نتایج جستجو برای: augmentation index
تعداد نتایج: 418960 فیلتر نتایج به سال:
BACKGROUND Arterial stiffness is a variable predictor of morbidity and mortality and a possible marker of vascular injury. Its non-invasive assessment by radial tonometry and analysis of the augmentation index (r-AI) allows identifying patients exposed to higher cardiovascular risk. OBJECTIVE To analyze the influence of r-AI on clinical-biochemical variables and its influence on the prevalenc...
The relationship between diabetes mellitus (DM) and augmentation index (AIx) remains unclear. We conducted an observational cross-sectional study. Subjects were patients who underwent coronary angiography. We examined the relationship between high AIx and several factors. The total number of diabetic patients was 144, and median AIx was 0.256. In diabetic patients, the significant relationship ...
Exercise reduces arterial pressure augmentation through vasodilation of muscular arteries in humans.
Exercise markedly influences pulse wave morphology, but the mechanism is unknown. We investigated whether effects of exercise on the arterial pulse result from alterations in stroke volume or pulse wave velocity (PWV)/large artery stiffness or reduction of pressure wave reflection. Healthy subjects (n = 25) performed bicycle ergometry. with workload increasing from 25 to 150 W for 12 min. Digit...
Augmentation index (AIx), a correlate of mortality, is thought to be influenced by left ventricular contractility and wave reflections. However, the relationship of AIx with left ventricular contractility changes has never been assessed, and the wave reflection theory has recently been questioned. This study sought to examine arterial waveform changes in response to reduced "wave reflection" an...
Peripheral Augmentation Index and Wave Reflection in the Radial Artery To the Editor: We were interested to read the recent article by Munir et al1 and congratulate them on making a valuable contribution to the field of pulse wave analysis. They and Payne and Webb, in their accompanying editorial,2 ponder why the late systolic shoulder (SBP2) corresponds so closely with central systolic blood p...
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