In a study of eighty-three cases of bundle branch block, two cases of complete heart block with idioventricular rhythm, and twenty-one ventricular premature beats in fourteen patients, the mechanical ejection events of the greater and lesser circulation were recorded simultaneously by electrokymograms of the ascending aorta and pulmonary artery. We failed to find mechanical ejection asynchronism accompanying the electrical asynchronism in about 70 per cent of the cases. We did, however, find evidence of delayed ejection from both ventricles in the majority of cases. Several possible explanations for our findings are discussed.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine