What is anaphylaxis?

Back to Healthcare Professionals

What is anaphylaxis?

Definition

Anaphylaxis is a life-threatening allergic reaction characterised by: [1]
  • sudden onset

AND

  • rapid progression of signs and symptoms

AND

  • involving two or more organ systems

Incident Rates

Although there is limited data on incident rates internationally, a review of 5843 epidemiological studies on behalf of the EAACI concluded that  Anaphylaxis is a common problem, affecting an estimated 1 in 300 of the European population at some time in their lives. [2] The same European review highlighted 22% of emergency anaphylaxis cases involved children [2]  
  1. HSE Anaphylaxis Guidelines, September 2016. Available via HSE Anaphylaxis guidelines, 2016
  2. Panesar SS, Javad S, de Silva D, et al. A on behalf of the EAACI Food Allergy and Anaphylaxis Group. The epidemiology of anaphylaxis in Europe: a systematic review. Allergy 2014; 68: 1353–1361. Available via Panesar S et al, The epidemiology of anaphylaxis in Europe, 2014

( ! ) Fatal error: Uncaught Error: Call to undefined function get_field() in /home/anapen/public_html/wp-content/themes/anapen/single.php on line 66
( ! ) Error: Call to undefined function get_field() in /home/anapen/public_html/wp-content/themes/anapen/single.php on line 66
Call Stack
#TimeMemoryFunctionLocation
10.0003347112{main}( ).../index.php:0
20.0004347560require( '/home/anapen/public_html/wp-blog-header.php' ).../index.php:17
30.48585938744require_once( '/home/anapen/public_html/wp-includes/template-loader.php' ).../wp-blog-header.php:19
40.49305936664include( '/home/anapen/public_html/wp-content/themes/anapen/single.php' ).../template-loader.php:74