Dilated Cardiomyopathy in a Child with COVID-19
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The COVID-19 is though primarily a respiratory tract infection, various extra-pulmonary complications have also been reported. We hereby report dilated cardiomyopathy (DCM) in a one-year-old premorbidly healthy boy.

A one-year-old boy presented with low-grade fever for two days, followed by generalized swelling all over body and tachypnea for one week. Past and family history were not contributory. He was admitted in an outside hospital for five days with diagnosis of CCF. Investigations done there revealed cardiomegaly on chest X-ray (CXR), iron deficiency anemia, deranged liver function tests and normal CRP. Rest of the investigations were normal. Echo revealed dilated ventricles with global hypokinesia with left ventricular ejection fraction of 12% and normal coronaries. Child was managed symptomatically and referred for specialized care.

At presentation to our hospital he had tachycardia, tachypnea and SaO2 of 97% in room air. He was still in CCF with basal crepitations and hepatomegaly of 4 cm. Investigations in ED showed cardiomegaly on CXR, Hb 8.7 g/dL, TLC 12,200 with 50% neutrophils, 43% lymphocytes and platelet count of 74,000/mm3. The ECG did not show any abnormality. In view of severe left ventricular dysfunction and CCF, furosemide and dobutamine infusion was started.

His rRTPCR for the SAR-CoV-2 ORF 1ab gene done by a commercial kit on nasopharyngeal swab was positive. He was admitted in isolation ward while inotropes and diuretics were continued. However, his CCF persisted and inotropes were hiked. He suffered a sudden cardiac arrest 33 h after admission from which he could not be revived.

Viral infection is a known secondary cause of DCM. CCF has been reported in 23% of COVID-19 patients. Viral myocarditis may also present acutely with CCF and ventricular dilation but has a milder course while fulminant myocarditis has normal cardiac chamber sizes. This patient had normal ECG and inflammatory markers. He had recent onset cardiomyopathy, as he was premorbidly normal, did not have pneumonia, metabolic abnormality, or fluid overload, ruling out secondary myocardial dysfunction or stress cardiomyopathy. DCM was possibly due to coronavirus infection though the etiological role of the virus could not be proved.

Source: https://link.springer.com/article/10.1007/s12098-020-03524-4
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