Management Experience of T1 Glottic Cancer Treated by CO₂ Laser Surgery: A Cohort of 173 Patients

It was aimed to explore an alternative solution to manage T1 glottic cancer patients. One hundred seventy-three patients were enrolled. Seventy-eight cases were treated with type I and proved to be microinvasion cancer. Of them, 21 willingly selected followed up and 57 were further undergone type II. Ninety-five underwent type III and confirmed to be superficial invasion cancer in which Reinke's space was invaded. Five(23.8%), four(7.0%) and nine (9.5%)cases separately relapsed in type I, II and III. No significant difference was observed (p>0.05). 5/60, 5/11 and 8/102 patients respectively replaced in negative, positive and uncertain margin groups. There were remarkable differences among them (p<0.05). The recurrence rate is still low for patients with early glottic cancer undergone vocal cord resection using CO₂ laser, and the appropriate surgical method should be selected for a diverse range of glottic cancer to avoid overtreatment. Patients with positive incisal margins have a relatively high recurrence rate and should take this situation seriously.