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Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants.

Publication ,  Journal Article
Selvaraj, S; Hu, R; Vidula, MK; Dugyala, S; Tierney, A; Ky, B; Margulies, KB; Shah, SH; Kelly, DP; Bravo, PE
Published in: J Am Soc Echocardiogr
March 2022

BACKGROUND: Interest in therapeutic applications of exogenous ketones has grown significantly, spanning patients with heart failure to endurance athletes. Exogenous ketones engender significant effects on cardiac function in heart failure and provide an ergogenic benefit in athletes. The aim of this study was to assess the effects of exogenous ketones on cardiac function in healthy participants. METHODS: In a single-arm intervention study, 20 fasting, healthy participants underwent comprehensive echocardiography (two-dimensional, Doppler, and strain) before and 30 min after weight-based oral ketone ester administration. The relationship between changes in log-transformed biomarker levels and change in absolute global longitudinal strain (GLS) was assessed using linear regression. RESULTS: The mean age was 30 ± 7 years, 50% were women, 45% were nonwhite, and the average body mass index was 24.3 ± 3.1 kg/m2. Ketone ingestion acutely elevated β-hydroxybutyrate levels from a median of 0.13 mmol/L (interquartile range, 0.10-0.37 mmol/L) to 3.23 mmol/L (interquartile range, 2.40-4.97 mmol/L) (P < .001). After ketone ester consumption, systolic blood pressure, heart rate, biventricular function, left ventricular GLS, and left atrial (LA) strain all augmented, while systemic vascular resistance decreased. Displayed as mean change, increases in ejection fraction (3.1%; 95% CI, 2.0%-4.2%; P < .001), GLS (2.0%; 95% CI, 1.4%-2.7%; P < .001), right ventricular S' (1.1 cm/sec; 95% CI, 0.4-1.8 cm/sec; P = .004), LA reservoir strain (7%; 95% CI, 3%-12%; P = .005), and LA contractile strain (4%; 2%-6%; P = .001) were observed. During robustly achieved ketosis, change in GLS was inversely associated with change in nonesterified fatty acids (P = .019). CONCLUSIONS: In a single-arm study, systolic blood pressure, heart rate, biventricular function, and LV and LA strain acutely augmented after ketone ester ingestion in healthy, fasting participants, similar to several effects observed in the failing heart. These data may provide supporting data for the ergogenic benefits observed in athletes and may become increasingly relevant with exogenous ketone consumption across a variety of cardiovascular and noncardiovascular applications.

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Published In

J Am Soc Echocardiogr

DOI

EISSN

1097-6795

Publication Date

March 2022

Volume

35

Issue

3

Start / End Page

305 / 311

Location

United States

Related Subject Headings

  • Young Adult
  • Ventricular Function, Left
  • Stroke Volume
  • Ketones
  • Humans
  • Healthy Volunteers
  • Female
  • Echocardiography
  • Cardiovascular System & Hematology
  • Adult
 

Citation

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Selvaraj, S., Hu, R., Vidula, M. K., Dugyala, S., Tierney, A., Ky, B., … Bravo, P. E. (2022). Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants. J Am Soc Echocardiogr, 35(3), 305–311. https://doi.org/10.1016/j.echo.2021.10.017
Selvaraj, Senthil, Ray Hu, Mahesh K. Vidula, Supritha Dugyala, Ann Tierney, Bonnie Ky, Kenneth B. Margulies, Svati H. Shah, Daniel P. Kelly, and Paco E. Bravo. “Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants.J Am Soc Echocardiogr 35, no. 3 (March 2022): 305–11. https://doi.org/10.1016/j.echo.2021.10.017.
Selvaraj S, Hu R, Vidula MK, Dugyala S, Tierney A, Ky B, et al. Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants. J Am Soc Echocardiogr. 2022 Mar;35(3):305–11.
Selvaraj, Senthil, et al. “Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants.J Am Soc Echocardiogr, vol. 35, no. 3, Mar. 2022, pp. 305–11. Pubmed, doi:10.1016/j.echo.2021.10.017.
Selvaraj S, Hu R, Vidula MK, Dugyala S, Tierney A, Ky B, Margulies KB, Shah SH, Kelly DP, Bravo PE. Acute Echocardiographic Effects of Exogenous Ketone Administration in Healthy Participants. J Am Soc Echocardiogr. 2022 Mar;35(3):305–311.
Journal cover image

Published In

J Am Soc Echocardiogr

DOI

EISSN

1097-6795

Publication Date

March 2022

Volume

35

Issue

3

Start / End Page

305 / 311

Location

United States

Related Subject Headings

  • Young Adult
  • Ventricular Function, Left
  • Stroke Volume
  • Ketones
  • Humans
  • Healthy Volunteers
  • Female
  • Echocardiography
  • Cardiovascular System & Hematology
  • Adult