Non-compaction on echocardiography and autopsy

Area of Science:

• Cardiology
• Pathology
• Genetics

Background:

• Chronic heart failure in an 80-year-old woman was linked to cardiomyopathy and left ventricular non-compaction (LVNC).
• LVNC, also known as left ventricular hypertrabeculation, affects the apex, lateral, and posterior walls of the heart.
• The condition was diagnosed via echocardiography shortly before the patient's death.

Observation:

• Autopsy revealed a distinct meshwork of thin and thick, red and white threads within the myocardium.
• Echocardiography successfully identified the location of the non-compaction.
• However, echocardiography failed to detect the fine meshwork structure and differentiate myocardial layers.

Findings:

• The study highlights limitations of echocardiography in fully characterizing the myocardial structure in cases of LVNC.
• Autopsy provided a more detailed view of the pathological myocardial architecture.
• The patient's cardiomyopathy was retrospectively attributed to cardiac involvement in metabolic myopathy.

Implications:

• This case underscores the association between non-compaction, metabolic myopathy, and neuromuscular disorders.
• Accurate diagnosis and characterization of LVNC may require advanced imaging or integrated diagnostic approaches.
• Understanding the detailed myocardial structure in LVNC is crucial for managing heart failure and associated conditions.