Coronary and cerebral thrombosis in a young patient after mild COVID-19 illness: a case report

Background COVID-19 has spread worldwide and has caused significant morbidity and mortality. Myocardial injury and thrombo-embolism are known complications for those with severe forms of disease. The incidence and risk factors for these complications for those patients who are asymptomatic or with mild forms of COVID-19 is unknown. Case summary In this report we describe the case of a 35-year-old man with no past cardiac history who presented with chest pain and a high-sensitivity troponin level of 386 ng/L in the context of an unspecified mild viral illness 1 month previously. Diagnostic evaluation revealed a new cardiomyopathy, left ventricular thrombus, and mid right coronary artery thrombosis. The coronary thrombosis was treated with thrombectomy. SARS-CoV-2 antibodies returned positive. He initially did well post-procedure; however, prior to discharge, he developed a second arterial thrombo-embolism event, a middle cerebral artery stroke. He was treated with thrombectomy and remains hospitalized. Discussion Recognition that mild COVID-19 can be complicated by subsequent cardiac injury and/or coagulopathy is important. As more people recover from this viral illness and return to normal activity levels, discussion among cardiac experts has begun regarding screening for occult myocardial injury in those who plan to resume competitive athletic activity. This case highlights the need for investigation regarding (i) the duration of thrombophilia after recovery from illness; (ii) the population that should receive thromboprophylaxis; and (iii) the duration of thromboprophylaxis therapy for COVID-19.