Quadratus lumborum block with different volume of ropivacaine for perioperative analgesia in laparoscopic nephrectomy: a randomized double-blind trial

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR1900022817

Enrollment

Unknown

Registered

2019-04-27

Start date

2019-08-01

Completion date

Unknown

Last updated

2019-09-02

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

Conditions

quadratus lumborum block

Interventions

1:0.6%ropivacaine 20ml

2:0.4%ropivacaine 30ml

3:no

Eligibility

Sex/Gender

All

Age

40 Years to 80 Years

Inclusion criteria

Inclusion criteria: (1) aged 40-80 years, ASA I-II, BW 50-90kg; (2) scheduled for laparoscopic total or partial nephrectomy.

Exclusion criteria

Exclusion criteria: 1. allergic to ropivacaine; 2. coagulopathic abnormality; 3. infection in puncture site; 4. BMI>40kg/m2; 5. daily intake of opioids; 6. unable to communicate or comprehend pain numberial rating scale; 7. antipsychotic drug use recently; 8. alcohol and/or drug abuse; 9. already attended other clinical trials.

Design outcomes

Primary

Measure	Time frame
morphine consumption at postoperative different time points;	—

Secondary

Measure	Time frame
morphine demand at postoperative other predetermined timepoints;pain numberial rating scale at postoperative different timepoints;area under the curve of pain magnitude at 48h;heart rate and blood pressure at incision and 5min after incision;analgesic satisfaction;first flatus;first feces;postoperative hospital stay;major complications in 30d after surgery;nausea and vomiting;	—

Countries

China

Contacts

Public ContactLinlin Song

Peking University First Hospital

songlinlinlynkia@163.com+86 13501309217

Outcome results

None listed

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