Preservation of laryngeal function improves outcomes of patients with hypopharyngeal carcinoma

This study compares clinical characteristics and survival between patients with and without laryngeal function (LF) preservation during surgical treatment for hypopharyngeal carcinoma. We retrospectively reviewed 485 cases of hypopharyngeal carcinoma treated at a single institution for analysis. There were 337 cases with and 148 cases without LF preservation after surgery. Preservation of LF was complete in 237 patients and partial in 100 patients. There were significant statistical differences between the preservation group and the group without preservation in T-stage (P < 0.001), overall staging (P < 0.001), and tumor sites (P < 0.001) except the N-stage (P = 0.240). The patients with LF preservation had significantly better overall survival (log-rank, P = 0.005) and a lower risk of death than those without LF preservation (HR 0.62, 95 % CI 0.43–0.97), after multivariable adjustment. Treatment with surgery in combination with radiotherapy is still the favorable choice for patients with hypopharyngeal carcinoma. The maximal restoration of pharyngoesophageal continuity and function improves survival for patients whose tumors are excised completely for the preservation of LF and laryngeal and pharyngeal reconstruction. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00405-014-3115-2) contains supplementary material, which is available to authorized users.