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עמוד בית
Wed, 17.07.24

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September 2015
Toker Ori MD, Tal Yuval MD PhD, Daher Salech MD and Shalit Meir MD
December 2008
S. Halevy, N. Grossman

Background: Multiple drug allergy syndrome is a rarely reported clinical condition characterized by an adverse reaction to more than one different class of pharmacologically and structurally unrelated drugs. The pathogenesis may involve immediate-type or delayed-type hypersensitivity.

Objectives: To further characterize patients with MDA[1] in terms of the type of CADR, drug intake and clinical drug suspicion.

Methods: The study group comprised 12 patients (6 males, 6 females) with CADRs[2] showing in vitro drug-induced IFNγ[3] release for multiple drugs, suggesting the presence of MDA. The diagnostic role of in vitro IFNγ release in identifying the culprit drugs was evaluated in terms of clinical data and the results of in vivo tests (withdrawal and/or challenge tests) with the offending drugs.

Results: Clinical relevance was attributed to in vitro drug-induced IFNγ release towards multiple drugs in this series of 12 patients with a variety of CADRs, implying MDA. The results of in vivo tests for the offending drugs confirmed the diagnosis. The main causative agents responsible were antibiotics and non-steroidal anti-inflammatory drugs.

Conclusions: The study further supports the role of a T cell-mediated mechanism in the pathogenesis of MDA. The in vitro drug-induced IFNγ release test may serve as a laboratory tool to identify the culprit drugs associated with this allergy.  

[1] MDA = multiple drug allergy

[2] CADR = cutaneous adverse drug reaction

[3] IFNg = interferon-gamma

March 2001
Eduardo Shahar, MD and Margalit Lorber, MD

Background: Asthma, allergic rhinitis, and atopic derma­titis are leading causes of chronic diseases in developed countries, with at least one allergic condition troubling 10 to 20% of the general population. The few studies performed in Israel determined the prevalence of allergic conditions in selected populations (schoolchildren and soldiers) no study representative of the general population has previously been done.

Objectives: To determine the prevalence of allergic conditions in the general population in Israel and the differences between ethnic and socioeconomic groups.

Method: Using a computer-assisted telephone interview, a telephone questionnaire was conducted in a representative sample of the general Israeli population.

Results: Of the population studied, 140/a claimed to have bronchial asthma, 14% allergic rhinitis, and 6% other allergic conditions. Prevalence rates were higher in the Israeli Arab population and in those with low income and low education levels. Of those with allergic conditions, 58% were treated by a primary physician, 32% were not treated at all, and only 10% were treated by a different specialist physician.

Conclusions: The prevalence of allergic conditions in this study concurs with that found by other studies in developed countries. Allergic conditions are higher in the Israeli Arab population and in those with low income and low education level.

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