DETECTING THE HAEMODYNAMIC EFFECTS OF PREMATURE SYSTOLES WITH IMPEDANCE CARDIOGRAMS / 重庆医科大学学报

0.05). The average SV of premature systoles is 35% of sinus beats. Premature systoles less than 5 beats/min may cause and average drop of 5% of cardiac output (CO), While the premature systoles increased to 10-20 beats/min, the CO would be dropped further of 10-19%. there Was a high linear correlation between sr of all premature systoles and the coupling interval premature systoles (p