Electrokyrnographic Studies in Insufficiency of the Aortic and Pulionic Valves By HOwARD

The following paper (lescribes the results of electrokymographic studies performed on patients vith l)roved aortic insufficiency. Alterations in the shape of the aortic ejection curve were found and were accompanied by a diminution or absence of the incisura in the presence of insufficiency of the aortic valves. Alterations in heart border motion of the ventricles Xwere also found. The possible dynamic factors responsible for these changes are discussed and the clinical al)plication of the electrokymograph to aortic and pulmonic valvular disease is pointed out.