Soft S1 is seen in all except:
MS: | Trans-valvular gradient, faster opening and faster elastic recoil - l/t loud S1 Option A- Causes bradycardia l/t soft S1 Option B- Blood comes black in LV, so increased volume in L.V during diastole d/t defective aoic valve closure blood comes back into the ventricle.The gradient stas reducing so l/t soft S1 sound. Option C -S1 become Soft once valve get calcified.
First degree hea block
AR
Calcified valve
Mild MS
Valvular hea diseases