NCT05001802

Comparison of Two Techniques of Quadratus Lumborum Block

Transverse Versus Longitudinal Technique of Ultrasound-Guided Transmuscular Quadratus Lumborum Block:A Randomized Controlled Study Comparing Dermatomal Spread

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Peking Union Medical College Hospital · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Our objective is to investigate the extent of cranial dermatomal spread of transmuscular quadratus lumborum block(TMQLB )when equal dosage(ml/kg) of local anesthetic are injected with the transverse versus an modified paramedian sagittal approach for patients undergoing laparoscopic adrenalectomy.

Detailed description

The paramedian sagittal oblique transmuscular quadratus lumborum block(TMQLB )approach has been introduced to facilitate cranial spread by injecting the local in a caudal to cranial direction compared with the transverse approach. Currently, there are no data comparing the two techniques mentioned above with regards to extent of spread level. Our objective is to investigate the extent of cranial dermatomal spread of TMQLB when equal dosage(ml/kg) of local anesthetic are injected with the transverse versus an modified paramedian sagittal approach for patients undergoing laparoscopic adrenalectomy. In addition, the investigators wish to compare the performance time, caudal dermatomal spread of TMQLB and postoperative analgesia effect.

Conditions

• Nerve Block

Interventions

Type	Name	Description
PROCEDURE	transverse scan, in-plane, posterior- anterior quadratus lumborum block	transverse scan, in-plane, posterior- anterior quadratus lumborum block The patients will receive the transmuscular quadratus lumborum block before surgery using the transverse scan, in-plain, posterior to anterior approach. 0.6ml/kg 0.375% ropivacaine is injected when the correct needle location is confirmed.
PROCEDURE	paramedian sagittal longitudinal scan, in-plane, caudal-cranial quadratus lumborum block	The patients will receive the transmuscular quadratus lumborum block before surgery using the paramedic sagittal longitudinal scan, in-plain, caudal-cephalic approach.0.6ml/kg 0.375% ropivacaine is injected when the correct needle location is confirmed.

Timeline

• Start date: 2021-08-20
• Primary completion: 2021-11-16
• Completion: 2021-12-01
• First posted: 2021-08-12
• Last updated: 2021-11-17

Locations

2 sites across 1 country: China