CO2 Laser and Open Surgery for T1N0 Glottic SCC With Anterior Commissure Involved

Inclusion Criteria: * T1N0 SCC of glottic carcinoma with anterior commissure involve * No nodal metastasis and distant metastasis * All patients must have CT/MR and electronic laryngoscope test before surgery and after surgery * Expected lifetime\>1 year * Patients and families agreed to participate in the test and sign the informed consent * Without cognitive impairment. Exclusion Criteria: * With severe cardiac insufficiency Liver and kidney function is not complete systemic infection patients * Patients with pregnancy and lactation * Have surgery contraindications