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Study of effective capacity and effective concentration of ropivacaine in abdominal surgery for quadratus lumborum block of the arcuate ligament

Study of effective capacity and effective concentration of ropivacaine in abdominal surgery for quadratus lumborum block of the arcuate ligament

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500106790
Enrollment
Unknown
Registered
2025-07-30
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-08-18

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

Conditions

None

Interventions

Quadratus lumborum block observation group:None

Sponsors

Miyi County People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1. Select patients who plan to undergo surgical abdominal surgery in Miyi County People's Hospital from August 2025 to July 2026; 2. Aged 18-75 years old; 3. Body Mass Index (BMI) between 18.5-30.0kg/m^2; 4. ASA grade I to III.

Exclusion criteria

Exclusion criteria: 1. Those with mental abnormalities, height less than 154cm and taller than 176cm; 2. Those who are allergic to local anesthetics; 3. History of chronic pain such as peripheral neuropathy and frozen shoulder, infection at the puncture site, abnormal coagulation function, and severe vital organ dysfunction; 4. Those who cannot cooperate with the completion of VAS scoring; 5. Those who have been using analgesics for a long time and cannot express pain correctly.

Design outcomes

Primary

MeasureTime frame
Half effective capacity;95% effective capacity;—

Countries

China

Contacts

Public ContactYang ling

People's Hospital of Miyi County

1971743806@qq.com+86 182 8123 9238

Outcome results

None listed

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