Hereditary angioedema, emergency management of attacks by a call center

OBJECTIVE: Hereditary angioedema (HAE) is a rare autosomal dominant disease characterized by recurrent, unpredictable, potentially life-threatening swelling. Objective is to assess the management of the acute HAE attacks in the real life setting through a call center in France.

METHODS: A pre-specified ancillary study of SOS-HAE, a cluster-randomized prospective multicenter trial, was conducted. HAE patients were recruited from 8 participating reference centers. The outcome of interest was the rate of hospitalization.

RESULTS: onerhundred patients were included. The median (quartile) age was 38 (29-53) years, and 66 (66%) were female. Eighty (80%) patients had HAE type I, 8 (8%) had HAE type II and 12 (12%) patients had FXII-HAE. Fifty-one (51%) patients had experienced at least one time the call center during the follow-up. Nine over 166 (5%) attacks for 9 different patients resulted in hospital admission to the hospital (in the short-stay unit, ie, <24h) during the follow-up period. During 2years, there were 166 calls to call center for 166 attacks. All attacks were treated at home after call center contact.

CONCLUSIONS: Use of emergency departments and hospitalizations are reduced by the use of a coordinated national call center in HAE after therapeutic education program that promoted self-administration of specific treatment and use of call to call center.

TRIAL REGISTRATION: identifier: NCT01679912. Copyright © 2019 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.

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