Oncological outcomes of CO2laser cordectomies for glottic squamous cell carcinoma with respect to anterior commissure involvement and margin status

BACKGROUND AND OBJECTIVES Controversial prognostic factors of primary CO2 laser cordectomy are anterior commissure involvement (ACI) and status of margin. STUDY DESIGN/MATERIALS AND METHODS Retrospective analysis of oncological outcomes in 102 patients with early glottic cancer undergoing laser cordectomy between 2013 and 2015. RESULTS The T stages distribution included: 72.6% T1a, 14.7% T1b, and 12.7% T2. The ACI was diagnosed in 26 patients. The primary cordectomy was radical in 72 patients. The 2- and 5-year disease free survival (DFS) for all patients were, respectively, 83.3% and 77.3%.The 2-year DFS rates for T1a, T1b, T2 were, respectively, 91.7%, 66.7%, and 53.9% and the differences were statistically significant (P