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Angioedema: the role of ACE inhibitors and factors associated with poor clinical outcome.

AbstractOBJECTIVE:
We sought to study the prevalence of angiotensin-converting enzyme (ACE) inhibitors, a cause of angioedema, and investigate any association between clinical findings at the time of presentation and clinical outcome.
DESIGN AND SETTING:
Retrospective review of the charts of all patients presenting with angioedema to the emergency department at our tertiary referral teaching hospital or clinics over a 4-year period. The charts were reviewed for documentation of chief complaint(s), physical findings, medical treatment, need for laryngoscopy and/or endotracheal intubation, triage, and probable etiology.
RESULTS:
Of the 40 patients presenting with angioedema in this study, 15 cases were caused by ACE inhibitors. They were the most common cause of angioedema, accounting for 38% of all cases. The incidence of ACE inhibitor-induced angioedema is estimated to be 0.14%. More patients with angioedema secondary to ACE inhibitors had complaints of odynophagia (p < 0.02), whereas only patients with non-ACE inhibitor causes of angioedema presented with pruritus (p < 0.02). Furthermore, patients presenting with an acute reaction within 24 h of exposure to the causative agent were more likely to require inpatient monitoring (p < 0.05). Both odynophagia and edema of the tongue were significant predictors for undergoing laryngoscopy (p < 0.001 and p < 0.02, respectively) and admission to the hospital (p < 0.05).
CONCLUSION:
ACE inhibitors are the number one cause of acute angioedema in this tertiary referral teaching hospital. Odynophagia and tongue swelling at the time of presentation had significant implications for diagnostic intervention and admission to the hospital.
AuthorsR Agah, V Bandi, K K Guntupalli
JournalIntensive care medicine (Intensive Care Med) Vol. 23 Issue 7 Pg. 793-6 (Jul 1997) ISSN: 0342-4642 [Print] United States
PMID9290997 (Publication Type: Journal Article)
Chemical References
  • Angiotensin-Converting Enzyme Inhibitors
Topics
  • Acute Disease
  • Adolescent
  • Adult
  • Aged
  • Angioedema (chemically induced, diagnosis, therapy)
  • Angiotensin-Converting Enzyme Inhibitors (adverse effects)
  • Child
  • Child, Preschool
  • Emergency Service, Hospital
  • Female
  • Hospitalization
  • Humans
  • Incidence
  • Intubation, Intratracheal
  • Laryngoscopy
  • Male
  • Middle Aged
  • Prevalence
  • Prognosis
  • Retrospective Studies
  • Risk Factors
  • Time Factors

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