ESTRO 2022 - Abstract Book

S1243

Abstract book

ESTRO 2022

Conclusion Conclusions: Our study supports the role of SBRT for elderly oligometastatic patients, highlighting the potential of this therapeutic option in the management of older oncological patients.

PO-1464 Usage pattern of Complementary and alternative medicine in Cancer Patients: An Indian perspective

J. Pattanaik 1 , V. Pareek 2 , M. Barthwal 2 , S. Sanyal 3 , S. Pandey 4 , G. Shyam 3 , S. Nirala 3 , D.V.S. Praveen 3 , S.K. Samala 3 , D. Bora 3 , S. Mandal 3 , A. A 3 , V. Ghosh 3 , A. Ravi 3 , A.P. Solanki 1 , R. Sisodiya 3 , M.S. Tanwar 3 , D.N. Sharma 3 , S. Mallick 2 1 IRCH,AIIMS, Radiation Oncology, New Delhi, India; 2 National Cancer Institute, AIIMS, Radiation Oncology, New Delhi, India; 3 IRCH, AIIMS, Radiation Oncology, New Delhi, India; 4 IRCH, AIIMS, Radiation Oncolgy, New Delhi, India Purpose or Objective Cancer management is a major stigma in India and due to the known side-effects of the available treatment, patients often turn to complementary and alternative medicine (CAM). The present study was conducted to find prevalence rate of CAM use among cancer patients undergoing allopathic treatment in a health facility and to compare the CAM usage patterns among patients at different stages of diagnosis and treatment. Materials and Methods In this hospital-based cross-sectional study, conducted among patients attending Radiotherapy Outpatient Department (OPD) at NCI, AIIMS and IRCH, AIIMS, New Delhi, a total of 350 cancer patients participated in the study. Statistical methods like normal test of proportions, Chi-square ( χ 2 ) test, logistic regression analysis for estimation of risk factors of CAM use were applied to carry out the data analyses using Statistical Package for Social Sciences (SPSS)-16 software package. Further to investigate some psychosocial, cultural, and demographic correlates/predictors of CAM use were assessed. Results Among the 350 patients assessed 275 returned the survey-based questionnaire. The most common CAM therapy in use was found to be ayurvedic treatment reported by 23.4% patients. Overall CAM use was found to be 39.6%. Among the factors associated with CAM use, low socioeconomic status contributed maximum. Among the CAM users, ayurvedic treatment contributed maximum to symptom relief followed by homeopathic medications. The most common reason for CAM usage was found to be the previous benefits gained by other patients as was reported by 26.4% users. The analysis revealed a significant correlation between education and CAM use during therapy and past use. Conclusion Our survey explores the impact of CAM use among cancer population in India and the need for conducting further studies to evaluate the efficacy of various CAM therapies in use for cancer especially in advanced cases. It is necessary that health professional explore the use of CAM with their cancer patients, educate them about potentially beneficial therapies in light of the limited available evidence of effectiveness, and work towards an integrated model of healthcare provision. 1 Erasmus MC Cancer Institute, University Medical Center Rotterdam, Department of Radiotherapy, Rotterdam, The Netherlands; 2 Faculty of Applied Sciences, Delft University of Technology, Department of Radiation Science and Technology, Delft, The Netherlands Purpose or Objective Hyperthermia (HT) is the elevation of tumour temperature up 43°C. Randomized clinical trials have shown the benefit of HT as a sensitizing agent for radiation therapy (RT). Currently, in vivo dosimetry is an essential part of both modern RT and HT. In HT, dose delivery is a two-step process. Energy deposition can be predicted directly inside the patient, while the resulting tissue temperature depends on the local energy removal by blood perfusion. As blood perfusion is patient, tumour and temperature dependent, temperature is difficult to predict. Consequently, the common accepted procedure in regular HT treatments is to measure in vivo temperature. However, the lack of standardization on temperature acquisition procedures, as well as in corresponding reported thermal dose parameters are still hampering implementation of applying thermal therapy to a prescribed thermal dose. In this study, we performed a systematic review to investigate the influence of HT treatment characteristics on the predictive ability of temperature descriptors for treatment outcome and toxicity. Materials and Methods A systematic review was conducted in accordance with the PRISMA guidelines. EMBASE, Web of Science, Cochrane library and clinicaltrials.gov were the four searched databases. The search was limited to English articles, but it was not restricted to publication date. A filter for full-length published papers and clinical studies was applied. Both single-arm and 2-arm studies, randomized and non-randomized, retrospective and prospective were included. Furthermore, these fulfilled the following criteria: (1) cancer treatment with HT and RT; (2) associations of in vivo measured temperature/thermal descriptors with treatment outcome or toxicity were investigated. We tested possible influences of HT characteristics on reported relation of temperature/thermal parameters with outcome and/or toxicity with Fisher exact test (two-tailed). A p − value < 0.05 was considered significant. PO-1465 Factors influencing hyperthermia in vivo thermal dosimetry, a systematic review C. Seabra 1 , S. Curto 1 , G.C. van Rhoon 1,2