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Clinical Characteristics and Outcomes of 74 Patients With Severe or Critical COVID-19
1Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Insights
Elderly patients with comorbidities face higher risks of severe COVID-19 and death. Early comprehensive treatment for patients with poor blood gas and coagulation indicators can improve prognosis and reduce mortality.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Epidemiology
Background:
- The COVID-19 pandemic poses a significant global health concern.
- Understanding clinical characteristics of severe and critical cases is crucial for patient outcomes.
Purpose of the Study:
- To clarify the clinical characteristics differentiating recovery from death in severe or critical COVID-19 patients.
- To identify predictors of mortality in severe COVID-19.
Main Methods:
- Retrospective single-center study of 74 severe or critical COVID-19 patients.
- Data collected from January 25th to February 26th, 2020.
- Comparison of clinical and laboratory data between recovery and death groups.
Main Results:
- The death group was older and had higher incidences of hypertension, coronary disease, and dyspnea.
- Elevated lactate dehydrogenase, creatine kinase, myoglobin, brain natriuretic peptide, and D-dimer were observed in the death group.
- Lower PaO2:FiO2 ratio, minimum SpO2, and higher rates of mechanical ventilation and ECMO were associated with mortality.
Conclusions:
- Elderly patients with comorbidities are at increased risk for severe COVID-19 and mortality.
- Low blood gas index and impaired coagulation at admission predict high mortality.
- Prompt comprehensive treatment is essential to improve prognosis and reduce mortality in high-risk patients.
Background:
The outbreak of the coronavirus disease (COVID-19) has led to a major concern and caused a pandemic globally. The goal of this study was to clarify the clinical characteristics of recovery and death in patients with severe or critical COVID-19.
Materials And Methods:
In this retrospective single-center study, clinical data were collected from 74 severe or critical COVID-19 patients in Wuhan Fourth Hospital between Jan. 25th and Feb. 26th, 2020. All patients were divided into a recovery group or a death group according to clinical outcomes, and the differences between the groups were compared.
Results:
Of the 74 patients enrolled in the study, 48 (64.9%) were severe cases and 26 (35.1%) were critical cases. Sixty (81.1%) patients were recovered and 14 (18.9%) died. Compared with recovery patients, patients in the death group were older, and had higher incidences of hypertension, coronary disease and dyspnea at admission. Laboratory tests for lactate dehydrogenase, creatine kinase, myoglobin, brain natriuretic peptide and D-dimer indicated higher levels in the death group. The PaO2:FiO2 ratio and minimum SpO2 were lower in the death group, and a higher proportion of these patients received noninvasive mechanical ventilation, invasive mechanical ventilation and extracorporeal membrane oxygenation treatment.
Conclusions:
Elderly patients with comorbidities are at higher risk of severe COVID-19 or death. Patients with a low blood gas index and poor coagulation function at admission had a high mortality rate. For such patients, comprehensive treatment should be performed as soon as possible to improve the prognosis and reduce mortality.
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