Selective shunt during carotid endarterectomy using routine awake test with respect to a lower shunt rate.
10.4174/jkss.2013.84.4.238
- Author:
Jayun CHO
1
;
Kyung Keun LEE
;
Woo Sung YUN
;
Hyung Kee KIM
;
Yang Ha HWANG
;
Seung HUH
Author Information
1. Division of Transplantation and Vascular Surgery, Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea. shuh@knu.ac.kr
- Publication Type:Original Article
- Keywords:
Carotid endarterectomy;
Intraoperative monitoring;
Brain ischemia;
Prevention
- MeSH:
Anesthesia, Conduction;
Brain;
Brain Ischemia;
Carotid Artery, Internal;
Circle of Willis;
Collateral Circulation;
Endarterectomy, Carotid;
Humans;
Male;
Monitoring, Intraoperative;
Neurologic Examination;
Prospective Studies;
Retrospective Studies;
Stroke
- From:Journal of the Korean Surgical Society
2013;84(4):238-244
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To evaluate shunt rate and discuss the resultsrelated to selective shunt placement during carotid endarterectomy (CEA) using routine awake test. METHODS: Patients with CEA from 2007 to 2011 were retrospectively reviewed from prospectively collected data. The need for shunt placement was determined by the awake test, based on the alteration in the neurologic examination. We collected data by using the clinical records and imaging studies, and investigated factors related to selective shunt such as collateral circulation and contralateral internal carotid artery (ICA) stenosis. RESULTS: There were 45 CEAs under regional anesthesia with the awake test in 44 patients. The mean age was 61.8 +/- 7.1 years old. There were 82.2% (37/45) of males, and 68.9% (31/45) of symptomatic patients. Selective shunt placement had been performed in only two (4.4%) patients. Among them fewer cases (4%) had severe (stenosis >70%) contralateral ICA lesions, and more cases (91%) of complete morphology of the anterior or posterior circulation in the circle of Willis. There was no perioperative stroke, myocardial infarctionor death, and asymptomatic new brain lesions were detected in 4 patients (9%), including 2 cases of selective shunt placement. CONCLUSION: CEA under routine awake test could besafe and feasible method with low shunt placement rate in selected patients.
