Post-operative Analgesia Efficacy Using Ultrasound-guided Transmuscular Quadratus Lumborum Block Versus Ultrasound-guided Quadratus Lumborum Type II Block.

Tri-Service General Hospital

Status and phase: Unknown; Phase 4

Conditions: Nerve Block

Treatments: Device: Ultrasound; Drug: Bupivacaine

Study type: Interventional

Funder types: Other

Identifiers

NCT03100994

1-105-05-157

Details and patient eligibility

About

Post-operative analgesia efficacy using ultrasound-guided transmuscular quadratus lumborum block versus ultrasound-guided quadratus lumborum type II block

Full description

The Quadratus Lumborum (QL) Block is an ultrasound-guided technique described by Rafael Blanco in 2007. The nerves to the lower abdominal wall can be anesthetized by injecting local anesthetics between the quadratus lumborum muscle and latissimus dorsi muscle, which is called quadratus lumborum type II block. 〝 Transmuscular quadratus lumborum block demonstrates that injectate spreads over the posterior abdominal wall to the psoas major muscle and includes the upper branches of the lumbar plexus.〞described by Adhikary in 2016. However there are no published reports comparing the 2 techniques. In our study, compared of ultrasound-guided QL2-blocks with transmuscular quadratus lumborum block to investigate analgesic consumption, pain level, opioid related side effects and mobilization.

Enrollment: 180 estimated patients

Sex: All

Ages: 20 to 80 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• American Society of Anesthesiologists classification (ASA) 1~3
• adequate communication skills
• Body mass index < 32

Exclusion criteria

chronic pain neurological illness/ neuropathy contraindication against local anesthetics

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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180 participants in 3 patient groups

Group A

No Intervention group

Description:

without nerve block

Group B

Active Comparator group

Description:

Ultrasound guided transmuscular quadratus lumborum block with 0.125% bupivacaine 30ml

Treatment:

Drug: Bupivacaine

Device: Ultrasound

Group C

Active Comparator group

Description:

Ultrasound guided quadratus lumborum type 2 block with 0.125% bupivacaine 30ml

Treatment:

Drug: Bupivacaine

Device: Ultrasound