THE IMPACT OF BILATERAL NECK DISSECTION ON PATTERN OF RECURRENCE AND SURVIVAL IN SUPRAGLOTTIC CARCINOMA

Objective: The findings of an initial evaluation of 202 patients treat ed for squamous cell carcinoma of the supraglottic larynx have been pr eviously reported. Recurrent disease was observed at the primary site in four patients (2%), in the regional lymphatics in 39 patients (20%) , and at distant sites in 24 patients (12%). Critical analysis of pati ents who demonstrated recurrent disease in the cervical lymphatics ind icated that 38 of 39 recurrences developed in nonsurgically treated ne cks irrespective of the use of postoperative radiation therapy. Accord ingly, all patients with supraglottic carcinoma have been treated with routine bilateral neck dissection since that time. We have reviewed o ur data to determine if bilateral neck dissections deter recurrence an d improve survival. Design: A retrospective review of the clinical cou rse of 76 patients undergoing excision of supraglottic squamous carcin oma combined with bilateral neck dissection between 1980 and 1990 was performed to determine survival and recurrence rates. Surgery alone wa s used to treat 32 patients, while 44 patients were treated with surge ry plus adjunctive therapy. Setting: Department of Otolaryngology-Head and Neck Surgery, The Eye and Ear Institute, University of Pittsburgh (Pa) School of Medicine. Results: Distant metastatic spread was the m ost frequent site of failure, occurring in nine (11.8%) of 76 patients . Local recurrence was experienced by two patients (1%). The incidence of cervical recurrence (seven patients, 9.2%) following treatment for squamous cell carcinoma of the supraglottic larynx has been reduced f rom 20% to 9% through the use of bilateral neck dissection. The 2-year survival rate increased from 72% to 76%. Conclusion: Routine bilatera l neck dissection is beneficial in the surgical management of squamous cell carcinoma of the supraglottic larynx.