NDLI: Suspected ventilator-associated respiratory infection in severely ill patients: a prospective observational study

Content Provider	Springer Nature : BioMed Central
Author	Shahin, Jason Bielinski, Michael Guichon, Celine Flemming, Catherine Kristof, Arnold S
Abstract	Introduction Ventilator-associated respiratory infection (VARI) is an important cause of morbidity in critically-ill patients. Clinical trials performed in heterogeneous populations have suggested there are limited benefits from invasive diagnostic testing to identify patients at risk or to target antimicrobial therapy. However, multiple patient subgroups (for example, immunocompromised, antibiotic-treated) have traditionally been excluded from randomization. We hypothesized that a prospective surveillance study would better identify patients with suspected VARI (sVARI) at high risk for adverse clinical outcomes, and who might be specifically targeted in future trials. Methods We performed a prospective observational study in all patients ventilated for greater than 48 hours. sVARI was identified by surveillance for changes in white blood cell count, temperature, sputum, and/or new chest X-ray infiltrates. Indices of disease co-morbidity, as well as mortality, duration of mechanical ventilation, and length of hospital or ICU stay were correlated with sVARI. Results Of 1806 patients admitted to the ICU over 14 months, 267 were ventilated for greater than 48 hours, and 77 developed sVARI. Incidence of sVARI was associated with iatrogenic immunosuppression or admission for respiratory illness. Any sVARI, whether suspected ventilator-associated pneumonia (sVAP) or ventilator-associated tracheobronchitis (sVAT), was associated with increased length of stay and duration of mechanical ventilation. Conclusions Clinical surveillance for sVARI identifies patients at risk for increased morbidity. Iatrogenically immunosuppressed patients, a subgroup previously excluded from randomized clinical trials, represent a growing proportion of the critically-ill at risk for sVARI who might be targeted for future investigations on diagnostic or therapeutic modalities.
Related Links	https://ccforum.biomedcentral.com/counter/pdf/10.1186/cc13077.pdf
Ending Page	7
Page Count	7
Starting Page	1
File Format	HTM / HTML
ISSN	13648535
DOI	10.1186/cc13077
Journal	Critical Care
Issue Number	5
Volume Number	17
Language	English
Publisher	BioMed Central
Publisher Date	2013-10-22
Access Restriction	Open
Subject Keyword	Intensive Critical Care Medicine Emergency Medicine Mechanical Ventilation Hospital Length Adverse Clinical Outcome Bacteriological Diagnosis Abnormal White Blood Cell
Content Type	Text
Resource Type	Article
Subject	Critical Care and Intensive Care Medicine
Journal Impact Factor	8.8/2023
5-Year Journal Impact Factor	10.4/2023

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