A large proportion of patients with this condition may have no symptoms and the diagnosis is usually only made after detection of an abnormal electrocardiogram (ECG) that is done for reasons like health screening. However, in rare instances, its first presentation can be sudden cardiac arrest in a young healthy adult.
Symptoms that result from HCM include chest pain, shortness of breath on exertion, palpitations and occasionally, loss of consciousness. Patient can present with arrhythmia, such as atrial fibrillation or congestive heart failure.
