Covid can cause heart problems. Here's how the virus may do its damage.
"Covid can cause damage to the heart on a cellular level that can lead to lasting problems, including irregular heartbeats and heart failure, preliminary research suggests."
New preprint of mouse study: "The SARS-CoV-2 Spike protein induces long-term transcriptional perturbations of mitochondrial metabolic genes, causes cardiac fibrosis, and reduces myocardial contractile in obese mice"
Twitter thread by Dr. Elisa Perego Evidence of cardiac involvement in a significant percentage of covid survivors, even with "mild" disease from Puntmann et al 2020
"cardiac MRI revealed cardiac involvement in 78 patients (78%) and ongoing myocardial inflammation in 60 patients (60%)
After Covid: 63% higher likelihood of heart attack 72% higher likelihood of heart failure 145% higher likelihood of cardiac arrest. atrial fibrillation (71% more likely), sinus tachycardia (84%) sinus bradycardia (53%) ventricular arrhythmias (84%).