Following a myocardial infarction, which medication is preferred to treat hypertension?

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Multiple Choice

Following a myocardial infarction, which medication is preferred to treat hypertension?

After a myocardial infarction, reducing sympathetic drive and myocardial oxygen demand is crucial to prevent arrhythmias and limit remodeling, which translates into a real survival benefit. A beta-blocker accomplishes this by slowing the heart rate and lowering blood pressure, which reduces wall stress and oxygen consumption. This mortality benefit after MI is well established, so beta-blockade is the favored choice for treating hypertension in the post-MI patient, provided there are no contraindications. In practice, an ACE inhibitor is also very helpful, especially if there is left ventricular dysfunction or signs of heart failure, because it prevents remodeling and further improves survival. However, when selecting a single antihypertensive agent specifically for post-MI blood pressure control, the beta-blocker stands out for its proven impact on mortality. Calcium channel blockers are not preferred as the primary post-MI antihypertensive for mortality benefit, and some non-dihydropyridine agents can depress cardiac function in certain patients. Thiazide diuretics lower blood pressure but do not carry the same post-MI survival advantage as beta-blockers.

After a myocardial infarction, reducing sympathetic drive and myocardial oxygen demand is crucial to prevent arrhythmias and limit remodeling, which translates into a real survival benefit. A beta-blocker accomplishes this by slowing the heart rate and lowering blood pressure, which reduces wall stress and oxygen consumption. This mortality benefit after MI is well established, so beta-blockade is the favored choice for treating hypertension in the post-MI patient, provided there are no contraindications.

In practice, an ACE inhibitor is also very helpful, especially if there is left ventricular dysfunction or signs of heart failure, because it prevents remodeling and further improves survival. However, when selecting a single antihypertensive agent specifically for post-MI blood pressure control, the beta-blocker stands out for its proven impact on mortality.

Calcium channel blockers are not preferred as the primary post-MI antihypertensive for mortality benefit, and some non-dihydropyridine agents can depress cardiac function in certain patients. Thiazide diuretics lower blood pressure but do not carry the same post-MI survival advantage as beta-blockers.

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