[The effect of local UHF hyperthermia and a fractionated radiation dosage on the incidence of perichondritis during the treatment of laryngeal cancer].

Perichondritis in patients treated by a continuous course were noted in 12.5 +/- 1.5%, in patients treated by a split method--in 4.6 +/- 1.2%, in chemoradiotherapy--in 5.75 +/- 1.3%, in thermoradiotherapy--in 3.0 +/- 2.9%, and after synchronization using 5-FU and large fractions--in 30.5 +/- 3.9%. Complications appeared mainly during the 1st year (85%), after 2-3 yrs.--in 8.4%, later on--in 6.6%. Local hyperthermia did not cause an increase in the number of complications.