Community-Based Remote Cardiac Rehabilitation Program for Pediatric Patients With Complex Congenital Heart Disease

Summary

This study is to develop a 12-week community-based remote cardiac rehabilitation program for pediatric patients with complex congenital heart disease and to assess its validity and safety.

For these children, a multidisciplinary approach including pediatric rehabilitation medicine, pediatric thoracic surgery, pediatrics, pediatric psychiatry, sports science, and nutrition is essential, but such comprehensive services are rarely available in Korea. As a result, pediatric cardiac rehabilitation at the community level is nearly nonexistent. Recent long-term retrospective cohort studies suggest that maintaining regular physical activity and aerobic capacity from early childhood significantly reduces future cardiovascular complications, emphasizing the importance of early pediatric cardiac rehabilitation. However, participation in existing programs is low due to limited accessibility.

The investigators hypothesize that a community-based remote cardiac rehabilitation program for these patients is both valid and safe. Participants will be children aged 8-18 years diagnosed with complex congenital heart disease , at least 3 months post-surgery, and stable cardiovascular status.

Interventions include supervised and self-directed cardiac rehabilitation exercises. Monitoring (heart rate, SpO2, ECG) will be performed in real-time, with non-real-time data collection of physical activity using smartwatches. The intervention lasts 12 weeks with a 12-week follow-up.

Validity measures include baseline evaluation, adherence, dropout rate, participant and parent satisfaction, and changes in cardiopulmonary exercise capacity, physical activity, body composition, fitness (6-minute walk, strength, flexibility, respiratory muscle strength), and questionnaires (physical activity, quality of life, exercise satisfaction, depression, psychological state).

Safety will be assessed by monitoring adverse events, vital signs, fatigue (Borg scale), and pain before and after exercise.

Conditions

• Congenital Heart Disease (CHD)
• Complex Congenital Heart Disease
• Congenital Heart Disease in Children

Interventions

OTHER

Community-based supervised remote cardiac rehabilitation

Community-based supervised remote cardiac rehabilitation begins with a weekly session led by exercise specialists, who use remote-based materials to match each participant's target heart rate and rate of perceived exertion (RPE). During these sessions, participants perform aerobic, strength, and respiratory exercises using progressive overload principles, with devices such as the POWERbreathe Plus supporting individualized respiratory training. Depending on the risk classification for each participant, they will be provided with different intensity of exercises (depending on their measured HR max, HRR, and/or RPE).

OTHER

Home-based cardiac rehabilitation program

Beyond the single supervised session, participants undertake four weekly home-based sessions. * Low-Risk Group: Aerobic and respiratory exercises are performed four times per week, plus strength training once or twice weekly. Each 60-minute session includes a 10-minute warm-up, 40-minute main exercise, and 10-minute cool-down. Indoor sessions use remote exercise content and respiratory training devices, while outdoor activities may involve walking, jogging, cycling, or swimming. Exercises progress in duration, intensity, and resistance. * Moderate-Risk Group: Aerobic and respiratory exercises are done four times per week with an RPE of 8-13. Intensity and duration increase gradually, contingent on symptom stability and improved endurance. * High-Risk Group: Aerobic and respiratory sessions occur four times a week at an RPE of 8-10, each lasting around 30 minutes (5-minute warm-up, 20-30-minute main exercise, 5-minute cool-down).

Sponsors & Collaborators

• University of Seoul

  collaborator OTHER

• Seoul National University Hospital

  lead OTHER

Study Design

Allocation

NA

Purpose

SUPPORTIVE_CARE

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

8 Years

Max Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-05-31

Primary Completion

2028-12-31

Completion

2029-12-31

Countries

• South Korea

Study Locations