Acute respiratory distress syndrome virus-2 (SARS-CoV-2) responsible for coronavirus disease 2019 (COVID-19) infection, which causes global public health emergencies, has sped widely for more than 5 months and has the risk of long-term transmission. No effective treatment has been discovered to date. In the cases we report, the patient continued to deteriorate even after administration of antiviral drugs such as lopinavir/ritonavir, interferon-α, and ribavirin, as well as intravenous injection of meropenem, methylprednisolone, and immunoglobulin. So, we infused the patient with convalescent plasma (CP), and the absolute lymphocyte count increased the next day and returned to normal on the fourth day. Followed by intravenous infusion of mesenchymal stem cells (MSCs), bilateral infiltrates were absorbed and the pulmonary function was significantly improved. We note that the intravenous infusion of CP and MSCs for the treatment of severe COVID-19 patients may have synergistic characteristics in inhibiting cytokine storm, promoting the repair of lung injury, and recovering pulmonary function. We hope to provide a reference for the research direction of COVID-19 clinical strategies.
【저자키워드】 COVID-19, convalescent plasma, SARS-CoV-2, Coronavirus disease 2019, Mesenchymal stem cells, 【초록키워드】 Methylprednisolone, Treatment, coronavirus disease, Cytokine storm, Infection, risk, MSCs, Transmission, Lung injury, ribavirin, antiviral drug, Pulmonary function, Characteristics, Immunoglobulin, Research, Absolute lymphocyte count, administration, MSC, distress, Interferon-α, intravenous, stem cell, followed by, Intravenous injection, global public health, syndrome, effective, synergistic, responsible, significantly, the patient, cause, inhibiting, returned, absorbed, deteriorate, infused, severe COVID-19 patient, 【제목키워드】 Case report, stem cell, synergistic,