Q wave T wave vector discordance in hypertrophic cardiomyopathy: septal hypertrophy and strain pattern.

Q wave T wave vector discordance in hypertrophic cardiomyopathy: septal hypertrophy and strain pattern.

Hypertrophic cardiomyopathy is a common cause of prominent non-infarctional Q waves. A retrospective analysis of previously published cases confirmed a characteristic Q wave T wave vector discordance in hypertrophic cardiomyopathy. In 41 of 44 cases with predominant Q waves (as part of QS or Qr complexes where Q wave amplitude exceeded R wave height), the T wave was positive, and in all cases w...

Asymmetric septal hypertrophy and hypertrophic cardiomyopathy.

Clinical significance of T-wave alternans in hypertrophic cardiomyopathy.

The clinical significance of T-wave alternans (TWA) in hypertrophic cardiomyopathy (HCM) is unclear, so SV1+RV5 and QT dispersion on 12-lead electrocardiograms (ECG), the parameters of the left ventricle on echocardiography and the family history of HCM and sudden death were investigated in 53 patients with HCM who experienced TWA. The maximal numbers of successive ventricular ectopic beats (ma...

Absent septal q wave and other abnormalities.

Absent septal q wave and other abnormalities" (2005).

Pathological features of hypertrophic cardiomyopathy without asymmetrical septal hypertrophy.

In a heart with hypertrophic cardiomyopathy without asymmetrical septal hypertrophy the number of transmural myocytes, the mean size of myocytes, and the percentage area of interstitial space were similar in the ventricular septum and left ventricular posterior wall, whereas in a reported series of 14 hearts with hypertrophic cardiomyopathy with asymmetrical septal hypertrophy the number of tra...