Which of the following statement is true regarding opening snap?
Correct Answer: It is a high-pitched diastolic sound
Description: The high-pitched opening snap (OS) of MS occurs after a very sho interval after the second hea sound. The A2-OS interval is inversely propoional to the height of the left atrial-left ventricular diastolic pressure gradient. The intensity of both S1 and the OS of MS decreases with progressive calcification and rigidity of the anterior mitral leaflets.Ref: Harrison; 19th edition; Page no: 1447
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