Abstract
We examined the influence of carotid stenting on mean blood pressure (MBP) and pulse rate (PR) . Seventeen patients who underwent carotid stenting between January and December 1998 were divided into 2 groups : 12 patients whose stents reached from the internal carotid artery (ICA) to the common carotid artery (CCA) were termed the CCA group, and 5 patients whose stents were localized within the ICA were termed the ICA group. The MBP and PR just before and during carotid stenting, and the patterns of circadian rhythm of MBP at 4 days before and 18 days after carotid stenting, were analyzed. A compartson of the 2 groups revealed that the CCA group manifested significant hypotension and bradycardia during carotid stenting (p<0.001). In other words, patients whose lesions included the CCA tended to have a strong carotid sinus reflex during carotid stenting, and had a risk of cerebral ischemia induced by hemodynamic changes. However, no patients displayed persistent hypotensive or bradycardia effects after carotid stenting, and there was no significant difference in the circadian rhythm of MBP. Thus, carotid stenting for lesions including the CCA requires strict perioperative management for hemodynamic ischemia.
