Investigating the Structured Use of Ultrasound Scanning for Fetal Growth

NCT ID: NCT03662178

Last Updated: 2025-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

56000 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-09-01

Study Completion Date

2029-09-30

Brief Summary

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Fetal growth restriction during pregnancy represents one of the biggest risk factors for stillbirth (Gardosi et al, 2013), with 'about one in three term, normally formed antepartum stillbirths are related to abnormalities of fetal growth' (MBRRACE, 2015).

Therefore, antenatal detection of growth restricted babies is vital in order to be able to monitor and decide the appropriate delivery timing.

However, antenatal detection of SGA babies has been poor, varying greatly across trusts in England in those that calculate their rates (NHS England, 2016). Most trusts do not calculate their detection rates and rates are therefore unknown. It is estimated that routine NHS care detects only 1 in 4 growth restricted babies (Smith, 2015).

Oxford University Hospitals NHS Foundation Trust, in partnership with the Oxford Academic Health Science Network (AHSN) has introduced a clinical care pathway (the Oxford Growth Restriction Pathway (OxGRIP)) designed to increase the rates of detection of these at risk babies. The pathway is intended to increase the identification of babies who are at risk of stillbirth, in order to try to prevent this outcome, whilst making best usage of resources, and restricting inequitable practice and unnecessary obstetric intervention.

It has been developed with reference to a body of research, however, the individual parts of care provided have not been put together in a pathway in this manner before. Therefore it is important to examine whether the pathway meets its goals of improving outcomes for babies in a 'real world' setting.

The principles of the pathway are

1. A universal routine scan at 36 weeks gestation.
2. Additional growth scans at 28 and 32 weeks gestation based on a simplified assessment of risk factors and universal uterine artery Doppler at 20 weeks gestation.
3. Assessment of further parameters other than estimated fetal weight associated with adverse perinatal outcome (eg growth velocity, umbilical artery Doppler and CPR).

The clinical data routinely collected as a result of the introduction of the pathway offers a valuable and unique resource in identifying and analysing in the effects of the pathway on its intended outcomes and also in investigating and analysing other maternal, fetal and neonatal complications and outcomes, establishing normal / reference ranges for ultrasound values.

Detailed Description

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There is no requirement for patient participation in this study. All data collected and analysed is routinely collected clinical data.

Conditions

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Stillbirth Fetal Death Fetal Growth Retardation Small for Gestational Age Fetal Growth Restriction Perinatal Death Intrauterine Growth Restriction

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Eligibility Criteria

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Exclusion Criteria

* Women who have opted out of research related to pregnancy in this pregnancy whilst receiving care by the OUHFT.
* If intrapartum care takes place outside of the OUHFT.
Minimum Eligible Age

16 Years

Maximum Eligible Age

60 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Oxford University Hospitals NHS Trust

OTHER

Sponsor Role lead

Responsible Party

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Lawrence Impey

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Lawrence Impey, FRCOG

Role: STUDY_DIRECTOR

Oxford University Hospitals NHS Trust

Locations

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Oxford University Hospitals NHS Foundation Trust

Oxford, Oxfordshire, United Kingdom

Site Status RECRUITING

Countries

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United Kingdom

Central Contacts

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Lawrence Impey

Role: CONTACT

01865 851165

Christina Aye

Role: CONTACT

Facility Contacts

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Lawrence Impey

Role: primary

Christina Aye

Role: backup

References

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Chauhan SP, Magann EF. Screening for fetal growth restriction. Clin Obstet Gynecol. 2006 Jun;49(2):284-94. doi: 10.1097/00003081-200606000-00010.

Reference Type BACKGROUND
PMID: 16721107 (View on PubMed)

Gardosi J, Francis A. Adverse pregnancy outcome and association with small for gestational age birthweight by customized and population-based percentiles. Am J Obstet Gynecol. 2009 Jul;201(1):28.e1-8. doi: 10.1016/j.ajog.2009.04.034.

Reference Type BACKGROUND
PMID: 19576372 (View on PubMed)

Sovio U, White IR, Dacey A, Pasupathy D, Smith GCS. Screening for fetal growth restriction with universal third trimester ultrasonography in nulliparous women in the Pregnancy Outcome Prediction (POP) study: a prospective cohort study. Lancet. 2015 Nov 21;386(10008):2089-2097. doi: 10.1016/S0140-6736(15)00131-2. Epub 2015 Sep 7.

Reference Type BACKGROUND
PMID: 26360240 (View on PubMed)

Stacey T, Thompson JM, Mitchell EA, Zuccollo JM, Ekeroma AJ, McCowan LM. Antenatal care, identification of suboptimal fetal growth and risk of late stillbirth: findings from the Auckland Stillbirth Study. Aust N Z J Obstet Gynaecol. 2012 Jun;52(3):242-7. doi: 10.1111/j.1479-828X.2011.01406.x. Epub 2012 Jan 25.

Reference Type BACKGROUND
PMID: 22276935 (View on PubMed)

Papageorghiou AT, Kennedy SH, Salomon LJ, Ohuma EO, Cheikh Ismail L, Barros FC, Lambert A, Carvalho M, Jaffer YA, Bertino E, Gravett MG, Altman DG, Purwar M, Noble JA, Pang R, Victora CG, Bhutta ZA, Villar J; International Fetal and Newborn Growth Consortium for the 21st Century (INTERGROWTH-21st). International standards for early fetal size and pregnancy dating based on ultrasound measurement of crown-rump length in the first trimester of pregnancy. Ultrasound Obstet Gynecol. 2014 Dec;44(6):641-8. doi: 10.1002/uog.13448. Epub 2014 Nov 2.

Reference Type BACKGROUND
PMID: 25044000 (View on PubMed)

Gardosi J, Madurasinghe V, Williams M, Malik A, Francis A. Maternal and fetal risk factors for stillbirth: population based study. BMJ. 2013 Jan 24;346:f108. doi: 10.1136/bmj.f108.

Reference Type BACKGROUND
PMID: 23349424 (View on PubMed)

Other Identifiers

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17/SC/0374

Identifier Type: -

Identifier Source: org_study_id

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