Thorac Cardiovasc Surg 2024; 72(02): 142-145
DOI: 10.1055/s-0043-1769101
Short Communication

Outcome of Revascularizing the Left Subclavian Artery via Carotid-Subclavian Bypass

Bartosz Rylski
1   Department of Cardiovascular Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
,
Monika Matzdorf
1   Department of Cardiovascular Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
,
Stoyan Kondov
1   Department of Cardiovascular Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
,
Martin Czerny
1   Department of Cardiovascular Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
› Author Affiliations

Abstract

Background Endovascular thoracic aortic treatment frequently requires extending the proximal landing zone up into the aortic arch with consecutive covering of the left subclavian artery orifice. Our aim was to report on our outcome of left subclavian artery revascularization using carotid-subclavian bypass via lateral access to the subclavian artery.

Methods Patients' charts in our aortic center were screened for all those who had undergone carotid-subclavian bypass during endovascular thoracic aortic repair procedures. We analyzed perioperative complications such as cervical plexus nerve or phrenic nerve injury, bleeding, and primary and follow-up graft patency.

Results Between 2001 and 2020, 118 patients underwent carotid-subclavian bypass implantation. Postoperative complications included left-sided stroke in 3% and axillary, phrenic, and recurrent laryngeal nerve palsy in 3, 2, and 3%, respectively. Carotid-subclavian bypass–related death rate was 0%. Bypass patency was 92 ± 7% at 5 years. We documented nine (8%) bypass late occlusions with one left upper extremity ischemia and one late stroke due to an embolized thrombus formed at the bypass anastomosis. All others were asymptomatic.

Conclusion Carotid-subclavian bypass surgery is associated with very low risk of death, stroke, or any nerve palsy. Lateral access to the left subclavian artery reduces the risk of phrenic nerve injury.



Publication History

Received: 26 November 2022

Accepted: 14 April 2023

Article published online:
31 May 2023

© 2023. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 
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