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[Aberrant papillary muscle causes wall motion alterations: diagnostic implications]

R Mingrone¹, A Taccola

¹Servizio Di Cardioangiologia, Fondazione S. Maugeri, Pavia.

Giornale Italiano Di Cardiologia

|December 1, 1996

Summary

An aberrant papillary muscle in the left ventricle can mimic myocardial infarction. This case highlights the importance of advanced echocardiography in differentiating structural abnormalities from ischemic events.

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Area of Science:

Cardiology
Cardiac Imaging
Clinical Case Study

Background:

Myocardial infarction diagnosis typically relies on ECG and echocardiography.
Septal akinesia and reduced systolic thickening are key indicators of infarction.

Observation:

A 77-year-old man presented with ECG and echocardiographic findings suggestive of septal myocardial infarction.
Further echocardiography revealed an aberrant papillary muscle in the left ventricle causing dyskinetic wall motion.

Findings:

The aberrant papillary muscle, originating from the anterior-septum and extending to the lateral wall, induced septal-apical segment dyskinesia.
Myocardial perfusion scintigraphy and exercise testing ruled out ischemic events, despite initial infarction indicators.

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Implications:

Aberrant papillary muscles can mimic myocardial infarction, leading to potential misdiagnosis.
Advanced echocardiographic techniques are crucial for accurate differentiation of structural anomalies from ischemic heart disease.