Incidence, clinical characteristics and prognostic significance of supraventricular tachyarrhythmias in acute myocardial infarction

The study of incidence and prognostic significance of supraventricular tachyarrhythmias in patients with acute myocardial infarction. Prospective study on 1,239 patients consecutively admitted because of a diagnosis of acute myocardial infarction. Clinical characteristics, indexes of myocardial infa...

Full description

Saved in:

Bibliographic Details
Published in:	Revista española de cardiologia Vol. 52; no. 9; pp. 647 - 655
Main Authors:	Galcerá Tomás, J, Melgarejo Moreno, A, García Alberola, A, Baranco Polo, M, Martínez-Lozano Aranaga, F, Rodríguez Fernández, S
Format:	Journal Article
Language:	Spanish
Published:	Spain 01-09-1999
Subjects:	Age Factors Aged Atrial Fibrillation - diagnosis Atrial Fibrillation - epidemiology Atrial Fibrillation - etiology Atrial Flutter - diagnosis Atrial Flutter - epidemiology Atrial Flutter - etiology Female Follow-Up Studies Humans Incidence Logistic Models Male Middle Aged Myocardial Infarction - complications Myocardial Infarction - mortality Prognosis Prospective Studies Risk Factors Tachycardia, Supraventricular - diagnosis Tachycardia, Supraventricular - epidemiology Tachycardia, Supraventricular - etiology Time Factors
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The study of incidence and prognostic significance of supraventricular tachyarrhythmias in patients with acute myocardial infarction. Prospective study on 1,239 patients consecutively admitted because of a diagnosis of acute myocardial infarction. Clinical characteristics, indexes of myocardial infarction and complications were analysed. Supraventricular tachyarrhythmias were observed in 116 (9.3%) cases: atrial fibrillation in 96 (7.7%); atrial tachycardia in 15 (1.2%); and atrial flutter in the remaining five cases (0.4%). Patients with supraventricular tachyarrhythmias were older, and presented higher heart rate, lower blood pressure, a higher number of affected leads in ECG, and higher Killip class. A higher creatine kinase peak and a lower left ventricular ejection fraction were associated with the presence of supraventricular tachyarrhythmias. Predictors of supraventricular tachyarrhythmias were: age, systolic blood pressure, number of affected leads in ECG, and congestive heart failure at admission. The following complications were found more frequently in patients with supraventricular tachyarrhythmias: bundle-branch block, complete A-V block, ventricular tachycardia, ventricular fibrillation; heart failure; stroke; and mortality, in-hospital 18.1% vs 11.1% (p < 0.05) and one-year, 38.7% vs 18.4% (p < 0.001). The logistic regression model showed that supraventricular tachyarrhythmias had no independent prognostic value on mortality. The appearance of supraventricular tachyarrhythmias during the acute phase of myocardial infarction is a relatively frequent finding, often associated with older age and larger infarctions. Supraventricular tachyarrhythmias are accompanied by higher short and long-term mortalities, although there is no independent prognostic significance.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0300-8932
DOI:	10.1016/S0300-8932(99)74984-5