The paper covers questions of the emergence and progressing of cardior
espiratory disturbances in coronary patients with defective atrioventr
icular conduction. The authors characterize central and peripheral hem
odynamics in the above patients, diastolic ventricular filling, extern
al respiration, the disturbances of which were studied in correlation
with hemodynamic features and lipid peroxidation. The patients were ex
amined for effects on their cardiorespiratory system of cardioselectiv
e beta-blockers, adrenomimetics, antioxidants, membrane stabilizers.