Quantitative Prediction of the Location of Carotid Bifurcation and Neurovascular Structures in the Carotid Region: A Cross-Sectional Cadaveric Study

Author:

Griepp Daniel W.12ORCID,Sajan Abin13,DiRaimo Robert1,Starikov Lev14ORCID,Márquez Samuel25ORCID

Affiliation:

1. Department of Surgery, SUNY Downstate Health Sciences University, Brooklyn, NY, USA

2. Department of Cell Biology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA

3. Department of Radiology, Columbia University Irving Medical Center, New York, NY, USA

4. BlueRock Therapeutics, New York, NY, USA

5. Department of Otolaryngology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA

Abstract

Introduction. The carotid region is encountered in vascular and neurological surgery and carries a potential for vascular and cranial nerve trauma. The carotid bifurcation is an especially important landmark and difficult to predict based on currently established landmarks. This study is a detailed analysis of the carotid region and proposes a novel methodology to predict the height of the bifurcation. Materials and Methods. Superficial and deep dissections were performed on the anterior triangle of the neck to expose the carotid region in twenty-one formalin-fixed donor cadavers. Musculoskeletal and neurovascular structures were assessed in relation to the carotid bifurcation and the medial border of the clavicle (MBC). Results. The carotid bifurcation occurred, on average, 11.4 mm higher on the left ( p < 0.001 ; 95% CI: 9.28, 13.54). The superior thyroid artery ( p < 0.001 ), facial vein ( p < 0.001 ), and cranial nerve XII ( p < 0.001 ) were all more distal on the left side when measured from the MBC while the angle of the mandible and stylohyoid muscle remained symmetric. Left- and right-sided vascular structures were symmetric when measured from the carotid bifurcation. Conclusions. Neurovascular structures within the carotid region are likely to be anatomically superior on the left side while vessels are likely to remain symmetric in relation to the carotid bifurcation. When measured from the MBC, the bifurcation height can be predicted by multiplying the distance between the MBC and mastoid process by 0.65 (right side) or 0.74 (left side). This novel methodological estimation may be easily learned and directly implemented in clinical practice.

Publisher

Hindawi Limited

Subject

Applied Mathematics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,Modeling and Simulation,General Medicine

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