What is the minimum stump pressure that ensures adequate brain perfusion during carotid endarterectomy?

In the context of carotid endarterectomy, maintaining adequate brain perfusion is crucial to prevent neurological complications. The minimum stump pressure is a critical measure during this procedure, as it reflects the brain's blood supply when the blood flow through the carotid artery is temporarily interrupted.

A stump pressure of 60 mm-Hg is considered the effective threshold to ensure sufficient cerebral perfusion. At this level, it is believed that the brain is receiving adequate blood flow to meet its metabolic needs, minimizing the risk of ischemia during the surgery.

Choosing a stump pressure lower than 60 mm-Hg may not provide enough perfusion to the brain, increasing the risk of cognitive deficits and stroke. Thus, the selection of 60 mm-Hg is based on clinical guidelines and empirical evidence indicating that this level supports adequate cerebral oxygenation and nutrient delivery during the critical moments of the surgical intervention.