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[Myocardial infarct with a normal coronary angiogram]
Insights
Even with clear myocardial infarction signs, coronary arteries may appear healthy. Silent myocarditis should be considered in differential diagnosis, even with subtle symptoms, prompting further diagnostic tests.
Area of Science:
- Cardiology
- Pathology
Background:
- Myocardial infarction diagnosis typically relies on clinical signs, ECG, and lab findings.
- Coronary arteriography and morphological studies are standard for assessing coronary artery health.
Observation:
- In a subset of patients presenting with clear-cut myocardial infarction, arteriography and morphology revealed healthy coronary arteries.
- This discrepancy suggests alternative underlying pathologies despite apparent infarction indicators.
Findings:
- The study highlights cases where myocardial infarction indicators are present, but coronary arteries remain unaffected.
- Silent myocarditis is proposed as a key differential diagnosis in such scenarios.
Implications:
- Clinicians should consider silent myocarditis even with minimal or absent symptoms when infarction is suspected but arteriography is normal.
- Further diagnostic procedures are recommended to accurately diagnose the cause of myocardial infarction symptoms in these atypical cases.
Abstract:
In this paper evidence is presented that in few patients with clear cut myocardial infarction as judged by physical signs, ECG and laboratory findings, the arteriography and morphology still may indicate healthy, unaffected coronary arteris. In those cases first of all the differential diagnosis has to include a silent myocarditis by whatever origin. This assumption may also be correct, if there are no or only few signs for this disease. Extensive diagnostic precedures should be performed under those circumstances.