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Study on the changes of analgesia and maternal and infant stress response at different delivery times

Study on the changes of analgesia and maternal and infant stress response at different delivery times

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2000031725
Enrollment
Unknown
Registered
2020-04-08
Start date
2020-04-15
Completion date
Unknown
Last updated
2020-04-13

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

Conditions

labor pain

Interventions

0group:Analgesia at 0cm dilatation
R group:Analgesia at 1cm = dilatation <3cm
C group:No analgesia control group

Sponsors

Zunyi Maternal and Child Healthcare Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
22 Years to 34 Years

Inclusion criteria

Inclusion criteria: 1. Women aged 22-36 years; 2. Weight 52-88kg, ASA I or II, 3. Primipara with gestation >= 36 weeks and single head position; 4. Pregnant women with cervical dilatation of 1-3cm; 5. Pregnant women who can perform vaginal delivery (pelvic, head and basin evaluation) and require epidural delivery analgesia are evaluated by the obstetrician.

Exclusion criteria

Exclusion criteria: 1. Pregnant women with multiple pregnancies; 2. Pregnant women without head position pregnancy; 3. Pregnant women with severe pregnancy complications (placental abruption, placenta previa, gestational diabetes, preeclampsia); 4. Pregnant women with contraindications to intraspinal anesthesia or recent opioid treatment.

Design outcomes

Primary

MeasureTime frame
cortisol;endothelin;Nitric oxide;—

Secondary

MeasureTime frame
Delivery way;Labor time;Analgesic time;Local analgesic dose;VAS score;Apgar score;—

Countries

China

Contacts

Public ContactHuanhuan Ma

Zunyi Maternal and Child Healthcare Hospital

20145762@qq.com+86 13511805815

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026