Association of diet with left ventricular wall thickness, troponin I and IGF‐1 in cats with subclinical hypertrophic cardiomyopathy
Background Cats with subclinical hypertrophic cardiomyopathy (sHCM) have elevated serum insulin and serum amyloid A concentrations correlating with the degree of cardiac hypertrophy. Diet might affect these and other cardiac variables. Objective Evaluate the effect of a complete, balanced diet with...
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Published in | Journal of veterinary internal medicine Vol. 34; no. 6; pp. 2197 - 2210 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken, USA
John Wiley & Sons, Inc
01.11.2020
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Subjects | |
Online Access | Get full text |
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Summary: | Background
Cats with subclinical hypertrophic cardiomyopathy (sHCM) have elevated serum insulin and serum amyloid A concentrations correlating with the degree of cardiac hypertrophy. Diet might affect these and other cardiac variables.
Objective
Evaluate the effect of a complete, balanced diet with restricted starch and supplemented with eicosapentaenoic acid + docosahexaenoic acid (EPA + DHA) on echocardiographic variables and cardiac biomarkers in cats with sHCM.
Animals
Forty‐four client‐owned cats with sHCM.
Methods
A prospective, randomized, double‐blind, multicenter study enrolled cats with end‐diastole interventricular septum thickness (IVSd) or left ventricular wall thickness (LVWd) ≥6 mm, or both. Nonsedated, fasted cats were examined at baseline and after 6 and 12 months of Test (restricted starch and EPA + DHA supplements) (n = 23) or Control (unrestricted starch without EPA + DHA supplementation) (n = 21) diet. Assessments included auscultation, body weight, body condition score, echocardiography and blood analysis. Linear and generalized mixed models analyzed diet, time and diet * time interactions (5% significance level).
Results
No differences between diet groups were significant for any variable at any timepoint. There were significant decreases in the Test but not Control group in maximum IVSd (P = .03), maximum LVWd (P = .02) and insulin‐like growth factor‐1 levels (P = .04) after 12 months, and in ultrasensitive cardiac troponin I (cTnI) (P = .001) after 6 months; effect sizes (95% confidence interval) were 0.53 (0.09; 0.99), 0.63 (0.18; 1.09), 0.61 (0.16; 1.07), and 0.37 (−0.06; 0.8), respectively.
Conclusions and Clinical Importance
Cats with sHCM fed Test diet had significant decreases in echocardiographic variables of sHCM and in cTnI and IGF‐1. |
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Bibliography: | Funding information Royal Canin SAS ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Undefined-2 Funding information Royal Canin SAS |
ISSN: | 0891-6640 1939-1676 |
DOI: | 10.1111/jvim.15925 |