Long Term Oncological Results of Transoral Laser Microsurgery for Early and Moderately Advanced Glottic Carcinoma in Primary and Salvage Settings.

The aim of the study is to document the long term oncological results of trans-oral laser microsurgery (TLM) for early and moderately advanced glottic cancer in primary and salvage settings. In this prospective cohort study 43 consecutive patients of glottic cancer (T1-30, T2-7, and selected T3 with mobile cords-6) were recruited. TLM was performed in these 35 primary and 8 previously treated cases. In our series, the local disease control rate with TLM was 90% (27/30) for T1 disease, 71.4% (5/7) for T2 cancer and 66.6% (4/6) for T3 lesions. The overall disease control rates after subsequent treatment for locoregional recurrences were 100% (30/30), 85.7% (6/7) and 83.3% (5/6) for T1, T2, and T3 glottic cancers respectively. The 5-years disease free survival rate for primary cases was 100% and 50% for salvage cases. The 5-years local disease control rate was 96.4% and 41.67% in primary and salvage TLM settings respectively. The 5-years laryngectomy free rates were 96.3% and 18.75% for primary and salvage cases respectively. TLM offers a minimally invasive and oncologically robust treatment option for early glottic cancer with an overall disease free survival of 100% at 5 years noted for primary untreated cases in this experience. TLM for post radiation salvage cases has however been disappointing and alternate larynx preserving option of open partial laryngectomy needs to be considered in this setting.