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Browsing by Subject "High-flow nasal cannula"

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    Nocturnal High-Flow Nasal Cannula Therapy and Sinonasal Symptoms During Cystic Fibrosis Exacerbations
    (Mary Ann Liebert, 2023) Davis, Michael D.; Brockbank, Justin; Hayden, Ryan; Schechter, Michael S.; Rubin, Bruce K.; Pediatrics, School of Medicine
    Background: Both nasal obstruction and sleep disturbance are common in patients with cystic fibrosis (CF). In patients with obstructive sleep apnea (OSA), studies suggest that these conditions are related and that nasal congestion improves with CPAP therapy. We hypothesized that subjects admitted to hospital for therapy of an exacerbation of CF would have both nasal symptoms and sleep disturbance and that these would improve with the initiation of nocturnal high-flow nasal cannula therapy (HFNC). Methods: Twenty-five subjects with an exacerbation of CF were enrolled to randomly receive either 5 d of nocturnal HFNC at 20 L/min in the treatment group or 5 L/min of nocturnal nasal cannula air at ambient temperature and humidity in the low-flow group. On the first and last day of the study, the Sino-Nasal Outcome Test (SNOT-20) was administered to evaluate nasal symptoms, and sleep quality was measured using the Actiwatch 2. Results: Fifteen subjects completed the study (6 HFNC, 9 low flow). We confirmed that subjects had significant sleep disturbance that did not improve over the 5 d of the study. Subjects also had disturbing nasal symptoms that significantly improved only in those receiving HFNC (pre 14 [20] vs post 6 [13], P = .027). Conclusions: Similar to what has been reported in older subjects with OSA, nocturnal HFNC improves sinonasal symptoms in subjects with an exacerbation of CF. There was no measurable effect on sleep quality, which may be due to the short duration of the study, or to subjects being evaluated while being treated in a hospital setting.
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    The Use and Duration of Preintubation Respiratory Support Is Associated With Increased Mortality in Immunocompromised Children With Acute Respiratory Failure
    (Wolters Kluwer, 2022) Lindell, Robert B.; Fitzgerald, Julie C.; Rowan, Courtney M.; Flori, Heidi R.; Di Nardo, Matteo; Napolitano, Natalie; Traynor, Danielle M.; Lenz, Kyle B.; Emeriaud, Guillaume; Jeyapalan, Asumthia; Nishisaki, Akira; National Emergency Airway Registry for Children (NEAR4KIDS); Pediatric Acute Lung Injury and Sepsis Investigators (PALISI) Network; Pediatrics, School of Medicine
    Objectives: To determine the association between preintubation respiratory support and outcomes in patients with acute respiratory failure and to determine the impact of immunocompromised (IC) diagnoses on outcomes after adjustment for illness severity. Design: Retrospective multicenter cohort study. Setting: Eighty-two centers in the Virtual Pediatric Systems database. Patients: Children 1 month to 17 years old intubated in the PICU who received invasive mechanical ventilation (IMV) for greater than or equal to 24 hours. Interventions: None. Measurements and main results: High-flow nasal cannula (HFNC) or noninvasive positive-pressure ventilation (NIPPV) or both were used prior to intubation in 1,825 (34%) of 5,348 PICU intubations across 82 centers. When stratified by IC status, 50% of patients had no IC diagnosis, whereas 41% were IC without prior hematopoietic cell transplant (HCT) and 9% had prior HCT. Compared with patients intubated without prior support, preintubation exposure to HFNC (adjusted odds ratio [aOR], 1.33; 95% CI, 1.10-1.62) or NIPPV (aOR, 1.44; 95% CI, 1.20-1.74) was associated with increased odds of PICU mortality. Within subgroups of IC status, preintubation respiratory support was associated with increased odds of PICU mortality in IC patients (HFNC: aOR, 1.50; 95% CI, 1.11-2.03; NIPPV: aOR, 1.76; 95% CI, 1.31-2.35) and HCT patients (HFNC: aOR, 1.75; 95% CI, 1.07-2.86; NIPPV: aOR, 1.85; 95% CI, 1.12-3.02) compared with IC/HCT patients intubated without prior respiratory support. Preintubation exposure to HFNC/NIPPV was not associated with mortality in patients without an IC diagnosis. Duration of HFNC/NIPPV greater than 6 hours was associated with increased mortality in IC HCT patients (HFNC: aOR, 2.41; 95% CI, 1.05-5.55; NIPPV: aOR, 2.53; 95% CI, 1.04-6.15) and patients compared HCT patients with less than 6-hour HFNC/NIPPV exposure. After adjustment for patient and center characteristics, both preintubation HFNC/NIPPV use (median, 15%; range, 0-63%) and PICU mortality varied by center. Conclusions: In IC pediatric patients, preintubation exposure to HFNC and/or NIPPV is associated with increased odds of PICU mortality, independent of illness severity. Longer duration of exposure to HFNC/NIPPV prior to IMV is associated with increased mortality in HCT patients.
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