[Severe hypotension in cesarean section. Aortocaval compression and regional anesthesia].

Three patients due to be operated by caesarean section under regional anaesthesia developed severe hypotension/circulatory collapse. The sympaticus blockade induced by epidural-/spinal anaesthesia aggravates the effect of aortocaval compression present in all pregnant women at term. We discuss prophylactic measures and treatment of hypotension.