• Sheila da Silva Guimarães, Wanise de Souza Cruz, Licinio da Silva, Gabrielle Maciel, Ana Beatriz Huguenin, Monicque de Carvalho, Bárbara Costa, Geisiane da Silva, Carlos da Costa, João Alvaro D'Ippolito, Alexandre Colafranceschi, Fernanda Scalco, and Gilson Boaventura.
• Experimental Nutrition Laboratory, College of Nutrition Fluminense Federal University, Rio de Janeiro, Brazil.
• Ann. Nutr. Metab. 2017 Jan 1; 70 (2): 106-110.

AbstractDuring cardiac failure, cardiomyocytes have difficulty in using the substrates to produce energy. L-carnitine is a necessary nutrient for the transport of fatty acids that are required for generating energy. Coronary artery graft surgery reduces the plasma levels of L-carnitine and increases the oxidative stress. This study demonstrates the effect of L-carnitine supplementation on the reverse remodeling of patients undergoing coronary artery bypass graft. Patients with ischemic heart failure who underwent coronary graft surgery were randomized to group A - supplemented with L-carnitine or group B controls. Left ventricular ejection fraction, left ventricular systolic and diastolic diameters were assessed preoperatively, 60 and 180 days after surgery. Our study included 28 patients (26 [93.0%] males) with a mean age ± SD of 58.1 ± 10.5 years. The parameters for the evaluation of reverse remodeling did not improve after 60 and 180 days of coronary artery bypass grafting in comparison between groups (p > 0.05). Evaluation within the L-carnitine group showed a 37.1% increase in left ventricle ejection fraction (p = 0.002) and 14.3% (p = 0.006) and 3.3% (p > 0.05) reduction in systolic and diastolic diameters, respectively. L-carnitine supplementation at a dose of 50 mg/kg combined with artery bypass surgery did not demonstrate any additional benefit in reverse remodeling. However, evaluation within the L-carnitine group may indicate a clinical benefit of L-carnitine supplementation.© 2017 S. Karger AG, Basel.

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