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Evaluation Studies
Journal Article
Eversion carotid endarterectomy: a technical alternative that may obviate patch closure in women.
Cardiovascular Surgery : Official Journal of the International Society for Cardiovascular Surgery 2003 October
PURPOSE: Recurrent carotid stenosis following standard longitudinal carotid endarterectomy (s- CEA), with and without patch angioplasty, effects the durability of the procedure and can lead to reintervention. The purpose of this study is to evaluate the incidence of restenosis following eversion carotid endarterectomy (e-CEA) in women.
METHODS: The records of all patients undergoing elective carotid endarterectomy (CEA) for symptomatic and asymptomatic high-grade carotid stenosis over a 5-year period from July 1994 to June 1999 were reviewed. Eversion endarterectomy was performed preferentially under regional anesthesia in awake patients. Postoperatively, patients were routinely evaluated by duplex scans at 3 months, 6 months, 12 months, and yearly thereafter. Hemodynamically significant restenosis (>70%) via duplex scans was confirmed by standard or magnetic resonance angiography. Student's t-test and Chi square analysis were used to assess statistical significance and assumed for P<0.05.
RESULTS: Over this 5-year period, 3429 eversion carotid endarterectomies were done for symptomatic (female: 375, male: 573) and asymptomatic (female: 1091, male: 1390) high grade carotid stenosis. In the postoperative period 18 (0.9%) male and 12 (0.8%) female patients developed a permanent stroke (P = NS). Operative mortality was 0.6% (n = 12) in males and 0.5% (n = 8) in females (P = NS). Cranial nerve injuries, wound infections, and neck hematoma occurred in 7 (0.4%), 2 (0.1%), and 26 (1.3%) male and in 3 (0.2%), 3 (0.2%), and 15 (1.0%) female patients, respectively. Recurrent carotid stenosis greater than 70% via duplex scan (PSV >125 cm/s and EDV >100 cm/s) developed in 12 (1.0%) males and 15 (1.5%) females (P = NS).
CONCLUSION: The eversion technique for CEA requires both the transection and anastomosis of the internal carotid artery at the carotid bulb, and appears to result in a low incidence of restenosis in women. This is a straightforward technique and obviates the need for primary closure of distal smaller caliber internal carotid artery that can lead to narrowing, and the use of patch closure that has its attendant risks.
METHODS: The records of all patients undergoing elective carotid endarterectomy (CEA) for symptomatic and asymptomatic high-grade carotid stenosis over a 5-year period from July 1994 to June 1999 were reviewed. Eversion endarterectomy was performed preferentially under regional anesthesia in awake patients. Postoperatively, patients were routinely evaluated by duplex scans at 3 months, 6 months, 12 months, and yearly thereafter. Hemodynamically significant restenosis (>70%) via duplex scans was confirmed by standard or magnetic resonance angiography. Student's t-test and Chi square analysis were used to assess statistical significance and assumed for P<0.05.
RESULTS: Over this 5-year period, 3429 eversion carotid endarterectomies were done for symptomatic (female: 375, male: 573) and asymptomatic (female: 1091, male: 1390) high grade carotid stenosis. In the postoperative period 18 (0.9%) male and 12 (0.8%) female patients developed a permanent stroke (P = NS). Operative mortality was 0.6% (n = 12) in males and 0.5% (n = 8) in females (P = NS). Cranial nerve injuries, wound infections, and neck hematoma occurred in 7 (0.4%), 2 (0.1%), and 26 (1.3%) male and in 3 (0.2%), 3 (0.2%), and 15 (1.0%) female patients, respectively. Recurrent carotid stenosis greater than 70% via duplex scan (PSV >125 cm/s and EDV >100 cm/s) developed in 12 (1.0%) males and 15 (1.5%) females (P = NS).
CONCLUSION: The eversion technique for CEA requires both the transection and anastomosis of the internal carotid artery at the carotid bulb, and appears to result in a low incidence of restenosis in women. This is a straightforward technique and obviates the need for primary closure of distal smaller caliber internal carotid artery that can lead to narrowing, and the use of patch closure that has its attendant risks.
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