Markers of ischemic neuronal damage, neurological complications of carotid endarterectomy and their management depending on anesthesia type

Abstract

Aim. to identify the anesthesia method for carotid endarterectomy providing minimal ischemic neuronal damage and decreasing the number of post-surgical complications; to adjust the optimal treatment for associated neurological disorders. Methods. An assessment of anesthesia methods was performed in 190 patients who underwent the carotid endarterectomy. The intravenous anesthesia with propofol (first group, 60 patients), regional anesthesia using deep cervical plexus block (second group, 60 patients), and inhalational anesthesia with sevoflurane (third group, 70 patients) were compared. Brain perfusion parameters, neurological status, ischemic neuronal damage markers were examined. Results. In patients undergoing carotid endarterectomy an ischemic neuronal damage is provoked due to brain perfusion decrease as a result of common carotid artery clipping regardless of anesthesia method. Inhalational anesthesia was associated with relatively lower ischemic neuronal damage markers levels. Some patients form every group have developed serious post-surgical neurological complications (stroke, transient cerebral ischemic attack, neurological status deterioration). Post-surgical complications were registered in 10 (16.7%) patients from the first group, in 9 (15%) patients form the second group, in 3 (4.3%) patients from the third group. Citicoline was the most effective drug for associated neurological disorders treatment. Conclusion. Inhalational anesthesia with sevoflurane compared to intravenous anesthesia with propofol and regional anesthesia using deep cervical plexus block limits the neuronal damage and is associated with lower number of post-surgical neurological complications, which can be treated with citicoline.

Keywords

propofol / sevoflurane / neuron-specific enolase / carotid endarterectomy / citicoline

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RIGHTS & PERMISSIONS

Shmelev V.V., Neymark M.I.