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(Hypertension. 2008;51:848.)
© 2008 American Heart Association, Inc.

Original Articles

Pulsatile but Not Steady Component of Blood Pressure Predicts Cardiovascular Events in Coronary Patients

Piotr Jankowski; Kalina Kawecka-Jaszcz; Danuta Czarnecka; Magorzata Brzozowska-Kiszka; Katarzyna Styczkiewicz; Magdalena Loster; Magorzata Kloch-Badeek; Jerzy Wiliski; Adam M. Curyo; Dariusz Dudek on behalf of the Aortic Blood Pressure and Survival Study Group

From the I Department of Cardiology and Hypertension (P.J., K.K.-J., D.C., M.B.-K., K.S., M.L., M.K.-B., J.W., A.M.C.) and the II Department of Cardiology (D.D.), Collegium Medicum Jagiellonian University, Kraków, Poland.

Correspondence to Piotr Jankowski, I Department of Cardiology and Hypertension, Jagiellonian University Medical College, 17 Kopernik St, 31-501 Kraków, Poland. E-mail piotrjankowski{at}interia.pl

Although the differences between central and peripheral blood pressure (BP) values have been known for decades, the consequences of decision making based on peripheral rather than central BP have only recently been recognized. There are only a few studies assessing the relationship between intraaortic BP and cardiovascular risk. In addition, the relationship between central BP and the risk of cardiovascular events in a large group of coronary patients has not yet been evaluated. Therefore, the aim of the study was to determine the prognostic significance of central BP-derived indices in patients undergoing coronary angiography. Invasive central BPs were taken at baseline, and study end points were ascertained during over a 4.5-year follow-up in 1109 consecutive patients. The primary end point (cardiovascular death or myocardial infarction or stroke or cardiac arrest or heart transplantation or myocardial revascularization) occurred in 246 (22.2%) patients. Central pulsatility was the most powerful predictor of the primary end point (hazard ratio [HR] 1.30, 95% confidence interval [CI] 1.14 to 1.48). Central pulse pressure was also independently related to the primary end point (HR 1.25, 95% CI 1.09 to 1.43). Central mean BP as well as peripheral BP parameters were not independently related to the primary end point risk. Central pulsatility was also related to risk of cardiovascular death or myocardial infarction or stroke. The pulsatile component of BP is the most important factor related to the cardiovascular risk in coronary patients. It is more closely associated with cardiovascular risk than steady component of BP.

Key Words: blood pressure • central pulse pressure • pulsatility • cardiovascular risk • atherosclerosis • coronary artery disease

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