Which vascular change is characteristically seen in hypertensive heart disease affecting the left ventricle?

Which vascular change is characteristically seen in hypertensive heart disease affecting the left ventricle?

• A. Arteriolosclerosis of small coronary arteries
• B. Atherosclerosis of large coronary arteries
• C. Vasculitis of coronary vessels
• D. No vascular changes

Answer: (A)

Chronic pressure overload from hypertension drives the left ventricle to adapt with concentric hypertrophy, increasing wall thickness to normalize wall stress. Alongside this, the coronary microcirculation undergoes arteriolosclerosis—specifically hyaline thickening of the walls of small coronary arteries and arterioles. This narrowing of the microvasculature reduces coronary reserve and can contribute to subendocardial ischemia in the hypertensive heart, making arteriolosclerosis of small coronary vessels the characteristic vascular change in this setting. Large-artery atherosclerosis is more typical of primary coronary artery disease rather than hypertension-related microvascular remodeling; vasculitis would show inflammatory vessel wall changes; and there are indeed vascular changes in hypertension, so saying there are none would be inaccurate.

Chronic pressure overload from hypertension drives the left ventricle to adapt with concentric hypertrophy, increasing wall thickness to normalize wall stress. Alongside this, the coronary microcirculation undergoes arteriolosclerosis—specifically hyaline thickening of the walls of small coronary arteries and arterioles. This narrowing of the microvasculature reduces coronary reserve and can contribute to subendocardial ischemia in the hypertensive heart, making arteriolosclerosis of small coronary vessels the characteristic vascular change in this setting. Large-artery atherosclerosis is more typical of primary coronary artery disease rather than hypertension-related microvascular remodeling; vasculitis would show inflammatory vessel wall changes; and there are indeed vascular changes in hypertension, so saying there are none would be inaccurate.