The effect of perioperative circadian rhythm changes on analgesia after cesarean section

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2100050803

Enrollment

Unknown

Registered

2021-09-04

Start date

2021-09-10

Completion date

Unknown

Last updated

2022-05-09

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

Conditions

Pain after cesarean section

Interventions

Cesarean section delivery group:No

Eligibility

Sex/Gender

Female

Age

19 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1. Parturient aged 18-45 years, and the body mass index (BMI) is 18.5-30; 2. The ASA classification is I-II grade; 3. The perioperative parturient who needs cesarean section.

Exclusion criteria

Exclusion criteria: 1. Patients with a history of abdominal surgery; 2. Patients with preoperative chronic pain and neurological diseases; 3. Patients with history of insomnia or preoperative sedative drugs; 4. Patients with mental illness; 5. Patients who abuse opioid analgesia drug patients; 6. Patients undergoing anesthesia other than intraspinal anesthesia.

Design outcomes

Primary

Measure	Time frame
Morningness-Eveningness Questionnaire Self-Assessment (MEQ-SA) score;Nocturnal sleep interruptions;Acute postoperative pain score;Postoperative chronic pain score;	—

Countries

China

Contacts

Public ContactChen Shengjie

Shunde Women and Children Hospital of Guangdong Medical University

271988174@qq.com+86 13790093838

Outcome results

None listed

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