Risk factors associated with subaponeurotic haemorrhage in full-term infants exposed to vacuum extraction.

Objectives: To determine obstetric and neonatal risk factors associated with subaponeurotic haemorrhage (SAH) in infants exposed to vacuum extraction.

Design: A prospective observational study.

Setting: In the labour room, operation theatre, postnatal wards and neonatal intensive care unit (NICU) of a tertiary teaching hospital.