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J. Korean Med. Sci. · Aug 2020
Clinical Characteristics of COVID-19: Clinical Dynamics of Mild Severe Acute Respiratory Syndrome Coronavirus 2 Infection Detected by Early Active Surveillance.
- Hyeon Jeong Suh, Deok Hee Kim, Eun Young Heo, Hyun Woo Lee, Jung Kyu Lee, Chang Seop Lee, Mijeong Kim, Yong Duk Jeon, Jin Won Chung, Young Keun Kim, Pyo Jin Shin, Mi Suk Lee, Jin Suk Kang, Myung Jin Lee, Baek Nam Kim, and Sang Won Park.
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
- J. Korean Med. Sci. 2020 Aug 17; 35 (32): e297.
BackgroundThere is limited information describing the presenting characteristics and dynamic clinical changes in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection diagnosed in the early phase of illness. This study is a case series of patients with coronavirus disease 2019 (COVID-19) admitted to 11 hospitals in Korea.MethodsPatients with confirmed SARS-CoV-2 infection by positive polymerase chain reaction (PCR) testing of respiratory specimens by active surveillance that were finally discharged between February 20 and April 30, 2020 were included. Patients were classified into mild and non-mild groups on initial admission according to oxygen demand and Sequential Organ Failure Assessment score, and the mild group was followed up and subgrouped into non-aggravation and aggravation groups.ResultsA total of 161 patients with SARS-CoV2 infection were enrolled. Among the mild group of 136 patients, 11.7% of patients experienced clinical aggravation during hospitalization, but there was no initial clinical parameter on admission predicting their aggravation. Fever (odds ratio [OR], 4.56), thrombocytopenia (OR, 12.87), fever (OR, 27.22) and lactate dehydrogenase (LDH) > 300 U/L (OR, 18.35), and CRP > 1 mg/dL (OR, 11.31) significantly indicated aggravation in the 1st, 2nd, 3rd, and 4th 5-day periods, respectively. PCR positivity lasted for a median of 22 days and 32 days after the onset of illness in the non-aggravation and aggravation groups, respectively.ConclusionOld age was associated with early severe presentation. Clinical aggravation among asymptomatic or mild patients could not be predicted initially but was heralded by fever and several laboratory markers during the clinical course.© 2020 The Korean Academy of Medical Sciences.
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