NCT06912412

Brief 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.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
45mo left

Started May 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress20%
May 2025Dec 2029

First Submitted

Initial submission to the registry

March 16, 2025

Completed
19 days until next milestone

First Posted

Study publicly available on registry

April 4, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

May 31, 2025

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2028

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2029

Last Updated

April 4, 2025

Status Verified

March 1, 2025

Enrollment Period

3.6 years

First QC Date

March 16, 2025

Last Update Submit

March 30, 2025

Conditions

Keywords

Complex congenital heart diseaseremote cardiac rehabilitationcardiac rehabilitationchildren cardiac rehabilitation

Outcome Measures

Primary Outcomes (2)

  • Drop-out rate

    baseline, 12 weeks after, 24 weeks after follow-up

  • Attendance rate

    baseline, 12 weeks after, 24 weeks after follow-up

Secondary Outcomes (42)

  • oxygen consumption, VO2

    baseline, 12 weeks after, 24 weeks after follow-up

  • maximal oxygen consumption, VO2 max

    baseline, 12 weeks after, 24 weeks after follow-up

  • Respiratory exchange rate, RER

    baseline, 12 weeks after, 24 weeks after follow-up

  • minute ventilation (VE)

    baseline, 12 weeks after, 24 weeks after follow-up

  • ventilation effectiveness, VE/VO2

    baseline, 12 weeks after, 24 weeks after follow-up

  • +37 more secondary outcomes

Study Arms (1)

Community-based remote cardiac rehabilitation group

EXPERIMENTAL

The group is provided with a single session of supervised remote cardiac rehabilitation session per week, and 4 sessions of home-based rehabilitation. During the supervised remote session, the EKG signal, heart rate and SpO2 of the participants are monitored in real-time using a single lead EKG and SpO2 monitor. Their activity levels are also recorded using a smartwatch, in number of steps and minutes in moderate-vigorous physical activity time

Other: Community-based supervised remote cardiac rehabilitationOther: Home-based cardiac rehabilitation program

Interventions

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).

Community-based remote cardiac rehabilitation group

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).

Community-based remote cardiac rehabilitation group

Eligibility Criteria

Age8 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Aged between 8 and 18 years
  • Diagnosed with complex congenital heart disease (Complex CHD) and have undergone surgery
  • At least 3 months post-cardiac surgery with a stable hemodynamic status
  • Capable of using remote programs (e.g., mobile apps, video-conferencing platforms) at home, with technical support from a caregiver
  • Either the participant or their caregiver agrees to study participation and has signed the informed consent form

You may not qualify if:

  • Patients with uncontrolled arrhythmias, acute heart failure, myocarditis, pericarditis, or other ongoing cardiovascular conditions.
  • Patients who are unable to exercise independently due to neurological or musculoskeletal disorders.
  • Patients who cannot understand or carry out remote rehabilitation program instructions due to cognitive impairment.
  • Patients showing clinically significant levels of depression or anxiety on the CDI-2 or RCMAS.
  • Patients who cannot cooperate with required study assessments (e.g., CPET, ECG, 6MWT).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Hospital

Seoul, 03080, South Korea

Location

MeSH Terms

Conditions

Heart Defects, Congenital

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesHeart DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Central Study Contacts

Sungbae Jo Research professor, Ph. D

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical associate professor

Study Record Dates

First Submitted

March 16, 2025

First Posted

April 4, 2025

Study Start

May 31, 2025

Primary Completion (Estimated)

December 31, 2028

Study Completion (Estimated)

December 31, 2029

Last Updated

April 4, 2025

Record last verified: 2025-03

Locations