Question

Pathologies that may result in a left ventricular pressure overload include all the following EXCEPT:

A. Discrete subaortic stenosis
B. Mitral valve stenosis
C. Systemic hypertension
D. Valvular aortic stenosis

Answer 1

Pathologies resulting in left ventricular pressure overload include discrete subaortic stenosis, systemic hypertension, and valvular aortic stenosis, while mitral valve stenosis is not a cause of this condition.

Step-by-step explanation:

Pathologies that may result in a left ventricular pressure overload include discrete subaortic stenosis, systemic hypertension, and valvular aortic stenosis. These conditions increase resistance which subsequently increases the afterload, requiring the left ventricle to exert more force to pump blood into the systemic circulation.

Notably, mitral valve stenosis affects the inflow into the left ventricle from the left atrium, but it is not a cause of left ventricular pressure overload; instead, it leads to a volume overload of the atrium and a subsequent increase in the pressure in the pulmonary circulation.