Sialochemistry of KCS patients

Sialochemistry was used to detect salivary gland involvement in KCS patients. Significantly elevated IgA was found in 52% of the patients, potassium in 48% and sodium in 32%. No correlation between the grade of Schirmer's test and the extent of changes in salivary composition was observed. The results indicate that salivary IgA, K and Na concentrations can be used for detection of salivary gland involvement of KCS patients.