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. 2025 Jun 27;77(5):375–379. doi: 10.1016/j.ihj.2025.06.008

Table 1.

Clinical profile and electrocardiographic abnormalities of 150 hypertrophic cardiomyopathy patients.

Variable Mean/n (%)
Age (mean) 46.7 years
Male gender (percent) 80 %
Age at symptom onset (mean) 44.6 years
Dyspnea 72 %
Angina 48 %
Syncope 21 %
NYHA Class
I 28 (18.6 %)
II 105 (70 %)
III 17 (11.3 %)
Positive family history 16 (10.6 %)
Left Bundle Branch Block 4 (2.7 %)
Right Bundle Branch Block 3 (2 %)
Premature ventricular contraction 18 (12 %)
Atrial Fibrillation 17 (11.3 %)
NSVT 21 (14 %)
Ectopic atrial tachycardia 3 (2 %)
Accessory pathway mediated SVT 3 (2 %)

HCM: hypertrophic cardiomyopathy; NYHA: New York Heart Association functional classification; NSVT: non sustained ventricular tachycardia; SVT: supraventricular tachycardia.