Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Characteristics, Complications and Perinatal Outcomes in Placenta Previa Women

7. juni 2021 oppdatert av: Maternal and Child Health Hospital of Foshan

Characteristics, Complications and Perinatal Outcomes in Placenta Previa Women: a Prospective, Matched Case-control Study

This study aim to investigate the characteristics, complications and perinatal outcomes in pregnant women with placenta previa.

Studieoversikt

Status

Rekruttering

Forhold

Detaljert beskrivelse

Placenta previa (PP) is defined as the placenta overlying the endocervical os and grades according to the relationship and the distance between the lower placental edge and the internal os of the uterine cervix: low-lying previa, marginal previa, partial previa, and complete previa.

Cesarean delivery and assisted reproductive technology are associated with an increased risk of placenta previa in subsequent pregnancies. Other risk factors for previa include previous spontaneous, elective pregnancy terminations, previous uterine surgery, increasing maternal age and maternal parity, multiple gestations, smoking, cocaine use, and prior previa.

It is associated with numerous adverse maternal and fetal-neonatal complications, such as perinatal hemorrhage, preterm birth, blood transfusion, hysterectomy, maternal intensive care unit admission, disseminated intravascular coagulation, septicemia, thrombophlebitis, and even fetal-neonatal and maternal death.

This is a 1:2 prospective, matched and hospital-based case-control study to investigate the characteristics, complications and perinatal outcomes in pregnant women with placenta previa. For each placenta previa women, the investigators selected two none-placenta previa pregnant women as control from the same department matched on the mode of delivery, using simple random selection when excess matches are available. The date of their admission is limited to two days.

This hospital is a tertiary university-affiliated medical center with a stable number of approximately 12,000 deliveries per year. Placenta previa is diagnosed by experienced ultrasonologists based on a transabdominal ultrasonic finding of placental tissue covering the internal cervical os before delivery, and further confirmed by obstetricians at delivery.

Studietype

Observasjonsmessig

Registrering (Forventet)

1500

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Kina
    • Guangdong
      • Foshan, Guangdong, Kina, 528000
        • Rekruttering
        • Maternal and Child Health Hospital of Foshan
        • Ta kontakt med:
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

12 år til 60 år (Barn, Voksen)

Tar imot friske frivillige

N/A

Kjønn som er kvalifisert for studier

Hunn

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Pregnant women is diagnosed with placenta previa after delivery and their matched pregnant women.

Beskrivelse

Inclusion Criteria:

  • Single Pregnancy
  • Informed consent
  • Fetal gestational age 28 to < 42 weeks

Exclusion Criteria:

  • Multiple pregnancy
  • Refuses to consent

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Placenta Previa
Pregnant women is diagnosed with placenta previa after delivery. Placenta previa is diagnosed by experienced ultrasonologists based on a transabdominal ultrasonic finding of placental tissue covering the internal cervical os before delivery, and further confirmed by obstetricians at delivery.
None-Placenta Previa
Pregnant women is diagnosed without placenta previa after delivery. Placenta previa is diagnosed by experienced ultrasonologists based on a transabdominal ultrasonic finding of placental tissue covering the internal cervical os before delivery, and further confirmed by obstetricians at delivery.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of Participants with postpartum hemorrhage
Tidsramme: 24 hours after delivery
Blood loss > 1000ml during cesarean section or > 500 ml during vaginal delivery
24 hours after delivery

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of Participants with antepartum hemorrhage
Tidsramme: From the time of viability of pregnancy to the delivery of the baby, assessed up to 42 weeks
At least one episode of bleeding from the genital tract during the antenatal period
From the time of viability of pregnancy to the delivery of the baby, assessed up to 42 weeks
Number of Participants with preterm birth
Tidsramme: From the time of viability of pregnancy to the delivery of the baby, assessed up to 37 weeks
Before 37 completed gestational weeks
From the time of viability of pregnancy to the delivery of the baby, assessed up to 37 weeks
Number of Participants with very preterm birth
Tidsramme: From the time of viability of pregnancy to the delivery of the baby, assessed up to 32 weeks
Before 32 completed gestational weeks
From the time of viability of pregnancy to the delivery of the baby, assessed up to 32 weeks
Number of participant needed for blood transfusion
Tidsramme: 72 hours after delivery
Calculation of the number of participant needed for blood transfusion
72 hours after delivery
Number of urological injury
Tidsramme: 72 hours after delivery
Calculation of the number of participant with bladder or ureteric injury
72 hours after delivery
Number of needed for extra surgical maneuvers
Tidsramme: 72 hours after delivery
internal iliac ligation or hysterectomy
72 hours after delivery
Number of need for caesarean hysterectomy
Tidsramme: 72 hours after delivery
Yes or no
72 hours after delivery
Number of needed for neonatal ICU
Tidsramme: 72 hours after delivery
Yes or no
72 hours after delivery
Number of needed for maternal ICU
Tidsramme: 72 hours after delivery
Yes or no
72 hours after delivery

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Maternal and Child Health Hospital of Foshan

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. januar 2019

Primær fullføring (Forventet)

31. desember 2021

Studiet fullført (Forventet)

30. juni 2022

Datoer for studieregistrering

Først innsendt

5. desember 2018

Først innsendt som oppfylte QC-kriteriene

11. desember 2018

Først lagt ut (Faktiske)

13. desember 2018

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. juni 2021

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. juni 2021

Sist bekreftet

1. juni 2021

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • MCHHFoshan-1901

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-delingstidsramme

Six months after completion of the study

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE
  • ICF
  • ANALYTIC_CODE
  • CSR

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere