Vasa praevia: diagnosis and management

Abstract

Vasa praevia occurs when unprotected fetal vessels cross the cervix beneath the presenting part. It occurs in approximately 1 in 3000–6000 births. Rapid fetal haemorrhage can result. A high index of suspicion and appropriate use of prenatal ultrasonography may prevent perinatal death. Learning objectives: To recognise the risk factors and diagnostic criteria. To review the role of expert ultrasonography. To recognise the need for prompt action and a clear care plan. Ethical issues: Should prenatal detection of vasa praevia be a routine component of antenatal care? Should resource constraints influence the availability of prenatal diagnostic testing? Please cite this article as: Murray A, Murphy DJ. Vasa praevia: diagnosis and management. The Obstetrician & Gynaecologist 2008;10:217–223.