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The Effect of Prematurity and Hypertensive Disorders of Pregnancy on Offspring Cardiovascular Health (EPOCH)

23 maj 2016 uppdaterad av: University of Oxford
The purpose of this study is to investigate whether exposure to hypertensive disorders of pregnancy and/or a preterm birth results in alterations in the cardiovascular system during infancy.

Studieöversikt

Status

Okänd

Betingelser

Detaljerad beskrivning

While the incidence of cardiovascular disease has reduced dramatically, coinciding with favourable changes in risk factors, cardiovascular disease remains the single largest cause of mortality and premature mortality in the United Kingdom. Identification of novel biological pathways that underlie disease susceptibility raises the potential for new early primary prevention strategies to complement classical management. There is particular interest in the role of early environment in 'programming' risk of cardiovascular disease in later life and growing evidence that various early life exposures impact cardiovascular health in the longer term.

The investigators have therefore designed the EPOCH study to investigate whether those individuals born to hypertensive pregnancies and/or to a preterm birth demonstrate differences in the cardiovascular phenotype at birth, or whether they develop any differences over the first three months of life and whether this varies with other perinatal factors. This study also allows investigation of the short term impact of perinatal interventions used in this cohort. Comprehensive multi-modality non-invasive imaging measures of cardiovascular structure and function allow precise quantification of cardiovascular phenotype in this population.

Studietyp

Observationell

Inskrivning (Förväntat)

300

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Storbritannien
    • Oxfordshire
      • Oxford, Oxfordshire, Storbritannien, OX3 9DU
        • Rekrytering
        • Cardiovascular Clinical Research Facility, Dept of Cardiovascular Medicine, University of Oxford
        • Kontakt:
        • Huvudutredare:
          • Paul Leeson, PhD, FRCP

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

Inte äldre än 6 månader (Barn)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

Study population is drawn from infants admitted to or delivered in the OUH NHS Foundation trust to normotensive or hypertensive pregnancies across a range of gestations. The mothers of these infants form a secondary study cohort.

Beskrivning

Inclusion Criteria:

  • Available for assessment within the neonatal period,
  • Parent is willing and able to give informed consent for participation in the study,
  • Physical condition is suitable to allow non-invasive vascular testing,
  • Mother meets criteria for inclusion in the study and is willing to participate in the study. (Aged >/= 16 years and Is able and willing to give informed consent for participation in the study, and is able and willing to give informed consent for her infants participation in the study. )
  • Cases: Diagnosed during pregnancy with preeclampsia or gestational hypertension and/or delivered preterm (<37 weeks gestation)
  • Controls: No history of gestational hypertension or preeclampsia during this pregnancy and delivered at term (>37 weeks gestation)

Exclusion Criteria:

  • Parent is unwilling to give consent,
  • Unavailable for assessment of cardiovascular system,
  • Physical condition unsuitable to allow for non-invasive testing of cardiovascular system,
  • Evidence of congenital cardiovascular disease (with the exception of Persistent Patent Ductus Arterious (PDA) and Atrial Septal Defect (ASD)),
  • Cardiorespiratory instability at time of proposed measures,
  • Active infection at time of proposed study measures,
  • Mother of infant is excluded from the study. (Aged <16 years, unable or unwilling to consent to study or Physical condition post delivery such that it would preclude participation in the study)

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
Normotensive Term
Infants born at term (>37 weeks) to Normotensive pregnancies
Term Preeclampsia
Infants born at term (>37 weeks gestation) and exposed to a preeclamptic pregnancy
Preterm Normotensive
Infants born to Normotensive pregnancies at <37 weeks gestation
Preterm Hypertensive
Infants born to hypertensive pregnancies at <37 weeks completed gestation
Term Pregnancy-induced Hypertension
Infants born at term (>37 weeks gestation) and exposed to pregnancy-induced hypertension

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Systolic Cardiac Function
Tidsram: Birth and 3 months
Cardiac Function will be assessed by ECHO at birth and 3 months
Birth and 3 months

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Micro-vascular Structure
Tidsram: Birth and 3 months
Micro-vascular Structure will be assessed using Side Stream Dark Field (SDF) imaging device at birth and 3 months (as capillary density at baseline)
Birth and 3 months
Pulse wave velocity and pulse-wave analysis
Tidsram: Birth and 3 months
Birth and 3 months
Cardiac Structure
Tidsram: Birth and 3 months
Cardiac structure will be assessed by echocardiography at in utero, at birth and 3 months (as left and right ventricular mass)
Birth and 3 months
Cardiac diastolic function
Tidsram: Birth and 3 months
Cardiac Function will be assessed by ECHO at birth and 3 months
Birth and 3 months
Blood pressure
Tidsram: Birth and 3 months
Birth and 3 months
Heart rate variability
Tidsram: Birth and 3 months
Heart rate variability will be assessed by a 5 minute electrocardiogram
Birth and 3 months

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of Oxford

Samarbetspartners

British Heart Foundation

Utredare

  • Huvudutredare: Paul Leeson, PhD, FRCP, University of Oxford Department of Cardiovascular Medicine

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 augusti 2011

Primärt slutförande (Förväntat)

1 september 2017

Avslutad studie (Förväntat)

1 september 2017

Studieregistreringsdatum

Först inskickad

13 juni 2013

Först inskickad som uppfyllde QC-kriterierna

25 juni 2013

Första postat (Uppskatta)

28 juni 2013

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

25 maj 2016

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

23 maj 2016

Senast verifierad

1 maj 2016

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • EPOCH

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