Related Experiment Video
Updated: Aug 15, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
A Case Report on the Atypical Presentation of Hypertrophic Cardiomyopathy (HOCM) in a 19-Year-Old Female
Ahmed Alhazmi1, Shahad B Almatrafi2, Rahaf A Abdulwahab3
1Cardiology, King Abdullah Medical City, Makkah, SAU.
Insights
Atypical hypertrophic cardiomyopathy (HOCM) can present as biventricular hypertrophy, even in asymptomatic patients without a family history. Early awareness is crucial for preventing sudden cardiac death (SCD) associated with this rare genetic disorder.
Area of Science:
- Cardiology
- Genetics
- Internal Medicine
Background:
- Atypical hypertrophic cardiomyopathy (HOCM) is a rare genetic disorder affecting the left ventricle.
- HOCM is a known risk factor for sudden cardiac death (SCD).
Abstract:
Atypical hypertrophic cardiomyopathy (HOCM) is a relatively rare genetic disorder that can affect the left ventricular system. HOCM can lead to various cardiac issues such as sudden cardiac death (SCD). We report a case of a 19-year-old female who was referred to a cardiology clinic after presenting with bi-ventricular hypertrophy on an echocardiogram (ECHO). Results from screening tests for infiltrative diseases and an iron panel came negative. The patient was asymptomatic, with no functional limitations and no family history of any cardiac disease or sudden death. In conclusion, HOCM can present with an atypical pattern, such as biventricular hypertrophy, and has been linked to SCD; therefore, it is important to be aware of this condition and take the necessary precautions to prevent it.
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy V: Interprofessional Care
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy IV: Restrictive Cardiomyopathy
Myocarditis II: Clinical Features and Diagnostic Tests

