Single and loud S2 in a child with pulmonary artery hypertension
Single and loud S2 in a child with pulmonary artery hypertension
Phonocardiogram recorded at the left upper sternal border in a child with systemic level pulmonary artery hypertension. S2 is single and loud with a prominent pulmonary component.
S2: second heart sound; S1: first heart sound; A2: aortic valve closure sound; P2: pulmonic valve closure sound.
