00000cab a22000003a 4500 UP-99796217609211946 Buklod 20231007234033.0 m |o d | ta 100319s xx d | ||r ||||| || DENGII eng Geddes, L.A. Controversy over the dicrotic notch and wave in the blood pressure record. pp. 167-169 The term "dicrotic" means double beat. The dicrotic notch and the ensuing wave seen in the arterial pressure record is the pressure transient produced when the aortic valve closes at the end of left-ventricular ejection. It is also present in the pulmonary artery pressure record and signals closure of the pulmonic valve; yet its existence was doubted for many years. In the late 1800s, physiologists and clinicians argued for years over its existence; this is the story of that controversy. Aortic valve closure. Arterial pressure record. Blood pressure record. Clinicians. Dicrotic notch. Double beat. Left-ventricular ejection end. Medical controversy. Physiologists. Pressure transient. Pulmonary artery pressure record. Pulmonic valve closure. IEEE Engineering in medicine and biology magazine 21, 5 (2002). FO UPD DENG-II Article