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Butorphanol for Pain Relief After Cesarean Section: A Retrospective Study

The Application of Butorphanol in Postoperative Analgesia Management After Cesarean Section: A Retrospective Cohort Study

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07175363
Enrollment
2500
Registered
2025-09-16
Start date
2025-09-20
Completion date
2026-06-30
Last updated
2025-09-16

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

Conditions

Caesarean Section

Keywords

Caesarean section

Brief summary

This study explored the association between postoperative functional recovery and the formula of analgesic pumps as well as other related factors (such as age, intraoperative blood loss, operation duration, etc.) by retrospectively analyzing the clinical data of patients undergoing cesarean section in the main campus and branches of Sichuan Provincial People's Hospital from September 2024 to June 2025. The value of this study lies in: 1) providing a basis for optimizing the postoperative analgesia plan after cesarean section. 2) To provide references for the formulation of personalized analgesia strategies in clinical practice, improve the postoperative recovery quality of patients, promote the concept of enhanced recovery after surgery, and reduce the medical burden.

Interventions

DRUGAn postoperative analgesic pump was used

The drugs in the analgesic pump include butorphanol, hydromorphone, tramadol, and other medications.

Sponsors

Sichuan Provincial People's Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

1. Age 18-55 years 2. ASAI-III level 3. Scheduled or emergency cesarean section 4. Postoperative use of analgesic pump (formulation includes buprenorphine or tramadol or hydromorphone, etc.) 5. Complete electronic medical records

Exclusion criteria

1. Postoperative analgesia pump usage time is less than 24 hours 2. Missing key information such as follow-up status in medical records

Design outcomes

Primary

MeasureTime frameDescription
Pain Score2 days post-surgeryThe Visual Analog Scale (VAS) is primarily used, where 1 represents no pain (best outcome) and 10 represents the worst pain (worst outcome); other scales may be used if necessary.
Postoperative functional recovery status2 days post-surgeryPostoperative functional recovery status mainly includes: the time of first passage of gas, the time of first ambulation, the time of first catheter removal, and the recovery of limb muscle strength. The passage of gas, ambulation, and catheter removal times are self-reported by the patients, recording the days after surgery when the events occurred. The recovery of limb muscle strength is classified into six levels, ranging from 0 to 5, where 0 indicates no detectable muscle contraction (worst outcome) and 5 indicates normal muscle strength (best outcome).
Sedation score2 days post-surgeryThe sedation score uses a scale from -5 to +4, where -5 is defined as coma (one of the worst outcomes); -4 is defined as severe sedation (responds to physical stimulation); -3 is moderate sedation (no response to auditory stimulation); -2 is mild sedation (unable to maintain alertness for more than 10 seconds); -1 is drowsiness (not fully awake but can stay awake for more than 10 seconds); 0 is the awake natural state (best outcome); +1 is restlessness and anxiety (anxious and tense, but only slight body movement); +2 is agitation and anxiety (intense body movement); +3 is very agitated (trying to remove body tubes); +4 is aggressive (violent behavior) (one of the worst outcomes).

Secondary

MeasureTime frameDescription
Overall patient satisfaction rating2 days post-surgeryPatient overall satisfaction is self-reported, with a score range from 0 to 100, where 0 represents the least satisfied (worst outcome) and 100 represents the most satisfied (best outcome).
Nausea and vomiting2 days post-surgerySelf-reported by the patient, with '1' indicating occurrence (worst outcome) and '0' indicating non-occurrence (best outcome).
Adverse reactions2 days post-surgery

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026