ABSTRACT
The removal and defense mechanisms of the respiratory system of patients with pneumoconiosis are impaired. Once patients with pneumoconiosis and other underlying lung diseases are infected with novel coronavirus, they are likely to progress to severe cases with COVID-19, a tough condition with a high mortality and poor prognosis. Herein we presented a case of pneumoconiosis and tuberculosis complicated with severe COVID-19. Active administration of anti-viral, anti-infection, phlegm-removing, anti-asthmatic, and high-flow oxygen therapies did not alleviate the patient's acute respiratory distress syndrome symptoms. Then tracheal intubation, ventilator assisted breathing, and lung protective ventilation were given but did not effectively treat the patient's respiratory failure. Finally, the patient died clinically despite use of extracorporeal membrane oxygenation (ECMO).