What is the typical auscultatory finding associated with mitral regurgitation?

The typical auscultatory finding associated with mitral regurgitation is a holosystolic murmur. This type of murmur is characterized by its uniform sound that lasts throughout the entire systole, beginning with the onset of the first heart sound (S1) and continuing until the closure of the aortic valve, leading to the second heart sound (S2). The murmur is often described as a "blowing" sound and is best heard at the apex of the heart, which is located in the left lateral decubitus position.

In mitral regurgitation, there is backflow of blood from the left ventricle into the left atrium during systole due to improper closure of the mitral valve. This backflow causes turbulence in blood flow, which produces the holosystolic murmur. It is commonly associated with conditions such as mitral valve prolapse, rheumatic heart disease, and ischemic heart disease.

Other auscultatory findings like a harsh systolic ejection murmur or a diastolic rumble are linked to different cardiac issues. A diastolic rumble, for example, is typically associated with mitral stenosis and not mitral regurgitation. Fragmented heart sounds