Invasive aspergillosis in patients admitted to the intensive care unit with severe influenza: a retrospective cohort study.

BACKGROUND: Invasive pulmonary aspergillosis typically occurs in an immunocompromised host. For almost a century, influenza has been known to set up for bacterial superinfections, but recently patients with severe influenza were also reported to develop invasive pulmonary aspergillosis. We aimed to measure the incidence of invasive pulmonary aspergillosis over several seasons in patients with influenza pneumonia in the intensive care unit (ICU) and to assess whether influenza was an independent risk factor for invasive pulmonary aspergillosis. METHODS: We did a retrospective multicentre cohort study. Data were collected from adult patients with severe influenza admitted to seven ICUs across Belgium and The Netherlands during seven influenza seasons. Patients were older than 18 years, were admitted to the ICU for more than 24 h with acute respiratory failure, had pulmonary infiltrates on imaging, and a confirmed influenza infection based on a positive airway PCR test (influenza cohort). We used logistic regression analyses to determine if influenza was independently associated with invasive pulmonary aspergillosis in non-immunocompromised (ie, no European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group and the National Institute of Allergy and Infectious Diseases Mycoses Study Group [EORTC/MSG] host factor) influenza-positive patients (influenza case group) compared with non-immunocompromised patients with severe community-acquired pneumonia who had a negative airway influenza PCR test (control group). FINDINGS: Data were collected from patients admitted to the ICU between Jan 1, 2009, and June 30, 2016. Invasive pulmonary aspergillosis was diagnosed in 83 (19%) of 432 patients admitted with influenza (influenza cohort), a median of 3 days after admission to the ICU. The incidence was similar for influenza A and B. For patients with influenza who were immunocompromised, incidence of invasive pulmonary aspergillosis was as high as 32% (38 of 117 patients), whereas in the non-immunocompromised influenza case group, incidence was 14% (45 of 315 patients). Conversely, only 16 (5%) of 315 patients in the control group developed invasive pulmonary aspergillosis. The 90-day mortality was 51% in patients in the influenza cohort with invasive pulmonary aspergillosis and 28% in the influenza cohort without invasive pulmonary aspergillosis (p=0·0001). In this study, influenza was found to be independently associated with invasive pulmonary aspergillosis (adjusted odds ratio 5·19; 95% CI 2·63-10·26; p<0·0001), along with a higher APACHE II score, male sex, and use of corticosteroids. INTERPRETATION: Influenza was identified as an independent risk factor for invasive pulmonary aspergillosis and is associated with high mortality. Future studies should assess whether a faster diagnosis or antifungal prophylaxis could improve the outcome of influenza-associated aspergillosis. FUNDING: None.

Acute intoxications: differences in management between six Dutch hospitals.

CONTEXT: Acute intoxications are frequently seen in Dutch hospitals. Based on single-centre studies and the fact that there are no clear guidelines, we hypothesised that hospital admission of acute intoxications may vary. Furthermore, decontamination treatment of poisonings may differ between hospitals, as earlier studies showed that adherence to international guidelines concerning decontamination may be poor. OBJECTIVE: We aim to identify possible variations in Dutch hospital admission and decontamination treatment of patients with acute intoxications. MATERIALS AND METHODS: Data on acute intoxications was retrospectively collected from patient records from the emergency departments of six Dutch hospitals. All patients older than 14 years who presented between 1 January 2008 and 31 December 2008 were included in the study. RESULTS: The percentage of suicide attempts differed significantly between the hospitals (25-73%, p < 0.0001) as equally the percentage of intoxications with drugs of abuse (18-61%, p < 0.0001). Marked differences in admission rates were found (27-78%, p < 0.0001) and these differences remained even when intoxications because of suicide attempts and drugs of abuse were analysed separately (admission rate of 52-87%, p < 0.0001 and 8-71%, p < 0.0001 respectively). Reported consultation with the National Poisons Information Centre differed between hospitals (range 0% to 80-100%). No statistical differences were found between hospitals for the use of activated charcoal (16.1-42.5%, p = 0.037). Gastric lavage was used infrequently in all hospitals. (6.6-16.7%, p = 0.614). DISCUSSION AND CONCLUSION: The admission rate of patients with an acute intoxication varies considerably, especially in the case of intoxications with drugs of abuse. Consultations with the National Poisons Information Centre differed between the six hospitals. Rates of decontamination did not vary, which may indicate adherence to guidelines by the American Academy of Clinical Toxicology, European Association of Poisons Centres and Clinical Toxicologists. National guidelines or admission algorithms may reduce variations in poisoning management and make the care for these patients more efficient.