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Is it double chambered left ventricle? Unveiling the mirage using cardiac magnetic resonance imaging
Digvijay D Nalawade1, Partik S Wadhokar1, Ajitkumar Jadhav1
1Department of Cardiology, Dr D Y Patil Medical College Hospital & Research Centre, Pimpri, Pune, India.
Insights
Double chambered left ventricle (DCLV), a rare congenital heart defect, is often incidentally found. This case highlights how cardiac imaging can misdiagnose DCLV, revealing an anomalous muscle bundle instead.
Area of Science:
- Cardiology
- Congenital Heart Disease
Background:
- Double chambered left ventricle (DCLV) is a rare congenital anomaly often diagnosed incidentally with a generally benign prognosis.
- Accurate differentiation of DCLV from other cardiac abnormalities is critical due to potential clinical implications.
- Limited data exists on the natural history, prognosis, complications, and treatment of DCLV.
Approach:
- This case report details the evaluation of a young male presenting with palpitations.
- Initial diagnosis of DCLV was made using 2D echocardiography.
- Cardiac magnetic resonance imaging (CMR) was performed for further characterization.
Key Points:
- CMR findings did not confirm DCLV but identified an anomalous apical basal muscle bundle (ABMB).
- Atypical left ventricular (LV) trabecularization was observed, mimicking DCLV.
- This case underscores the importance of advanced imaging in differentiating DCLV from similar cardiac morphologies.
Conclusions:
- Advanced cardiac imaging like CMR is essential for accurate diagnosis and differentiation of DCLV.
- Misdiagnosis of DCLV can occur, necessitating careful interpretation of imaging findings.
- Further research is needed to clarify the clinical significance of conditions mimicking DCLV.
Abstract:
Double chambered left ventricle (DCLV) is an uncommon congenital heart condition typically identified incidentally, with the majority of patients showing no symptoms and experiencing a benign course. It is crucial to differentiate DCLV from other abnormalities like diverticulum or aneurysm, which can have significant clinical implications. Due to the limited available data, our understanding of the natural progression, prognosis, complications, and treatment options for this rare condition is poorly defined. A review of the medical literature reveals the use of various overlapping terms when describing DCLV. In our case report, we present the evaluation of a young male who sought medical attention for palpitations. Initially, DCLV was diagnosed through 2D echocardiography. However, subsequent cardiac magnetic resonance imaging (CMR) did not confirm the presence of two distinct chambers but instead revealed an anomalous apical basal muscle bundle (ABMB) and atypical left ventricular (LV) trabecularization that resembled DCLV.
