Key result
In patients with hypertrophic cardiomyopathy, apical hypertrophy was associated with the largest negative T waves (15.2 mm), while basal hypertrophy without asymmetric septal hypertrophy was associated with the largest positive T waves (9.3 mm).
Why the study?
Does the distribution of hypertrophy correlate with specific electrocardiographic features in patients with hypertrophic cardiomyopathy?
Population
54 patients with hypertrophic cardiomyopathy. Excluded: conduction disturbances, history of ischemic heart…
Design
Cross-sectional
Authors
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ECG Q/T-wave patterns may reflect regional hypertrophy in HCM; leaves open need for MRI confirmation in routine evaluation.
Cross-Sectional (n=54)
Yes
Does the distribution of hypertrophy correlate with specific electrocardiographic features in patients with hypertrophic cardiomyopathy?
The presence of abnormal Q waves reflects regional hypertrophy at the basal septum, while the configuration of T waves differentiates between basal and apical hypertrophy localization in patients with hypertrophic cardiomyopathy.
Sato et al. (1998) conducted a cross-sectional in Hypertrophic cardiomyopathy (n=54). Distribution of hypertrophy (apical vs basal) vs. Different hypertrophic patterns was evaluated on Maximum voltage for negative T waves (mm). In patients with hypertrophic cardiomyopathy, apical hypertrophy was associated with the largest negative T waves (15.2 mm), while basal hypertrophy without asymmetric septal hypertrophy was associated with the largest positive T waves (9.3 mm).