Both diastolic and systolic function alternate in pulsus alternans.
Guntheroth
Warren G
WG
D003971:Diastole / Q000502:physiology; D015150:Echocardiography, Doppler; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D013318:Stroke Volume / Q000502:physiology; D013599:Systole / Q000502:physiology; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging* / Q000503:physiopathology*