Cardiac auscultation theory defines specific oscillatory locations (AORTA-PULMONIC-TRICUSPID-MITRAL) and categorizes pathologies based on temporal hemodynamics within the cardiac cycle, specifically distinguishing between systolic ejection phases for stenotic lesions versus regurgitant flow during ventricular filling. The diagnostic framework relies on manipulating preload and afterload conditions to alter murmur intensity; generally increased blood volume or pressure increases loudness by enhancing turbulent flow across abnormal valves, with physiological exceptions occurring in Hypertrophic Obstructive Cardiomyopathy (HOCM) and Mitral Valve Prolapse where these maneuvers alleviate mechanical obstruction. This concept operates within the domain of cardiovascular physiology to enable non-invasive differentiation between valvular pathologies through acoustic analysis of pressure gradients and flow dynamics.
Cardiac auscultation theory defines specific oscillatory locations (AORTA-PULMONIC-TRICUSPID-MITRAL) and categorizes pathologies based on temporal hemodynamics within the cardiac cycle, specifically …