Sphygmomanometrically Determined Pulse Pressure Is a Powerful Independent Predictor of Recurrent Events After Myocardial Infarction in Patients With Impaired Left Ventricular Function

Author:

Mitchell Gary F.1,Moyé Lemuel A.1,Braunwald Eugene1,Rouleau Jean-Lucien1,Bernstein Victoria1,Geltman Edward M.1,Flaker Greg C.1,Pfeffer Marc A.1,Investigators for the SAVE1

Affiliation:

1. From the Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Mass (G.F.M., E.B., M.A.P.); the University of Texas Health Science Center and the School of Public Health, Houston (L.A.M.); the Institut de Cardiologie de Montreal, Québec (J.-L.R.), the University of British Columbia, Vancouver, British Columbia (V.B.); Washington University School of Medicine, St Louis, Mo (E.M.G.); and the University of Missouri Health Science Center, Columbia (G.C.F.).

Abstract

Background There is increasing evidence of a link between conduit vessel stiffness and cardiovascular events, although the association has never been tested in a large post–myocardial infarction patient population. Methods and Results We evaluated the relationship between baseline pulse pressure, measured by sphygmomanometry 3 to 16 days after myocardial infarction, and subsequent adverse clinical events in the 2231 patients enrolled in the SAVE Trial. Increased pulse pressure was associated with increased age, left ventricular ejection fraction, female sex, history of prior infarction, diabetes, and hypertension and use of digoxin and calcium channel blockers. Over a 42-month period, there were 503 deaths, 422 cardiovascular deaths, and 303 myocardial infarctions. Pulse pressure was significantly related to each of these end points as a univariate predictor. In a multivariate analysis, pulse pressure remained a significant predictor of total mortality (relative risk, 1.08 per 10 mm Hg increment in pulse pressure; 95% CI, 1.00 to 1.17; P <.05) and recurrent myocardial infarction (relative risk, 1.12; 95% CI, 1.01 to 1.23; P <.05) after control for age; left ventricular ejection fraction; mean arterial pressure; sex; treatment arm (captopril or placebo); smoking history; history of prior myocardial infarction, diabetes, or hypertension; and treatment with β-blockers, calcium channel blockers, digoxin, aspirin, or thrombolytic therapy. Conclusions These data provide strong evidence for a link between pulse pressure, which is related to conduit vessel stiffness, and subsequent cardiovascular events after myocardial infarction in patients with left ventricular dysfunction.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Physiology (medical),Cardiology and Cardiovascular Medicine

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