ESTRO 2024 - Abstract Book

S2082

Clinical - Sarcoma, skin cancer, melanoma

ESTRO 2024

The survey was elaborated on SurveyMonkey’s online interface and was sent via e -mail to all Radiation Oncologists of AIRO. The questionnaire was prepared by the AIRO “Palliative care” and “Interventional Radiotherapy” Study Groups and it consisted of 29 questions: 23 multiple-choice questions and 6 open questions.

Results:

58 Italian Radiation Oncologists (ROs), representing 54 centers in 20 Italian regions, answered the survey. 75% of ROS had more than 10 years of experience. More than 1000 patients are seen annually at 46% of the centers. 13% of the ROs declared they would treat fewer than 10 NMSC lesions annually, 36% would treat between 11 and 20, and 51% would treat more than 20 lesions annually. 86% of the ROs administered integrated treatment in fewer than 10% of cases. For the 42.5% of ROs, palliative care amounted to less than 10 per year, 11-20 per year for the 42.5% of ROs, and >20 per year for the 15% of ROs. 89% of the ROs registered fewer than 10 re-RT instances annually. BT was reportedly offered, with customized applicators being the most popular ones, for 25% of the ROs, and every case was reportedly discussed by a multidisciplinary team (71% of the ROs). Electrons (74%), VMAT (57%), 3DCRT (43%) and BT (26%) were the main treatment options for the NMSC lesions. With EBRT, there were 46 and 53 different RT schedules that could be used for curative and palliative care, respectively; with BT, the options varied from 21 for curative care to 7 for palliative care. For EBRT curative settings, the most popular alternatives were 50 70.95/22-35 fractions (fz) and 50-70 Gy/16-20 fz and for EBRT palliative settings, 30Gy/10fz, and 20-35Gy/5fz. In the curative context for BT, the most popular alternatives were 32-50Gy/8-10fz and 30-54Gy/3-5fz, whereas 30Gy/6fz was the option of choice in the palliative environment. Regarding re-RT, there were less than 10 cases annually in 42.5% of the ROs, 11-20 cases annually in 42.5% of the ROs, and >20 cases annually in 15% of the ROs. Electrons (61%), VMAT (49%), and BRT (25%) were the most widely employed approaches: 20-40Gy in 10fz and 20-25Gy in 5 fz were the recommended fractionations

Conclusion:

The survey shows a variegated reality for the treatment of NMSC lesions in Italy. A national registry with more detailed data could probably help in undercover its causes.

Keywords: NMSC, Radiotherapy, Survey

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Digital Poster

Toxicity/outcome of Definitive Ewing's sarcoma patients treated with PBT at the Christie.

Mark Reed, Martha Wilson, James Wylie, Daniel Saunders, William Croxford, Mohamedkhalid Abutaleb, Laura Forker, Ed Smith

The Chistie NHS Foundation Trust, Proton Therapy, Manchester, United Kingdom

Purpose/Objective: