Ultrasound-guided Intermediate Cervical Plexus Block

Helios Research Center

Status

Completed

Conditions

Internal Carotid Artery Stenosis

Treatments

Other: facial nerve block

Other: perivascular block

Other: cervical plexus block

Study type

Interventional

Funder types

Other

Identifiers

NCT02794974

A 2016-0027

Details and patient eligibility

About

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.

Full 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.

Enrollment

29 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

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

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

29 participants in 2 patient groups

with perivascular block

Experimental group

Description:

1. 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%)

Treatment:

Other: cervical plexus block

Other: perivascular block

Other: facial nerve block

without perivascular block

Experimental group

Description:

1. ultrasound-guided intermediate cervical plexus block (20ml ropivacaine 0.75%) 2. facial nerve block (cervical branch) (5ml prilocaine 1%)

Treatment:

Other: cervical plexus block

Other: facial nerve block

Trial documents