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Ultrasound Prediction of Prolonged Labour

25. april 2016 opdateret af: Helse Stavanger HF

First Stage 3D-ultrasound During Prolonged Labour.

This observational study is designed to correlate findings on ultrasound with manual palpation, and to consider if delivery outcome can be predicted with help of ultrasound. Specifically, the study will evaluate the significance of fetal head level (descent) in the pelvis, measured with ultrasound.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

AIM:

To correlate findings on ultrasound with manual palpation, and to consider if delivery outcome can be predicted with help of ultrasound. Specifically evaluate the significance of fetal head level (descent) in the pelvis, measured with ultrasound.

Objective:

Labours have traditionally been evaluated by manuals methods of the "delivery helper" - midwives or doctor. There are many factors that will prolong labour such as malcontractions, disproportion of the birth canal and malpresentation/position. In about 20% of primigravidae, the first stage will last longer than 10 hours.

In this study we want to evaluate different ultrasounds measurements to see if ultrasound can be used to predict the outcome of labour.

Methods:

A descriptive observational study, with one ultrasound examination. The labour will be handled according to definitions by Woman's department, Stavanger University Hospital, and WHO.

The use of stimulating agents, as Oxytocin, will be evaluated after manual examinations, specific definitions and criteria.

The results of the ultrasound examinations will be evaluated after the delivery, since the results are not to be used clinically during the delivery.

Inclusion criteria will be primigravidae, with one fetus, after the 37th week. Feta head presentation. Ruptured membranes, at least one hour before inclusion. Prolonged first stage according to WHO definitions. The target is to include 100 subjects.

Inter- and intraobserver variation will be evaluated with intraclass coefficients. We will analyze operative delivery with normal vaginal delivery. Also, two groups divided by the stage 0 will be evaluated with statistics analyzes.

Time to delivery will be evaluated with Kaplan Meier and Cox regression analyzes.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

110

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Norge
      • Stavanger, Norge, NO-4011
        • Stavanger University Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Primi gravidae, with one fetus, after the 37th week. Cephalic presentation. Prolonged first stage according to WHO definitions.

Beskrivelse

Inclusion Criteria:

  • Primi gravidae
  • >37th week
  • Cephalic presentation
  • Prolonged first stage according to WHO definitions.

Exclusion Criteria:

  • Multiple pregnancies
  • Intrauterine fetal death

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Ultrasound examination
Women with prolonged Labour; Primi gravidae, single pregnancy, >37 weeks, fetus alive, cephalic presentation.
Andet: Ultrasound examination
Trans-abdominal and trans-perineal 3D ultrasound examination

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Area Under the Receiver Operating Curve (ROC AUC) Values for Prediction of Vaginal Delivery Using 2D or 3D Ulrasound
Tidsramme: during labor
Fetal Head descent was first measured as the shortest distance between the outer bony limit of the fetal skull and the Perineum. Fetal head descent was re-assessed by measuring the angle of progression in a mid-sagittal plane. Fetal head-perineum distance was evaluated with using a cut-off of ≤40 mm, while the angle of progression was evaluated using a cut off of ≥ 110 degrees. The ROC curves plotted the percentage sensitivity against the percentage false positive rate for head-perineum distance and angle of progression as measured by ultrasound.
during labor

Sekundære resultatmål

Resultatmål
Tidsramme
Percentage of Women With Delivery Within 6 Hours From Defined Prolonged Labor (in Accordance With WHO Recommendations)
Tidsramme: 6 hours post determination of prolonged labor
6 hours post determination of prolonged labor

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Helse Stavanger HF

Efterforskere

  • Ledende efterforsker: Erik Andreas Torkildsen, MD, Helse Stavanger HF
  • Studieleder: Torbjørn Moe Eggebø, MD, PhD, Helse Stavanger HF

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. november 2008

Primær færdiggørelse (Faktiske)

1. august 2010

Studieafslutning (Faktiske)

1. august 2010

Datoer for studieregistrering

Først indsendt

3. juni 2009

Først indsendt, der opfyldte QC-kriterier

4. juni 2009

Først opslået (Skøn)

5. juni 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

26. april 2016

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

25. april 2016

Sidst verificeret

1. april 2016

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • StaHF500804

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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