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Abstract

Introduction: SARS-CoV-2 infection is associated with myocardial inflammation, new onset cardiomyopathy, and arrhythmias. Here, we describe the utilization of POCUS and management of concurrent new onset atrial tachycardia and heart failure with reduced ejection fraction (HfrEF) in a patient with SARS-CoV-2 infection. Presentation: An 80-year-old female with multiple medical problems presented with sudden onset of shortness of breath and cough. She tested positive for SARS-CoV-2. Initially, she was hypoxic on room air and her heart rhythm was sinus tachycardia. CT angiogram of the chest showed consolidation, pleural effusion, and absence of pulmonary embolism. Because of persistent tachycardia, repeat EKGs and POCUS were performed. Subsequent EKGs showed intermittent atrial tachycardia and sinus tachycardia. Initially, home beta blockers were continued on admission, and additional dosages were considered for rate control, but Cardiac POCUS revealed HfrEF and was subsequently confirmed by comprehensive cardiac echocardiogram, consistent with SARS-CoV-2 infection-related cardiomyopathy. Beta blockers were discontinued, and treatment with amiodarone and furosemide showed improvement in symptoms. The patient was discharged with oral amiodarone and supplemental oxygen. Additionally, once patient's hemodynamics improved, oral carvedilol was also started as part of GDMT for HfrEF. Follow-up echocardiogram 4 months later showed recovery of systolic EF to 60%. Conclusion: It is essential to consider new onset HFrEF in the evaluation and management of new onset tachyarrhythmias since IV fluids and AV nodal blocking agents can be harmful in decompensated HFrEF. With the advent of POCUS, HFrEF can be quickly identified, and therapy can be tailored to that diagnosis

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