RT Journal Article
SR Electronic
T1 Impact of Different Treatment Concepts on Regional Failure in Advanced Oropharyngeal Cancer
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 727
OP 734
VO 37
IS 2
A1 STEPHAN HOCH
A1 KATHARINA THELEN
A1 HILKE VORWERK
A1 CHRISTOPH NETZER
A1 THOMAS WILHELM
A1 THOMAS GÜNZEL
A1 AFSHIN TEYMOORTASH
YR 2017
UL http://ar.iiarjournals.org/content/37/2/727.abstract
AB Background: The management of patients with advanced oropharyngeal cancer is complex and mostly requires a multidisciplinary treatment approach. In general, organ preservation by primary concurrent radiochemotherapy (RCT), or surgery completed by adjuvant radiotherapy are established treatment strategies for these patients. However, it is unclear if primary treatment has an effect on regional tumor control. The purpose of the present study was to evaluate the regional control after different treatment concepts. Patients and Methods: Clinical data, including histological and radiological results, of 82 patients with T2-T3 oropharyngeal cancer and N2 neck were retrospectively analyzed. They underwent either RCT with salvage neck dissection (ND) (n=45), or primary transoral surgery with ND and adjuvant RCT (n=37). In all cases, the primary tumor was successfully treated, without evidence of local failure in the follow-up. Results: Overall, 11 (13.4%) patients developed regional failure during the follow-up. There were no significant differences in frequency of regional failure (p=0.75), distant metastasis (p=0.35) and overall survival (p=0.22) between treatment groups. However, 5-year disease-free survival was significantly worse (39.0% vs. 57.0%) for patients treated by RCT, with more frequent regional failure detected compared to surgically-treated patients in univariate analysis (p=0.04). Conclusion: Treatment concept does not seem to affect regional tumor control in advanced oropharyngeal cancer after successful treatment of the primary tumor.