the placenta in patients having a history of placenta previa and previous caesarean deliveries. Further studies are required for confirming their diagnostic validity.

Keywords : placenta accreta; ultrasonography and colour Doppler; prenatal detection; magnetic resonance.

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