Thromboelastography (TEG) In the Intrauterine Growth Restriction (IUGR) Neonatal Population by Gestational Age
연구 개요
상태
정황
상세 설명
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.
연구 유형
연락처 및 위치
연구 장소
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Pennsylvania
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Pittsburgh, Pennsylvania, 미국, 15213
- UPMC Magee-Womens Hospital
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참여기준
자격 기준
공부할 수 있는 나이
- 어린이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
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)
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
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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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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Dynamic hemostasis measured by Thromboelastography (TEG) in intrauterine growth restriction (IUGR) neonatal population verse non-IUGR populations
기간: 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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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Clot formation measured by Thromboelastography (TEG) in intrauterine growth restriction (IUGR) neonatal population verse non-IUGR populations
기간: 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
기간: 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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공동 작업자 및 조사자
수사관
- 수석 연구원: Jonathan H. Waters, MD, University of Pittsburgh
간행물 및 유용한 링크
일반 간행물
- 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.
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최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
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