Key result
TTE and CMR detect isolated RVOT obstruction caused by crista supraventricularis hypertrophy.
Why the study?
Biventricular outflow obstruction in hypertrophic cardiomyopathy is uncommon, and isolated right ventricular outflow obstruction without resting or provocable left ventricular cavity pressure gradients is a rare variant.
Case Report (n=1)
Highlights a rare variant of hypertrophic cardiomyopathy with isolated right ventricular outflow obstruction that can be effectively detected using transthoracic echocardiography and cardiac magnetic resonance imaging.
Alerts clinicians to rare isolated RVOT obstruction from crista hypertrophy; leaves open prevalence and management implications.
Biventricular outflow obstruction in hypertrophic cardiomyopathy is an uncommon phenotype. A rare variant is that with isolated right ventricular outflow obstruction without resting or provocable pressure gradients within the left ventricular cavity. We describe a case of hypertrophic cardiomyopathy with isolated obstruction of right ventricular outflow tract wherein transthoracic echocardiography and cardiac magnetic resonance imaging were able to detect right ventricular obstruction caused by hypertrophy of septal and parietal muscle bundles of crista supraventricularis. The relevant literature is reviewed.
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Mohan et al. (2019) conducted a case report in Hypertrophic cardiomyopathy with isolated right ventricular outflow obstruction (n=1). Transthoracic echocardiography and cardiac magnetic resonance imaging was evaluated on Detection of right ventricular obstruction. Transthoracic echocardiography and cardiac magnetic resonance imaging successfully detected isolated right ventricular outflow obstruction caused by hypertrophy of the crista supraventricularis.
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