Author: Nguyen, Paul L; Osman, Heba; Watza, Donovan; Khicher, Suman; Sharma, Aditi; Dyson, Greg; Saydain, Ghulam; Soubani, Ayman
Title: High-flow nasal cannula therapy in a predominantly African American population with COVID-19 associated acute respiratory failure Cord-id: qsbk5omc Document date: 2021_9_21
ID: qsbk5omc
Snippet: IMPORTANCE: Use of non-invasive respiratory modalities in COVID-19 has the potential to reduce rates of intubation and mortality in severe disease however data regarding the use of high-flow nasal cannula (HFNC) in this population is limited. OBJECTIVE: To interrogate clinical and laboratory features of SARS-CoV-2 infection associated with high-flow failure. DESIGN: We conducted a retrospective cohort study to evaluate characteristics of high-flow therapy use early in the pandemic and interrogat
Document: IMPORTANCE: Use of non-invasive respiratory modalities in COVID-19 has the potential to reduce rates of intubation and mortality in severe disease however data regarding the use of high-flow nasal cannula (HFNC) in this population is limited. OBJECTIVE: To interrogate clinical and laboratory features of SARS-CoV-2 infection associated with high-flow failure. DESIGN: We conducted a retrospective cohort study to evaluate characteristics of high-flow therapy use early in the pandemic and interrogate factors associated with respiratory therapy failure. SETTING: Multisite single centre hospital system within the metropolitan Detroit region. PARTICIPANTS: Patients from within the Detroit Medical Center (n=104, 89% African American) who received HFNC therapy during a COVID-19 admission between March and May of 2020. PRIMARY OUTCOME: HFNC failure is defined as death or intubation while on therapy. RESULTS: Therapy failure occurred in 57% of the patient population, factors significantly associated with failure centred around markers of multiorgan failure including hepatic dysfunction/transaminitis (OR=6.1, 95% CI 1.9 to 19.4, p<0.01), kidney injury (OR=7.0, 95% CI 2.7 to 17.8, p<0.01) and coagulation dysfunction (OR=4.5, 95% CI 1.2 to 17.1, p=0.03). Conversely, comorbidities, admission characteristics, early oxygen requirements and evaluation just prior to HFNC therapy initiation were not significantly associated with success or failure of therapy. CONCLUSIONS: In a population disproportionately affected by COVID-19, we present key indicators of likely HFNC failure and highlight a patient population in which aggressive monitoring and intervention are warranted.
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