PMID- 33460976 OWN - NLM STAT- MEDLINE DCOM- 20211012 LR - 20211012 IS - 1532-818X (Electronic) IS - 0196-0709 (Linking) VI - 42 IP - 3 DP - 2021 May-Jun TI - A national cancer database analysis on stereotactic body radiation therapy of head and neck cancers. PG - 102913 LID - S0196-0709(21)00014-4 [pii] LID - 10.1016/j.amjoto.2021.102913 [doi] AB - BACKGROUND: To evaluate demographic, clinicopathological, treatment factors including biological effective radiation dose (BED) that influence overall survival in head and neck cancer (HNC) patients treated with stereotactic body radiation therapy (SBRT). METHODS: Between 2004 and 2015, 591 SBRT-treated HNC patients were identified from the National Cancer Data Base. A BED using an alpha/beta ratio of 10 (BED(10)), was used to compare dose fractionation of different SBRT regimens. Overall survival was estimated using the Kaplan Meier method, and log-rank tests were used to determine statistical significance. Cox regression modeling was used to compute crude and adjusted hazard ratios (HR) with 95% confidence intervals (CI). RESULTS: Median follow-up was 11.9 (interquartile range, 5.5 to 26.7) months. The 5-year overall survival rate was 15.5%. On multivariate analysis, older age, Charlson-Deyo comorbidity score >/= 1, history of cancer, tumor, nodal and metastatic stage, and receiving treatment at academic/research program were associated with poor survival. Compared to SBRT alone, superior survival was observed with SBRT with chemotherapy, surgery with SBRT, but not surgery with SBRT and chemotherapy. Improved survival was observed with aa BED(10) of >/=59.5 Gy (adjusted HR 0.57, 95% CI 0.46-0.70, P < 0.0001). CONCLUSIONS: Factors affecting associated with worse survival in HNC patients treated with SBRT included older age, patient comorbidities, advanced tumor stage, cancer history, and lower biological effective SBRT dose. LEVEL OF EVIDENCE: 2b (individual cohort study). CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Park, Justin J AU - Park JJ AD - Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA, United States of America. FAU - Qureshi, Muhammad M AU - Qureshi MM AD - Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA, United States of America. FAU - Lam, Christa M AU - Lam CM AD - Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA, United States of America. FAU - Faden, Daniel L AU - Faden DL AD - Department of Otolaryngology-Head and Neck Surgery, Mass. Eye and Ear, Mass. General Hospital, Boston Medical Center, United States of America; Harvard Medical School, United States of America. FAU - Truong, Minh Tam AU - Truong MT AD - Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA, United States of America. Electronic address: mitruong@bu.edu. LA - eng PT - Journal Article DEP - 20210112 PL - United States TA - Am J Otolaryngol JT - American journal of otolaryngology JID - 8000029 SB - IM MH - Age Factors MH - Aged MH - Aged, 80 and over MH - *Data Analysis MH - *Databases, Factual MH - Dose Fractionation, Radiation MH - Female MH - Follow-Up Studies MH - Head and Neck Neoplasms/mortality/*radiotherapy MH - Humans MH - Male MH - Middle Aged MH - Radiosurgery/*methods MH - Radiotherapy Dosage MH - Survival Rate MH - Treatment Outcome OTO - NOTNLM OT - Biological effective dose OT - Head and neck OT - Radiation dose OT - Stereotactic body radiation therapy OT - Survival EDAT- 2021/01/19 06:00 MHDA- 2021/10/13 06:00 CRDT- 2021/01/18 20:12 PHST- 2020/12/19 00:00 [received] PHST- 2020/12/29 00:00 [accepted] PHST- 2021/01/19 06:00 [pubmed] PHST- 2021/10/13 06:00 [medline] PHST- 2021/01/18 20:12 [entrez] AID - S0196-0709(21)00014-4 [pii] AID - 10.1016/j.amjoto.2021.102913 [doi] PST - ppublish SO - Am J Otolaryngol. 2021 May-Jun;42(3):102913. doi: 10.1016/j.amjoto.2021.102913. Epub 2021 Jan 12.