Published online Sep 26, 2023. doi: 10.4330/wjc.v15.i9.427
Peer-review started: April 21, 2023
First decision: June 19, 2023
Revised: July 12, 2023
Accepted: August 17, 2023
Article in press: August 17, 2023
Published online: September 26, 2023
Processing time: 152 Days and 16.4 Hours
There are indications that viral myocarditis, demand ischemia, and renin-angio
To evaluate the effect of dexamethasone, remdesivir, and angiotensin-converting enzyme (ACE) inhibitors (ACEI) on mortality in COVID-19 patients with elevated troponin.
Our retrospective observational study involved 1788 COVID-19 patients at seven hospitals in Southern California, United States. We did a backward selection Cox multivariate regression analysis to determine predictors of mortality in our study population. Additionally, we did a Kaplan Meier survival analysis in the subset of patients with elevated troponin, comparing survival in patients that received dexamethasone, remdesivir, and ACEI with those that did not.
The mean age was 66 years (range 20-110), troponin elevation was noted in 11.5% of the patients, and 29.9% expired. The patients' age [hazard ratio (HR) = 1.02, P < 0.001], intensive care unit admission (HR = 5.07, P < 0.001), and ventilator use (HR = 0.68, P = 0.02) were significantly associated with mortality. In the subset of patients with elevated troponin, there was no statistically significant difference in survival in those that received remdesivir (0.07), dexamethasone (P = 0.63), or ACEI (P = 0.8) and those that did not.
Although elevated troponin in COVID-19 patients has been associated with viral myocarditis and ACE II receptors, conventional viral myocarditis treatment, including antiviral and steroids, and ACEI did not show any effect on mortality in these patients.
Core Tip: Myocarditis from direct viral injury or related to angiotensin-converting enzyme (ACE) II downregulation with subsequent hyperactivity of the renin-angiotensin-aldosterone system plays an essential role in troponin elevation in coronavirus disease 2019 (COVID-19) patients. However, the effect of antiviral medications and steroids used to treat viral myocarditis has not been well-studied in patients with elevated troponins, which this study sought to address. We found no significant difference in survival rates in COVID-19 patients with elevated troponin that received remdesivir, dexamethasone, or ACE inhibitors vs those that did not. The implication for practice is that treatment with various medications that could be beneficial in viral myocarditis did not show any mortality benefit in our study for COVID-19 patients with troponin elevation.