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- Klinische proef NCT04907578
Thromboelastography (TEG) In the Intrauterine Growth Restriction (IUGR) Neonatal Population by Gestational Age
Studie Overzicht
Toestand
Conditie
Gedetailleerde beschrijving
The investigators plan to 1.) examine dynamic hemostasis as measured by TEG in the intrauterine growth restriction (IUGR) neonatal population due to a high risk of requiring blood transfusions, 2.) determine the influence of gestational age on TEG in this population, and 3.) examine the utility of TEG as a tool for identifying coagulopathy in IUGR neonates.
The investigators hypothesize that thromboelastography parameters will change with gestational age in the IUGR population in a manner similar to non-IUGR populations and that neonatal comorbidities, maternal factors, and socioeconomic status will influence TEG values; TEG is likely a useful marker of dynamic hemostasis in this neonatal subpopulation.
Studietype
Contacten en locaties
Studie Locaties
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Pennsylvania
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Pittsburgh, Pennsylvania, Verenigde Staten, 15213
- UPMC Magee-Womens Hospital
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
Participants included for medical record data and blood sample collection will be:
- Neonates diagnosed with intrauterine growth restriction, defined as a weight below the estimated 10th percentile and accordingly identified as such in any peripartum evaluation AND
- May have additional comorbidities AND
- Full term IUGR neonates will be have a gestational age of 37 weeks or greater OR
- Preterm IUGR neonates will have a gestational age less than 37 weeks OR
- Preterm IUGR neonates will have a gestational age less than 37 weeks
Participants included for medical record review data collection ONLY will be:
Mothers of eligible neonates
Exclusion Criteria:
- Constitutionally (familial) low birth weight, i.e. small for gestational age, babies OR
- Born to women with life threatening coexisting morbidities (this may include severe pre-eclampsia, diabetes or suspected infections including HIV or herpes) OR
- Neonates with an abnormal delivery or perinatal course including:
Fetal demise, death in the first week after birth, neonatal encephalopathy, meconium aspiration, and physical birth injuries (fractures and brachial plexus injuries)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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postpartum full term neonates
immediate postpartum full term neonates with no intrauterine growth restricted
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intrauterine growth restricted neonates
preterm or full-term intrauterine growth restricted neonates
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Dynamic hemostasis measured by Thromboelastography (TEG) in intrauterine growth restriction (IUGR) neonatal population verse non-IUGR populations
Tijdsspanne: Immediately postpartum
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Discarded blood specimens (1-2 mL of placental umbilical vein blood following umbilical cord clamping) will be needed to perform TEG analysis, in duplicate when possible, immediately following the live birth of a viable neonate.
The output of the TEG will include maximum amplitude (mm), which is a reflection of clot strength and a function of the maximum dynamic properties of fibrin and platelet bonding and correlates to platelet function.
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Immediately postpartum
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Clot formation measured by Thromboelastography (TEG) in intrauterine growth restriction (IUGR) neonatal population verse non-IUGR populations
Tijdsspanne: Immediately postpartum
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Discarded blood specimens (1-2 mL of placental umbilical vein blood following umbilical cord clamping) will be needed to perform TEG analysis, in duplicate when possible, immediately following the live birth of a viable neonate.
The output of the TEG will include R time (min), which represents a period of latency from start to initial fibrin formation.
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Immediately postpartum
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Rate of clot formation measured by Thromboelastography (TEG) in intrauterine growth restriction (IUGR) neonatal population verse non-IUGR populations
Tijdsspanne: Immediately postpartum
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Discarded blood specimens (1-2 mL of placental umbilical vein blood following umbilical cord clamping) will be needed to perform TEG analysis, in duplicate when possible, immediately following the live birth of a viable neonate.
The output of the TEG will include α-Angle (degree), which measures the speed at which fibrin build-up and cross-linking takes place, assesses the rate of clot formation.
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Immediately postpartum
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Jonathan H. Waters, MD, University of Pittsburgh
Publicaties en nuttige links
Algemene publicaties
- Waters JH. The role of viscoelastic testing in the management of the parturient. Transfusion. 2020 Oct;60 Suppl 6:S70-S74. doi: 10.1111/trf.15928. Epub 2020 Jun 22.
- Sayce AC, Neal MD, Leeper CM. Viscoelastic monitoring in trauma resuscitation. Transfusion. 2020 Oct;60 Suppl 6:S33-S51. doi: 10.1111/trf.16074.
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- STUDY21040124
Informatie over medicijnen en apparaten, studiedocumenten
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