Angioedema of the upper aerodigestive tract: risk factors associated with airway intervention and management algorithm. Issue 3 (10th January 2014)

• Record Type: Journal Article
• Authors: Brook, Christopher D.; Devaiah, Anand K.; Davis, Elizabeth M.
• Is Part Of: International forum of allergy & rhinology. Volume 4:Issue 3(2014:Mar.)
• Page Start: 239
• Page End: 245
• Publication Date: 2014-01-10
• Subjects: 617.51005
• DOI: 10.1002/alr.21260
• Languages: English
• ISSNs: 2042-6976

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="alr21260-sec-0010" sec-type="section"> <title>Background</title> <p>Angioedema of the upper aerodigestive tract can lead to significant airway obstruction. To date no articles have delineated risk factors for progression after initial evaluation.</p> </sec> <sec id="alr21260-sec-0020" sec-type="section"> <title>Methods</title> <p>This article presents the results of a retrospective study of patients with angioedema at a single institution. Patients included were consecutive otolaryngology consultations for angioedema in the emergency department (ED) from 1999 to 2003. All patients were evaluated by an otolaryngologist and underwent fiber‐optic laryngoscopy, which was repeated serially depending on findings. Data was collected on demographics, comorbidities, intubation, disposition, and progression of angioedema.</p> </sec> <sec id="alr21260-sec-0030" sec-type="section"> <title>Results</title> <p>A total of 177 patients were included in the study: 32 (18%) patients required intubation; 25 (14%) on initial presentation and 7 (4%) who progressed from an initially stable airway to requiring intervention after reevaluation. Analysis of variance (ANOVA) demonstrated a statistically significant variance between location of edema and rate of intubation, with higher rates in the pharynx and larynx vs the lip and face. Patients who required intubation after progression between serial evaluations were statistically more likely to have edema that involved deeper portions of the aerodigestive tract. Patients who required intubation were statistically more likely to be older (average age 61.8 vs 55.1 years, <italic>p</italic> = 0.03).</p> </sec> <sec id="alr21260-sec-0040" sec-type="section"> <title>Conclusion</title> <p>In this large series of patients managed for aerodigestive angioedema we demonstrate risk factors associated with airway intervention, and risk factors associated with clinical progression on serial examination to airway intervention. In addition, we demonstrate a successful management algorithm for patients with aerodigestive angioedema.</p> </sec> </abstract>