Accepted for/Published in: Journal of Medical Internet Research
Date Submitted: Aug 22, 2023
Date Accepted: Mar 12, 2024
Effectiveness of smartphone app-based intervention with Bluetooth-connected monitoring devices and feedback system in heart failure (SMART-HF trial): A randomized controlled trial
ABSTRACT
Background:
We developed a mobile health platform for HF self-care to evaluate whether smartphone application (app)-based intervention with Bluetooth-connected monitoring devices and a feedback system can help improve HF symptoms.
Objective:
We developed a mobile health platform for HF self-care and aimed to evaluate whether smartphone application (app)-based intervention with Bluetooth-connected monitoring devices and a feedback system can help improve symptoms of HF.
Methods:
In this prospective, randomized, multicenter study, we enrolled patients aged ≥20 years hospitalized for acute HF who could use a smartphone from 7 tertiary hospitals in South Korea. In the intervention group (n=39), the apps were automatically paired with Bluetooth-connected monitoring devices. The patients could enter information on vital signs, HF symptoms, diet, medications, and exercise regimen into the app daily and receive feedback or alerts on their input. In the control group (n=38), patients could only enter their blood pressure, heart rate, and weight using conventional, non-Bluetooth devices and could not receive any feedback or alerts from the app. The primary endpoint was the change in dyspnea symptom scores from baseline to 4 weeks, assessed using a questionnaire.
Results:
The mobile-based health platform with Bluetooth-connected monitoring devices and a feedback system, demonstrated improvement in dyspnea symptoms in patients with HF. This study provides evidence and rationale for implementing mobile app-based self-care strategies and feedback for patients with HF.
Conclusions:
The mobile-based health platform with Bluetooth-connected monitoring devices and a feedback system, demonstrated improvement in dyspnea symptoms in patients with HF when compared with the control group. This study provides evidence and rationale for the implementation of mobile app-based self-care strategies and feedback for patients with HF. Clinical Trial: ClinicalTrials.gov NCT05668000 (https://clinicaltrials.gov/study/NCT05668000)
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