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Echocardiography. 2008 Jan;25(1):8-12. doi: 10.1111/j.1540-8175.2007.00560.x.

Prevalence and characteristics of left ventricular noncompaction in a community hospital cohort of patients with systolic dysfunction.

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1
Case Western Reserve University at MetroHealth Medical Center, Cleveland, Ohio 44109, USA.

Abstract

BACKGROUND:

Left ventricular noncompaction (LVNC) is felt to be a rare form of cardiomyopathy, although its prevalence in a nonreferred population is unknown. We examined the prevalence and clinical characteristics of LVNC in a community hospital cohort of adult patients with echocardiographic evidence of left ventricular (LV) systolic dysfunction.

METHODS:

All adult echocardiograms with global LV dysfunction and an LVEF < or = 45% over a 1-year period were reviewed for signs of LV noncompaction. Its presence was confirmed by the consensus of at least 2/3 readers specifically searching for this using standard criteria for noncompaction.

RESULTS:

A 3.7% prevalence of definite or probable LVNC was found in those with LVEF < or = 45% and a 0.26% prevalence for all patients referred for echocardiography during this period. This is appreciably higher than prior reports from tertiary centers.

CONCLUSION:

Noncompaction may not be a rare phenomenon and is comparable to other more widely recognized but less common causes of heart failure such as peripartum myopathy, connective tissue diseases, chronic substance abuse and HIV disease.

[Indexed for MEDLINE]

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