Left ventricular systolic function monitoring in asymptomatic dialysis patients: a prospective cohort study.
J Am Soc Nephrol
; 17(5): 1460-5, 2006 May.
Article
em En
| MEDLINE
| ID: mdl-16597683
ABSTRACT
Although it is well established that compromised systolic function predicts cardiovascular (CV) complications in symptomatic and asymptomatic patients with ESRD, it still is unknown whether repeated echocardiographic measurements of systolic function in asymptomatic patients with ESRD is useful for monitoring the evolution of cardiomyopathy in these patients. The prognostic value for CV events of changes in systolic function, as measured by midwall fractional shortening (mwFS) in a cohort of 191 dialysis patients, was tested. Echocardiography was performed twice, 17 +/- 2 mo apart. Changes in mwFS (ch-mwFS) that occurred between the second and the first echocardiographic studies then were used to predict CV events during the ensuing 27 +/- 13 mo. After the second echocardiographic study, 85 patients had incident CV events. In a Kaplan-Meier analysis, there was a graded increase in the risk for fatal and nonfatal CV events across ch-mwFS quartiles (P = 0.005). On multivariate Cox regression analysis, ch-mwFS maintained an independent association with CV outcomes. In this analysis, the risk for CV events was 51% lower in patients who manifested an increase in mwFS (hazard ratio 0.49; 95% confidence interval 0.27 to 0.88; P = 0.02) than in those who had a decrease in mwFS. Changes in mwFS have an independent prognostic value for CV events, and periodic echocardiographic studies of systolic function are useful for monitoring asymptomatic dialysis patients.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ecocardiografia
/
Diálise Renal
/
Disfunção Ventricular Esquerda
/
Medição de Risco
/
Falência Renal Crônica
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Am Soc Nephrol
Assunto da revista:
NEFROLOGIA
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Itália