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Tayal U, Gregson J, Buchan R, Whiffin N, Halliday BP, Lota A, Roberts AM, Baksi AJ, Voges I, Jarman JWE, Baruah R, Frenneaux M, Cleland JGF, Barton P, Pennell DJ, Ware JS, Cook SA, Prasad SK. Moderate excess alcohol consumption and adverse cardiac remodelling in dilated cardiomyopathy. Heart 2022; 108:619-625. [PMID: 34380661 PMCID: PMC8961767 DOI: 10.1136/heartjnl-2021-319418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/12/2021] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE The effect of moderate excess alcohol consumption is widely debated and has not been well defined in dilated cardiomyopathy (DCM). There is need for a greater evidence base to help advise patients. We sought to evaluate the effect of moderate excess alcohol consumption on cardiovascular structure, function and outcomes in DCM. METHODS Prospective longitudinal observational cohort study. Patients with DCM (n=604) were evaluated for a history of moderate excess alcohol consumption (UK government guidelines; >14 units/week for women, >21 units/week for men) at cohort enrolment, had cardiovascular magnetic resonance and were followed up for the composite endpoint of cardiovascular death, heart failure and arrhythmic events. Patients meeting criteria for alcoholic cardiomyopathy were not recruited. RESULTS DCM patients with a history of moderate excess alcohol consumption (n=98, 16%) had lower biventricular function and increased chamber dilatation of the left ventricle, right ventricle and left atrium, as well as increased left ventricular hypertrophy compared with patients without moderate alcohol consumption. They were more likely to be male (alcohol excess group: n=92, 94% vs n=306, 61%, p=<0.001). After adjustment for biological sex, moderate excess alcohol was not associated with adverse cardiac structure. There was no difference in midwall myocardial fibrosis between groups. Prior moderate excess alcohol consumption did not affect prognosis (HR 1.29, 95% CI 0.73 to 2.26, p=0.38) during median follow-up of 3.9 years. CONCLUSION DCM patients with moderate excess alcohol consumption have adverse cardiac structure and function at presentation, but this is largely due to biological sex. Alcohol may contribute to sex-specific phenotypic differences in DCM. These findings help to inform lifestyle discussions for patients with DCM.
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Affiliation(s)
- Upasana Tayal
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - John Gregson
- London School of Hygiene and Tropical Medicine, London, UK
| | - Rachel Buchan
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Nicola Whiffin
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Brian P Halliday
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Amrit Lota
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Angharad M Roberts
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
| | - A John Baksi
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | | | - Julian W E Jarman
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | | | | | - John G F Cleland
- National Heart and Lung Institute, Imperial College London, London, UK
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Paul Barton
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Dudley J Pennell
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - James S Ware
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
| | - Stuart A Cook
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
- Duke NUS, Singapore
| | - Sanjay K Prasad
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
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