Ultrasound-guided Intermediate Cervical Plexus Block for Carotid Endarterectomies
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 29
- Locations
- 2
- Primary Endpoint
- Local Anesthetic Supplementation (Volume)
Study Overview
Brief Summary
The investigators test with the present study design, whether an ultrasound-guided blockade of the cervical plexus in combination with an additional application of local anesthetic to the superficial cervical ansa (facial nerve: cervical branch) leads to an improved quality of anesthesia.
Detailed Description
The innervation of the neck area is complex and includes cranial nerve (innervation of the vessel wall (IX,X) and of the neck muscles (VII,XI)), as well as the cervical plexus and brachial plexus. This is a major cause of insufficient anesthesia quality during carotid endarterectomies.
The investigators test with the present prospective study design, whether an ultrasound-guided blockade of the cervical plexus in combination with an additional application of local anesthetic to the superficial cervical ansa (facial nerve: cervical branch) leads to an improved quality of anesthesia.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •internal carotid stenosis: open surgical revascularization
- •age over 18 years
- •written informed consent
Exclusion Criteria
- •allergy (local anesthetics)
- •pregnancy
- •participation in other studies
- •drug addiction
- •non-cooperative patients
Arms & Interventions
with perivascular block
- ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%) 3. perivascular block (5ml prilocaine 1%)
Intervention: cervical plexus block (Other)
with perivascular block
- ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%) 3. perivascular block (5ml prilocaine 1%)
Intervention: facial nerve block (Other)
with perivascular block
- ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%) 3. perivascular block (5ml prilocaine 1%)
Intervention: perivascular block (Other)
without perivascular block
- ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%)
Intervention: cervical plexus block (Other)
without perivascular block
- ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%)
Intervention: facial nerve block (Other)
Outcomes
Primary Outcomes
Local Anesthetic Supplementation (Volume)
Time Frame: intraoperatively
volume of prilocaine 1% supplemented by the surgeon (ml)
Local Anesthetic Supplementation (Frequency)
Time Frame: intraoperatively
number of participants who need supplementation of prilocaine 1% by the surgeon (%)
Secondary Outcomes
- Cough(intraoperatively)
- Dysphagia(intraoperatively)
- Hoarseness(intraoperatively)
Investigators
Dr.med.Ronald Seidel
MD
Helios Research Center