Patterns of myocardial injury in recovered troponin-positive COVID-19 patients assessed by cardiovascular magnetic resonance.

Background: Troponin elevation is common in hospitalized COVID-19 patients, but underlying aetiologies are ill-defined. We used multi-parametric cardiovascular magnetic resonance (CMR) to assess myocardial injury in recovered COVID-19 patients.

Methods And Results: One hundred and forty-eight patients (64 ± 12 years, 70% male) with severe COVID-19 infection [all requiring hospital admission, 48 (32%) requiring ventilatory support] and troponin elevation discharged from six hospitals underwent convalescent CMR (including adenosine stress perfusion if indicated) at median 68 days.

[Overlap syndrome].

The overlap syndromes are characterized by the occurrence in the same patient of two or more autoimmune diseases. The overlap syndrome between scleroderma and polymyositis is rare. We describe a case of a 58-year-old woman in which the clinical expression, the effect of therapy and the evolution, support the concept that this syndrome is a distinct clinical entity in the spectrum of autoimmune disease.