Usefulness of prolonged QRS duration to identify high-risk ischemic cardiomyopathy patients with syncope and inducible ventricular tachycardia
| Autor: | Sei Iwai, Kenneth M. Stein, Amit B Guttigoli, Ravi K. Yarlagadda, Steven M. Markowitz, Bindi K. Shah, Brian F. Wilner, Suneet Mittal, Bruce B. Lerman |
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| Rok vydání: | 2004 |
| Předmět: |
Male
medicine.medical_specialty Heart disease Ischemia Cardiomyopathy Myocardial Ischemia Ventricular tachycardia Syncope Coronary artery disease QRS complex Ventricular Dysfunction Left Predictive Value of Tests Internal medicine medicine Humans cardiovascular diseases Aged Proportional Hazards Models Ischemic cardiomyopathy Chi-Square Distribution business.industry medicine.disease Signal-averaged electrocardiogram Defibrillators Implantable Anesthesia cardiovascular system Cardiology Tachycardia Ventricular Female Cardiology and Cardiovascular Medicine business Electrophysiologic Techniques Cardiac Follow-Up Studies |
| Zdroj: | The American journal of cardiology. 95(3) |
| ISSN: | 0002-9149 |
| Popis: | We evaluated 61 consecutive patients who had coronary artery disease, decreased left ventricular function, and syncope and underwent implantation of a cardioverter-defibrillator because sustained ventricular tachycardia was inducible at electrophysiologic testing. During a follow-up of 3.0 +/- 1.8 years, 23 patients (38%) developed ventricular tachycardia. Prolonged QRS duration (/=120 ms) was the only significant predictor of arrhythmia. The 1- and 2-year rates without ventricular arrhythmia were 82% and 77%, respectively, in patients whose QRS duration was120 ms. In contrast, 1- and 2-year rates without ventricular arrhythmia were only 64% and 51%, respectively, in patients whose QRS duration was/=120 ms (risk ratio 3.7, 95% confidence interval 1.4 to 9.8, p = 0.0092). |
| Databáze: | OpenAIRE |
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