

Eisbruch et al, IJROBP 45, 3:577, 1999
Prospective study
• 51 patients, parotid sparing bilateral neck RT
(advanced head & neck)
37 patients, unilateral neck RT (small lateral tumors)
• Saliva flow rates measured before and 1 year after RT
• Threshold mean dose to the glands for suppression of the salivary flow: 24 - 26
Gy
Roesink et al, IJROBP 51, 4:938, 2001
Prospective study
• 180 patients, 174 parotid glands
• Saliva flow rates measured before and after RT
(6 weeks, 6 months, 1 year)
• Postradiotherapy saliva flow decreased with increasing irradiated volume to a
mean dose between 35 and 45
• No threshold mean dose