Will mouth wash solutions of water, salt, sodiumbicarbonate or citric acid improve upper gastrointestinal symptoms in chronic kidney disease

Nephrology
Karen Joy Manley

Abstract

Uraemic symptoms including taste changes, nausea and dry retching are common in chronic kidney disease (CKD). Taste buds detect five basic tastes: sweet, salty, sour, umami and bitter. Saliva in CKD usually has increased concentrations of urea, sodium, potassium, phosphate and higher pH levels. Genetic sensitivities to the bitter taste, with the changes in saliva can cause taste changes and impact uraemic symptoms. The aim of this study was to assess if mouth wash solutions of water, salt, sodium bicarbonate or citric acid improves upper gastrointestinal (GI) symptoms in CKD patients. An interventional crossover study with 42 CKD patients (21 men, 21 women) complaining of upper GI symptoms were recruited. Subjects completed a questionnaire to assess symptoms and tested for genetic taste sensitivities. Saliva samples were analysed. Mouth rinse solutions of salt, bicarbonate, citric acid and de-ionised water were trialled in randomized order for patient reaction and symptom improvement. All 42 patients experienced anorexia, 39 (93%) reported taste changes, 27 (48%) nausea and 27 (48%) dry retching. All solutions improved symptoms in some patients. Sodium bicarbonate (P = 0.005) gave the greatest improvement in mouth feel and symp...Continue Reading

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Citations

Jun 22, 2017·Nephrology·Jessica StevensonMark A Brown
Aug 2, 2020·Journal of Renal Nutrition : the Official Journal of the Council on Renal Nutrition of the National Kidney Foundation·Jessica DawsonMark A Brown
Aug 24, 2021·Journal of Renal Nutrition : the Official Journal of the Council on Renal Nutrition of the National Kidney Foundation·Frank BrennanMark A Brown

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