- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT03774667
Characteristics, Complications and Perinatal Outcomes in Placenta Previa Women
Characteristics, Complications and Perinatal Outcomes in Placenta Previa Women: a Prospective, Matched Case-control Study
Aperçu de l'étude
Statut
Les conditions
Description détaillée
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.
Type d'étude
Inscription (Anticipé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Zhengping Liu, MD
- Numéro de téléphone: 86 757 82969772
- E-mail: liuzphlk81@outlook.com
Sauvegarde des contacts de l'étude
- Nom: Dazhi Fan, MD
- Numéro de téléphone: 86 757 82969772
- E-mail: fandazhigw@163.com
Lieux d'étude
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Guangdong
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Foshan, Guangdong, Chine, 528000
- Recrutement
- Maternal and Child Health Hospital of Foshan
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Contact:
- Zhengping Liu, MD
- Numéro de téléphone: 86 757 82969772
- E-mail: liuzphlk81@outlook.com
-
Contact:
- Dazhi Fan, MD
- Numéro de téléphone: 86 757 82969772
- E-mail: fandazhigw@163.com
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Single Pregnancy
- Informed consent
- Fetal gestational age 28 to < 42 weeks
Exclusion Criteria:
- Multiple pregnancy
- Refuses to consent
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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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.
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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.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Number of Participants with postpartum hemorrhage
Délai: 24 hours after delivery
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Blood loss > 1000ml during cesarean section or > 500 ml during vaginal delivery
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24 hours after delivery
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Number of Participants with antepartum hemorrhage
Délai: From the time of viability of pregnancy to the delivery of the baby, assessed up to 42 weeks
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At least one episode of bleeding from the genital tract during the antenatal period
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From the time of viability of pregnancy to the delivery of the baby, assessed up to 42 weeks
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|
Number of Participants with preterm birth
Délai: From the time of viability of pregnancy to the delivery of the baby, assessed up to 37 weeks
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Before 37 completed gestational weeks
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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
Délai: From the time of viability of pregnancy to the delivery of the baby, assessed up to 32 weeks
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Before 32 completed gestational weeks
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From the time of viability of pregnancy to the delivery of the baby, assessed up to 32 weeks
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Number of participant needed for blood transfusion
Délai: 72 hours after delivery
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Calculation of the number of participant needed for blood transfusion
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72 hours after delivery
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Number of urological injury
Délai: 72 hours after delivery
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Calculation of the number of participant with bladder or ureteric injury
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72 hours after delivery
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Number of needed for extra surgical maneuvers
Délai: 72 hours after delivery
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internal iliac ligation or hysterectomy
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72 hours after delivery
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Number of need for caesarean hysterectomy
Délai: 72 hours after delivery
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Yes or no
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72 hours after delivery
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Number of needed for neonatal ICU
Délai: 72 hours after delivery
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Yes or no
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72 hours after delivery
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Number of needed for maternal ICU
Délai: 72 hours after delivery
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Yes or no
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72 hours after delivery
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Collaborateurs et enquêteurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- MCHHFoshan-1901
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Délai de partage IPD
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
- SÈVE
- CIF
- ANALYTIC_CODE
- RSE
Informations sur les médicaments et les dispositifs, documents d'étude
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