Stein and Sabbah1 found peak aortic blood acceleration to be a good index of global left ventricular (LV) performance. Bennett et al2 demonstrated a close relation between peak aortic blood acceleration and LV ejection fraction (EF) measured angiographically. Gardin et al3 and we4 observed by continuous-wave Doppler a decrease of both peak aortic blood acceleration and peak blood velocity with age in adults with no evidence of heart disease. Gardin et al3 suggested that the decrease in aortic peak flow velocity noted in normal subjects with increasing age is probably related to an increase in aortic root dimension. Increased aortic size with age may have caused a reduction of aortic peak velocity in our older age groups.4 Therefore, we investigated another index of LV performance, the resting LVEF, to attain more information about the characteristics of resting LV function in elderly patients with no evidence of heart disease.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine