[Recovery of the dog myocardial contractile function in the diastolic period].
Isolated canine heart has an expressed ability for autoregulation of mechanical restitution irrespective of the influence of neurohumoral factors and Frank-Starling law on the work of the heart. Mechanical restitution of canine heart in diastolic period starts after the end of mechanical refractory period of the heart and develops exponentially. The higher the heart rhythm the faster the speed of mechanical restitution. The higher the heart rhythm the shorter the mechanical refractory period. Mechanical refractory period of the heart is longer than bioelectrical refractory period.
Gur'ianov
M I
MI
Tobolsk Biological Research Station, Severtsov Institute of Ecology and Evoluton, Russian Acad. Sci., 626150, Tobolsk, 15 Voikov St., Russia.
D000818:Animals; D001919:Bradycardia / Q000503:physiopathology; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D003971:Diastole; D004285:Dogs; D004558:Electric Stimulation; D006339:Heart Rate; D066298:In Vitro Techniques; D009200:Myocardial Contraction; D013610:Tachycardia / Q000503:physiopathology
Vosstanovlenie sokratimosti serdtsa sobaki v diastolicheskom periode.