TY - JOUR
T1 - Acute respiratory failure in immunocompromised patients: outcome and clinical features according to neutropenia status
AU - Mokart, Djamel
AU - Darmon, Michael
AU - Schellongowski, Peter
AU - Pickkers, Peter
AU - Soares, Marcio
AU - Rello, Jordi
AU - Bauer, Philippe R.
AU - Van De Louw, Andry
AU - Lemiale, Virginie
AU - Taccone, Fabio Silvio
AU - Martin-Loeches, Ignacio
AU - Salluh, Jorge
AU - Rusinova, Katerina
AU - Mehta, Sangeeta
AU - Antonelli, Massimo
AU - Kouatchet, Achille
AU - Barratt-Due, Andreas
AU - Valkonen, Miia
AU - Landburg, Precious Pearl
AU - Bukan, Ramin Brandt
AU - Pène, Frédéric
AU - Metaxa, Victoria
AU - Burghi, Gaston
AU - Saillard, Colombe
AU - Nielsen, Lene B.
AU - Canet, Emmanuel
AU - Bisbal, Magali
AU - Azoulay, Elie
PY - 2020
Y1 - 2020
N2 - Background: The impact of neutropenia in critically ill immunocompromised patients admitted in a context of acute respiratory failure (ARF) remains uncertain. The primary objective was to assess the prognostic impact of neutropenia on outcomes of these patients. Secondary objective was to assess etiology of ARF according to neutropenia.
Methods: We performed a post hoc analysis of a prospective multicenter multinational study from 23 ICUs belonging to the Nine-I network. Between November 2015 and July 2016, all adult immunocompromised patients with ARF admitted to the ICU were included in the study. Adjusted analyses included: (1) a hierarchical model with center as random effect; (2) propensity score (PS) matched cohort; and (3) adjusted analysis in the matched cohort.
Results: Overall, 1481 patients were included in this study of which 165 had neutropenia at ICU admission (11%). ARF etiologies distribution was significantly different between neutropenic and non-neutropenic patients, main etiologies being bacterial pneumonia (48% vs 27% in neutropenic and non-neutropenic patients, respectively). Initial oxygenation strategy was standard supplemental oxygen in 755 patients (51%), high-flow nasal oxygen in 165 (11%), non-invasive ventilation in 202 (14%) and invasive mechanical ventilation in 359 (24%). Before adjustment, hospital mortality was significantly higher in neutropenic patients (54% vs 42%; p = 0.006). After adjustment for confounder and center effect, neutropenia was no longer associated with outcome (OR 1.40, 95% CI 0.93-2.11). Similar results were observed after matching (52% vs 46%, respectively; p = 0.35) and after adjustment in the matched cohort (OR 1.04; 95% CI 0.63-1.72).
Conclusion: Neutropenia at ICU admission is not associated with hospital mortality in this cohort of critically ill immunocompromised patients admitted for ARF. In neutropenic patients, main ARF etiologies are bacterial and fungal infections.
AB - Background: The impact of neutropenia in critically ill immunocompromised patients admitted in a context of acute respiratory failure (ARF) remains uncertain. The primary objective was to assess the prognostic impact of neutropenia on outcomes of these patients. Secondary objective was to assess etiology of ARF according to neutropenia.
Methods: We performed a post hoc analysis of a prospective multicenter multinational study from 23 ICUs belonging to the Nine-I network. Between November 2015 and July 2016, all adult immunocompromised patients with ARF admitted to the ICU were included in the study. Adjusted analyses included: (1) a hierarchical model with center as random effect; (2) propensity score (PS) matched cohort; and (3) adjusted analysis in the matched cohort.
Results: Overall, 1481 patients were included in this study of which 165 had neutropenia at ICU admission (11%). ARF etiologies distribution was significantly different between neutropenic and non-neutropenic patients, main etiologies being bacterial pneumonia (48% vs 27% in neutropenic and non-neutropenic patients, respectively). Initial oxygenation strategy was standard supplemental oxygen in 755 patients (51%), high-flow nasal oxygen in 165 (11%), non-invasive ventilation in 202 (14%) and invasive mechanical ventilation in 359 (24%). Before adjustment, hospital mortality was significantly higher in neutropenic patients (54% vs 42%; p = 0.006). After adjustment for confounder and center effect, neutropenia was no longer associated with outcome (OR 1.40, 95% CI 0.93-2.11). Similar results were observed after matching (52% vs 46%, respectively; p = 0.35) and after adjustment in the matched cohort (OR 1.04; 95% CI 0.63-1.72).
Conclusion: Neutropenia at ICU admission is not associated with hospital mortality in this cohort of critically ill immunocompromised patients admitted for ARF. In neutropenic patients, main ARF etiologies are bacterial and fungal infections.
KW - Acute respiratory failure, immunocompromised
KW - Acute respiratory failure, immunocompromised
UR - http://hdl.handle.net/10807/166451
U2 - 10.1186/s13613-020-00764-7
DO - 10.1186/s13613-020-00764-7
M3 - Meeting Abstract
SN - 2110-5820
SP - ---
JO - Annals of Intensive Care
JF - Annals of Intensive Care
ER -