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Primary adenoid cystic carcinoma of the trachea: clinical outcome of 38 patients after interdisciplinary treatment in a single institution

Högerle, Benjamin A. ; Lasitschka, Felix ; Muley, Thomas ; Bougatf, Nina ; Herfarth, Klaus ; Adeberg, Sebastian ; Eichhorn, Martin ; Debus, Jürgen ; Winter, Hauke ; Rieken, Stefan ; Uhl, Matthias

In: Radiation Oncology, 14 (2019), Nr. 117. pp. 1-9. ISSN 1748-717X

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Download (762kB) | Lizenz: Creative Commons LizenzvertragPrimary adenoid cystic carcinoma of the trachea: clinical outcome of 38 patients after interdisciplinary treatment in a single institution by Högerle, Benjamin A. ; Lasitschka, Felix ; Muley, Thomas ; Bougatf, Nina ; Herfarth, Klaus ; Adeberg, Sebastian ; Eichhorn, Martin ; Debus, Jürgen ; Winter, Hauke ; Rieken, Stefan ; Uhl, Matthias underlies the terms of Creative Commons Attribution 4.0

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Abstract

Background: Primary adenoid cystic carcinomas (ACCs) of the trachea are rare tumors of the central bronchial system. In patients presenting with unresectable tumors, severe comorbidities, or incomplete surgical resection, definitive radiotherapy is currently the recommended treatment. Irradiation with carbon ions (C12) has shown promising local control (LC) and survival rates in cases of ACCs of the head and neck. No data on the therapeutic efficacy of C12 radiotherapy in treating tracheal ACC has been published.

Methods: All patients with histologically confirmed ACC of the trachea treated with surgery and/or radiation treatment at Heidelberg University Hospital between 1991 and 2017 were included in this analysis. Patient and treatment characteristics, short- and long-term toxicity after radiotherapy, overall survival (OS), freedom from local progression (FFLP), and freedom from distant progression (FFDP) were prospectively acquired and retrospectively analyzed.

Results: Thirty-eight patients (23 women and 15 men) with a median age of 51 were treated by surgery (n = 20) and/or radiotherapy with either C12 (n = 7) or photons (n = 24). Of these patients, 61% presented with locally advanced (stage 4) ACC. The median follow-up for all patients was 74.5 months. The 5-year OS for all patients was 95% (10-year: 81%). The 5-year FFLP and FFDP were 96% (10-year: 83%) and 69% (10-year: 53%), respectively. In patients who underwent surgery alone, the 5-year OS was 100% (10-year: 80%). The 5-year FFLP and FFDP were 100% (10-year: 100%) and 80% (10-year: 60%), respectively. In patients who underwent radiotherapy alone, the 5-year OS was 100% (10-year: 83%). The 5-year FFLP and FFDP were 88% (10-year: 44%) and 67% (10-year: 34%), respectively. In patients who received multi-modal treatment including surgery and adjuvant radiotherapy, the 5-year OS was 84% (10-year: 84%). The 5-year FFLP was 100% (10-year: 100%) and the 5-year FFDP was 65% (10-year, 65%).

Conclusions: The long-term prognosis is favorable if surgery is performed. In cases of an incomplete resection, good OS can still be achieved following adjuvant radiotherapy. For radiotherapy, irradiation with C12 shows promising first results. However, more data is needed to prove the long-term advantage of C12 over photons.

Trial registration: The ethics committee of the Heidelberg University Hospital approved the retrospective data analysis (S-174/2019).

Document type: Article
Journal or Publication Title: Radiation Oncology
Volume: 14
Number: 117
Publisher: BioMed Central
Place of Publication: London
Date Deposited: 12 Aug 2019 08:49
Date: 2019
ISSN: 1748-717X
Page Range: pp. 1-9
Faculties / Institutes: Medizinische Fakultät Heidelberg > Pathologisches Institut
Medizinische Fakultät Heidelberg > Thoraxklinik Heidelberg gGmbH
Medizinische Fakultät Heidelberg > Heidelberg Ion-Beam Therapy Center (HIT)
DDC-classification: 610 Medical sciences Medicine
Uncontrolled Keywords: Adenoid cystic carcinoma, Carcinoma of the trachea, Carbon ion, Radiation therapy, Multi-modal treatment, Tracheal tumor surgery
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