Document Detail


Prediction of cardiac events after uncomplicated myocardial infarction by cross-sectional echocardiography during transesophageal atrial pacing.
MedLine Citation:
PMID:  2365537     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Atrial pacing can safely be utilized shortly after myocardial infarction. To evaluate the prognostic value of wall motion abnormalities induced by such pacing 83 consecutive patients with recent uncomplicated myocardial infarction underwent transthoracic cross-sectional echocardiography during transesophageal atrial pacing and upright bicycle exercise stress test. Patients were followed-up for 14 +/- 5 months. During the atrial pacing and the echocardiography, patients were defined at high risk if abnormalities of wall motion were detected in left ventricular regions remote from the infarcted area. Then, during the exercise stress test, high risk patients were those with ST segment depression greater than or equal to 1 mm. On the other hand, patients were considered to be at low risk if they had no abnormalities of wall motion during atrial pacing in remote regions or, in the case of the stress test, if they did not develop ST depression greater than or equal to 1 mm. Of the 83 patients, 21 had major cardiac events during the period of follow-up. Cardiac events occurred in 15/23 (65%) and 5/60 (8%, P less than 0.001) patients assigned to the groups adjudged to be at high and low risk, respectively, on the basis of echocardiographic results. Exercise testing was less reliable in identifying patients at risk of future cardiac events. Major events occurred in only 6 of the 19 patients with a positive stress test (32%, P less than 0.05 vs positive stress echocardiography) and in 14 of the 64 patients with a negative exercise stress test (22%, P = NS vs positive exercise stress test, P less than 0.05 vs negative atrial pacing echocardiography).
Authors:
S Iliceto; C Caiati; A Ricci; A Amico; G D'Ambrosio; G M Ferri; M Izzi; R Lagioia; P Rizzon
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of cardiology     Volume:  28     ISSN:  0167-5273     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  1990 Jul 
Date Detail:
Created Date:  1990-08-13     Completed Date:  1990-08-13     Revised Date:  2006-07-12    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  95-103     Citation Subset:  IM    
Affiliation:
Division of Cardiology, University of Bari, Italy.
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MeSH Terms
Descriptor/Qualifier:
Cardiac Pacing, Artificial*
Echocardiography*
Exercise Test
Female
Follow-Up Studies
Humans
Male
Middle Aged
Myocardial Contraction / physiology
Myocardial Infarction / complications,  diagnosis*
Prognosis
Risk Factors
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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