Carbon dioxide laser as primary treatment of glottic T1S and T1A tumours.

A series of 31 glottic T1 tumours, 18 T1A and 13 T1S, treated endoscopically by carbon dioxide laser surgery is presented. There were 3 recurrences in each group which were successfully treated by repeated laser surgery or radiotherapy. A comparison of the quality of the voice with T1A tumours primarily treated by radiotherapy using a GRBAS score is made. The quality changed for the worse permanently after laser excision.