ESTRO 2023 - Abstract Book

S2088

Digital Posters

ESTRO 2023

Between July 2011 to July 2022, 44 patients with inoperable pancreatic cancer who received SABR (either 3 or 5 fractions) at our institution were included in this study. The median follow-up was 9.6 months (range 1.0-34.2). 80% of the patients received chemotherapy prior to SABR and none of them were treated with concurrent chemotherapy during SABR.

The median OS was 9.2 months (95% CI5.9-12.5) and the OS at 12 months was 35%. Acute and late toxicities from stereotactic treatment include fatigue, nausea and bowel disturbance. 50% of patients reported grade 1 and grade 2 fatigue within 12 months post completion of RT. No greater than grade 3 post RT toxicity has been reported in this cohort.

No statistically significant differences in OS were found when comparing the median groups of patients’ ages, number of fractions, chemotherapy prior SABR status, BED, gross tumour volume (GTV) and planning target volume (PTV) s (p>0.05 of all factors).

Conclusion

The use of SABR in our cohort of patients with inoperable pancreatic cancer has shown promising OS rates irrespective of patients’ ages, number of fractions, prior chemotherapy status, BED, GTV and PTV sizes, with excellent post RT toxicity profile.

PO-2319 Evaluation of radiation therapist - cancer patient relationship and patient's level of satisfaction

W. Kaabia 1 , G.E.F. Noubbigh 1 , F. Bouguerra 1 , S. Yahyaoui 1 , S. Zarraa 1 , H. Ayadi 1 , A. Ghorbel 1 , R. Abidi 1 , C. Nasr 1

1 Salah Azaiez National Institute of Oncology, Radiotherapy Department, Tunis, Tunisia

Purpose or Objective Cancer represents a real worldwide pandemic, becoming the second most fatal disease in the world. It gravely affects the physical state of the patient, same as their mental health and emotional state. In the context of radiotherapy, where cancer could cause an added level of emotional distress on patients, it is crucial for the stability of an adequate interpersonal relationship with patients during treatment period to ensure that both patients and RTT are satisfied with the quality of service. Our study is aimed to evaluate the different aspects of the patient-technician relationship and appreciate the patients’ level of satisfaction of the provided care. Materials and Methods A transversal descriptive study realised by usage of a paper questionnaire including both the Jefferson scale of perceived empathy and the EORTC (European organisation for research and treatment of cancer) scale OUT-PATSAT35 for outpatient satisfaction with care, conducted at the radiotherapy department of the Salah Azaiez National Institute of Oncology, targeting cancer patients in course of treatment between February 2022 and April 2022. Results Our population is composed of 50 patients, predominantly female with a ratio (F/M) at 1.6 and an average age of 46 years old. We evaluated the patients’ perspective on the technical abilities of RTT, where results were decent in general. Regarding the psychological aspect, particularly, the ability of RTT to show empathy, patients rated their RTTs with a below average score of 3.33 on the Jefferson scale (slightly disagree, range: 2.68-3.8). Furthermore, an above average score on the EORTC OUT-PATSAT 35 Scale of 2.72 (Good, range 2.37-3.24) was found from the results of satisfaction of patients towards the infrastructure, quality of offering and RTT. Conclusion Our results showed a decency of offer by RTT to patients that included different aspects of treatment. Reported results confirmed the importance of the role that RTT plays on the levels of satisfaction of patients, which indicates a good sustainable patient-technician relationship.

PO-2320 Treatment non-compliance analysis of a single room proton center

M. Butkus 1 , R. Kaderka 1 , M. Abramowitz 1 , M. De Ornelas 1

1 University of Miami, Radiation Oncology, Miami, USA

Purpose or Objective Non-compliance (NC) to a scheduled treatment regimen in radiotherapy has been shown to have negative impact on overall survival and quality of care. We retrospectively evaluated NC at a single room proton center as a preliminary to further investigation of factors contributing to NC. Materials and Methods Treatment records for 435 patients (11714 delivered fractions) were reviewed for NC to a treatment regimen, defined as any missed treatment other than planned breaks. NC was further subset by cause (facility downtime or patient specific), disease site (Breast, CNS, GI, GU, H&N, other), and age (13-27, 28-35, 36-45, 46-55, 56-65, 66-75, 76-98). Z-tests were