Abstract
Purpose
To explores the behavioral intention of breast cancer patients undergoing chemotherapy to prevent PICC-related thrombosis based on the Theory of Planned Behavior.
Methods
This qualitative study employed purposive sampling and conducted semi-structured interviews with 14 breast cancer patients undergoing chemotherapy in the outpatient chemotherapy ward of a tertiary A-level comprehensive hospital in Beijing from July to August 2023. Data were analyzed using Colaizzi's descriptive analysis framework.
Results
Data analysis identified 10 themes were derived from 4 aspects. Regarding behavioral attitude, three themes were condensed: (1) Considering the benefits of preventive measures, (2) Simple and easy preventive measures, (3) Underestimating the importance of PICC-related thrombosis prophylaxis. Subjective norms yielded two main themes and five sub-themes: (1) Support from those close to the patient motivates adherence to prophylaxis (Support from the patient's family, healthcare professionals, other patients), (2) Patients are influenced by personal factors to form an internal driving force (physical symptoms, Fear of PICC-related thrombosis). Regarding perceived behavioral control, three main themes and four sub-themes were extracted: (1) Obstacles before actual prevention exercise (Prevention information, Hard to remember information), (2) Forgetfulness is the main obstacle factor, (3) Wanting to overcome barriers to adhere to regular prevention (Confidence to overcome obstacles, Hope to get support).
Conclusions
Breast cancer patients undergoing chemotherapy are difficult to accurately remember the prevention knowledge and prone to forgetfulness in the prevention of PICC-related thrombosis, which leads to the poor overall prevention compliance and suboptimal preventive effects. Interventions to address the preventive compliance problems of patient should be developed in three areas: the patients themselves, the supporters around the patient and the healthcare professionals.