Relation between arterial compliance and the prematurity of reflected wave on pulse pressure curve evaluated by tonometric sphygmography
Prisadă, O.V.; Covic, A.; Boaru, I.; Dubei, N.; Mutică, C.; Ungureanu, G.
Revista Medico-Chirurgicala a Societatii de Medici Si Naturalisti Din Iasi 108(3): 526-531
2004
ISSN/ISBN: 0048-7848 PMID: 15832968 Document Number: 582867
The effect of antihypertensive drugs on the arterial pressure pulse can usually be explained by a change in the timing or intensity of wave reflection or by alteration in the pattern of ventricular ejection. Alteration in timing wave reflection is believed to cause the characteristic changes of pressure wave such: augmentation, augmentation index, "precocity index of second systolic peek" (P2). After calcium channel blockers augmentation decreases from 15 mmHg to 9.4 mmHg, augmentation index P2/P1 (P1 is the first systolic peek) decreases from 132.2 +/- 20% to 129.2 +/- 19.5% and "precocity index of P2" increases from 68.8 +/- 5% ejection duration to 71.8 +/- 4.6% ejection duration.