What is persistent anaphylaxis?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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Answer

Persistent anaphylaxis, anaphylaxis that may last from 5-32 hours, occurred in 7 of 25 subjects (28%) in the Stark and Sullivan report, with 2 fatalities. [27] Of 13 subjects analyzed in a report on fatal or near-fatal anaphylaxis to foods, 3 (23%) similarly experienced persistent anaphylaxis. [28] Retrospective data from other investigators, however, suggest that persistent anaphylaxis is uncommon.


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