Disorders of taste (dysgeusia) in head and neck cancer patients on concomitant CT/RT.

Abstract

e18199 Background: Head & Neck cancer is a major problem in India and developing countries related to use of tobacco. Locally advanced oral cavity cancers form a majority of cancers of this region. Common method of treatment of this region is to use concomitant radiation with chemotherapy and/or biotherapy. One of the side effects of regional treatment is loss of taste or dysfunction of taste. This although common has not been properly evaluated or reported. Its impact although conceivable is not used in dietary modifications or tailoring treatment. Methods: Taste discrimination was assessed using high medium and low concentration of sweet salty sour and bitter tasting solution. Cross-sectional observational study was designed to describe the prevalence of taste dysfunction in a group of Head & Neck cancer survivors with oral cancers. Survivors were required to be disease free for at least 3 months symptomatically and imaging wise. Only patients found fit on cognitive assessments as well as capable of comprehending language were asked to fill a simple seven question graded chart. Results: Non parametric approach was done for taste score. Descriptive statistics were used for taste scores and self-reported taste changes. 90 patients were included. Age group 49y – 80y. 58 patients were above the age of 65y. 1/3rd of the patients were females. All patients were locally advanced patient and the commonest site was oral cavity and oro-pharynx – 80%. Participants performed poorly on the taste test. The commonest disturbance in taste was in sweet and sour. 20% of patients had bitter and metallic taste in mouth. 1/3rd of patients had no taste. Patients with maintained taste did not lose weight. Long term taste dysfunction persisted in about 30% of patients. Conclusions: Head & Neck cancer survivors have taste dysfunctions. Taste recognition is demonstrated at low and high concentrations as well as persistent bitter and metallic phantom taste. It may persist for long periods of time. Recognizing this problem is important so the clinicians can help survivor scope with the problem.