The Effect of Roy Adaptation Model-Based Nursing Interventions on Psychological Resilience and Psychosocial Adjustment in Newly Diagnosed Breast Cancer Patients: A Randomized Controlled Trial

Breast cancer is one of the most common cancers among women in terms of incidence and mortality rates and continues to be a major public health problem that poses a threat to women's health. According to 2020 statistics, female breast cancer has overtaken lung cancer as the most commonly diagnosed cancer. With 19.3 million new cases and 10.0 million deaths in 2020, compared to 18.1 million cases and 9.6 million deaths in 2018, the global cancer burden is increasing. With this rise in breast cancer incidence, patients are exposed to many treatment methods and their side effects, such as hormonal drugs, surgical interventions, radiotherapy and chemotherapy, which cause intense stress due to the development of new treatment methods needed. Depending on the stage of the disease and individual characteristics of patients with breast cancer, several of these treatments may be preferred at the same time. Patients are exposed to many systemic effects of these interventions and treatment toxicity. While the aim of these treatments is to prolong the life of the patients and enable them to live with better quality of life, the physical, psychological, social well-being and daily vital functions of the patients may be negatively affected due to the prolonged duration of the interventions and the occurrence of systemic toxic effects. In addition to its high incidence, breast cancer is a serious disease due to its physical, psychological and emotional effects on women. It is important to identify and meet the information needs of women in this situation. Meeting these needs can improve the quality of life of these women by increasing their adaptation to the disease, improving their coping skills, accelerating their return to daily life, and reducing their anxiety and depression. This long treatment process in breast cancer treatment involves a chronic recovery process that includes physical deficiencies, psychological, occupational and sexual problems, with periods of recovery and exacerbation, creating short and long-term adaptation difficulties. In the literature, there are studies indicating that many of the symptoms seen after chemotherapy can be significantly reduced by counseling, education, care and coaching practices given to patients, and that this can be provided by nurses who are in constant communication with patients. The main goal of the supportive role of the nurse is to help patients understand, cope with and adapt to distressing situations. It is very important for nurses to provide holistic care to women diagnosed with breast cancer, to address all the problems experienced by the patient and to provide counseling for them. Psychiatric and psychosocial care and treatment in patients with medical illnesses are reported to improve patient care and quality, reduce mortality and morbidity, decrease hospitalization time and general costs, and contribute to improvement and well-being. Developing the ability to recognize behaviors that indicate the presence of psychosocial problems and to manage them effectively will not only contribute to the well-being of patients, but also increase the motivation of nurses to address and intervene in psychosocial problems. One of the many methods used for holistic care is interventions using models in practice. The Roy Adaptation Model (RAM), which is one of the widely used models in nursing, sees the person as a bio-psychosocial being in constant interaction with a changing environment. The environment includes focal, contextual and residual stimuli. The focal stimulus is the person's confrontation with the internal and external environment. The individual immediately resists these internal and external stimuli. Nurses aim to manage the focal stimulus first and then the contextual stimuli. Contextual stimuli are other stimuli that contribute to the focal stimuli and affect the current situation. Residual stimuli are implicit factors that influence the current situation. These are beliefs, behaviors and personal experiences. In the Roy Adaptation Model, which argues that nurses make interventions that facilitate the individual's adaptation to the environment, four different areas of adaptation are defined. These areas are physiological domain, self-concept domain, role function domain and interdependence domain. In these four adaptation domains, the nurse aims to improve the patient's interaction with the environment, develop adaptive behaviors and adapt to non-adaptive behaviors.