VBAC
Pronunciation: VEE-back
Also written as: VBAC — vaginal birth after caesarean
Vaginal birth after caesarean - attempt at vaginal delivery following a previous caesarean section delivery.
Full Definition
Vaginal birth after caesarean (VBAC) refers to the successful vaginal delivery of a baby by a woman who has previously delivered by caesarean section. VBAC is considered when the previous caesarean was performed for non-recurring indications and when specific criteria are met including appropriate scar type and adequate monitoring facilities. Success rates vary between 60-80% depending on individual factors. The main risk is uterine rupture, which occurs in approximately 0.5% of VBAC attempts. Careful patient selection and continuous monitoring during labour are essential for safe VBAC delivery.
Usage
Usage note: Commonly pronounced as a word 'VEE-back' rather than individual letters; distinguish from TOLAC (trial of labour after caesarean).
In Context
- "The patient was counselled regarding VBAC options and associated risks." — Antenatal consultation note
- "Successful VBAC was achieved after 8 hours of active labour with continuous monitoring." — Delivery summary