Monitoring heart health in newborns with univentricular heart defects using a special device

Interstage Monitoring Using an Implantable Loop Recorder: A Pilot Study

EARLY_PHASE1 · Boston Children's Hospital · NCT05744934

This study is testing a special heart monitor for newborns with a specific heart condition to see if it can safely track their heart health after surgery.

Quick facts

PhaseEARLY_PHASE1
Study typeInterventional
Enrollment10 (estimated)
AgesN/A to 30 Days
SexAll
SponsorBoston Children's Hospital (other)
Locations1 site (Boston, Massachusetts)
Trial IDNCT05744934 on ClinicalTrials.gov

What this trial studies

This pilot study aims to assess the feasibility and safety of implanting a loop recorder in newborns who have undergone stage 1 palliation for univentricular heart defects. The LUX-DX™ device will be implanted during chest closure surgery to continuously monitor heart rate and detect arrhythmias during the critical interstage period. Participants will be monitored for a duration ranging from 6 months to 3 years to gather data on the device's effectiveness and safety in this vulnerable population.

Who should consider this trial

Good fit: Ideal candidates are newborns with single ventricle physiology undergoing stage 1 palliation within the first month of life.

Not a fit: Patients who are premature, have low birth weight, or require devices sensitive to magnetic fields may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could enhance monitoring and management of heart conditions in newborns, potentially improving outcomes.

How similar studies have performed: While this approach is innovative, similar studies using implantable devices for continuous monitoring in pediatric populations have shown promise.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with single ventricle physiology undergoing stage 1 palliation in the 1st month of life

Exclusion Criteria:

* Prematurity (\<36 weeks gestational age)
* Birth weight \<2.5 kg
* Hybrid stage 1 palliation (patent ductus arteriosus stenting, bilateral pulmonary artery bands)
* Presence and/or need for devices sensitive to magnetic fields such as hearing aids, pacemaker, and other implanted devices.
* Clinical team does not think that the patient is a good candidate

Where this trial is running

Boston, Massachusetts

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Univentricular Heart

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.