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Effect of sputum bacteriology on the prognosis of patients with acute exacerbations of bronchiectasis in the intensive care unit [Eurasian J Pulmonol]
Eurasian J Pulmonol. 2018; 20(2): 85-92 | DOI: 10.5152/ejp.2017.96658  

Effect of sputum bacteriology on the prognosis of patients with acute exacerbations of bronchiectasis in the intensive care unit

Fatma Çiftci, Deniz Doğan Mülazımoğlu, Serhat Erol, Aydın Çiledağ, Akın Kaya
Ankara University School of Medicine, Chest Disease Department

Objective
In bronchiectasis cases, isolation of the bacterial infection agent is related with disease severity. The purpose of the study was to find the impact of bacterial infections on the prognosis of bronchiectasis exacerbations in patients hospitalized in the intensive care unit (ICU).
Method
A retrospective, single-center, clinical study was performed on 48 patients who were diagnosed as having bronchiectasis exacerbation in the ICU. Sputum cultures of the patients were collected at the time of ICU admission. Clinical characteristics, treatment with non-invasive ventilation (NIV), invasive ventilation (IV) requirement, and mortality were recorded.
Results
The bacteriologic sputum examination was positive in 24 patients. The bacteriologic analysis of sputum cultures revealed Pseudomonas aeruginosa in 12 patients, Streptococcus pneumonia in 4, Hemophilus influenza in 3, Acinetobacter baumannii in 3, and Escherichia coli in 2 patients. Seventeen patients needed IV during ICU follow-up, 7 of whom died.
Bacterial proliferation in sputum culture was correlated to IV treatment need (p=0.005). The radiologic disease extent was greater in patients with culture proliferation (p=0.028). The patients who needed IV treatment had a greater radiologic disease extent (p=0.007), pulmonary artery systolic pressure (PAP) (p=0.004), C-reactive protein (CRP) (p=0.014), and number of hospital admissions (p=0.017). A multiple regression analysis for treatment success involving the variables of PAP, culture results, and radiologic disease extent revealed that bacterial proliferation was the most important factor for treatment success (OR: 2.05; CI: [0.87-3.23]; p=0.04).
Conclusion
Positive bacterial examination of sputum is the most important prognostic factor for patients with bronchiectasis exacerbation admitted to the ICU.

Keywords: Bronchiectasis, bronchiectasis exacerbation, acute respiratory failure, sputum culture


Fatma Çiftci, Deniz Doğan Mülazımoğlu, Serhat Erol, Aydın Çiledağ, Akın Kaya. Effect of sputum bacteriology on the prognosis of patients with acute exacerbations of bronchiectasis in the intensive care unit. Eurasian J Pulmonol. 2018; 20(2): 85-92

Corresponding Author: Fatma Çiftci, Türkiye


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