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Comparison of modified ultrasound-assisted technique and conventional landmark technique for spinal needle placement during combined spinal-epidural anaesthesia: a prospective, multicenter, randomized controlled trial

Comparison of modified ultrasound-assisted technique based on positioning and conventional landmark technique for spinal needle placement during combined spinal-epidural anaesthesia: a prospective, multicenter, randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400091427
Enrollment
Unknown
Registered
2024-10-28
Start date
2024-10-28
Completion date
Unknown
Last updated
2024-11-04

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

Conditions

None listed

Interventions

Control group:landmark-guided
Ultrasound group:modified ultrasound-assisted technique

Sponsors

The First Affiliated Hospital,Sun Yat-sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1.aged at least 18 years; 2.scheduled to undergo lower abdominal, pelvic and lower extremity surgery under combined spinal-epidural anesthesia; 3.American Society of Anesthesiologists physical status I-III;

Exclusion criteria

Exclusion criteria: 1.with contraindications to neuraxial anesthesia, including coagulation abnormalities, puncture site infection, allergies to local anesthetics used, and unexplained neurological symptoms; 2.significant spinal deformity, trauma, and previous spinal surgery; 3.cognitive impairment, unable to cooperate; 4.fail to obtain informed consent;

Design outcomes

Primary

MeasureTime frame
First pass success rate;—

Secondary

MeasureTime frame
Number of passes;Number of attempts;Time for identifying landmarks;First-attempt success rate;Needling time;Overall success rate;Periprocedural pain score;Operator satisfaction;procedurerelated complications;—

Countries

China

Contacts

Public ContactFeng Xia

The First Affiliated Hospital,Sun Yat-sen University

fengxia@mail.sysu.edu.cn+86 20 87755766

Outcome results

None listed

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