Abstract
Vascular surgery has been widely practiced in hospitals within a general surgical service, although the consequent workload of individual vascular units has been small. There is an increasing body of evidence in favor of a positive relationship between hospital and surgeon volumes and the outcome of arterial surgery. These relationships suggest that vascular surgical procedures might be best placed within a centralized model of care to increase volume and thereby attain best outcomes. This systematic review appraises the current evidence for volume-outcome relationships in vascular surgery from a number of healthcare systems to examine the basis for centralization of vascular surgical services. The index procedures addressed in this review are open or endovascular repair of abdominal aortic aneurysm (AAA), ruptured AAA, descending thoracic aortic aneurysm, and thoracoabdominal aortic aneurysm, along with carotid endarterectomy and lower extremity arterial bypass.
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