Effects Of Interactive Patient Smartphone Support App On Drug Adherence And Lifestyle Changes In Myocardial Infarction Patients: A Randomized Case Study


Cardiovascular disease is the single most common cause of death and is often preventable. In patients with myocardial infarction (MI), secondary prevention measures, pharmacologic, and behaviour-oriented are essential to reduce morbidity and mortality. Education concerning the benefits of adherence to prescribed medical treatments and lifestyle modification is a central component in reducing risk of recurrent events and improving quality of life (QoL). As medical and technological advances in the treatment of MI over the years have shortened hospital stays and thereby reduced patient contact and opportunities for education, patient participation in cardiac rehabilitation (CR) programs serves an important purpose and has proven to reduce risks. However, the underuse and ineffectiveness of these programs are a matter of concern.


Patients with myocardial infarction (MI) seldom reach recommended targets for secondary prevention. This study evaluated a Smartphone application (“app”) aimed at improving treatment adherence and cardiovascular lifestyle in MI patients.


A multi-centre and randomized case study.


A total of 174 ticagrelor-treated MI patients were randomized to either an interactive patient support tool (active group) or a simplified tool (control group) in addition to usual post-MI care. Primary end point was a composite non-adherence score measuring patient-registered ticagrelor adherence, defined as a combination of adherence failure events (2 missed doses registered in 7-day cycles) and treatment gaps (4 consecutive missed doses). Secondary end points included change in cardiovascular risk factors, quality of life (European Quality of Life–5 Dimensions), and patient device satisfaction (System Usability Scale).


Patient mean age was 58 years, 81% were men, and 21% were current smokers. At 6 months, greater patient registered drug adherence was achieved in the active vs. the control group (non-adherence score: 16.6 vs. 22.8 [P = .025]). Numerically, the active group was associated with higher degree of smoking cessation, increased physical activity, and change in quality of life; however, this did not reach statistical significance. Patient satisfaction was significantly higher in the active vs. the control group (system usability score: 87.3 vs. 78.1 [P = .001]).


In MI patients, use of an interactive patient support tool improved patient self-reported drug adherence and may be associated with a trend toward improved cardiovascular lifestyle changes and quality of life. Use of a disease-specific interactive patient support tool may be an appreciated, simple, and promising complement to standard secondary prevention.

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