TY - JOUR

T1 - Effects of Liraglutide on Heart Rate and Heart Rate Variability

T2 - A Randomized, Double-Blind, Placebo-Controlled Crossover Study

AU - Kumarathurai, Preman

AU - Anholm, Christian

AU - Larsen, Bjørn Strøier

AU - Olsen, Rasmus Huan

AU - Madsbad, Sten

AU - Kristiansen, Ole

AU - Nielsen, Olav W

AU - Haugaard, Steen B

AU - Sajadieh, Ahmad

N1 - © 2017 by the American Diabetes Association.

PY - 2017/1

Y1 - 2017/1

N2 - OBJECTIVE: Reduced heart rate variability (HRV) and increased heart rate (HR) have been associated with cardiovascular mortality. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) increase HR, and studies have suggested that they may reduce HRV. We examined the effect of the GLP-1 RA liraglutide on HRV and diurnal variation of HR in overweight patients with newly diagnosed type 2 diabetes (T2D) and stable coronary artery disease (CAD).RESEARCH DESIGN AND METHODS: Liraglutide or placebo was administrated to a backbone therapy of metformin in this double-blind, placebo-controlled 12 + 12-week crossover study. SD of beat-to-beat (NN) intervals (SDNN) was assessed by 24-h Holter monitoring as a measure of HRV. Diurnal HR variation and sympathovagal balance analyzed by root mean square of successive differences (RMSSD) in NN intervals and high-frequency (HF) and low-frequency (LF) power were assessed.RESULTS: Compared with placebo, liraglutide decreased SDNN in 27 subjects (-33.9 ms; P < 0.001, paired analysis); decreased RMSSD (-0.3 log-ms; P = 0.025); and increased the mean HR (8.1 beats/min; P = 0.003), daytime HR (5.7; P = 0.083), and nighttime HR (6.3; P = 0.026). In a multivariable regression analysis, the decrease in SDNN remained significant after adjustment for metabolic and HR changes. Liraglutide reduced HF power (-0.7 log-ms(2); P = 0.026) without any change in LF/HF ratio.CONCLUSIONS: In overweight patients with CAD and newly diagnosed T2D, liraglutide increased HR and reduced HRV despite significant weight loss and improvement in metabolic parameters. The increase in nightly HR in conjunction with a decrease in parameters of parasympathetic activity suggests that liraglutide may affect sympathovagal balance.

AB - OBJECTIVE: Reduced heart rate variability (HRV) and increased heart rate (HR) have been associated with cardiovascular mortality. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) increase HR, and studies have suggested that they may reduce HRV. We examined the effect of the GLP-1 RA liraglutide on HRV and diurnal variation of HR in overweight patients with newly diagnosed type 2 diabetes (T2D) and stable coronary artery disease (CAD).RESEARCH DESIGN AND METHODS: Liraglutide or placebo was administrated to a backbone therapy of metformin in this double-blind, placebo-controlled 12 + 12-week crossover study. SD of beat-to-beat (NN) intervals (SDNN) was assessed by 24-h Holter monitoring as a measure of HRV. Diurnal HR variation and sympathovagal balance analyzed by root mean square of successive differences (RMSSD) in NN intervals and high-frequency (HF) and low-frequency (LF) power were assessed.RESULTS: Compared with placebo, liraglutide decreased SDNN in 27 subjects (-33.9 ms; P < 0.001, paired analysis); decreased RMSSD (-0.3 log-ms; P = 0.025); and increased the mean HR (8.1 beats/min; P = 0.003), daytime HR (5.7; P = 0.083), and nighttime HR (6.3; P = 0.026). In a multivariable regression analysis, the decrease in SDNN remained significant after adjustment for metabolic and HR changes. Liraglutide reduced HF power (-0.7 log-ms(2); P = 0.026) without any change in LF/HF ratio.CONCLUSIONS: In overweight patients with CAD and newly diagnosed T2D, liraglutide increased HR and reduced HRV despite significant weight loss and improvement in metabolic parameters. The increase in nightly HR in conjunction with a decrease in parameters of parasympathetic activity suggests that liraglutide may affect sympathovagal balance.

KW - Journal Article

U2 - 10.2337/dc16-1580

DO - 10.2337/dc16-1580

M3 - Journal article

C2 - 27797930

VL - 40

SP - 117

EP - 124

JO - Diabetes Care

JF - Diabetes Care

SN - 0149-5992

IS - 1

ER -