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Differential left ventricular and left atrial remodelling in heart failure with preserved ejection fraction patients with and without diabetes

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journal contribution
posted on 09.07.2019, 12:16 by G Gulsin, P Kangala, D Chan, A Cheng, L Athithan, M Graham-Brown, A Singh, J Yang, Z Li, K Khunti, M Davies, J Arnold, I Squire, L Ng, G McCann
Background: Attempts to characterize cardiac structure in heart failure with preserved ejection fraction (HFpEF) in people with type 2 diabetes (T2D) have yielded inconsistent findings. We aimed to determine whether patients with HFpEF and T2D have a distinct pattern of cardiac remodelling compared with those without diabetes and whether remodelling was related to circulating markers of inflammation and fibrosis and clinical outcomes. Methods: We recruited 140 patients with HFpEF (75 with T2D and 65 without). Participants underwent comprehensive cardiovascular phenotyping, including echocardiography, cardiac magnetic resonance imaging and plasma biomarker profiling. Results: Patients with T2D were younger (age 70 ± 9 versus 75 ± 9y, p = 0.002), with evidence of more left ventricular (LV) concentric remodelling (LV mass/volume ratio 0.72 ± 0.15 versus 0.62 ± 0.16, p = 0.024) and smaller indexed left atrial (LA) volumes (maximal LA volume index 48 ± 20 versus 59 ± 29 ml/m2, p = 0.004) than those without diabetes. Plasma biomarkers of inflammation and extracellular matrix remodelling were elevated in those with T2D. Overall, there were 45 hospitalizations for HF and 22 deaths over a median follow-up period of 47 months [interquartile range (IQR) 38–54]. There was no difference in the primary composite endpoint of hospitalization for HF and mortality between groups. On multivariable Cox regression analysis, age, prior HF hospitalization, history of pulmonary disease and LV mass/volume were independent predictors of the primary endpoint. Conclusions: Patients with HFpEF and T2D have increased concentric LV remodelling, smaller LA volumes and evidence of increased systemic inflammation compared with those without diabetes. This suggests the underlying pathophysiology for the development of HFpEF is different in patients with and without T2D. ClinicalTrials.gov identifier: NCT03050593.

Funding

The author(s) disclose receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by and falls under the portfolio of research conducted within the National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit. Overall project grant: IRS IS_BRU_0211_20033.

History

Citation

Therapeutic Advances in Endocrinology and Metabolism, 2019, 10: 1–17

Author affiliation

/Organisation/COLLEGE OF LIFE SCIENCES/School of Medicine/Department of Infection, Immunity and Inflammation

Version

VoR (Version of Record)

Published in

Therapeutic Advances in Endocrinology and Metabolism

Publisher

SAGE Publications (UK and US)

issn

2042-0188

Acceptance date

20/05/2019

Copyright date

2019

Available date

09/07/2019

Publisher version

https://journals.sagepub.com/doi/full/10.1177/2042018819861593

Notes

The datasets generated during and analysed during the current study are available from the corresponding author (GPM) upon reasonable request. Supplemental material for this article is available online.

Language

en