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Predictors of airway intervention in acute supraglottitis (AS), a recent 7- year experience.
American Journal of Otolaryngology 2021 November
AIMS: Acute supraglottitis (AS) can be a life threatening infection that may lead to sudden airway obstruction. Thankfully, paediatric instances have decreased with public health vaccination programmes. Owing to the nature of the location of pathology, this time sensitive emergency requires astute clinical acumen and awareness of early warning signs. This study aimed to i) determine if the incidence of AS has changed over time; ii) investigate geographical and seasonal variation of infection; iii) identify features of presentation which may predict airway intervention; iv) assess efficacy of treatment and make recommendations for management.
MATERIALS AND METHOD: All adult patients admitted to a tertiary hospital with the diagnosis of acute supraglottitis between 2013 and 2021 were included. Diagnosis was confirmed with flexible nasendoscopy and consultant review. Demographics, management and outcomes were recorded. Statistical analysis was performed by calculating means and standard deviation for descriptive purposes. Fischer's exact test and two tailed t-test for categorical and continuous variables respectively. Results were deemed significant if P values of less than or equal to 0.05 were calculated.
RESULTS: Forty-three adults were identified. Five patients (11.6%) required airway intervention. Stridor, respiratory distress and CRP of >100 mg/L were noted to be significant predictive factors for airway intervention. Intubated patients had a significantly longer hospital stay. Regions with a higher population density were noted to have a higher incidence but this did not prove to be significant.
CONCLUSION: This is the largest study of AS in Ireland to date. There is a trend towards increasing incidence of acute supraglottitis in adults. Factors such as stridor, respiratory distress and elevated CRP should alert the clinician to the possible need for airway intervention. Acute supraglottitis is more common in higher density populated regions.
MATERIALS AND METHOD: All adult patients admitted to a tertiary hospital with the diagnosis of acute supraglottitis between 2013 and 2021 were included. Diagnosis was confirmed with flexible nasendoscopy and consultant review. Demographics, management and outcomes were recorded. Statistical analysis was performed by calculating means and standard deviation for descriptive purposes. Fischer's exact test and two tailed t-test for categorical and continuous variables respectively. Results were deemed significant if P values of less than or equal to 0.05 were calculated.
RESULTS: Forty-three adults were identified. Five patients (11.6%) required airway intervention. Stridor, respiratory distress and CRP of >100 mg/L were noted to be significant predictive factors for airway intervention. Intubated patients had a significantly longer hospital stay. Regions with a higher population density were noted to have a higher incidence but this did not prove to be significant.
CONCLUSION: This is the largest study of AS in Ireland to date. There is a trend towards increasing incidence of acute supraglottitis in adults. Factors such as stridor, respiratory distress and elevated CRP should alert the clinician to the possible need for airway intervention. Acute supraglottitis is more common in higher density populated regions.
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