Which of the following statement is true regarding opening snap?
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
It is a high-pitched diastolic sound
It is due to opening of stenosed aoic valve
It indicates pulmonary aerial hypeension
It precedes the aoic component of second hea sound
All India exam