claim: our main findings are that cardiac involvement may occur with covid-19 even without respiratory tract signs and symptoms of infection .
evidence_1: heart palpitations have been reported to be the main presenting symptom of covid-19 in patients without a fever or cough82.", "patients with covid-19 infection can present with symptoms mimicking cv events, including chest pain, dyspnoea, and shock, even in the absence of cardiac injury.", "an autopsy of a patient with covid-19 and ards who died of a sudden cardiac arrest showed no evidence of myocardial structural involvement, suggesting that covid-19 did not directly impair the heart57.", "these observations suggest that covid-19 can cause acs even in the absence of substantial systemic inflammation."
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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