Clinical trial Recruiting at 1 site Observational Ages 1 Day to 17

Microvascular circulation in kids after heart surgery

Official title: Assessment of Microvascular Circulation in the Pediatric Cardiac Surgery Patient

Run by Boston Children's Hospital · NCT07184476 · Data updated 2026-11-12

This study tests whether a handheld microcirculation camera can reveal microvascular status in children after heart surgery with Tetralogy of Fallot or VSD repair.

Quick facts

Study typeObservational
Ages1 Day to 17 Years
SexAll
Enrollment40 (estimated)
SponsorBoston Children's Hospital
Academic / other
Locations1 site (Boston, Massachusetts)
StatusRecruiting
StartedMarch 18, 2026
Main results expectedMarch 17, 2027
Study endsMarch 17, 2027
Registry record updatedMay 28, 2026
Trial IDNCT07184476 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are pediatric patients with a primary diagnosis of Tetralogy of Fallot or ventricular septal defect undergoing surgery at Boston Children's Hospital.

Probably not a fit

Patients without microvascular dysfunction or those not developing hemodynamic instability may see no direct benefit from this observational assessment.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study examines microvascular blood flow in pediatric patients undergoing heart surgery, using a handheld incident dark-field camera to provide real-time microcirculation data during and after cardiopulmonary bypass. Researchers compare microvascular signals with standard macrovascular measurements to explore potential discrepancies in vascular status. The goal is to see if microcirculatory information can improve understanding of postoperative stability beyond traditional vital signs. The study is led by Boston Children's Hospital and is conducted at their Boston, MA site. No interventions beyond observational microcirculation assessment are performed.

Why it matters

Potential benefit: If successful, the approach could improve understanding of postoperative microvascular status and potentially guide more precise management of pediatric patients after heart surgery.

How similar studies have gone: Prior work suggests microcirculatory assessment can reveal information not captured by macrovascular measures, but this specific pediatric, post-surgical use is not widely established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All patients with primary diagnosis of ventricular septal defect or tetrology of Fallot

Exclusion Criteria:

* Critical airway, congenital genetic abnormality of the mouth/tongue

Where it's running

  • Boston Children's Hospital
    Boston, Massachusetts, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.