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Acute respiratory failure in immunocompromised patients: outcome and clinical features according to neutropenia status

Author

Listed:
  • Djamel Mokart
  • Michael Darmon
  • Peter Schellongowski
  • Peter Pickkers
  • Marcio Soares
  • Jordi Rello
  • Philippe P.R. Bauer
  • Andry Van de Louw
  • Virginie Lemiale
  • Fabio Silvio Taccone
  • Ignacio Martin-Loeches
  • Jorge Salluh
  • Katerina Rusinova
  • Sangeeta Mehta
  • Massimo Antonelli
  • Achille Kouatchet
  • Andreas Barratt-Due
  • Miia Valkonen
  • Precious Pearl Landburg
  • Ramin Brandt Bukan
  • Frédéric Pène
  • Victoria Metaxa
  • Gastón Burghi
  • Colombe Saillard
  • Lene L.B. Nielsen
  • Emmanuel Canet
  • Magali Bisbal
  • Elie Azoulay

Abstract

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.

Suggested Citation

  • Djamel Mokart & Michael Darmon & Peter Schellongowski & Peter Pickkers & Marcio Soares & Jordi Rello & Philippe P.R. Bauer & Andry Van de Louw & Virginie Lemiale & Fabio Silvio Taccone & Ignacio Marti, 2020. "Acute respiratory failure in immunocompromised patients: outcome and clinical features according to neutropenia status," ULB Institutional Repository 2013/313967, ULB -- Universite Libre de Bruxelles.
    • Handle: RePEc:ulb:ulbeco:2013/313967
    Note: SCOPUS: ar.j
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    References listed on IDEAS

    as
    1. Adrien Contejean & Fabrice Bruneel & Antoine Rabbat & Pierre Perez & Anne-Pascale Meert & Dominique Benoit & Rébecca Hamidfar & Michael Darmon & Mercé Jourdain & Anne Renault & Benoît Schlemmer & Virg, 2016. "Increased mortality in hematological malignancy patients with acute respiratory failure from undetermined etiology: a Groupe de Recherche en Réanimation Respiratoire en Onco-Hématologique (Grrr-OH) st," ULB Institutional Repository 2013/243903, ULB -- Universite Libre de Bruxelles.
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