Anaesthetic management of an obstetric patient with variegate porphyria

Porphyria is an uncommon disease that can produce life-threatening attacks with a mortality rate of up to 10%, specifically as the result of administration of porphyrinogenic medications. In obstetric anaesthesia there are many situations where drugs are given in an emergency and it is therefore important to be prepared for complications to avoid inadvertently inducing an iatrogenic porphyric crisis. We discuss the case of a 20-year-old nulliparous woman with variegate porphyria who required an emergency caesarean section in labour, and the drugs that are commonly used in obstetric practice.