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Case Reports
. 2020 Mar;75(3):151-153.

[ACE-inhibition and bradykinin-mediated angioedema]

[Article in French]
D Ndjekembo Shango  1 , O Simonet  1 , F Vallot  1 , F Defendi  2 , M De Kock  1
Affiliations
  • PMID: 32157838
Case Reports

[ACE-inhibition and bradykinin-mediated angioedema]

[Article in French]
D Ndjekembo Shango et al. Rev Med Liege. 2020 Mar.

Abstract
in English, French

Angiotensin converting enzyme inhibitors (ACE-i) are the most common cause of bradykininin angioedema. These bradykinin-mediated angioedemas are sometimes confused with histamine-induced angioedema, which may cause a late diagnosis and hence poor initial management, deleterious to the patient. This report describes a patient with a bradykinin-mediated angioedema soon after the initiation of perindopril, with laryngeal involvement requiring orotracheal intubation in emergency. The diagnosis was confirmed later and the assay of the activity of the enzymes involved in the catabolism of kinins - aminopeptidase P (APP), carboxypeptidase N (CPN) and Angiotensin-Converting Enzyme (ACE) - demonstrated a decrease of activity of both APP and ACE. As the diagnosis was not made initially, the specific treatments - concentrate of C1 inhibitor or antagonist of the B2 receptor of bradykinin (Icatibant) - were not administered. Any angioedema occurring during a treatment with ACE-i should be considered as a bradykinin-mediated angioedema.

Les inhibiteurs de l’enzyme de conversion de l’angiotensine (IEC) sont la cause la plus fréquente d’angioedème bradykininique. Ceux-ci se confondent facilement avec l’angioedème histaminique, pouvant causer un retard diagnostique et donc une mauvaise prise en charge initiale, délétère pour le patient. Nous rapportons le cas d’un patient présentant un angioedème induit par le périndopril, avec une atteinte laryngée nécessitant une intubation orotrachéale en urgence. Le diagnostic a été posé a posteriori et le dosage des activités des enzymes du catabolisme des kinines - aminopeptidase P (APP), carboxypeptidase N (CPN) et enzyme de conversion de l’angiotensine (ECA) - a démontré une diminution des activités APP et ECA. Le diagnostic n’étant pas posé initialement, les traitements spécifiques - concentré de C1 inhibiteur ou antagoniste des récepteurs B2 de la bradykinine (Icatibant) - n’ont pas été administrés. Tout angioedème sous IEC doit être considéré comme un angioedème bradykininique.

Keywords: ACE inhibitor; Bradykinin; Perindopril; Angioedema.

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