Midline vs. Paramedian Approaches for US-assisted Spinal Anesthesia

Seoul National University

Status: Completed

Conditions: Ultrasonography; Anesthesia, Spinal

Treatments: Procedure: ultrasound-assisted paramedian approach; Procedure: ultrasound-assisted midline approach

Study type: Interventional

Funder types: Other

Identifiers

NCT03491943

H-1803-060-928

Details and patient eligibility

About

Ultrasound has emerged as an useful tool for neuraxial blockade. The aim of this study is to compare the efficacy and safety between the midline approach and paramedian approach for ultrasound-assisted spinal anesthesia in adult patients.

Enrollment: 112 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adult patients scheduled to undergoing elective orthopedic surgery under spinal anesthesia, with ASA physical status classification I, II, III

Exclusion criteria

• Patients with contraindication to spinal anesthesia (coagulopathy, local infection, allergy to local anesthetic)
• Patients with morbid cardiac diseases
• Pregnancy
• Patients with previous history of lumbar spinal surgery
• Patients with anatomical abnormality of lumbar spine

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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112 participants in 2 patient groups

Midline group

Experimental group

Description:

Preprocedural ultrasound-assisted midline approach of spinal anesthesia will be performed. 0.5% heavy bupivacaine will be injected to intrathecal space for spinal anesthesia.

Treatment:

Procedure: ultrasound-assisted midline approach

Paramedian group

Active Comparator group

Description:

Preprocedural ultrasound-assisted paramedian approach of spinal anesthesia will be performed. 0.5% heavy bupivacaine will be injected to intrathecal space for spinal anesthesia.

Treatment:

Procedure: ultrasound-assisted paramedian approach