Ultrasound Guidance in Nerve Block Anaesthesia

Study Overview
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Brief Summary
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Nerve block anaesthesia is wildly practised in France, avoiding general anaesthesia in a number of cases and producing excellent post-operative analgesia in trauma and orthopaedic surgeries. Even realised by experimented anaesthetists, 5-15% of failures and rare complications (such as vascular puncture, paresthesia, systemic local anaesthetic toxicity, epidural and spinal anaesthesia, neuropathy) are noticed. The aim of the study is the evaluation of an ultrasound-guidance technique in the four predetermined blocks and the incidence of their complications.

Official Title
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Ultrasound Guidance in Nerve Block Anaesthesia: Classic Nerve Stimulation Technique Versus Ultrasound-Neurostimulation Combination in Four Blocks: Interscalene, Humeral, Parasacral and Lumbar Blocks

Conditions
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Anesthesia

Intervention / Treatment
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* Procedure: ultrasound-guidance with echography


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients aged 18 years and greater, scheduled for one of these blocks: interscalene, humeral, parasacral or lumbar blocks, for trauma or orthopaedic surgeries, who have consented to the study and are with social insurance registration Exclusion Criteria: Block's contraindications, treatment by verapamil or flecainide

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: interscalene block<br>Locoregional anesthesia selection | Procedure: ultrasound-guidance with echography<br>* Locoregional anesthesia with or without ultrasound guidance practice<br>|
| Other: axillary block<br>Locoregional anesthesia selection | Procedure: ultrasound-guidance with echography<br>* Locoregional anesthesia with or without ultrasound guidance practice<br>|
| Other: lumbar block<br>Locoregional anesthesia selection | Procedure: ultrasound-guidance with echography<br>* Locoregional anesthesia with or without ultrasound guidance practice<br>|
| Other: parasacral plexus block<br>Locoregional anesthesia selection | Procedure: ultrasound-guidance with echography<br>* Locoregional anesthesia with or without ultrasound guidance practice<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sensory and motor block quality |  | 15, 30 and 60 min after the block is performed | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Complications |  | during the hospitalisation and by phone 1, 3, 6 and 9 months after the surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Nerve block anaesthesia, ultrasound-guidance