Abstract
Radiation-related xerostomia has been the most significant and disabling side-effect of radiotherapy for head and neck cancer for more than 50 years. With the PARSPORT trial, reported in The Lancet Oncology,1 the largest and best designed of several randomised trials focusing on xerostomia, radiation oncologists and their partners in physics and dosimetry should take pride that significant progress has been made. Before the introduction of intensity-modulated radiotherapy (IMRT), more than 80% of survivors experienced substantial dry mouth syndrome and associated effects on dental health, swallowing, taste, and quality of life.
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