Results of image guided brachytherapy for stage IB cervical cancer in the RetroEMBRACE study

Autor: E. Villafranca, Christian Kirisits, Richard Pötter, Umesh Mahantshetty, Li Tee Tan, C. Gillham, Kari Tanderup, Jacob Christian Lindegaard, Primoz Petric, Erik Van Limbergen, Kathrin Kirchheiner, Lars Fokdal, Christine Haie-Meder, Peter Hoskin, Ina M. Jürgenliemk-Schulz, Ekkasit Tharavichitkul, Alina Sturdza, Maximilian Schmid
Přispěvatelé: University of Zurich, Petric, Primoz
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Petric, P, Lindegaard, J C, Sturdza, A, Fokdal, L, Kirchheiner, K, Tan, L T, Schmid, M P, Haie-Meder, C, Jürgenliemk-Schulz, I M, van Limbergen, E, Hoskin, P, Gillham, C, Tharavichitkul, E, Mahantshetty, U, Villafranca, E, Tanderup, K, Kirisits, C & Pötter, R 2021, ' Results of image guided brachytherapy for stage IB cervical cancer in the RetroEMBRACE study ', Radiotherapy and Oncology, vol. 157, pp. 24-31 . https://doi.org/10.1016/j.radonc.2021.01.005
Popis: Objective: Multiple treatment options are used in early local-stage cervical cancer, including combinations of surgery with neoadjuvant/adjuvant radiotherapy and chemotherapy. Our aim was to determine the outcome for definitive chemoradiation with image guided brachytherapy (IGBT). Methods: FIGO1994 staging system was used in our study. We included 123 patients with stage IB cervical cancer, treated at 12 centers with external beam radiotherapy (EBRT) ± Chemotherapy and IGBT. Three- and 5-year actuarial local control (LC), pelvic control (PC), overall survival (OS), cancer-specific survival (CSS) and late morbidity (CTCAE v 3.0) were computed. Results: Median age was 48 (23–82) years. FIGO1994 stage distribution was: IB1 68% and IB2 32%; 41% of the entire cohort had nodal metastases and 73% squamous-cell carcinoma. MRI-based tumor size was >40 mm in 63%. Median EBRT dose was 45 (40–50) Gy; 84% received chemotherapy. At IGBT, mean CTV-HR D90 was 93 ± 17 Gy (EQD210). D2cc for bladder was 76 ± 14 Gy, rectum 66 ± 11 Gy, sigmoid 66 ± 10 Gy, bowel 67 ± 7 Gy (EQD23). At 43-months median follow-up, 9% of patients had systemic, 6% paraaortic, 3% pelvic-nodal and 2% local failure. Five-year LC was 98%, PC 96%, CSS 90%, OS 83%. Intestinal G3-–4 morbidity was 8%, urinary 7% and vaginal 0%. Conclusions: Chemoradiation with IGBT for FIGO1994 stage IB cervical cancer leads to excellent loco-regional control with limited morbidity. In IB node-negative disease, it can be regarded equivalent to surgery in terms of oncologic outcome. In tumors with unfavorable pre-treatment characteristics, chemoradiation is the first choice to avoid combining surgery with adjuvant therapy.
Databáze: OpenAIRE