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.
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 Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
29
ultrasound-guided application of 20ml ropivacaine 0.75%
ultrasound-guided application of 5ml prilocaine 1%
ultrasound-guided application of 5ml prilocaine 1%
Helios Medical Center Schwerin, Department of Anaesthesiology and Intensive Care
Schwerin, Mecklenburg-Vorpommern, Germany
Local Anesthetic Supplementation (Frequency)
number of participants who need supplementation of prilocaine 1% by the surgeon (%)
Time frame: intraoperatively
Local Anesthetic Supplementation (Volume)
volume of prilocaine 1% supplemented by the surgeon (ml)
Time frame: intraoperatively
Hoarseness
number of participants who experienced side effects: hoarseness
Time frame: intraoperatively
Cough
number of participants who experienced side effects: cough
Time frame: intraoperatively
Dysphagia
number of participants who experienced side effects: dysphagia
Time frame: intraoperatively
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