July 31, 2025

Personalized Smartphone Messaging to Support Cardiac Rehabilitation After PCI: A Randomized Controlled Trial (Preprint)

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Discussion

Randomized trial shows smartphone messaging can improve cardiovascular risk factors in recent PCI patients, suggesting enhanced engagement is key.

MAIN FINDING: Personalized smartphone messaging did not yield significant differences in primary outcomes, but high user engagement improved cardiovascular risk profiles.
KEY EVIDENCE: Patients who engaged more with the app showed a 69% adherence to risk factor targets compared to 19.2% for lower engagement, P < 0.001.
APPROACH: This single-blinded, 2-arm trial involved 120 PCI patients, comparing usual care with smartphone messaging over 6 months.
SIGNIFICANCE: The findings suggest that individualized mHealth interventions could enhance adherence to cardiovascular health guidelines among motivated patients.

Lee et al. (2025) studied this question.

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Randomized trial shows smartphone messaging can improve cardiovascular risk factors in recent PCI patients, suggesting enhanced engagement is key.