Hypertrophic Obstructive Cardiomyopathy (HOCM)

Hypertrophic Obstructive Cardiomyopathy (HOCM)Created OnApril 19, 2020Last Updated OnOctober 28, 2020byadmin You are here: Main Clinical Examination Hypertrophic Obstructive Cardiomyopathy (HOCM) < All Topics Table of Contents A differentials of tall R wave in V1 One of the most common inherited cardiac disorders (affecting ~ 1 in 500 people) and is the number one cause of sudden cardiac death in young athletes Chief abnormality associated with HCM is left ventricular hypertrophy (LVH),results in increased precordial voltages and non-specific ST segment and T-wave abnormalities ECG abnormalities present in 85-93% High left ventricular voltages Left atrial enlargement is most common Tall R wave in V1 (mimics posterior MI) Deep narrow Q waves in inferior, lateral leads Definitive diagnosis – Doppler ECHO Can also help to assess severity of obstruction at rest and with provocative manoeuvres Classic HCM pattern with asymmetrical septal hypertrophy Voltage criteria for left ventricular hypertrophy. Deep narrow Q waves < 40 ms wide in the lateral leads I, aVL and V5-6

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