CLINICAL, LABORATORY, MICRPBIOLOGICAL AND SHORT-TEM OUTCOMES OF COMMUNITY-ACQUIRED PNEUMONIA IN HOSPITALIZED COPD PATIENTS

Thị Xuân Mai Lê1,, Thị Tường Oanh Đỗ2
1 People's Hospital 115
2 Pham Ngoc Thach University of Medicine

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Abstract

Objectives: To describes the prevalence and clinical, laboratory, microbiological and short-term outcomes of community-acquired pneumonia in hospitalized COPD patients, and also investigates risk factors for CAP in this group of patients. Subjects and methods: Cohort study on 180 COPD patients hospitalized for acute lower respiratory tract infections. Patients were divided into 2 groups of CAP-COPD (n=58) and EACOPD (n=122) based on new progressive infiltrates or consolidation on chest radiograph. Anthropometric, clinical, laboratory, and microbiological characteristics and course of hospital stay were all recorded. Results: The rate of CAP in hospitalized COPD patients was 32.2%. COPD patients with CAP had lower BMI, more severe obstruction (FEV1%), clinical manifestations (fever, purulent sputum, increased sputum volume) and paraclinical indicators (leukocytosis, decreased eosinophil, increased CRP, changes in arterial blood gas) more severe than exacerbation patients. The CAP group had a higher rate of respiratory failure and a longer hospital stay than the exacerbation group. Independent risk factors predicting CAP in patients with COPD include fever (OR=3.4451); FEV1<30% (OR=3,517); BC>10K/µL (OR=3.115), CRP (OR=1,061). The CRP cut-off was 15.745mg/l with AUC 0.912; sensitivity 93.1%; specificity 77%. Conclusion: COPD patients hospitalized for CAP have many differences in clinical, paraclinical and disease progression compared with COPD exacerbations and have independent risk factors predicting the occurrence of CAP in COPD patients.

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References

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