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Anastomoses (Superficial Cervical Ansa) Between the Cervical Plexus and Peripheral Facial Nerve Branches: Implications for Regional Anesthesia in Carotid Endarterectomies – Anatomical Study
Author(s) -
R.D. Seidel,
Andreas Wree,
Marko Schulze
Publication year - 2021
Publication title -
local and regional anesthesia
Language(s) - English
Resource type - Journals
ISSN - 1178-7112
DOI - 10.2147/lra.s328987
Subject(s) - medicine , cervical plexus , anatomy , anastomosis , cadaver , cervical nerve , sternocleidomastoid muscle , plexus , fascia , facial nerve , common carotid artery , surgery , carotid arteries , nerve root
Sensory innervation in the carotid triangle involves the cervical plexus, cranial nerves, and the sympathetic trunk. This innervation also applies to skin incision, including various anatomical structures with potentially different innervation, such as the skin (dermatomes), the platysma (myotomes), and the superficial layer of the cervical fascia (fasciotomes), as well as retromandibular retractor insertion (co-innervation: V, VII). The aim of this anatomical study was to develop an injection technique for carotid endarterectomies to additionally block anastomoses between the transverse cervical nerve (TCN), the cervical branch VII (CB VII), and the marginal mandibular branch VII (MMB VII). These anastomoses are also termed superficial cervical ansa (SCA).

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