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Ann Thorac Surg 1999;67:657-660
© 1999 The Society of Thoracic Surgeons

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Original Articles

Common brachiocephalic trunk: strategies for revascularization

^a Division of Vascular Surgery, University of California, San Francisco, San Francisco, California, USA

Accepted for publication August 5, 1998.

Address reprint requests to Dr Stoney, Division of Vascular Surgery, UCSF, 505 Parnassus Ave, M488, San Francisco, CA 94143-0222

Background. A common brachiocephalic trunk, in which both common carotid arteries and the right subclavian artery arise from a single trunk off the arch, is a normal variant of aortic arch branching that occurs in approximately 10% of the population. Because three of the four primary sources of cerebral blood flow arise from a single aortic branch, stenosis or occlusion of a common trunk can cause severe ischemic consequences. Common trunk revascularization has been described, but there have been no reports focusing on the management options for occlusive disease of this vascular anatomy.

Methods. A retrospective review of our experience with innominate artery revascularization identified 6 patients who underwent revascularization of a common brachiocephalic trunk between 1977 and 1997. All patients were symptomatic, with either total occlusion (n = 3) or critical stenosis (n = 3) caused by atherosclerosis (n = 5) or Takayasu’s arteritis (n = 1). Revascularization was achieved by a prosthetic bypass graft from the ascending aorta to the innominate or left common carotid arteries or both (n = 5); or transarterial endarterectomy (n = 1). Concomitant endarterectomy of branch vessels was performed in 3 patients.

Results. There was one perioperative death from myocardial infarction, and one perioperative stroke, with death occurring 1 month after hospital discharge. One patient developed cerebral hyperperfusion syndrome 1 week after endarterectomy that resolved without sequelae with antihypertensive medications. During a follow-up period ranging from 1 to 20 years, there was one late death from congestive heart failure 5 years after operation. All surviving patients are alive and free from symptomatic recurrence.

Conclusions. Revascularization for occlusive disease of a common brachiocephalic trunk can be achieved with effective and durable relief of symptoms using either a prosthetic bypass graft or endarterectomy. However, neurologic complications in 2 patients, which were fatal in 1, attest to the potential cerebral ischemic threat posed by occlusive disease of a common brachiocephalic trunk.

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