Q:

5/24/2012
15 yrs old male with wasp sting anaphylaxis: trouble breathing after bee sting 7-2008, taken to ER-RX'ed with Epi and Benadryl. Bee venom RAST panel: highly +++ yellow jacket/hornets & low + wasp; Tryptase elevated x 1 (11ng/ml), then normal (10ng/ml) 2010 venom skin tests: + bee also. Started VIT in 2010 and then stopped. Allergic reaction at first dose?

Currently grandmal sz d/o with 4 ER visits since 09/2011. Had concussion in August 2011; last sz 04/2012: currently RXed with Topamax 400mg BID + Ethosuximide- 750mg BID.

Is grand mal sz d/o absolute contraindication for re-starting VIT?

Worry about anaphylaxis and having grand mal sz if RX'ed with Benadryl/Epi etc?

A:

Thank you for your inquiry.

As always, the decision as to whether or not to begin any form of allergen immunotherapy in a patient who has other medical problems is one based upon an analysis of the risk/benefit ratio. In your case, in my opinion, the risk/benefit ratio favors the initiation of venom immunotherapy. The reasons for this are:

  • Anaphylactic events themselves are epileptogenic, and seizures can be a component of anaphylactic events. I think that the greater risk to your patient is a field sting-induced anaphylactic event rather than an event due to immunotherapy where he will be under your observation.
  • Hymenoptera allergy itself can be fatal, and therefore from that standpoint alone, I believe immunotherapy is justified in your patient.
  • I know of no consensus statement or evidence-based literature that suggests a seizure disorder is a contraindication to venom immunotherapy.

Thank you again for your inquiry and we hope this response is helpful to you.

Sincerely,
Phil Lieberman, M.D.

AAAAI - American Academy of Allergy Asthma & Immunology