PMID- 35157100 OWN - NLM STAT- MEDLINE DCOM- 20220826 LR - 20221004 IS - 1439-099X (Electronic) IS - 0179-7158 (Print) IS - 0179-7158 (Linking) VI - 198 IP - 9 DP - 2022 Sep TI - Results of sole postoperative interstitial, high-dose-rate brachytherapy of T1-2 tongue tumours. PG - 812-819 LID - 10.1007/s00066-022-01901-w [doi] AB - PURPOSE: To describe the results of treating tongue cancer patients with single postoperative interstitial, high-dose-rate (HDR) brachytherapy (BT) after resection. METHODS: Between January 1998 and April 2019, 45 patients with squamous cell histology, stage T1-2N0-1M0 tongue tumours were treated by surgery followed by a single HDR BT in case of negative prognostic factors (close or positive surgical margin, lymphovascular and/or perineural invasion). The average dose was 29 Gy (range: 10-45 Gy) and rigid metal needles were used in 11 (24%) and flexible plastic catheters in 34 cases (76%). Survival parameters, toxicities and the prognostic factors influencing survival were analysed. RESULTS: During a mean follow-up of 103 months (range: 16-260 months) for surviving patients, the 10-year local and regional control (LC, RC), overall survival (OS), and disease-specific survival (DSS) probabilities were 85, 73, 34 and 63%, respectively. The incidence of local grade 1, 2 and 3 mucositis was 23, 73 and 4%, respectively. As a serious (grade 4), late side effect, soft tissue necrosis developed in 3 cases (7%). In a univariate analysis, there was a significant correlation between lymphovascular invasion and RC (p = 0.0118) as well as cervical recurrence and DSS (p < 0.0001). CONCLUSION: Sole postoperative HDR brachytherapy can be an effective method in case of negative prognostic factors in the treatment of early, resectable tongue tumours. Comparing the results of patients treated with postoperative BT to those who were managed with surgery or BT alone known from the literature, a slightly more favourable LC can be achieved with the combination therapy, demonstrating the potential compensating effect of BT on adverse prognostic factors, while the developing severe, grade 4 toxicity rate remains low. CI - (c) 2022. The Author(s). FAU - Takacsi-Nagy, Zoltan AU - Takacsi-Nagy Z AUID- ORCID: 0000-0002-3261-0271 AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. takacsi@oncol.hu. AD - Department of Oncology, Semmelweis University, Budapest, Hungary. takacsi@oncol.hu. FAU - Ferenczi, Ors AU - Ferenczi O AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. FAU - Major, Tibor AU - Major T AUID- ORCID: 0000-0002-4672-6910 AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. AD - Department of Oncology, Semmelweis University, Budapest, Hungary. FAU - Akiyama, Hironori AU - Akiyama H AUID- ORCID: 0000-0003-2530-4302 AD - Department of Oral Radiology, Osaka Dental University, Osaka, Japan. FAU - Frohlich, Georgina AU - Frohlich G AUID- ORCID: 0000-0001-6428-6536 AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. AD - Faculty of Science, Eotvos Lorand University, Budapest, Hungary. FAU - Oberna, Ferenc AU - Oberna F AD - Multidisciplinary Centre of Head and Neck Tumours, National Institute of Oncology, Budapest, Hungary. FAU - Revesz, Monika AU - Revesz M AUID- ORCID: 0000-0001-5651-8536 AD - Multidisciplinary Centre of Head and Neck Tumours, National Institute of Oncology, Budapest, Hungary. FAU - Poosz, Marton AU - Poosz M AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. FAU - Polgar, Csaba AU - Polgar C AUID- ORCID: 0000-0001-7245-0762 AD - Centre of Radiotherapy, National Institute of Oncology, Rath Gyorgy St. 7-9, 1122, Budapest, Hungary. AD - Department of Oncology, Semmelweis University, Budapest, Hungary. LA - eng PT - Journal Article DEP - 20220214 PL - Germany TA - Strahlenther Onkol JT - Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] JID - 8603469 SB - IM MH - *Brachytherapy/methods MH - Combined Modality Therapy MH - Humans MH - Margins of Excision MH - Radiotherapy Dosage MH - Retrospective Studies MH - *Tongue Neoplasms/radiotherapy/surgery PMC - PMC9402734 OTO - NOTNLM OT - Brachytherapy OT - High-dose-rate OT - Postoperative treatment OT - Survival OT - Tongue neoplasms COIS- Z. Takacsi-Nagy, O. Ferenczi, T. Major, H. Akiyama, G. Frohlich, F. Oberna, M. Revesz, M. Poosz and C. Polgar declare that they have no competing interests. EDAT- 2022/02/15 06:00 MHDA- 2022/08/27 06:00 PMCR- 2022/02/14 CRDT- 2022/02/14 12:16 PHST- 2021/08/17 00:00 [received] PHST- 2022/01/16 00:00 [accepted] PHST- 2022/02/15 06:00 [pubmed] PHST- 2022/08/27 06:00 [medline] PHST- 2022/02/14 12:16 [entrez] PHST- 2022/02/14 00:00 [pmc-release] AID - 10.1007/s00066-022-01901-w [pii] AID - 1901 [pii] AID - 10.1007/s00066-022-01901-w [doi] PST - ppublish SO - Strahlenther Onkol. 2022 Sep;198(9):812-819. doi: 10.1007/s00066-022-01901-w. Epub 2022 Feb 14.