tetano
Editor, Senior Moderator
Int Heart J
. 2023 Jan 23.
doi: 10.1536/ihj.22-355. Online ahead of print.
Different Types of Myocardial Injury due to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Omicron Variant
Keishi Moriwaki[SUP] 1 [/SUP], Naoki Fujimoto[SUP] 1 [/SUP], Hiroaki Murakami[SUP] 1 [/SUP], Kazuaki Maruyama[SUP] 2 [/SUP], Masaki Ishida[SUP] 3 [/SUP], Masaki Tanabe[SUP] 4 [/SUP], Kyoko Imanaka-Yoshida[SUP] 3 [/SUP], Kaoru Dohi[SUP] 1 [/SUP]
Affiliations
Abstract
Coronavirus disease 2019 (COVID-19) associated myocardial injury was caused by various mechanisms. We herein describe 2 cases presenting different types of myocardial injury due to Omicron variant. In both patients, diffuse reduced left ventricular (LV) wall motion in transthoracic echocardiography, electrocardiographic abnormality, and elevated myocardial enzymes were demonstrated. In addition, cardiovascular magnetic resonance (CMR) findings fulfilled the 2018 Lake Louise Criteria (LLC) for myocarditis. However, histological findings in 1 patient showed inflammatory cell infiltration with myocyte degeneration, while those in the other showed interstitial edema without inflammatory cell infiltration. Histological findings were crucial for a differential diagnosis of myocardial injury due to Omicron variant.
Keywords: COVID-19; Cardiovascular magnetic resonance; Histology; Myocarditis.
. 2023 Jan 23.
doi: 10.1536/ihj.22-355. Online ahead of print.
Different Types of Myocardial Injury due to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Omicron Variant
Keishi Moriwaki[SUP] 1 [/SUP], Naoki Fujimoto[SUP] 1 [/SUP], Hiroaki Murakami[SUP] 1 [/SUP], Kazuaki Maruyama[SUP] 2 [/SUP], Masaki Ishida[SUP] 3 [/SUP], Masaki Tanabe[SUP] 4 [/SUP], Kyoko Imanaka-Yoshida[SUP] 3 [/SUP], Kaoru Dohi[SUP] 1 [/SUP]
Affiliations
- PMID: 36682768
- DOI: 10.1536/ihj.22-355
Abstract
Coronavirus disease 2019 (COVID-19) associated myocardial injury was caused by various mechanisms. We herein describe 2 cases presenting different types of myocardial injury due to Omicron variant. In both patients, diffuse reduced left ventricular (LV) wall motion in transthoracic echocardiography, electrocardiographic abnormality, and elevated myocardial enzymes were demonstrated. In addition, cardiovascular magnetic resonance (CMR) findings fulfilled the 2018 Lake Louise Criteria (LLC) for myocarditis. However, histological findings in 1 patient showed inflammatory cell infiltration with myocyte degeneration, while those in the other showed interstitial edema without inflammatory cell infiltration. Histological findings were crucial for a differential diagnosis of myocardial injury due to Omicron variant.
Keywords: COVID-19; Cardiovascular magnetic resonance; Histology; Myocarditis.