ESTRO 2025 - Abstract Book

S1506

Clinical – Mixed sites & palliation

ESTRO 2025

Results: Among the 41 enrolled patients, all were evaluable for satisfaction, 36 were evaluable for retention at 14 days, and 32 were evaluable for pain relief at 30 days. Pain relief, defined as a reduction of at least two points in NRS, was observed in 53.1% of patients at one month. Satisfaction with PE was high, with all patients expressing appreciation for the educational intervention. Retention of educational content was generally strong, with 49.1% of patients demonstrating correct retention and 41.4% showing partial retention at follow-up. Only 9.5% of patients did not recall the educational content accurately ( Figure 1 ). The catastrophizing score analysis revealed a statistically significant correlation between lower catastrophizing and better pain relief (p=0.011) ( Figure 2 ). Conclusion: Preliminary results suggest that PE is well-accepted by patients undergoing PRT for bone metastases and contributes to meaningful pain relief. The retention of educational content was largely successful, with fewer than 10% of patients failing to retain the information. Catastrophizing appears to play a significant role in pain outcomes, with lower catastrophizing scores associated with better pain relief. These findings underscore the potential value of PE in palliative care and highlight the need for further exploration into the psychological factors that influence pain management and patient education retention.

Figure 1: Retention of information from pain education (relating to the six components of the educational intervention ).

Figure 2 : response (pain relief) after palliative radiotherapy in patients with low (0-1) and high (II-IV) catastrophizing scores (item 1)

Keywords: pain education, radiotherapy, bone metastases