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Revista americana de medicina respiratoria

On-line version ISSN 1852-236X


ROCCO, Ana Paula et al. Incidence of respiratory tract infections in tracheostomized patients hospitalized in a weaning and rehabilitation center. Rev. am. med. respir. [online]. 2016, vol.16, n.4, pp.318-323. ISSN 1852-236X.

Objectives: To describe the incidence of respiratory tract infections (RTIs) in tracheostomized patients hospitalized in a weaning and rehabilitation center (WRC) and to identify risk factors (RFs) for the development of RTI. Materials and methods: A nested case-control study was conducted. Age was used as the matching variable. All tracheostomized patients who were hospitalized from March, 2013, to February, 2015, were included. The incidence of RTI was recorded. Results: A total of 167 patients were included, with 73 RTI episodes being recorded in 46 patients (27.5%). Cumulative incidence was 27.5%, and incidence rate was 2.22 episodes per 1,000 days of stay. Bacteria were recovered in 50 of the 73 episodes recorded, with Pseudomonas aeruginosa being the most prevalent organism (34.3%). The lowest albumin values proved to be a RF for the development of RTI (p 0.001, odds ratio [OR] 5.82, confidence interval [CI] 2.08-16.2). The highest hemoglobin values on admission acted as protective factors (p 0.048, OR 0.74, CI 0.55-0.99). Diagnoses of stroke (p 0.025, OR 3.45, CI 1.16-10.2), Parkinson (p 0.011, OR 18.9, CI 1.93-185) or amyotrophic lateral sclerosis (ALS) (p 0.013, OR 6.34, IC 1.47-27.2) on admission were established as risk factors for the development of RTI. Conclusion: For the first time in our setting, it was possible to determine the incidence of RTI in tracheostomized patients and the most common pathogens, although comparison with other WRCs is needed. The association found between albumin values and the subsequent development of RTI might be more related to an incidental finding than to a significant clinical difference. Patients with certain neurologic diseases are at increased risk for RTI.

Keywords : Respiratory tract infection; Pneumonia; Tracheostomy.

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