What is the nature of the ‘second heart sound’ in Mitral Stenosis?
What is the nature of the ‘second heart sound’ in Mitral Stenosis?
Nature of the second heart sound -MS
Nature of the second heart sound (S2) depends upon the severity of pulmonary hypertension.
- As pulmonary artery pressure increases – Initially the intensity of P2 increases
- As pulmonary artery pressure increases further – splitting of the S2 narrows as P2 becomes earlier
- As pulmonary artery pressure increases further – then S2 becomes single and loud