Predictors of local failure in early laryngeal cancer
Abstract:
The aim of the study was to assess the impact of factors that could predict the probability of local failure in early laryngeal squamous cell carcinoma treated with curative radiotherapy. Sixty seven patients (12 women and 55 men) with laryngeal cancer stage I (47 patients) and stage II (20 patients) were treated from 1998 to 2003 with curative radiotherapy and retrospectively evaluated. Median follow-up was 36 months (3–80). Local relapse occured in 10 patients (15%), regional lymphnodes relapse affected 2 patients. The median time between start of radiotherapy to recurrence was 13 months (3–48). Death due to cancer occured in 4 patients (2 died from locoregional progression of the recurrence and 2 from distant metastases), whereas 7 patients died from non-cancer related causes. The 2-year overall survival rate was 90% and 5-year OS was 79%. The 2-year local control rate was 82% and 5-year local control was 79%. In the univariate analysis there was a statistically significant decrease in local control influenced by grading (p terior commissure involvement and age) were not reaching level of statistical significant value for overall survival. Close follow up strategy is recommended for high risk group of patients with two or more risk factors especially in the first three years after radiation therapy.