[Skin prick tests with allergens in general practice]

Area of Science:

• Allergy diagnostics
• General practice medicine
• Clinical immunology

Background:

• Skin prick testing (SPT) is crucial for diagnosing specific allergies.
• Accurate SPT performance is essential for reliable diagnosis and appropriate patient management.
• Evaluating the feasibility of SPT in general practice settings is important for improving healthcare accessibility.

Purpose of the Study:

• To assess the performance and reliability of skin prick tests conducted by general practitioners (GPs) compared to allergy specialists.
• To determine if GPs can achieve comparable results to specialized allergy clinics after training.
• To evaluate the utility of SPT as a diagnostic tool in primary care for allergic diseases.

Main Methods:

• 109 patients underwent skin prick tests for specific pollen allergens (birch, timothy, mugwort) by eleven GPs.
• A follow-up skin prick test was performed on all patients by an experienced allergy nurse, serving as the reference standard.
• Comparison of results between GP and nurse testing, analyzing agreement, marginal differences, and false positives/negatives.

Main Results:

• High concordance was observed: 83% of skin prick tests showed identical size and class compared to the reference standard.
• 14% of tests had marginal differences, while only 1% were falsely positive and 1% falsely negative.
• These findings indicate a high level of accuracy and reliability in GP-performed skin prick tests.

Conclusions:

• General practitioners can effectively perform and classify skin prick tests for specific pollen allergies after brief training.
• Skin prick testing is a valuable supplement to clinical examination in general practice for diagnosing allergic rhinoconjunctivitis and asthma.
• This supports the use of SPT in primary care for timely diagnosis and appropriate referrals to specialized allergy clinics.