The signal-averaged electrocardiogram is of limited value in patients with bundle branch block and dilated cardiomyopathy in predicting inducible ventricular tachycardia or death

The American Journal of Cardiology
B Brembilla-PerrotP Houplon

Abstract

An abnormal signal-averaged electrocardiogram (SAECG) has predictive value for arrhythmic events in patients with idiopathic dilated cardiomyopathy and a normal conduction. The purpose of this study was to investigate whether the presence of a complete bundle branch block (BBB) affects prognostic information of the SAECG. We prospectively obtained SAECGs in 128 patients with idiopathic dilated cardiomyopathy. Forty-three of them had BBB and 85 had a normal QRS duration. According to their clinical history and results of ventricular programmed stimulation, patients were divided into 4 groups: (1) group IA with BBB and ventricular tachycardia (VT) (n = 18); (2) group IB with BBB but without VT (n = 25); (3) group IIA without BBB but with VT (n = 40); (4) group IIB without BBB and without VT (n = 45). Patients were compared with 129 patients without heart disease and without VT. Fifty-seven of them had BBB (group III) and 72 had normal conduction (group IV). The filtered QRS duration was longer in group IB than in group III (175 +/- 21 vs 149 +/- 16 ms, p <0.001), and in group IIB than in group IV (111 +/- 19 vs 96 +/- 12 ms, p <0.05). QRS duration was similar in groups IA and IB (176 +/- 24 vs 175 +/- 21 ms) but longer in group I...Continue Reading

References

Apr 1, 1991·American Heart Journal·B Brembilla-PerrotY Juillière
Jun 1, 1988·The American Journal of Cardiology·T A BuckinghamH L Kennedy
Sep 1, 1984·Geriatrics·C R Webb

❮ Previous
Next ❯

Citations

Feb 19, 2013·Annals of Nuclear Medicine·Masateru TakigawaYoshio Ishida
Aug 4, 2010·Circulation Journal : Official Journal of the Japanese Circulation Society·Masateru TakigawaShiro Kamakura
Jul 10, 2003·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Khurram NasirHugh Calkins
Aug 18, 2005·Annales de cardiologie et d'angéiologie·Y Juillière
Oct 28, 2008·Pacing and Clinical Electrophysiology : PACE·Beatrice Brembilla-PerrotYves Juillière
Feb 16, 2012·Circulation. Arrhythmia and Electrophysiology·G Stuart MendenhallDavid Schwartzman
Aug 12, 1999·Journal of Cardiovascular Pharmacology·J G Cleland, J McGowan
Jan 20, 2004·American Journal of Cardiovascular Drugs : Drugs, Devices, and Other Interventions·J L Merino
Mar 4, 2020·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Borislav DinovKerstin Bode
Mar 1, 2000·Journal of Cardiovascular Electrophysiology·L EckardtM Borggrefe

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.

Cardiovascular Diseases: Risk Factors

Cardiovascular disease is a significant health concern. Risk factors include hypertension, obesity, dyslipidemia and smoking. Women who are postmenopausal are at an increased risk of heart disease. Here is the latest research for risk factors of cardiovascular disease.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

Cardiomyopathy

Cardiomyopathy is a disease of the heart muscle, that can lead to muscular or electrical dysfunction of the heart. It is often an irreversible disease that is associated with a poor prognosis. There are different causes and classifications of cardiomyopathies. Here are the latest discoveries pertaining to this disease.