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J Am Soc Nephrol. 1995 Jun;5(12):2024-31.

The prognostic importance of left ventricular geometry in uremic cardiomyopathy.

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1
Division of Nephrology, Memorial University, St John's, Newfoundland, Canada.

Abstract

The objective of this study was to determine the effect of left ventricular (LV) mass, volume, and mass-to-volume ratio on mortality in chronic dialysis patients. The Design was a multicenter, prospective inception cohort study with a median follow-up of 41 months. The Setting was three university-affiliated nephrology units. A total of 433 patients who (1) survived > 6 months from the start of ESRD therapy and (2) had a technically satisfactory baseline echocardiogram were studied. Measurements included a baseline clinical, laboratory and echocardiographic assessment. LV hypertrophy was present in 74% and LV dilation was present in 36% of patients. In patients with normal cavity volume (< or = 90 mL/m2) and normal systolic function, high LV mass index (> 120 g/m2) and mass-to-volume ratios (> 2.2 g/mL) were independently associated with late mortality (> 2 yr after starting dialysis therapy). After adjusting for baseline age, diabetes, and ischemic heart disease, the relative risk for the former was 3.29 and for the latter was 2.24. Cavity volume was of no prognostic significance in this group. In patients with LV dilation and normal systolic function, high cavity volume (> 120 mL/m2) and low mass-to-volume ratio (< 1.8 mL/m2) were independently associated with late mortality, the relative risk in the former being 17.14 and the latter being 4.27. LV mass index was of no prognostic significance in this group. The baseline echocardiographic classification, based on LV mass and cavity volume, was the strongest predictor of late mortality, after adjusting for age, gender, diabetes mellitus, coronary artery disease, angina pectoris, chronic hypertension, and hemoglobin and serum albumin levels.(ABSTRACT TRUNCATED AT 250 WORDS).

PMID:
7579050
[Indexed for MEDLINE]
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