Survival and swallowing function outcome impact factors analysis of surgery-oriented comprehensive treatment for hypopharyngeal cancer in a series of 122 patients
ENT-EAR NOSE & THROAT JOURNAL(2022)
Abstract
Objective Under current standards of treating highly aggressive hypopharyngeal cancer (HPC), oncological control and functional outcome are still unsatisfactory worldwide. This study explored the surgery-oriented comprehensive treatment approach based on 15 years of practice. Methods A retrospective cohort of HPC patients treated by the senior author at Chinese PLA General Hospital between Nov 2005 and Aug 2012 and Capital Medical University Beijing Friendship Hospital between May 2014 and Nov 2019 was studied. Oncological control, swallowing function, and quality of life (QoL) were assessed. Results In total, 122 patients were included in this study, with 11 (9.0%) cases in the early stage and 111 (91.0%) cases in the advanced stage. Five-year overall survival (OS) and disease-free survival (DFS) were 40.0% and 36.1%, respectively. The swallowing outcome was satisfactory in 90 (73.8%) patients. Tracheostomy-free survival was achieved in 55 (45.1%) patients. Multivariate cox regression analysis showed that the size of the surgical defect, local-regional recurrence, and distant metastasis were independent impact factors for OS and DFS (P < .05). Multivariate analysis showed that the logistic regression coefficients (standard error) of pharyngo-cutaneous fistula and local-regional recurrence on swallowing function were 1.274 (.532) and 1.283 (.496), respectively (P < .05). In addition, the logistic regression coefficients (standard error) of the clinical stage, local-regional recurrence, decannulation, and feeding tube on QoL were -7.803 (3.593), -7.699 (3.151), 13.853 (3.494), and -20.243 (3.696), respectively (P < .05). Conclusions Surgery-oriented comprehensive treatment can give rise to good swallowing function without jeopardizing oncological control. The size of the surgical defect, local-regional recurrence, and distant metastasis were independent factors impacting OS and DFS. Pharyngo-cutaneous fistula and local-regional recurrence were independent factors impacting swallowing function. Clinical stage, local-regional recurrence, decannulation, and feeding tube were independent factors impacting QoL.
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Key words
hypopharyngeal cancer, surgery-oriented comprehensive treatment, survival, functional outcome, swallowing function
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