Increase in primary surgical treatment of T1 and T2 oropharyngeal squamous cell carcinoma and rates of adverse pathologic features: National Cancer Data Base Journal Article

   

Authors:	Cracchiolo, J. R.; Baxi, S. S.; Morris, L. G.; Ganly, I.; Patel, S. G.; Cohen, M. A.; Roman, B. R.
Article Title:	Increase in primary surgical treatment of T1 and T2 oropharyngeal squamous cell carcinoma and rates of adverse pathologic features: National Cancer Data Base
Abstract:	BACKGROUND: There has been increasing interest in the primary surgical treatment of patients with early T classification (T1-T2) oropharyngeal squamous cell carcinoma (OPSCC), with the stated goal of de-escalating or avoiding adjuvant treatment. Herein, the authors sought to determine the degree to which this interest has translated into changes in practice patterns, and the rates of adverse postoperative pathologic features. METHODS: Patients with T1 to T2 OPSCC in the National Cancer Data Base who were treated from 2004 through 2013 were categorized as receiving primary surgical or primary radiation-based treatment. Trends in treatment selection and factors related to the selection of primary surgery were examined. The rates of adverse pathologic features including positive surgical margins, extracapsular spread (ECS), and advanced T and N classifications after surgery were analyzed. RESULTS: Of 8768 patients with T1 to T2 OPSCC, 68% underwent primary surgical treatment, increasing from 56% in 2004 to 82% in 2013 (P<.0001). The highest versus lowest volume hospitals treated 78% versus 59% of patients with primary surgery (odds ratio, 2.23; 95% confidence interval, 1.55-3.22 [P<.0001]). Higher lymph node classification was found to be predictive of lower rates of primary surgery, but the majority of patients with clinical N2/N3 disease underwent primary surgery. Among patients treated with surgery, positive surgical margins were present in 24% and ECS in 25% of patients. The rate of positive surgical margins decreased over time (P<.0001) and was observed less often at high-volume centers (P<.0001). Among candidates for single-modality therapy (those with clinical T1-T2/N0-N1 disease), 33% had positive surgical margins and/or ECS and 47% had at least 1 adverse feature (T3-T4 disease, N2-N3 disease, positive surgical margins, and/or ECS). CONCLUSIONS: Primary surgical treatment among patients with early T classification OPSCC has become more widespread. (C) 2016 American Cancer Society.
Keywords:	survival; radiotherapy; therapy; positive surgical margins; trends; neck-cancer; united-states; human-papillomavirus; locally advanced head; transoral; concomitant chemotherapy; treatment selection; transoral robotic surgery; extracapsular spread (ecs); human papillomavirus-related oropharyngeal; squamous cell carcinoma (opscc); robotic surgery (tors)
Journal Title:	Cancer
Volume:	122
Issue:	10
ISSN:	0008-543X
Publisher:	Wiley Blackwell
Date Published:	2016-05-15
Start Page:	1523
End Page:	1532
Language:	English
ACCESSION:	WOS:000375897100009
DOI:	10.1002/cncr.29938
PROVIDER:	wos
PMCID:	PMC4860079
PUBMED:	26970050
Notes:	Article -- Source: Wos

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