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Oxytocin infusion for the prevention of uterine atony during caesarean delivery in elderly parturients with prior history of cesarean delivery: a dose-finding study

Oxytocin infusion for the prevention of uterine atony during caesarean delivery in elderly parturients with prior history of cesarean delivery: a dose-finding study

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2000038891
Enrollment
Unknown
Registered
2020-10-09
Start date
2020-10-12
Completion date
Unknown
Last updated
2021-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients undergoing elective cesarean section

Interventions

0IU/h oxytocin group:Oxytocin I.V. infusion
4IU/h oxytocin group:Oxytocin I.V. infusion
12IU/h oxytocin group:Oxytocin I.V. infusion
16IU/h oxytocin group:Oxytocin I.V. infusion
20IU/h oxytocin group:Oxytocin I.V. infusion

Sponsors

Jiaxing Maternity and Child Health Care Hospital (Women and Children Affiliated Hospital, Jiaxing University)
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
35 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. ASA I - II subjects, aged 35-50 years; 2. Singleton pregnancy; 3. The subject of scar uterus; 4. Patients undergoing elective cesarean section; 5. Subjects of abdominal transverse incision; 6. Patients with hemianesthesia; 7. Anesthesia plane T4-T6.

Exclusion criteria

Exclusion criteria: 1. Premature rupture of amniotic membrane in pregnant women entering the stage of labor; 2. Pregnant women with oxytocin allergy; 3. Patients with severe obstetric complications (gestational hypertension, preeclampsia); 4. Predicted high risk factors of postpartum hemorrhage (placental abnormalities, macrosomia, uterine fibroids, postpartum uterine inertia and history of hemorrhage), congenital and acquired coagulation dysfunction, thrombocytopenia (platelet count < 100 x 10 ^ 9).

Design outcomes

Primary

MeasureTime frame
Oxytocin effective dose in 50% of parturients (ED50) for adequate uterine tone;Oxytocin effective dose in 90% of parturients (ED90) for adequate uterine tone;Oxytocin dose;estimated blood loss;requirements for additional uterotonic agents;Maternal adverse effects;Uterine tone score;

Countries

China

Contacts

Public ContactChangna Wei

Jiaxing maternal and Child Health Hospital

544631360@qq.com+86 18267382732

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 8, 2026