ESTRO 2022 - Abstract Book

S1003

Abstract book

ESTRO 2022

A. Gawish 1 , M. Walke 1 , B. Röllich 1 , T.B. Brunner 1

1 Medical Faculty University Hospital Magdeburg, University Clinic for Radiation Therapy, Magdeburg, Germany

Purpose or Objective Reducing the heart dose in left-sided breast cancer radiotherapy is very crucial. We sought to research the impact of using CPAP (continuous positive airway pressure) to minimize heart dose in breast cancer radiotherapy Materials and Methods Patients with left breast cancer receiving adjuvant radiotherapy were enrolled on this study using CPAP to minimize the heart dose for radiotherapy. Every patient was planned and simulated with and without CPAP, and the best dosimetric results provided the patient's treatment, respectively. Besides, information or data on the differences in heart and lung volume and position and boost cavity position with and without CPAP was well analyzed. Results Only fifteen patients were available for treatment. The median age was 60 years, all were treated to regional nodes and breast with 50 Gy. The mean lung volume present with CPAP was 30% greater than without CPAP (3370 cc vs. 2600 cc) and this increase the distance between the heart and the wall of the thorax from mean 2,7 cm (2,4-2,9) to mean 4,17 cm (3,8- 4,9).V20 of the lungs decreased from 14,8 to 11,43 with CPAP, and CPAP decreased median D2 heart dose from 14,4 to 10,4 Gy, regarding the DVH and the Dmean to LAD decreased too from 15,4 to 10,6. Remarked increase of the heart volume under CPAP, mean difference in heart volume is 83cc (40cc-153cc). Conclusion The CPAP helped the radiotherapy process and resulted in excellent treatment for left-sided breast cancer. This technique is worth further investigation or study to normal tissue sparing treatment of left-sided breast cancer patients. 1 CHU Habib Bourguiba, medical oncology, sfax, Tunisia; 2 CHU Habib Bourguiba, medical oncology, Sfax, Tunisia; 3 cHu Habib Bourguiba, medical oncology, Sfax, Tunisia; 4 CHU Habib Bourguiba, medical oncology, Sfax , Tunisia; 5 Chu Habib Bourguiba , Medical oncology, Sfax , Tunisia Purpose or Objective Assessing self-esteem in cancer patients constitutes an important part of the psychological management of such patients. It will improve their quality of life. The objective of our study is to assess self-esteem in cancer patients treated with a mastectomy. Materials and Methods Cooper Smith's Self-Esteem Questionnaire was asked to 55 patients between August 2020 and December 2020. The patients were treated with mastectomy for breast cancer. The questionnaire contains 50 questions: 26 questions for general self- esteem, 8 questions for social self-esteem, 8 questions for family self-esteem and 8 questions for professional self-esteem (only for the 39 working patients). The answer to every question was predefined: a positive or a negative answer. The scoring of the test was as follows: for the positive answer: 0 point for "being like me" and 1 point for "not being like me" and vice versa for the negative answer. Then the total score was calculated. Self-esteem was considered low if the score was below 32 and 40 respectively for non-working and working women. Results The majority of patients (37 patients) were over 45 years of age. All patients received chemotherapy and/or radiotherapy. Forty-one patients were married. Thirty-nine patients (71%) were non-working. Thirty seven patients had a psychological support by their families. The delay of mastectomy was less than 2 years in 35 patients (63%). There were no significant differences in self-esteem between married and unmarried women .For non-working women, the median score of self- esteem was 25[15-41] for non-working women and 41.5[26-4] for working women. Self-esteem was low in 32 (82%) non- working women and in 3 (18.75%) working women. Self-esteem was better in working women (p<0.001). Self-esteem was better in patients who had psychological support by their families. It was better in patients who had the mastectomy more than 10 years ago. Conclusion The self-esteem of our patients treated by mastectomy is poor. We should insist on the necessity of psychological care for such patients. PO-1183 Assessment of self-esteem in women with breast cancer treated with mastectomy S. khemiri 1 , R. Trigui 2 , W. Ben Kridis 3 , N. Toumi 4 , A. Khanfir 5

PO-1184 Mastectomy vs conservative treatment for breast ductal carcinoma in situ

B. Gil Haro 1 , C. De La Fuente Alonso 1 , S. Córdoba Largo 1 , M. Hernández Miguel 1 , E. Ramírez Medina 2 , M. Artés Caselles 1 , C. Corbacho Cuevas 3 , M. López Valcárcel 1 , R. Benlloch Rodríguez 1 , J. Velasco Jiménez 1 , S. Santana Jiménez 1 , O. Engel 1 , J. Romero Fernández 1