Question:hard
A patient shows a pattern of myocardial stunning that does not match the territory of a single coronary artery on the ECG. What is the most likely diagnosis?
A patient shows a pattern of myocardial stunning that does not match the territory of a single coronary artery on the ECG. What is the most likely diagnosis?
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Reversible apical stunning that crosses coronary territories suggests a stress-induced cause.
Updated On: Jun 24, 2026
- Takotsubo cardiomyopathy
- Restrictive cardiomyopathy
- Brugada cardiomyopathy
- Pericardial disease
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: When a wall of the heart is stunned but the dysfunction spreads beyond what one coronary artery supplies, you should suspect a non-ischemic, stress-related cause.
Step 2: Takotsubo cardiomyopathy is exactly that - an acute, reversible stunning of the heart, classically with ballooning of the apex, that ignores normal coronary boundaries.
Step 3: The distractors do not fit: restrictive cardiomyopathy is a problem of filling, Brugada is an electrical channel disorder, and pericardial disease affects the sac around the heart rather than producing regional stunning.
\[\boxed{\text{Takotsubo cardiomyopathy}}\]
Step 2: Takotsubo cardiomyopathy is exactly that - an acute, reversible stunning of the heart, classically with ballooning of the apex, that ignores normal coronary boundaries.
Step 3: The distractors do not fit: restrictive cardiomyopathy is a problem of filling, Brugada is an electrical channel disorder, and pericardial disease affects the sac around the heart rather than producing regional stunning.
\[\boxed{\text{Takotsubo cardiomyopathy}}\]
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