Abstract Aims: To develop a smartphone application and investigate its effectiveness on patients with heart failure after using the heart failure self-health management application..~Design: The single-group pre- and post-test experimental design was adopted. Methods: This study used convenience sampling and the one-group pretest and posttest design as the research methods and developed the heart failure self-health management application using the Google cloud database and Web App. The research period was from July 1 to December 31, 2019, a total of 36 patients diagnosed with heart failure during hospitalization completed the pretest and posttest. This App (1) provides text and video heart failure self-care knowledge content; (2) enables users to record and browse blood pressure, heart rate, and weight; and (3) provides the data from the Dutch Heart Failure Knowledge Scale and Technology Acceptance Model.~Keywords: heart failure; self-health management; application
Aims: To develop a smartphone application and investigate its effectiveness on patients with heart failure after using the heart failure self-health management application..