Nerve-Sparing Dissection as Alternative to Anesthesia of Carotid Sinus Nerve in Preparation for Carotid Endarterectomy

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RESUMO

This prospective randomized study was undertaken to determine intraoperatively the hemodynamic effects of local anesthesia of the carotid sinus nerve during carotid dissection in preparation for endarterectomy. Twenty carotid endarterectomy patients were divided into 2 groups: a control group of 10 patients, in whom ordinary saline solution was infiltrated into the carotid bifurcation; and a study group of 10 patients, in whom 5 mL of 2% lidocaine hydrochloride was infiltrated. To determine whether a nerve-sparing dissection might in itself be adequate to prevent the perioperative hemodynamic instability associated with carotid endarterectomy, we took scrupulous care in all patients to avoid injuring the carotid sinus nerve.

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