Abstract
The pathophysiology of myocardial injury following COVID-19 remains uncertain. COVID-HEART was a prospective, multicentre study utilising cardiovascular magnetic resonance (CMR) to characterise COVID-related myocardial injury. In this pre-specified analysis, the objectives were to examine (1) the frequency of myocardial ischaemia following COVID-19, and (2) the association between ischaemia and myocardial injury. We studied 59 patients hospitalised with COVID-19 and elevated serum troponin (COVID + /troponin +, age 61 ± 11 years) and 37 control subjects without COVID-19 or elevated troponin and similar by age and cardiovascular comorbidities (COVID −/comorbidity +, 64 ± 10 years). Subjects underwent multi-parametric CMR (comprising assessment of ventricular volumes, stress perfusion, T1/T2 mapping and scar). The primary endpoint was the frequency of inducible myocardial ischaemia. Inducible ischaemia was evident in 11 (19%) COVID + /troponin + patients and in 8 (22%) control subjects (p = 0.72). In COVID + /troponin + patients with ischaemia, epicardial coronary disease pattern ischaemia was present in eight patients and microvascular disease pattern, in three patients. There was no significant difference in the frequency of inducible ischaemia in COVID + /troponin + patients with previous myocardial infarction and/or revascularisation compared to those without (2/12 [17%] vs. 9/47 [19%] respectively, p = 0.84), or in those with and without scar (7/27 [26%] vs. 4/32 [13%] respectively, p = 0.19). Myocardial ischaemia was present in ~ 20% of patients recently hospitalised with COVID-19 and with elevated cardiac troponin, but this was not different to matched comorbid controls. This finding coupled with the lack of an association between ischaemia and myocardial scar suggests that coronary artery abnormalities are unlikely to be the predominant mechanism underlying COVID-19 induced myocardial injury.
| Original language | English |
|---|---|
| Article number | 764599 |
| Pages (from-to) | 247-256 |
| Number of pages | 10 |
| Journal | International Journal of Cardiovascular Imaging |
| Volume | 41 |
| Issue number | 2 |
| Early online date | 30 Dec 2024 |
| DOIs | |
| Publication status | Published - Feb 2025 |
Bibliographical note
AcknowledgementsDr Arnold is supported by an NIHR Clinician Scientist Award (CS-2018-18-ST2-007). Dr McCann is funded by an NIHR research professorship (RP-2017-08-ST2-007). Dr Berry acknowledges British Heart Foundation support (Grant RE/18/6134217). Dr Artico received funding from the European Association of Cardiovascular Imaging (EACVI research grant App000073878). Dr Manisty is funded by an NIHR clinician scientist award (CS-2015-15-003). Drs Ferreira, Piechnik, and Neubauer acknowledge the NIHR Oxford Biomedical Research Centre for support of this study. Dr Ferreira acknowledges the British Heart Foundation for support during the study (CH/16/1/32013). Dr Bucciarelli-Ducci is supported in part by the NIHR Biomedical Research Centre at University Hospitals Bristol National Health Service Foundation Trust and the University of Bristol. Additional support was provided by the NIHR Leicester Biomedical Research Centre and the NIHR Leeds Clinical Research Facility. Dr Levelt is funded by a Wellcome Trust (Grant 221690/Z/20/Z). Dr Dweck is supported by the British Heart Foundation (Grant FS/SCRF/21/32010). Dr Greenwood was funded by the NIHR-UKRI COVID-19 Rapid Response Rolling Call (COV0254) and supported by the NIHR Leeds Clinical Research Facility. The views expressed in this publication are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care. The authors thank the patients and staff who supported this project.
Data Availability Statement
No datasets were generated or analysed during the current study.Funding
COVID-HEART is funded by the National Institute for Health Research (NIHR) and UK Research and Innovation (UKRI) COVID-19 Rapid Response Rolling Call (Grant Number COV0254).
| Funders | Funder number |
|---|---|
| National Institute for Health and Care Research | |
| UK Research and Innovation | COV0254 |
Keywords
- Cardiovascular diseases
- Coronavirus
- COVID-19
- Magnetic resonance imaging
- Myocardial ischaemia