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Predictive Value of Reactive Hyperemia for Cardiovascular Events in Patients With Peripheral Arterial Disease Undergoing Vascular Surgery

Huang, Alex L ; Silver, Annemarie E ; Shvenke, Elena ; Schopfer, David W ; Jahangir, Eiman ; Titas, Megan A ; Shpilman, Alex ; Menzoian, James O ; Watkins, Michael T ; Raffetto, Joseph D ; Gibbons, Gary ; Woodson, Jonathan ; Shaw, Palma M ; Dhadly, Mandeep ; Eberhardt, Robert T ; Keaney, John F ; Gokce, Noyan ; Vita, Joseph A

Arteriosclerosis, thrombosis, and vascular biology, 2007-10, Vol.27 (10), p.2113-2119 [Periódico revisado por pares]

Philadelphia, PA: American Heart Association, Inc

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Título:
Predictive Value of Reactive Hyperemia for Cardiovascular Events in Patients With Peripheral Arterial Disease Undergoing Vascular Surgery
Autor: Huang, Alex L ; Silver, Annemarie E ; Shvenke, Elena ; Schopfer, David W ; Jahangir, Eiman ; Titas, Megan A ; Shpilman, Alex ; Menzoian, James O ; Watkins, Michael T ; Raffetto, Joseph D ; Gibbons, Gary ; Woodson, Jonathan ; Shaw, Palma M ; Dhadly, Mandeep ; Eberhardt, Robert T ; Keaney, John F ; Gokce, Noyan ; Vita, Joseph A
Assuntos: Age Factors ; Aged ; Associated diseases and complications ; Atherosclerosis (general aspects, experimental research) ; Biological and medical sciences ; Blood and lymphatic vessels ; Blood Flow Velocity ; Brachial Artery - diagnostic imaging ; Brachial Artery - physiopathology ; Cardiology. Vascular system ; Cardiovascular Diseases - diagnostic imaging ; Cardiovascular Diseases - etiology ; Cardiovascular Diseases - mortality ; Cardiovascular Diseases - physiopathology ; Diabetes. Impaired glucose tolerance ; Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous ; Endocrine pancreas. Apud cells (diseases) ; Endocrinopathies ; Female ; Follow-Up Studies ; Humans ; Hyperemia - diagnostic imaging ; Hyperemia - physiopathology ; Kaplan-Meier Estimate ; Male ; Medical sciences ; Microcirculation - physiopathology ; Middle Aged ; Odds Ratio ; Peripheral Vascular Diseases - complications ; Peripheral Vascular Diseases - diagnostic imaging ; Peripheral Vascular Diseases - mortality ; Peripheral Vascular Diseases - physiopathology ; Peripheral Vascular Diseases - surgery ; Predictive Value of Tests ; Prognosis ; Proportional Hazards Models ; Prospective Studies ; Regional Blood Flow ; Risk Assessment ; Risk Factors ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Time Factors ; Ultrasonography ; Vascular surgery: aorta, extremities, vena cava. Surgery of the lymphatic vessels ; Vascular Surgical Procedures - adverse effects ; Vasodilation
É parte de: Arteriosclerosis, thrombosis, and vascular biology, 2007-10, Vol.27 (10), p.2113-2119
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: OBJECTIVE—Reactive hyperemia is the compensatory increase in blood flow that occurs after a period of tissue ischemia, and this response is blunted in patients with cardiovascular risk factors. The predictive value of reactive hyperemia for cardiovascular events in patients with atherosclerosis and the relative importance of reactive hyperemia compared with other measures of vascular function have not been previously studied. METHODS AND RESULTS—We prospectively measured reactive hyperemia and brachial artery flow-mediated dilation by ultrasound in 267 patients with peripheral arterial disease referred for vascular surgery (age 66±11 years, 26% female). Median follow-up was 309 days (range 1 to 730 days). Fifty patients (19%) had an event, including cardiac death (15), myocardial infarction (18), unstable angina (8), congestive heart failure (6), and nonhemorrhagic stroke (3). Patients with an event were older and had lower hyperemic flow velocity (75±39 versus 95±50 cm/s, P=0.009). Patients with an event also had lower flow-mediated dilation (4.5±3.0 versus 6.9±4.6%, P<0.001), and when these 2 measures of vascular function were included in the same Cox proportional hazards model, lower hyperemic flow (OR 2.7, 95% CI 1.2 to 5.9, P=0.018) and lower flow-mediated dilation (OR 4.2, 95% CI1.8 to 9.8, P=0.001) both predicted cardiovascular events while adjusting for other risk factors. CONCLUSIONS—Thus, lower reactive hyperemia is associated with increased cardiovascular risk in patients with peripheral arterial disease. Furthermore, flow-mediated dilation and reactive hyperemia incrementally relate to cardiovascular risk, although impaired flow-mediated dilation was the stronger predictor in this population. These findings further support the clinical relevance of vascular function measured in the microvasculature and conduit arteries in the upper extremity.
Editor: Philadelphia, PA: American Heart Association, Inc
Idioma: Inglês

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Predictive Value of Reactive Hyperemia for Cardiovascular Events in Patients With Peripheral Arterial Disease Undergoing Vascular Surgery

Philadelphia, PA: American Heart Association, Inc

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