Preejection period | definition of preejection period by Medical dictionary
the interval between onset of QRS complex and cardiac ejection; electromechanical systole minus ejection time.
preejection period Cardiac pacing The interval between electrical initiation of systole and first flow of blood through pulmonic or aortic valves. See Ejection fraction.
References in periodicals archive
Interventricular dyssynchrony (IVDys), represented by the preejection period
difference between pulsed wave Doppler flow in the aorta and pulmonary artery, correlates with QRS duration and typically exceed 40ms in patients with wide QRS (18).