Visibility - Classification of Sono-visibility of Anatomical Structures in Peripheral Nerve Blocks

Completed

• Conditions: Anesthesia; Anesthesia, Local

• Registration Number: NCT03231696
• Lead Sponsor: Charite University, Berlin, Germany

Brief Summary

We assessed the visibility of peripheral nerves while ultrasound guided blockades with a novel scoring system to evaluate differences in visibility of different nerves.

Detailed Description

We assessed the visibility of peripheral nerves while ultrasound guided blockades with a novel scoring system to evaluate differences in visibility of different nerves.

VIS(visibility) 1 easy identification and instant visualisation of all structures VIS 2 identification and visualisation of all structures after some corrections VIS 3 identification and visualisation of structures only unsure VIS 4 identification and visualisation of all structures impossible VIS 5 no structures seen. We amended a sub-project in which assessed the visibility in protective nerve stimulated nerve blocks in 46 patients.

Study Timeline

• Study Start: 2012-01
• Primary Completion: 2016-12
• Study Completion: 2016-12
• Study First Submitted: 2017-07-25
• Study First Submitted QC: 2017-07-25
• Study First Posted: 2017-07-27
• Status Verified: 2017-12
• Last Update Submitted: 2017-12-14
• Last Update Posted: 2017-12-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1200

Inclusion Criteria

Not provided

Exclusion Criteria

• contraindications for regional anesthesia

Inclusion Criteria (study sample as of amendment n=46):

• peripheral nerve block by ultrasound guidance
• age ≥ 18 years

Exclusion Criteria:

• contraindications for regional anesthesia (study sample n=46)
• using not the standard ultrasound machine
• performing not a standard regional anesthesia

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Visibility	During regional block (an average of 1 hour)	The ultrasound visibility of the nerve scored by a 5-step scale.

Secondary Outcome Measures

Name	Time	Method
Additional analgesia	During surgery (an average of 4 hours)	The need and amount of additional analgetic drugs while the intervention.

Trial Locations

Locations (1)

Department of Anesthesiology and Operative Intensive Care Medicine, CCM and CVK; 🇩🇪 Berlin, Germany