A 65-year-old patient with moderate aortic stenosis develops rapid, irregular tachycardia with hypotension and ST-segment depression. Which treatment is most appropriate for myocardial ischemia?

A 65-year-old patient with moderate aortic stenosis develops rapid, irregular tachycardia with hypotension and ST-segment depression. Which treatment is most appropriate for myocardial ischemia?

• A. Electrical Cardioversion
• B. Esmolol
• C. Nitroglycerin
• D. Verapamil

Answer: (A)

The main idea here is how to rapidly restore stability in a patient with a hemodynamically unstable tachyarrhythmia and an underlying aortic stenosis. When someone is rapidly tachycardic, irregular, hypotensive, and showing signs of myocardial ischemia, the priority is to quickly reestablish a coordinated rhythm to improve cardiac output and perfusion. Synchronized electrical cardioversion delivers an immediate, controlled shock that converts the chaotic rhythm to a normal rhythm, alleviating the loss of effective cardiac output and reducing ischemia risk. In the setting of aortic stenosis, preserving forward flow is essential, and using drugs to slow the heart rate or reduce contractility (like beta-blockers or calcium channel blockers) or vasodilators (like nitroglycerin) can worsen hypotension and drop cardiac output, making the situation worse. Therefore, the most appropriate management is immediate synchronized electrical cardioversion to stabilize the patient and improve myocardial perfusion.

The main idea here is how to rapidly restore stability in a patient with a hemodynamically unstable tachyarrhythmia and an underlying aortic stenosis. When someone is rapidly tachycardic, irregular, hypotensive, and showing signs of myocardial ischemia, the priority is to quickly reestablish a coordinated rhythm to improve cardiac output and perfusion. Synchronized electrical cardioversion delivers an immediate, controlled shock that converts the chaotic rhythm to a normal rhythm, alleviating the loss of effective cardiac output and reducing ischemia risk. In the setting of aortic stenosis, preserving forward flow is essential, and using drugs to slow the heart rate or reduce contractility (like beta-blockers or calcium channel blockers) or vasodilators (like nitroglycerin) can worsen hypotension and drop cardiac output, making the situation worse. Therefore, the most appropriate management is immediate synchronized electrical cardioversion to stabilize the patient and improve myocardial perfusion.