Risk factors for lower-extremity vein graft failure.
Lower-extremity vein graft failure causes significant morbidity, increases health care costs, and negatively impacts patient quality of life. Identification of risk factors is essential for patient selection, risk factor modification, and identifying individuals who would benefit from more stringent surveillance protocols. Risk factors can be considered as either patient-related or technical. Here we discuss the patient-related risk factors for vein graft failure. Nontechnical factors related to the indication for operation include operation after a previously failed graft, or redo bypass, critical limb ischemia, and infection. Risk factors for vein graft failure are distinct from the risk factors for cardiovascular events. Young age and African American and Hispanic race are risk factors for lower-extremity vein graft failure. Hypercoaguable and inflammatory states also increase risk for vein graft failure. Therapy with statins is indicated in patients with peripheral atherosclerosis and may have beneficial effects on vein graft function, although further studies are needed in this area.
Monahan
Thomas S
TS
Division of Vascular and Endovascular Surgery, University of California, San Francisco, CA 94143-0222, USA.
Owens
Christopher D
CD
D000367:Age Factors; D050197:Atherosclerosis / Q000150:complications; D050171:Dyslipidemias / Q000150:complications; D006801:Humans; D006965:Hyperplasia / Q000209:etiology; D007249:Inflammation / Q000150:complications; D035002:Lower Extremity / Q000098:blood supply*; D011183:Postoperative Complications / Q000209:etiology; D044469:Racial Groups; D012307:Risk Factors; D012737:Sex Factors; D012907:Smoking / Q000009:adverse effects; D019851:Thrombophilia / Q000150:complications; D017211:Treatment Failure; D014680:Veins / Q000473:pathology / Q000637:transplantation*