Objective: This study was carried out to determine the effect of self-management support given to patients diagnosed with hypertension on the hypertension knowledge level, treatment adherence and self-care management, and to examine the changes in patients' blood pressure after the self-management support. Background: The rise of chronic diseases such as hypertension necessitates the equipment of patients with sufficient knowledge and skills necessary to manage their disease and self-care. Methods: This randomised controlled research was conducted with a total of 137 patients, including 69 intervention and 68 control patients. Data were collected using the “Patient Information Form”, "Hypertension Knowledge-Level Scale", "Hill-Bone Compliance to High Blood Pressure Therapy Scale" and "Self Care Management Process in Chronic Illness Scale" at the first interview and the last interview three months after the first interview. One week after the first interview, the patients in the intervention group received self-management support including information about hypertension and its management and blood pressure measurement skills. Results: After self-management support, a significant improvement was found in hypertension knowledge level (p=0.000), treatment adherence (p=0.000), and self-care management (p=0.000) of patients in the intervention group A significant decrease was determined in systolic (p=0.000) and diastolic blood pressure (p=0.000) of patients in the intervention group. Conclusion: Self-management support has shown positive effects in increasing hypertension knowledge level, adherence to hypertension treatment, self-care management, and blood pressure control in patients diagnosed with hypertension. This study also provides nurses with an approach in which they can effectively use training and counselling roles for patients. Implications for research, policy, and practice: Patients diagnosed with hypertension should be educated by nurses about the disease. Nurses should teach the patients who are diagnosed with hypertension the ability to monitor their blood pressure at home. Cardiovascular rehabilitation nursing units should be established in hospitals to provide more effective self-management support to hypertensive patients.

What is already known about the topic?

Education and support programs offered by nurses are important in controlling chronic diseases such as hypertension.
Guidelines for the management of arterial hypertension emphasise the importance of self-management support in controlling hypertension.

What this paper adds

Self-management support is an effective approach to increasing hypertension knowledge level, adherence to treatment, and self-care management.
Self-management support helps patients to achieve blood pressure control and optimal blood pressure values.
Self-management support empowers patients by increasing their control over the disease.