title: [First and second derivatives of central pulse curves in bloodless methods of study of the force and rate of myocardial contractions].
abstract: An original technique was developed for the analysis of volume sphygmograms of the central pulse and of their derivatives that permit an indirect judgement of the maximum speed of aortic pressure growth and maximum acceleration. The technique of the examination, the methods of calculations, their substantiation and normal limits are presented. Examples are given of the employment of the technique in cases of functional and pharmacological tests. The method may be widely used under clinical conditions for the study of the functional state of the myocardium and of the individual effect of drugs (cardiac glycosides, alpha-and beta-adrenergic receptors blockers, etc.).
mesh_terms: D000328:Adult; D001795:Blood Pressure Determination; D006334:Heart Function Tests; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D011674:Pulse
vernacular_title: Pervaia i vtoraia proizvodnye kryvykh tsentral'nogo pul'sa pri beskrovnykh metodakh issledovaniia sily i skorosti serdechnykh sokrashcheniĭ