Rupture of the Papillary Muscles in the Left Ventricle May

Question

Rupture of the papillary muscles in the left ventricle may result in
A) pulmonary valve regurgitation.
B) mitral valve prolapse.
C) tricuspid regurgitation.
D) tricuspid prolapse.
E) aortic valve prolapse.

Accepted Answer

Rupture of the papillary muscles in the left ventricle can lead to a sudden and severe form of mitral valve prolapse. The papillary muscles anchor the leaflets of the mitral valve to the wall of the left ventricle, and when they rupture, the mitral valve may suddenly fall back into the left atrium, leading to a sudden onset of mitral regurgitation. This can cause acute heart failure and may require emergency surgical intervention. The other choices listed do not accurately reflect the consequences of papillary muscle rupture.