Abstract
A total of 109 patients with glottic squamous cell carcinoma were retrospectively evaluated at Hyogo College of Medicine Hospital between 2003 and 2010; 106 patients were male and 3 patients were female, with a median age of 69 years (range, 51-90 years). According to the 7th edition of the Union for International Cancer Control TNM classification, the clinical TN stages were T1aN0 in 47 cases, T1aN1 in 1 case, T1aN2a in 1 case, T1bN0 in 19 cases, T3N0 in 11 cases, T4aN in 5 cases, and T4aN2b in 1 case. No distant metastasis was observed in any cases at initial treatment. Treatments were radiotherapy alone in 75 cases, concurrent chemo-radiotherapy in 20 cases, supra-cricoid laryngectomy in 1 case, and total laryngectomy in 13 cases. Salvage surgery was performed for 14 patients who had undergone radiotherapy or concurrent chemo-radiotherapy. Salvage surgeries included frontolateral partial laryngectomy in 8 cases, supra-cricoid laryngectomy in 2 cases, and total laryngectomy in 4 cases. The 5-year overall survival rate was 77.6%, and the 5-year disease-specific survival rate was 92.5%. The 5-year laryngeal preservation rate was 82.9%. With regard to T-stages, the laryngeal preservation rates were 100% for T1a, 89.5% for T1b, 91.5% for T2, 18.2% for T3, and 16.7% for T4a.
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