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Validation of respiratory variation index to indicate labor pain intensity during uterus contraction: a prospective, observational study

Validation of respiratory variation index to indicate labor pain intensity in latent phase: a prospective, double-blind, observational study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500106234
Enrollment
Unknown
Registered
2025-07-21
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-12-01

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

Conditions

labor pain

Interventions

NRS3 group:None

Sponsors

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. Maternal age 20-40 years 2. ASA physical status II 3. Singleton cephalic pregnancies at 37-42 weeks' gestation and requesting vaginal delivery 4. Cervical dilation within 2-5 cm, requesting epidural labor analgesia.

Exclusion criteria

Exclusion criteria: 1. Contraindications to neuraxial anesthesia 1) Coagulopathy (INR >1.4 or platelet count 36 kg/m²) 4. History of substance abuse 5. Patient refusal

Design outcomes

Primary

MeasureTime frame
respiratory rate variability;respiratory amplitude variability;SPI;heart rate;—

Secondary

MeasureTime frame
analgesia level;times of uterus contraction;—

Countries

China

Contacts

Public ContactTao Xu

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University

towerxutao@163.com+86 189 1809 8660

Outcome results

None listed

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