A Comparison of Post-operative Analgesic Efficacy of Ultrasound-Guided Erector Spinae Plane Block vs Transmuscular Quadratus Lumborum Block in Cesarean Section: A Randomized controlled trial

Status

Active, not recruiting

Phases

Phase 2Phase 3

Study type

Interventional

Source

TCTR

Registry ID

TCTR20210217003

Enrollment

Registered

2021-02-17

Start date

2021-02-22

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Postoperative pain after US-guided ESP block versus US-guided QL block in patients undergoing to cesarean section under spinal anesthesia Postsurgical pain Nerve block Cesarean section

Interventions

Ultrasound-guided erector spinae plane block at T9 level,Ultrasound-guided transmuscular quadratus lumborum block at L2 level

Experimental Procedure/Surgery,Experimental Procedure/Surgery

Erector spinae plane block,Transmuscular quadratus lumborum block

Eligibility

Sex/Gender

Female

Age

18 Years to 40 Years

Inclusion criteria

Inclusion criteria: Singleton pregnancy Elective cesarean delivery

Exclusion criteria

Exclusion criteria: BMI > 32 kg/m2 Allergy to any study drugs Inability to communicate

Design outcomes

Primary

Measure	Time frame
Cumulative morphine consumption at 2, 4, 8, 12, and 24 hours after surgery mg	—

Secondary

Measure	Time frame
Numeric rating scale at 2, 4, 8, 12, 24 hours after surgery 11-point pain intensity scale at rest and with movement,Sensory block level within 6 hours after surgery Test for area of decreased cold/pinprick sensation by dermatomes,Time to first opioid within 48 hours after surgery Time (minutes) that a patient receives first intravenous morphine,Time to ambulation within 48 hours after surgery Time (hours) that a patient starts ambulation,Length of hospital stay within 5 days after surgery Time (hours) that a patient is discharged,Postoperative side effects within 48 hours after surgery Number (%) of patients having lower extremities weakness, urinary retention, nausea/vomiting, hematoma at block site	—

Measure

Time frame

Numeric rating scale at 2, 4, 8, 12, 24 hours after surgery 11-point pain intensity scale at rest and with movement,Sensory block level within 6 hours after surgery Test for area of decreased cold/pinprick sensation by dermatomes,Time to first opioid within 48 hours after surgery Time (minutes) that a patient receives first intravenous morphine,Time to ambulation within 48 hours after surgery Time (hours) that a patient starts ambulation,Length of hospital stay within 5 days after surgery Time (hours) that a patient is discharged,Postoperative side effects within 48 hours after surgery Number (%) of patients having lower extremities weakness, urinary retention, nausea/vomiting, hematoma at block site

—

Countries

Thailand

Contacts

Public ContactPrangmalee Leurcharusmee

Faculty of Medicine, Chiang Mai University

prangmalee.l@cmu.ac.th6653935522

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026