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Delayed Umbilical Cord Clamping - C-section Pilot

24. maj 2017 opdateret af: University of California, Davis

Delayed Umbilical Cord Clamping For Term Infants: A Pilot Safety Trial During Cesarean Deliveries

This is a pilot study of delayed cord clamping (DCC) at progressively longer intervals (90 to 120 seconds) during elective cesarean deliveries of term infants. The investigators hypothesize that the pilot trial of DCC in cesarean sections will demonstrate safety of this procedure for mothers and babies.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

Despite expert recommendations to delay clamping the cord for at least 2 minutes, early cord clamping remains a common obstetrical practice. The World Health Organization has noted that data on cesarean deliveries are more limited, particularly with respect to long-term effects in infants. Recently, the American College of Obstetrics and Gynecology also noted in a committee statement that " the ideal time for clamping of the umbilical cord in cesarean section vs. vaginal birth is a particularly important area for future research".

The objective of this study is to conduct a pilot trial of delayed cord clamping during cesarean deliveries to determine if progressively longer intervals of cord clamping are feasible and not related to poorer maternal and neonatal outcomes as compared to outcomes from historical controls. We will offer study entry for women planning elective cesarean delivery to collect prospective data on progressively longer intervals, analyzing outcomes for each time interval to ensure they are clinically acceptable, prior to extending the interval another 30 s. We anticipate approximately 20 women at each interval (90 and 120 sec) and will perform hemoglobin analysis on the infants specifically for this study. If intraoperative blood loss is clinically deemed excessive, or mother or baby are unstable, the cord will be clamped.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

41

Kontakter og lokationer

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

Studiesteder

    • California
      • Sacramento, California, Forenede Stater, 95817
        • University of California Davis Medical Center

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

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

pregnant women 18 years of age or older that plan on having an elective Cesarean delivery of a term singleton infant.

Beskrivelse

Inclusion Criteria:Subjects that are pregnant (women 18 years of age and older) and scheduled for an elective C-section at ≥ 37 weeks gestation will be eligible for the study.

Exclusion Criteria:

Pregnant women that do not plan on having a C-section and individuals that are not pregnant. Pregnant women that are medically unstable, have poorly controlled diabetes mellitus, multiple gestations, anomalous fetuses and/or severe intrauterine growth retardation will be excluded. Adults unable to consent will not be included

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
90 seconds DCC
the initial 15-20 subjects (15 enrolled subjects who complete study) will have cord clamped at 90 seconds. Then data will be analyzed and evaluated by DSMB
Two minutes DCC
If Data Safety Monitoring Board (DSMB) concurs, DCC will then be practiced for 2 minutes for second group, which is the minimum amount of time recommended to be defined as DCC.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
maternal estimated blood loss (EBL)
Tidsramme: at delivery (approximately 1 hour duration)

Excessive EBL will be assessed by three measures

  1. clinical assessment by anesthesia/obstetrics after surgery noting amount of blood suctioned and on drapes, to include weighing of drapes at > 800 mL
  2. difference between pre- and post-op hemoglobin levels of > 20% more than that in baseline data
  3. need for transfusion,
at delivery (approximately 1 hour duration)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
neonatal hypothermia
Tidsramme: at admission (within 30 minutes of birth)
moderate or severe neonatal hypothermia (36.2 rectal or less)
at admission (within 30 minutes of birth)
newborn hemoglobin concentration and hematocrit
Tidsramme: first day of life (0-24 h of age)
mean hemoglobin concentration and incidence of polycythemia (hct >65 with symptoms, 70 without symptoms) and anemia (hgb <14.5 g/dL)
first day of life (0-24 h of age)

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
phototherapy
Tidsramme: < 14 days of age
phototherapy for hyperbilirubinemia without evidence hemolysis during birth hospitalization or readmission during first 14 d of life
< 14 days of age
Neonatal intensive care (NICU) 'observation' or admission
Tidsramme: birth hospitalization (first 72 h of age approximately)
NICU 'observation' during transition or admission will be measured and reason for admission. respiratory symptoms are most of interest, but historical controls will only have data yes/no so we will look at overall nicu admissions also.
birth hospitalization (first 72 h of age approximately)

Samarbejdspartnere og efterforskere

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

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.

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. oktober 2013

Primær færdiggørelse (Faktiske)

1. oktober 2014

Studieafslutning (Faktiske)

1. november 2014

Datoer for studieregistrering

Først indsendt

22. juli 2014

Først indsendt, der opfyldte QC-kriterier

27. august 2014

Først opslået (Skøn)

1. september 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

30. maj 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. maj 2017

Sidst verificeret

1. februar 2016

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 400656-4

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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 .

Kliniske forsøg med Cesarean Sections

Abonner