[Comprehensive investigation of hemodynamics in normalcy and in complete transverse blockade]

Acute experiments were conducted on 75 dogs for complex study of central hemodynamics and the pumping and contractile activity of an intact and altered myocardium by means of an automated system of computer treatment of the data of synchronous monitoring suggested by the authors. It is shown that the development of cardiac insufficiency in complete atrioventricular block is determined by deep desynchronism of performance of the parts of the heart, which is characterized by essential changes of the parameters of myocardial working capacity and hemodynamics and by radical shifts in normal correlative relations. The growing deficit of blood supply is compensated for by myocardial hyperfunction: a relatively small (up to 20%) increase of the capacity of the left parts is attended by a more than double increase of the capacity of the right parts.