Nerve Stimulator Versus Ultrasound-guided Interscalene Block for Shoulder Surgery

Cheju Halla General Hospital

Status: Completed

Conditions: Pain

Treatments: Procedure: US-guided interscalene block; Procedure: NS-guided interscalene block

Study type: Interventional

Funder types: Other

Identifiers

NCT02342873

inter2

Details and patient eligibility

About

The investigators compared the postoperative analgesia of nerve stimulator-guided and ultrasound-guided interscalene block after shoulder surgery.

Full description

Ultrasound (US)-guided peripheral nerve block has increased in popularity. It has many advantages such as improved success rate, faster onset time, fewer needle passes, shorter performance time, and reduced procedural pain and vascular puncture. However, there is no information about postoperative analgesia.

Therefore, the investigators tested whether nerve stimulator (NS) - guided interscalene block was inferior to ultrasound-guided block in terms of duration of postoperative analgesia for shoulder surgery.

Enrollment: 53 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• American Society of Anesthesiologists physical class I - III patients scheduled to undergo shoulder surgery

Exclusion criteria

• coagulopathy, severe pulmonary disease, neuropathy, contralateral diaphragmatic paresis, allergy to study medications

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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53 participants in 2 patient groups

NS-guided interscalene block

Active Comparator group

Description:

NS-guided interscalene block is performed using 20 ml of 0.75% ropivacaine.

Treatment:

Procedure: NS-guided interscalene block

US-guided interscalene block

Experimental group

Description:

US-guided interscalene block is performed using 20 ml of 0.75% ropivacaine.

Treatment:

Procedure: US-guided interscalene block