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Significance of ventricular arrhythmias in systemic hypertension with left ventricular hypertrophy
- Source :
- The American Journal of Cardiology. 69:913-917
- Publication Year :
- 1992
- Publisher :
- Elsevier BV, 1992.
-
Abstract
- Hypertensive patients with the electrocardiographic (ECG) pattern of left ventricular (LV) hypertrophy and strain are at increased risk of sudden death. It has been suggested that ventricular arrhythmias may be responsible. The prevalence and significance of ventricular arrhythmias was therefore studied in 90 hypertensive patients with LV hypertrophy and strain by undertaking 48-hour ambulatory ECG monitoring, ECG signal-averaging and programmed ventricular stimulation. Complex ventricular ectopic activity (Lown grade greater than or equal to 3) was detected in 59 patients (66%). Eleven patients (12%) had episodes of nonsustained ventricular tachycardia. There were no sustained arrhythmias either on ambulatory ECG monitoring or induced by programmed ventricular stimulation. Only 1 patient had ventricular late potentials recorded by the signal-averaged electrocardiogram. Therefore, there was little to suggest an underlying arrhythmogenic substrate in these patients. In conclusion, whereas ventricular arrhythmias occur often in patients with LV hypertrophy associated with systemic hypertension, their significance, if any, remains to be established.
- Subjects :
- Adult
Male
Tachycardia
medicine.medical_specialty
Heart disease
Cardiomegaly
Left ventricular hypertrophy
Ventricular tachycardia
Sudden death
Muscle hypertrophy
Internal medicine
Prevalence
medicine
Humans
cardiovascular diseases
Risk factor
Aged
medicine.diagnostic_test
business.industry
Signal Processing, Computer-Assisted
Middle Aged
medicine.disease
Electrophysiology
Hypertension
Electrocardiography, Ambulatory
cardiovascular system
Cardiology
Female
medicine.symptom
Cardiology and Cardiovascular Medicine
business
Electrocardiography
Subjects
Details
- ISSN :
- 00029149
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- The American Journal of Cardiology
- Accession number :
- edsair.doi.dedup.....e73c87776f47194358b6b712c4798d31