Congenital Heart DiseaseNCT02410473
Evaluation of Coagulation Testing in Patients Undergoing Cardiac Surgery
An observational study of Congenital Heart Disease, run by Boston Children's Hospital at 1 site in United States.
Trial summary
Neonates, children with single ventricle congenital heart disease, and those undergoing multiple complex cardiac surgeries are at high risk of increased perioperative blood loss, and blood product transfusions. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Congenital Heart Disease
- What is being tested?
- Discarded blood samples and Discarded Urine Sample
- How many people
- 200 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2015to 20 Mar 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Neonates and infants undergoing cardiac surgery with cardiopulmonary bypass
Who may be able to join
- Neonates and infant patients (0 -12 months of age) undergoing complex cardiac surgical procedures
- cardiac surgery patient > 12 months of age who has previously undergone 2 or more sternotomies
Who cannot join
- child in a moribund condition (American Society of Anesthesiology (ASA 5)
- children with a hematological and/or oncological disease
- Jehovah witnesses
- If the child is only undergoing a patent ductus arteriosus (PDA) ligation or other procedures not considered at risk for thrombosis and/or bleeding or they do not provide consent for enrollment (e.g. Ventricular Septal Defect repair)
Trial locations and contacts
1 site in 1 country.
United States1 site
Boston Children's Hospital
Boston, Massachusetts, 02115
About this study
Neonates, children with single ventricle congenital heart disease, and those undergoing multiple complex cardiac surgeries are at high risk of increased perioperative blood loss, and blood product transfusions. In addition, some of these patients will present an increased risk of postoperative thromboembolic complications. For a long time, bleeding management has been based on the empiric administration of different blood products (e.g. platelet concentrates, cryoprecipitates, and/or activated factor VII), topical hemostatic agents, and surgical manipulation. Recently, the use of viscoelastic tests (e.g. thromboelastography (TEG) or thromboelastometry (ROTEM)) increased, and allowed a better assessment of perioperative coagulopathy, and a more 'rational' treatment of bleeding. While TEG and ROTEM record the viscoelastic properties of whole blood by measuring mechanical impedance and related changes during clot formation, T2MR, a miniaturized, magnetic resonance-based diagnostic platform, measures how water molecules react in the presence of magnetic fields to evaluate a broad range of hemostasis measurements. In this study, we will prospectively collect demographic data, surgical characteristics, the amount of perioperative bleeding and blood product transfusion, results of laboratory assays, and postoperative outcomes (30-day follow-up or until discharge), with the aim to assess our current practice, and develop an algorithm-based approach for the administration of targeted blood product and pro-coagulant therapies. Our goals are: the reduction of blood product utilization, the reduction of the incidence of massive bleeding and postoperative thrombosis.
- Conditions
- Congenital Heart Disease
- Being tested
- Discarded blood samples, Discarded Urine Sample
- Keywords
- Congenital Heart Disease, Point-of-care coagulation monitoring
- Medical subject headings
- Heart Defects, Congenital
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Discarded blood samplesOther
Will utilize the discarded blood from routine clinical blood samples to evaluate the input of the newer technologies that helped for the diagnostic of coagulopathy.
Discarded Urine SampleOther
Will utilized the discarded urine samples from the routinely placed Foley catheter to measure the indices of oxidative stress.
What is being measured
The primary outcome is the main question the study is designed to answer.
Evaluate newer technologies for coagulation diagnostics with the aim to standardize bleeding management in high risk cardiac patients
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Apr 2015 (estimated)
- Study startApr 2015
- Primary completionJul 2017
- Study completion20 Mar 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Congenital Heart DiseaseStudies of the same condition, open and under way.
- More trials run by Boston Children's HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 200 participants (actual)
Sponsor and investigators
- Lead sponsor
- Boston Children's Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Juan Ibla, MD, Principal investigator, Boston Children's Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02410473
- Sponsor's protocol ID
- P00016625
- Status last verified
- Apr 2026
- First submitted
- 2 Apr 2015
- Last updated
- 2 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
Publications
Brummel-Ziedins K, Undas A, Orfeo T, Gissel M, Butenas S, Zmudka K, Mann KG. Thrombin generation in acute coronary syndrome and stable coronary artery disease: dependence on plasma factor composition. J Thromb Haemost. 2008 Jan;6(1):104-10. doi: 10.1111/j.1538-7836.2007.02799.x. Epub 2007 Oct 15.
PubMed 17944993Eisses MJ, Chandler WL. Cardiopulmonary bypass parameters and hemostatic response to cardiopulmonary bypass in infants versus children. J Cardiothorac Vasc Anesth. 2008 Feb;22(1):53-9. doi: 10.1053/j.jvca.2007.06.006. Epub 2007 Aug 22.
PubMed 18249331Emani S, Zurakowski D, Baird CW, Pigula FA, Trenor C 3rd, Emani SM. Hypercoagulability markers predict thrombosis in single ventricle neonates undergoing cardiac surgery. Ann Thorac Surg. 2013 Aug;96(2):651-6. doi: 10.1016/j.athoracsur.2013.04.061. Epub 2013 Jun 26.
PubMed 23809731Fries D, Innerhofer P, Streif W, Schobersberger W, Margreiter J, Antretter H, Hormann C. Coagulation monitoring and management of anticoagulation during cardiac assist device support. Ann Thorac Surg. 2003 Nov;76(5):1593-7. doi: 10.1016/s0003-4975(03)01034-8.
PubMed 14602292Koestenberger M, Cvirn G, Nagel B, Rosenkranz A, Leschnik B, Gamillscheg A, Beitzke A, Muntean W. Thrombin generation determined by calibrated automated thrombography (CAT) in pediatric patients with congenital heart disease. Thromb Res. 2008;122(1):13-9. doi: 10.1016/j.thromres.2007.08.016. Epub 2007 Oct 3.
PubMed 17915295Livingston ER, Fisher CA, Bibidakis EJ, Pathak AS, Todd BA, Furukawa S, McClurken JB, Addonizio VP, Jeevanandam V. Increased activation of the coagulation and fibrinolytic systems leads to hemorrhagic complications during left ventricular assist implantation. Circulation. 1996 Nov 1;94(9 Suppl):II227-34.
PubMed 8901751Nankervis CA, Preston TJ, Dysart KC, Wilkinson WD, Chicoine LG, Welty SE, Nelin LD. Assessing heparin dosing in neonates on venoarterial extracorporeal membrane oxygenation. ASAIO J. 2007 Jan-Feb;53(1):111-4. doi: 10.1097/01.mat.0000247777.65764.b3.
PubMed 17237658Tappenden KA, Gallimore MJ, Evans G, Mackie IJ, Jones DW. Thrombin generation: a comparison of assays using platelet-poor and -rich plasma and whole blood samples from healthy controls and patients with a history of venous thromboembolism. Br J Haematol. 2007 Oct;139(1):106-12. doi: 10.1111/j.1365-2141.2007.06732.x.
PubMed 17854314Vittinghoff E, McCulloch CE. Relaxing the rule of ten events per variable in logistic and Cox regression. Am J Epidemiol. 2007 Mar 15;165(6):710-8. doi: 10.1093/aje/kwk052. Epub 2006 Dec 20.
PubMed 17182981
Study at a glance
From the registry record, last updated by the sponsor on 2 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Coagulation Testing in Patients Undergoing Cardiac Surgery
- ClinicalTrials.gov ID
- NCT02410473
- Acronym / sponsor ID
- P00016625
- Conditions
- Congenital Heart Disease
- Keywords
- Congenital Heart Disease, Point-of-care coagulation monitoring
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 200 participants (actual)
- Lead sponsor
- Boston Children's HospitalUniversity, hospital or other
- Study start
- Apr 2015 (actual)
- Primary completion
- Jul 2017 (actual)
- Study completion
- 20 Mar 2025 (actual)
- First posted
- 7 Apr 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Neonates, children with single ventricle congenital heart disease, and those undergoing multiple complex cardiac surgeries are at high risk of increased perioperative blood loss, and blood product transfusions. In addition, some of these patients will present an increased risk of postoperative thromboembolic complications. For a long time, bleeding management has been based on the empiric administration of different blood products (e.g. platelet concentrates, cryoprecipitates, and/or activated factor VII), topical hemostatic agents, and surgical manipulation. Recently, the use of viscoelastic tests (e.g. thromboelastography (TEG) or thromboelastometry (ROTEM)) increased, and allowed a better assessment of perioperative coagulopathy, and a more 'rational' treatment of bleeding. While TEG and ROTEM record the viscoelastic properties of whole blood by measuring mechanical impedance and related changes during clot formation, T2MR, a miniaturized, magnetic resonance-based diagnostic platform, measures how water molecules react in the presence of magnetic fields to evaluate a broad range of hemostasis measurements. In this study, we will prospectively collect demographic data, surgical characteristics, the amount of perioperative bleeding and blood product transfusion, results of laboratory assays, and postoperative outcomes (30-day follow-up or until discharge), with the aim to assess our current practice, and develop an algorithm-based approach for the administration of targeted blood product and pro-coagulant therapies. Our goals are: the reduction of blood product utilization, the reduction of the incidence of massive bleeding and postoperative thrombosis.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Neonates and infants undergoing cardiac surgery with cardiopulmonary bypass
Key inclusion criteria (2 listed)
- Neonates and infant patients (0 -12 months of age) undergoing complex cardiac surgical procedures
- cardiac surgery patient > 12 months of age who has previously undergone 2 or more sternotomies
Key exclusion criteria (4 listed)
- child in a moribund condition (American Society of Anesthesiology (ASA 5)
- children with a hematological and/or oncological disease
- Jehovah witnesses
- If the child is only undergoing a patent ductus arteriosus (PDA) ligation or other procedures not considered at risk for thrombosis and/or bleeding or they do not provide consent for enrollment (e.g. Ventricular Septal Defect repair)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Discarded blood samplesWill utilize the discarded blood from routine clinical blood samples to evaluate the input of the newer technologies that helped for the diagnostic of coagulopathy. | Other | – |
| Discarded Urine SampleWill utilized the discarded urine samples from the routinely placed Foley catheter to measure the indices of oxidative stress. | Other | – |
Primary outcome
Evaluate newer technologies for coagulation diagnostics with the aim to standardize bleeding management in high risk cardiac patients
Time frame: 1 year
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jun 2026.
- Background: PubMed 17944993Brummel-Ziedins K, Undas A, Orfeo T, Gissel M, Butenas S, Zmudka K, Mann KG. Thrombin generation in acute coronary syndrome and stable coronary artery disease: dependence on plasma factor composition. J Thromb Haemost. 2008 Jan;6(1):104-10. doi: 10.1111/j.1538-7836.2007.02799.x. Epub 2007 Oct 15.
- Background: PubMed 18249331Eisses MJ, Chandler WL. Cardiopulmonary bypass parameters and hemostatic response to cardiopulmonary bypass in infants versus children. J Cardiothorac Vasc Anesth. 2008 Feb;22(1):53-9. doi: 10.1053/j.jvca.2007.06.006. Epub 2007 Aug 22.
- Background: PubMed 23809731Emani S, Zurakowski D, Baird CW, Pigula FA, Trenor C 3rd, Emani SM. Hypercoagulability markers predict thrombosis in single ventricle neonates undergoing cardiac surgery. Ann Thorac Surg. 2013 Aug;96(2):651-6. doi: 10.1016/j.athoracsur.2013.04.061. Epub 2013 Jun 26.
- Background: PubMed 14602292Fries D, Innerhofer P, Streif W, Schobersberger W, Margreiter J, Antretter H, Hormann C. Coagulation monitoring and management of anticoagulation during cardiac assist device support. Ann Thorac Surg. 2003 Nov;76(5):1593-7. doi: 10.1016/s0003-4975(03)01034-8.
- Background: PubMed 17915295Koestenberger M, Cvirn G, Nagel B, Rosenkranz A, Leschnik B, Gamillscheg A, Beitzke A, Muntean W. Thrombin generation determined by calibrated automated thrombography (CAT) in pediatric patients with congenital heart disease. Thromb Res. 2008;122(1):13-9. doi: 10.1016/j.thromres.2007.08.016. Epub 2007 Oct 3.
- Background: PubMed 8901751Livingston ER, Fisher CA, Bibidakis EJ, Pathak AS, Todd BA, Furukawa S, McClurken JB, Addonizio VP, Jeevanandam V. Increased activation of the coagulation and fibrinolytic systems leads to hemorrhagic complications during left ventricular assist implantation. Circulation. 1996 Nov 1;94(9 Suppl):II227-34.
- Background: PubMed 17237658Nankervis CA, Preston TJ, Dysart KC, Wilkinson WD, Chicoine LG, Welty SE, Nelin LD. Assessing heparin dosing in neonates on venoarterial extracorporeal membrane oxygenation. ASAIO J. 2007 Jan-Feb;53(1):111-4. doi: 10.1097/01.mat.0000247777.65764.b3.
- Background: PubMed 17854314Tappenden KA, Gallimore MJ, Evans G, Mackie IJ, Jones DW. Thrombin generation: a comparison of assays using platelet-poor and -rich plasma and whole blood samples from healthy controls and patients with a history of venous thromboembolism. Br J Haematol. 2007 Oct;139(1):106-12. doi: 10.1111/j.1365-2141.2007.06732.x.
- Background: PubMed 17182981Vittinghoff E, McCulloch CE. Relaxing the rule of ten events per variable in logistic and Cox regression. Am J Epidemiol. 2007 Mar 15;165(6):710-8. doi: 10.1093/aje/kwk052. Epub 2006 Dec 20.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Juan Ibla, MD principal investigator
Boston Children's Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Congenital Heart Disease, run by Boston Children's Hospital at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Evaluate newer technologies for coagulation diagnostics with the aim to standardize bleeding management in high risk cardiac patients (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02410473, which also lists 9 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jun 2026.