The results of atrial and ventricular pacing upon cardiovascular dynamics in 20 subjects with normal cardiovascular systems have been analyzed. The average cardiac index during atrial pacing was 3.17 L./min., M.2 compared to 2.66 during ventricular pacing. Similar conclusions were possible by analysis of the data at varying heart rates of 60 to 89,90 to 109 and 110 to 140. It is concluded that the atrial contribution to ventricular function is significant even in normal subjects.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine