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

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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03231696

Acronym

Visibility

Enrollment

1200

Registered

2017-07-27

Start date

2012-01-31

Completion date

2016-12-31

Last updated

2017-12-15

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

Conditions

Anesthesia, Anesthesia, Local

Keywords

nerve block, peripheral nerve stimulation

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

(study sample N=1200): * peripheral nerve block by ultrasound guidance * age ≥ 18 years

Exclusion criteria

* contraindications for regional anesthesia Inclusion Criteria (study sample as of amendment n=46): * peripheral nerve block by ultrasound guidance * age ≥ 18 years

Design outcomes

Primary

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

Secondary

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

Countries

Germany

Outcome results