[Isolated left ventricular non-compaction]

Area of Science:

• Cardiology
• Genetics
• Developmental Biology

Background:

• Isolated left ventricular noncompaction (ILVNC) is a congenital cardiomyopathy resulting from impaired myocardial compaction during fetal development.
• It is characterized by a thickened, spongy myocardium with prominent trabeculations and deep intertrabecular recesses.
• ILVNC is genetically heterogeneous and often overlooked due to subtle echocardiographic findings.

Purpose of the Study:

• To provide a comprehensive review of ILVNC, covering its embryology, genetics, and pathophysiology.
• To highlight the diagnostic challenges and emphasize the importance of echocardiography.
• To discuss clinical features, treatment strategies, and prognosis for patients with ILVNC.

Main Methods:

• Review of existing literature on ILVNC, including embryological, genetic, and clinical studies.
• Analysis of diagnostic criteria and imaging techniques, primarily echocardiography.
• Synthesis of information on management and outcomes.

Main Results:

• ILVNC arises from an arrest in intrauterine myocardial development.
• Echocardiography is the primary diagnostic tool, but missed diagnoses can occur due to imaging limitations or lack of awareness.
• Associated risks include heart failure, thromboembolism, arrhythmias, and potential links to other genetic disorders.

Conclusions:

• Increased awareness and improved echocardiographic techniques are vital for accurate ILVNC diagnosis.
• Early detection facilitates timely management of associated cardiac abnormalities and risks.
• Understanding the genetic basis and familial implications is crucial for screening relatives.