Bypass Clear Priming for Ventricular Septal Defect Surgery

This study is looking at whether using non-blood fluids to "prime" (fill) the heart-lung machine during cardiac surgery can reduce inflammation in young children. When children have open-heart surgery for a ventricular septal defect (a hole in the heart), a heart-lung machine is used. Typically, this machine is primed with donated blood products. This study wants to see if using non-blood products instead can lead to less inflammation after surgery. Reducing inflammation could help children recover more quickly. Researchers will measure changes in inflammatory markers like TNF-α and IL8 in the blood up to 24 hours after surgery. This study is for children aged 1 to 18 months, weighing between 5-10kg, who need heart surgery performed by Dr. Bohuta or Dr. Greene.

Study design
This is an interventional study with a planned enrollment of 60 participants. It is testing a procedure called "clear priming of the bypass pump."
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Researchers will measure inflammatory markers up to 24 hours after surgery.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07393243

Bypass Clear Priming VSD Cardiopulmonary Bypass Circuit Reduce Bypass Associated Inflammation?

Not Yet Recruiting
NAAges 1–18InterventionalTreatment
Seattle Children's Hospital
~60 participants
Updated 2026-02-06 on ClinicalTrials.gov
What's tested:Clear priming of the bypass pump

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Changes in RNA expression of the inflammatory marker TNF-α fold pre-cardiopulmonary bypass (CPB) to 24 hours post-CPB
Measured over Up to 24 hours post surgery
+3 more outcomes measured
Ventricular Septal Defect

NCT07393243

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Seattle Children's Hospital

    Seattle, Washingtonno site contact published

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Vishal Nigam, MD · PRINCIPAL_INVESTIGATOR · Seattle Children's Hospital

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Eligibility criteria

Inclusion

Weight between 5-10kg
Age 1-18 months
Requiring cardiopulmonary bypass as part of clinically indicated surgery
Surgery performed by Dr. Bohuta or Dr. Greene

Exclusion

Hemoglobin/hematocrit too low for clear CPB prime (post-dilution Hct \<24%)
Pre-operative ECMO support
Active infection
Not clinically appropriate for clear prime (instability, arrhythmias, desaturation, etc.)
Genetic syndrome
Pork allergy or family requests pork avoidance
  • Changes in RNA expression of the inflammatory marker TNF-α fold pre-cardiopulmonary bypass (CPB) to 24 hours post-CPBUp to 24 hours post surgery

    Plasma from blood samples collected during four timepoints spanning from pre-CPB to 24 hours post-CPB will be analyzed via RNA-Seq to assess changes in TNF-α fold levels. RNA-Seq measures change in gene expression relative to baseline, with higher relative gene expression indicated higher inflammation.

  • Changes in protein expression of the inflammatory marker TNF-α fold pre-cardiopulmonary bypass (CPB) to 24 hours post-CPBUp to 24 hours post surgery

    Plasma from blood samples collected during four timepoints spanning from pre-CPB to 24 hours post-CPB will be analyzed ELISA to assess changes in TNF-α fold levels. ELISA measures concentration in picograms per milliliter, with higher scores indicating more inflammation.

  • Changes in RNA expression of the inflammatory marker IL8 fold pre-cardiopulmonary bypass (CPB) to 24 hours post-CPBUp to 24 hours post surgery

    Plasma from blood samples collected during four timepoints spanning from pre-CPB to 24 hours post-CPB will be analyzed via RNA-Seq to assess changes in IL8 fold levels. RNA-Seq measures change in gene expression relative to baseline, with higher relative gene expression indicated higher inflammation.

  • Changes in protein expression of the inflammatory marker IL8 fold pre-cardiopulmonary bypass (CPB) to 24 hours post-CPBUp to 24 hours post surgery

    Plasma from blood samples collected during four timepoints spanning from pre-CPB to 24 hours post-CPB will be analyzed via ELISA to assess changes in IL8 fold levels. ELISA measures concentration in picograms per milliliter, with higher scores indicating more inflammation.