Dear Editor,
We would like to share ideas on “Acute Myocardial Injury Following COVID-19 Vaccination: A Case Report and Review of Current Evidence from Vaccine Adverse Events Reporting System Database.1” Deb et al mentioned that “Review of the Vaccine Adverse Events Reporting System (VAERS) in the Centers for Disease Control and Prevention . . .. . .. . . be vigilant about the possibility of new adverse events.1” The myocardial injury following vaccination is sporadically reported and it might be underreported since self-limitation is possible.2 Regarding the reported elderly case,1 there are many possible underlying pathomechanism. Deb et al noted that it was a result of an acute immune response but there is no data on immune change or pathological autoimmunity. In this case, there might be an underlying cardiovascular condition and the given vaccine might induce thrombohemostasis alteration. In a previous report, the COVID-19 vaccination can result in increased blood viscosity which might be an important leading cause of myocardial disease.3
Footnotes
Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding: The author(s) received no financial support for the research, authorship, and/or publication of this article.
ORCID iD: Pathum sookaromdee 
https://orcid.org/0000-0002-8859-5322
References
- 1.Deb A, Abdelmalek J, Iwuji K, Nugent K.Acute myocardial injury following COVID-19 vaccination: a case report and review of current evidence from vaccine adverse events reporting system database. J Prim Care Community Health. 2021;12:21501327211029230. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.Park J, Brekke DR, Bratincsak A.Self-limited myocarditis presenting with chest pain and ST segment elevation in adolescents after vaccination with the BNT162b2 mRNA vaccine. Cardiol Young. Published online June 28, 2021. doi: 10.1017/S1047951121002547 [DOI] [PubMed] [Google Scholar]
- 3.Joob B, Wiwanitkit V.Expected viscosity after COVID-19 vaccination, hyperviscosity and previous COVID-19. Clin Appl Thromb Hemost. 2021;27:10760296211020833. [DOI] [PMC free article] [PubMed] [Google Scholar]