Prognostic implications of transient left ventricular cavitary dilation during exercise and dipyridamole-thallium imaging.
Can J Cardiol
; 10(2): 259-62, 1994 Mar.
Article
em En
| MEDLINE
| ID: mdl-8143228
ABSTRACT
OBJECTIVE:
To determine the prognostic implication of exercise and dipyridamole-induced transient left ventricular cavitary dilation (TLVD).DESIGN:
TLVD was observed and a follow-up obtained in 61 patients after exercise and in 62 patients following dipyridamole infusion. PATIENTS There was no statistical difference between groups in terms of sex, history of hypertension, diabetes, renal failure, previous myocardial infarction, severity of angina syndrome, congestive heart failure, resting electrocardiographic (ECG) abnormalities, clinical or ECG signs of ischemia during stress, number of reversible perfusion defects on thallium images or duration of follow-up (21 months).RESULTS:
Dipyridamole patients were slightly older (64 versus 57 years) and displayed more thallium redistribution (P = 0.002). After a mean follow-up of 21 months, both fatal and nonfatal (myocardial infarction or cardiac death) cardiac events were more frequent in the dipyridamole group (50% versus 9%, P = 0.0001).CONCLUSIONS:
Patients with dipyridamole-induced TLVD are at greater risk than those with exercise-induced TLVD at the authors' institution.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Radioisótopos de Tálio
/
Hipertrofia Ventricular Esquerda
/
Doença das Coronárias
/
Dipiridamol
/
Teste de Esforço
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Can J Cardiol
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
1994
Tipo de documento:
Article