Evaluation of skin prick location on the forearm using a novel skin prick automated test device
Sven F. Seys, Senne Gorris, Saartje Uyttebroek, Wout Backaert, Mark Jorissen, Rik Schrijvers, Rembert Daems, Dirk Loeckx, Laura Van Gerven, Peter W. Hellings
The Skin Prick Test (SPT) is the gold standard for diagnosing allergic sensitization, though its accuracy can be influenced by operator-dependent factors. A novel Skin Prick Automated Test (SPAT) device has been developed to improve reproducibility and standardization. This study investigated whether prick location on the volar forearm affects test results.
A total of 118 volunteers underwent SPAT with nine histamine pricks and one glycerol control prick. Using SPAT imaging, a physician measured wheal diameters along both medial-lateral and proximal-distal axes. Analysis of 944 histamine pricks revealed no significant differences between locations (p = 0.41 and p = 0.73, respectively).
The findings confirm that prick location does not influence wheal size in SPAT testing, supporting the reliability and consistency of automated allergy testing. This reinforces SPAT’s potential to standardize skin prick testing and reduce operator variability in clinical practice.
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