OBJECTIVE: To determine the safety of using angiotensin II receptor blockers in patients who have experienced angioedema following treatment with angiotensin-converting enzyme (ACE) inhibitors. DATA SOURCES: Clinical literature identified through MEDLINE (January 1966-August 1999). Key search terms included angioneurotic edema, angiotensin-converting enzyme inhibitors, receptors-angiotensin, and losartan. DATA SYNTHESIS: ACE inhibitor-induced angioedema occurs with an incidence of 0.1-0.5%. Alternative therapy is necessary for patients who experience this potentially life-threatening adverse effect. Since angiotensin II receptor blockers do not increase concentrations of bradykinin, the proposed mechanism of ACE inhibitor-induced angioedema, they were presumed to be safe alternatives. Recent case reports, however, document angioedema following therapy with angiotensin II receptor blockers; 32% of the reported patients experienced a prior episode of angioedema attributed to ACE inhibitor therapy. CONCLUSIONS: Until the exact cause of both ACE inhibitor- and angiotensin II receptor blocker-induced angioedema is determined, angiotensin II receptor blockers should be used with extreme caution in patients with a prior history of angioedema.
OBJECTIVE: To determine the safety of using angiotensin II receptor blockers in patients who have experienced angioedema following treatment with angiotensin-converting enzyme (ACE) inhibitors. DATA SOURCES: Clinical literature identified through MEDLINE (January 1966-August 1999). Key search terms included angioneurotic edema, angiotensin-converting enzyme inhibitors, receptors-angiotensin, and losartan. DATA SYNTHESIS: ACE inhibitor-induced angioedema occurs with an incidence of 0.1-0.5%. Alternative therapy is necessary for patients who experience this potentially life-threatening adverse effect. Since angiotensin II receptor blockers do not increase concentrations of bradykinin, the proposed mechanism of ACE inhibitor-induced angioedema, they were presumed to be safe alternatives. Recent case reports, however, document angioedema following therapy with angiotensin II receptor blockers; 32% of the reported patients experienced a prior episode of angioedema attributed to ACE inhibitor therapy. CONCLUSIONS: Until the exact cause of both ACE inhibitor- and angiotensin II receptor blocker-induced angioedema is determined, angiotensin II receptor blockers should be used with extreme caution in patients with a prior history of angioedema.
Authors: Angelo Agostoni; Emel Aygören-Pürsün; Karen E Binkley; Alvaro Blanch; Konrad Bork; Laurence Bouillet; Christoph Bucher; Anthony J Castaldo; Marco Cicardi; Alvin E Davis; Caterina De Carolis; Christian Drouet; Christiane Duponchel; Henriette Farkas; Kálmán Fáy; Béla Fekete; Bettina Fischer; Luigi Fontana; George Füst; Roberto Giacomelli; Albrecht Gröner; C Erik Hack; George Harmat; John Jakenfelds; Mathias Juers; Lajos Kalmár; Pál N Kaposi; István Karádi; Arianna Kitzinger; Tímea Kollár; Wolfhart Kreuz; Peter Lakatos; Hilary J Longhurst; Margarita Lopez-Trascasa; Inmaculada Martinez-Saguer; Nicole Monnier; István Nagy; Eva Németh; Erik Waage Nielsen; Jan H Nuijens; Caroline O'grady; Emanuela Pappalardo; Vincenzo Penna; Carlo Perricone; Roberto Perricone; Ursula Rauch; Olga Roche; Eva Rusicke; Peter J Späth; George Szendei; Edit Takács; Attila Tordai; Lennart Truedsson; Lilian Varga; Beáta Visy; Kayla Williams; Andrea Zanichelli; Lorenza Zingale Journal: J Allergy Clin Immunol Date: 2004-09 Impact factor: 10.793
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