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Variations in carotid sinus anatomy and their relevance to carotid interventions
- Source :
- Folia Morphologica.
- Publication Year :
- 2015
- Publisher :
- VM Media SP. zo.o VM Group SK, 2015.
-
Abstract
- Background: The carotid sinus (CS) is a dilatation in the carotid bifurcation usually at the origin of proximal internal carotid artery (ICA). It contains baroreceptors which influence blood pressure. Variations in the location of the CS are of importance as atheromatous plaque commonly forms in this area and procedures such as carotid endarterectomy are performed to reduce the risk of stroke. Inadvertent stimulation of the CS baroreceptors during interventions can have profound effects on the patient’s haemodynamic status both intra- and postoperatively, causing serious complications. The aim of this study is to determine the inter- and intra-individual variations in the location of the CS. Materials and methods: Eighty-two carotid arteries were dissected bilaterally from 41 cadavers. The locations of the CS were noted and divided into four potential sites. Results: The commonest site is the origin of the ICA (74.3%), but the CS can also be found in the distal part of the common carotid artery (CCA) inferior to the bifurcation (17.1%); at the bifurcation involving the distal CCA and origins of both the external carotid artery (ECA) and ICA (7.32%); and at the origin of the ECA (1.22%). In individual cadavers, the CS was located at the origin of the ICA in 97.6% on at least one side. The sites of the CS were asymmetrical in 34.1%. Conclusions: Clinicians performing carotid interventions should be aware of these anatomical variations to avoid inadvertent stimulation of the CS which can cause profound bradycardia and hypotension.
- Subjects :
- Male
Bradycardia
medicine.medical_specialty
Histology
medicine.medical_treatment
External carotid artery
internal carotid artery
common carotid artery
Dissection (medical)
Carotid endarterectomy
medicine.artery
Internal medicine
medicine
Humans
cardiovascular diseases
Common carotid artery
Stroke
Aged
Aged, 80 and over
business.industry
Dissection
Anatomic Variation
Carotid sinus
medicine.disease
Carotid Sinus
medicine.anatomical_structure
cardiovascular system
Cardiology
external carotid artery
Female
Anatomy
medicine.symptom
Internal carotid artery
business
carotid endarterectomy
Subjects
Details
- ISSN :
- 16443284 and 00155659
- Database :
- OpenAIRE
- Journal :
- Folia Morphologica
- Accession number :
- edsair.doi.dedup.....08c4cc861665265d72a74e171291090e