Comparison of different cardiac relaxation indices.
Sensitivity (response to epinephrine infusion) and specificity (response to changes in pre- and afterload) of some cardiac relaxation indices were compared in acute experiments on cats treated with ganglionic blocker arfonad. Some new indices proposed by us provide better characteristics than widely used relaxation time constant (t) and maximum first derivative of the left ventricular pressure (-dP/dt)max.
Alipov
N N
NN
Department of Normal Physiology, Russian State Medical University, Moscow. alipov@practica.ru
Izrail'tyan
I M
IM
Sokolov
A V
AV
Trubetskaya
L V
LV
Kuznetsova
T E
TE
D000818:Animals; D001011:Aorta / Q000502:physiology; D006328:Cardiac Catheterization; D002309:Cardiology / Q000379:methods*; D002415:Cats; D005260:Female; D006439:Hemodynamics; D008297:Male; D009200:Myocardial Contraction / Q000502:physiology*; D015203:Reproducibility of Results; D013997:Time Factors