There are several signs of allergic rhinitis which, helped with skin prick and blood tests, can diagnose the problem. However, an endoscopic, on-the-spot test may surmount clinical uncertainties and invasive testing to acquire the same goal. In this study, the authors have assessed the colour changes of the nasal mucosa and applied this as an objective test for the diagnosis of allergic rhinitis. The red, blue and green components of the colour (RGB values) of the nasal mucosa were endoscopically assessed in a study group of 73 patients who scored more than five in Lebel Symptom Score and all had positive skin prick tests with a control group comprising normal subjects who scored less than five. It was observed that RGB values at specified points in the nasal mucosa, namely the septum and the inferior turbinate, were all higher in the allergic rhinitis group compared to the control group, this being statistically so for G and B values. This has been done in the diagnosis and prognosis of laryngopharyngeal reflux and middle ear effusion. More studies are required to standardise this as a non-invasive but reliable objective diagnostic tool.
An objective office-based method for diagnosing allergic rhinitis
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