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Published in: BMC Nephrology 1/2015

Open Access 01-12-2015 | Research article

Left ventricular global longitudinal strain is associated with cardiovascular risk factors and arterial stiffness in chronic kidney disease

Authors: Rathika Krishnasamy, Carmel M. Hawley, Tony Stanton, Elaine M. Pascoe, Katrina L. Campbell, Megan Rossi, William Petchey, Ken-Soon Tan, Kassia S. Beetham, Jeff S. Coombes, Rodel Leano, Brian A. Haluska, Nicole M. Isbel

Published in: BMC Nephrology | Issue 1/2015

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Abstract

Background

Global longitudinal strain (GLS) has emerged as a superior method for detecting left ventricular (LV) systolic dysfunction compared to ejection fraction (EF) on the basis that it is less operator dependent and more reproducible. The 2-dimensional strain (2DS) method is easily measured and integrated into a standard echocardiogram. This study aimed to determine the relationship between GLS and traditional and chronic kidney disease (CKD)-related risk factors of cardiovascular disease (CVD) in patients with CKD.

Methods

A cross sectional study of patients with moderate CKD stages 3 and 4 (n = 136). Clinical characteristics, anthropometric, biochemical data including markers of inflammation [C-reactive protein (CRP)], uremic toxins [indoxyl sulphate (IS), p-cresyl sulphate (PCS)], and arterial stiffness [pulse wave velocity (PWV)] were measured. Inducible ischemia was detected using exercise stress echocardiogram. GLS was determined from 3 standard apical views using 2-dimensional speckle tracking and EF was measured using Simpson’s rule. Associations between GLS and traditional and CKD-related risk factors were explored using multivariate models.

Results

The study population parameters included: age 59.4 ± 9.8 years, 58 % male, estimated glomerular filtration rate (eGFR) 44.4 ± 10.1 ml/min/1.73 m2, GLS −18.3 ± 3.6 % and EF 65.8 % ± 7.8 %. This study demonstrated that GLS correlated with diabetes (r = 0.21, p = 0.01), history of heart failure (r = 0.20, p = 0.01), free IS (r = 0.24, p = 0.005) free PCS (r = 0.23, p = 0.007), body mass index (BMI) (r = 0.28, p < 0.001), and PWV (r = 0.24, p = 0.009). Following adjustment for demographic, baseline co-morbidities and laboratory parameters,GLS was independently associated with free IS, BMI and arterial stiffness (R2 for model = 0.30, p < 0.0001).

Conclusions

In the CKD cohort, LV systolic function assessed using GLS was associated with uremic toxins, obesity and arterial stiffness.
Appendix
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Metadata
Title
Left ventricular global longitudinal strain is associated with cardiovascular risk factors and arterial stiffness in chronic kidney disease
Authors
Rathika Krishnasamy
Carmel M. Hawley
Tony Stanton
Elaine M. Pascoe
Katrina L. Campbell
Megan Rossi
William Petchey
Ken-Soon Tan
Kassia S. Beetham
Jeff S. Coombes
Rodel Leano
Brian A. Haluska
Nicole M. Isbel
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Nephrology / Issue 1/2015
Electronic ISSN: 1471-2369
DOI
https://doi.org/10.1186/s12882-015-0098-1

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