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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES VASCULAR SECTION
The Journal of Cardiovascular Surgery 2001 June;42(3):365-8
Management of carotid coils during routine carotid endarterectomy
Hines G. L., Bilaniuk J., Cruz V.
From the Department of Thoracic and Cardiovascular Surgery Winthrop-University Hospital, Mineola, New York, USA
Background. A coil in the internal carotid artery (ICA), defined as a circular configuration or exaggerated “S” shape of the ICA, is occasionally encountered during endarterectomy for carotid bifurcation lesions. The significance of coils as an etiology for symptoms is difficult to determine. It is thought, however, that the failure to correct coils and kinks during routine carotid endarterectomy (CE) may lead to turbulence and failure of the CE. Various techniques have been discussed to repair coils.
Methods. Our technique consisted of complete dissection of the coil, routine use of a Javid shunt, standard endarterectomy, resection of the redundant ICA, re-approximation of the posterior wall of the ICA and patch angioplasty of the anterior wall. Three hundred and fifteen patients underwent CE between August, 1998 and February, 2000. Fifteen patients (4.7%) had a carotid coil that was repaired. There were ten men and five women. Mean age was 72.6±6.1 years. Ten patients had an asymptomatic stenosis. Four patients had lateralizing symptoms and one patient had dizziness. Fifteen patients underwent preoperative duplex scanning and 14 of these patients had MRA scans performed. All patients had a preoperative stenosis of 80-99% by duplex on the operated side. The right carotid artery was repaired in 12 patients. The left in three patients. The length of resected artery varied from 1.2-2.8 cm (1.93±0.49 cm).
Results. All patients survived surgery. One patient developed a cerebellar stroke on the third postoperative day. A postoperative carotid duplex scan demonstrated a widely patent repair. There were no cranial nerve injuries in this series. One patient died seven months after surgery from cardiac events with no follow-up duplex exam. There have been no long term strokes or anastomotic complications. Follow-up duplex scans demonstrated widely patent repairs (1-15% stenosis) in seven patients and low end 15-49% stenosis in five patients.
Conclusions. Resection of redundant ICA with re-anastomosis of the posterior wall and patch reconstruction of the anterior wall gives acceptable perioperative and long term results.