ESTRO 2024 - Abstract Book

S2551

Clinical - Urology

ESTRO 2024

Keywords: prostate, rectal spacer, radiotherapy

References:

1. NICE (2021) Prostate cancer: diagnosis and management. National Institute for Health and Care Excellence.

2. Willet et al. (2000) Acute and late toxicity of patients with inflammatory bowel disease undergoing irradiation for abdominal and pelvic neoplasms. International Journal of Radiation Oncology Biology and Physics. 46, 4, 995 998. https://doi.org/10.1016/S0360-3016(99)00374-0 3. Palma et al. (2008) Volumetric Modulated Arc Therapy for Delivery of Prostate Radiotherapy: Comparison With Intensity-Modulated Radiotherapy and Three-Dimensional Conformal Radiotherapy. International Journal of Radiation Oncology Biology and Physics. 72, 4, 996-1001. https://doi.org/10.1016/j.ijrobp.2008.02.047

2589

Digital Poster

Hyaluronic acid versus balloon rectal spacers in robotic SBRT for prostate cancer: QoL and toxicity

Sofia Ramos 1 , Mário Leal 1 , Sara Simões 1 , Marina Amorim 1 , Fátima Rodrigues 2 , Guilherme Campos 2 , Ricardo Guedes 2 , Graça Fonseca 2 , Adelina Costa 2 , Cármen Calçada 2 , Paulo Costa 2

1 Braga Hospital, Radiotherapy, Braga, Portugal. 2 CUF Institute, Radiotherapy, Porto, Portugal

Purpose/Objective:

Spacers can reduce the rectal volume exposed to high doses of radiation by creating a separation between the prostate and rectum. [1,2]

The aim of this study was to compare the quality of life (QoL) and toxicity profile between patients treated with robotic stereotactic radiotherapy for localized prostate adenocarcinoma, with prior placement of hyaluronic acid (HA) or balloon rectal spacers.

Material/Methods:

Between 2017 and 2022, 30 patients with localized prostate cancer, stage cT1a-T3b, Gleason score 6-9, and a median PSA of 6.28ng/ml, were treated at a single institution with robotic stereotactic radiotherapy (35-37.5Gy in 5 fractions) with prior placement of HA (n=15) or biodegradable balloon (n=15) rectal spacers.