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Prognostic value of ambulatory electrocardiography monitoring in patients with dilated cardiomyopathy.

Abstract：

BACKGROUND:Performance of ambulatory electrocardiography (AECG) may provide data useful for counseling patients regarding prognosis and for selecting potential patients for defibrillator implantation, but this practice remains controversial. METHODS:We reviewed clinical and AECG data on 355 patients diagnosed with dilated cardiomyopathy (DCM). Predictors of survival were identified in a multivariable analysis using a Cox proportional hazard model. Ability of the derived model to predict outcomes was tested using a second cohort of 144 patients. RESULTS:Nonsustained ventricular tachycardia (NSVT) was present on AECG in 31% of the subjects. Ambulatory electrocardiography provided 3 independent predictors of mortality: NSVT (relative risk [RR], 1.63; 95% confidence interval [CI], 1.06-2.51; P = .02), mean heart rate (RR, 1.03; 95% CI, 1.02-1.04; P = .0001), and heart rate range (RR, 0.990; 95% CI, 0.982-0.997; P = .008). Performance of the multivariable model was validated (area under the curve = 0.83) on a second cohort of patients. CONCLUSION:Ambulatory electrocardiography provides useful prognostic information in patients with DCM, identifying 3 independent predictors of mortality.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Baker RL,Koelling TM

doi

10.1016/j.jelectrocard.2004.09.007

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

64-8

issue

1

eissn

0022-0736

issn

1532-8430

pii

S0022073604001566

journal_volume

38

pub_type

杂志文章

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