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Elective neck dissection for T3/T4 cN0 sinonasal squamous cell carcinoma
Kayva L Crawford1, Aria Jafari2,3, Jesse R Qualliotine1
1Division of Otolaryngology-Head & Neck Surgery, Department of Surgery, University of California San Diego, San Diego, California, USA.
Background:
In locally advanced sinonasal squamous cell carcinoma (SNSCC), management of the clinically node-negative (cN0) neck is variable and elective neck dissection (END) remains controversial.
Methods:
Patients with surgically treated T3/T4 cN0 M0 SNSCC were identified using the NCDB. Overall survival (OS) was assessed by Cox proportional hazard analysis in propensity score-matched cohorts. Factors associated with END were evaluated with logistic regression.
Results:
Two hundred twenty patients underwent END (19.6%). END did not correlated with OS in propensity score-matched cohorts (HR 0.971, 95% CI 0.677-1.392), a maxillary sinus tumor subgroup (HR 1.089, 95% CI 0.742-1.599), or by radiation status [radiation: (HR 0.802, 95% CI 0.584-1.102); no radiation: (HR 0.852, 95% CI 0.502-1.445)]. The occult metastasis rate in the END cohort was 12.7%.
Conclusion:
END did not significantly improve OS in this study. Further information on disease-free survival is necessary to determine its role in advanced-stage SNSCC.
