Shocking the nerve: can a stimulator make pain blocks better?

NCT ID NCT06566664

ENROLLING_BY_INVITATION Symptom relief Sponsor: Stanford University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jul 21, 2026 · Updated 2 times

Summary

This study tests whether adding a nerve stimulator to standard ultrasound guidance improves the quality of nerve blocks for upper limb surgery. 82 adults having elective arm surgery will be randomly assigned to receive the block with or without the stimulator active. Researchers will measure how quickly the block takes effect and how long it lasts.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: B Braun HNS 12 nerve stimulator
What this could lead to: If it works, this could show that using a nerve stimulator alongside ultrasound makes nerve blocks faster and more effective for pain control.
What could go wrong: This is a small, early-stage study at one center. The stimulator is already used for nerve localization, so the benefit may be small or not apply to all patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

agnosia somatoform disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PAIN MANAGEMENT PAIN SYNDROME

Contacts and locations

Locations

Stanford University Hospital

Stanford, California, 94305, United States

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