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Outcome of a latex avoidance program in a high-risk population for latex allergy - a five-year follow-up study
1Department of Dermatology and Venereology, University of Innsbruck, Austria. norbert.reider@uibk.ac.at
Insights
Children with shunted hydrocephalus can decrease latex-specific IgE through medical latex avoidance strategies. Primary prevention is crucial as sensitization often occurs in early childhood.
Area of Science:
- Pediatric Allergy and Immunology
- Neurosurgery and Neurology
- Public Health
Background:
- Children with shunted hydrocephalus face a high risk of immediate-type latex allergy.
- Limited data exist on effective preventive or therapeutic strategies for latex allergy in this population.
Purpose of the Study:
- To assess the effectiveness of latex avoidance in children with shunted hydrocephalus.
- To evaluate the impact of sensitization status and compliance with avoidance measures.
Main Methods:
- 131 children with shunted hydrocephalus were screened for latex sensitization (skin prick test, IgE) in 1995.
- Patients and parents received latex avoidance instructions; healthcare providers were advised on latex-free interventions.
- 100 patients were re-evaluated in 2000 to assess changes in sensitization and compliance with prophylaxis.
Main Results:
- In 1995, 30% of re-evaluated patients were sensitized; by 2000, most remained negative or showed decreased IgE levels.
- Among sensitized patients who adhered to prophylaxis, 47.1% improved and 26.5% remained negative.
- Medical prevention was more impactful than home-based prevention; no significant correlation with avoidance was found in previously unsensitized subjects.
Conclusions:
- Secondary prevention, particularly medical interventions, can reduce latex-specific IgE in sensitized children with hydrocephalus.
- Compliance with prophylaxis, especially by sensitized individuals, is key to improving outcomes.
- Primary prevention of latex sensitization in early childhood is essential due to the high risk in this vulnerable group.
Background:
Children with a shunted hydrocephalus are at highest risk for developing an immediate type allergy to latex. Limited data are available for preventive or therapeutical approaches.
Objective:
To evaluate the effectiveness of latex avoidance, with special regard to status of sensitization and compliance.
Methods:
In 1995, 131 children with a shunted hydrocephalus were screened for sensitization to latex by skin prick test and determination of specific IgE. Patients and parents were instructed on latex-avoiding strategies. Hospital physicians, family doctors and dentists were advised to perform further surgical and other medical interventions under latex-free conditions. In 2000, 100 of these 131 patients were re-evaluated according to the same testing procedures. Special attention was directed at the extent prophylaxis had been performed.
Results:
In 1995, 30/100 patients re-evaluable in 2000 proved sensitized to latex, 70 had negative testing results. In 2000, 64/70 patients were still negative, six had meanwhile developed latex-specific IgE. Seven out of thirty subjects with former positive testing had changes within the same RAST-class, 20 showed a decline of at least one RAST-class, whereas in three cases an increase of latex-specific IgE was found. However, only 34 patients, mainly those being already sensitized, had thoroughly followed both medical and private prophylaxis. Within this group, 16 subjects (47.1%) had improved and another nine (26.5%) were still negative. Only three (8.8%) already previously sensitized patients presented with a further increase of latex-specific IgE. Medical prevention contributed more to the outcome than home prevention. No statistically significant correlation with latex-avoidance was observed, however, in previously unsensitized subjects. Underlying disease, atopy, number of operations, and age did not prove as significant variables.
Conclusion:
Secondary prevention results in a decrease of specific IgE in latex-sensitized patients with hydrocephalus. This is due to medical more than home prophylaxis. Sensitization obviously occurs mainly in early childhood, thus primary prevention remains to be the main target.