Dynamic Auscultation: A presentation
Heart is a dynamic organ, so any auscultation by default becomes dynamic. Still, what we mean by dynamic auscultation is, to look(hear) carefully at what happens to the sounds and murmurs during different phases of respiration*, posture and induced hemodynamic stress by altering preload, and afterload, etc. (* Some of us may not consider respiratory changes as part of dynamic auscultation, But, it is to be noted even spontaneous respiration is subtle dynamism and is reflected in JVP as well as second sound mobility. While forceful breath-holding or exhalation can dramatically shut down & release venous return from entering the thorax.This is the basis of the most popular maneuver of Valsalva.
I know, dynamic auscultation is a lost art. For fellows, the only issue that seems to bother is to understand the dynamic auscultation in various types of LVOT obstruction, MVPS , and to differentiate aortic from pulmonary regurgitation murmurs, with or without VSD, RVOT/LVOT vascular /Valvular clicks etc
Here is an old presentation (2010) of mine from the archive.
One of the great resources on this topic is from Dr Delman. Hope this book is available. There is one more exclusive atlas by Delman & Stein dynamic auscultation with phonocardiographic and pulse correlation