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Canadian Journal of Cardiology
Article . 2014 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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The Impact of Hemodialysis on Segmental and Global Longitudinal Myocardial Strain

Authors: Huang, S H; Crowley, L E; Jefferies, H J; Eldehni, M T; Odudu, A; McIntyre, C W;

The Impact of Hemodialysis on Segmental and Global Longitudinal Myocardial Strain

Abstract

Strain analysis derived from the analysis of speckle tracked imaging echocardiography can be used to examine ventricular contractile functions. In this study, we examined the relationship of hemodialysis (HD)-induced circulatory stress with overall ventricular function assessed according to global longitudinal strain (GLS) and segmental distribution of strain.This prospective observational study included 104 conventional HD patients at Royal Derby Hospital. Averaged values of segmental and GLS were determined from the echocardiography of these patients before and at peak dialysis. These values were compared with the reference values of healthy individuals, correlated with their demographic characteristics, and the effect on survival was assessed.The global strain value was -11.5% ± 4.42, and the segmental strain values were significantly greater in HD patients than in healthy individuals by 2.7%-9.8% (P 0.05), except within the basal lateral segment (P = 0.01). The adjusted hazard ratio for mortality was 4.3 (95% confidence interval, 1.2-14.9; P = 0.021) when > 80% of the segments exhibited more than the mean of segmental strain values. For the 46 patients who died, there were statistically significant negative correlations between survival time and GLS (r = -0.30; P = 0.04).Global and segmental strain measured using speckle tracked imaging provides information relating to the effects of HD-induced cardiac injury. The segmental strain abnormalities in the watershed area of the left ventricle suggest a higher degree of vulnerability to HD-induced demand ischemia.

Country
United Kingdom
Keywords

Male, Time Factors, Middle Aged, Prognosis, Myocardial Contraction, Ventricular Function, Left, Ventricular Dysfunction, Left, Cross-Sectional Studies, Echocardiography, Renal Dialysis, Humans, Female, Prospective Studies, Aged, Follow-Up Studies

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
14
Top 10%
Top 10%
Top 10%
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