[An attempt at determining a single equivalent optimal therapeutic dosage (otD-1) in relation to radiotherapy of laryngeal cancer].

In the paper an attempt was made to determine the optimum single therapeutic dose (otD1( in radiation treatment of 600 patients with laryngeal cancer. It is suggested to take the latter as a standard for adequate dosage in planning fractionation radiotherapy and to use it for calculating the optimum total therapeutic dose (otDt). Both the optimum single therapeutic dose and total dosage equivalent to it may provide for better chances of patients' cure. The analysis indicated that in laryngeal cancer of stage T1--2N0M0 the optimum equivalent single therapeutic dose is mostly likely to be 2700 +/- 60,0 rad while in stage T2N0M0--2850 +/- 50,0 rad.