Variations of the great arteries in the carotid triangle

2000 ◽  
Vol 122 (4) ◽  
pp. 590-591 ◽  
Author(s):  
Natalija Lučev ◽  
Dragica Bobinac ◽  
Ivana Marić ◽  
Ivan Drešćik

The variations of the common carotid artery, as well as of the external and internal carotid arteries, are described. During anatomic dissection on adult cadavers, we investigated the variability of appearance of 40 carotid arterial systems. Special consideration was given to the topographic relations such as the level of the bifurcation of the common carotid artery, the relationship between the external and internal carotid arteries, and the origin of the great collateral branches. Special attention was paid to the origin of the superior thyroid artery. In this article the practical importance of these variations is stressed.

2021 ◽  
pp. 10-16
Author(s):  
Leonid Kossovich ◽  
Irina Kirillova

A case of non-penetrating neck injury with contusion and dissection of the common carotid artery with transition to the internal carotid artery is presented in a clinical observation. The clinical picture of the development of brain failure after thrombosis of the common and internal carotid arteries and regression of brain symptoms after reconstructive surgery is presented. A mathematical model of the lesion mechanism is analyzed separately. It is concluded that in case of a nonpenetrating wound of the neck with a traumatic weapon, the revision of the underlying tissues should be mandatory.


2016 ◽  
Vol 15 (3) ◽  
pp. 50-56
Author(s):  
V. V. Genkel ◽  
A. O. Salachenko ◽  
O. A. Alekseeva ◽  
I. I. Shaposhnik

Introduction and purpose. Endothelial cells are subjected to biomechanical stress produced by the bloodstream and tunica media of the vessel. Vascular stiffness and endothelial shear stress have cooperative effects on the endothelial structure and function. However, the relationship of shear stress and arterial stiffness is still poorly understood. The purpose of the study was to assess the relationship of endothelial shear rate and both local and regional vascular stiffness in patients at different stages of the development of atherosclerosis. Methods. The study included 60 patients, 33 men and 27 women. The average age of patients was 54.8±11.7 years. Regional arterial stiffness was assessed by measurement of the pulse wave velocity in the arteries of elastic and muscular types. Local stiffness of the carotid arteries was characterized by Peterson elastic modulus, Young's modulus, stiffness index β, the deformation of the common carotid artery. Endothelial shear rate was measured at the site of the common carotid artery. Results. Average values of carotid endothelial shear rate were equal to 433±127 s-1. Reduced endothelial shear rate in the carotid arteries was associated with an increased Peterson modulus (r = -0.289; p = 0.025) and the stiffness index β (r = -0.280; p = 0.037), and moreover - with decreasing vascular distensibility (r = 0.288; p = 0.026) and deformation (r = 0.296; p = 0.024). Assessment of the relationship between endothelial shear rate and regional vascular stiffness showed weak statistically significant negative correlation of shear rate and PWVcf (r = -0.367; p = 0.014). Conclusion. In study subjects endothelial shear rate reduction in the area of the common carotid artery was associated with an increased Peterson modulus, stiffness index β, decreasing deformation of carotid arteries and increase in aortic stiffness.


2021 ◽  
Vol 8 (9) ◽  
pp. 1274
Author(s):  
Magaji G. Ojaare ◽  
Terkimbi I. Annongu ◽  
Chia D. Msuega ◽  
Hameed O. Mohammad ◽  
Abubakar Farati ◽  
...  

Background: Carotid artery dimensions are increasingly used for detecting early atherosclerosis and predicting clinical complications. Aim was to explore relationships between gender, age and body mass index (BMI) and the diameters of the common carotid artery (CCA) and internal carotid artery (ICA) using ultrasonography.Methods: This was a cross-sectional study carried out at the University of Maiduguri Teaching Hospital between February-October, 2011. The 400 adult males and females above 18 years underwent carotid artery ultrasonography for measurement of the IMT of the common and internal carotid arteries. The influence of age, sex, weight, height, and the basal metabolic index (BMI) was investigated.Results: There were 239 (59.80%) males and 161 (40.20%) females aged between 18 to 81 years (Mean±SD, 36.74±14.79 years). The mean±SD diameters for right common carotid artery (RCCA) and left common carotid artery (LCCA) were 6.39±0.71mm and 6.28±0.74mm respectively. The right internal carotid artery (RICA) and left internal carotid artery (LICA) had mean±SD diameters of 4.63±0.63 mm and 4.61±0.63 mm respectively. The luminal diameters of the carotid arteries increased significantly with age and increased BMI. The luminal diameters of the CCA and ICA were significantly smaller in women than in men.Conclusions: Common carotid and internal carotid artery luminal diameter tends to be larger in men than women among adults and increases with age and BMI. There is no difference in the luminal diameter between the left and right carotid artery. 


2005 ◽  
Vol 38 (02) ◽  
pp. 170-171
Author(s):  
S B Rao ◽  
V R Vollala ◽  
M Rao ◽  
V P Samuel ◽  
D Deepthinath ◽  
...  

AbstractThe arterial pattern of the human body is one of the systems that show a large number of variations. Many reports are available regarding variations of common carotid, external and internal carotid arteries and branches of external carotid artery. We describe a very rare case of lateral position of external carotid artery. The external carotid artery was lateral to the internal carotid artery at the bifurcation of the common carotid artery. The clinical importance of this variation is discussed.


1995 ◽  
Vol 109 (9) ◽  
pp. 889-891 ◽  
Author(s):  
Saichiro Tanaka ◽  
Yasuyuki Kimura ◽  
Mitsuru Furukawa

AbstractPseudoaneurysms of the extracranial carotid arteries are rarely seen following irradiation for cancers of the head and neck. We present a patient with a pseudoaneurysm of the common carotid artery following a radical neck dissection and irradiation for thyroid carcinoma 20 years earlier. Following oesophagoscopical examination, a pseudoaneurysm of the right common carotid artery ruptured into the piriform sinus. The common carotid artery was embolized with multiple coils and the bleeding was halted. The relationship between the carotid artery aneurysm and irradiation, and the treatment of carotid artery aneurysm, is discussed.


2017 ◽  
Vol 31 (3) ◽  
pp. 305-308 ◽  
Author(s):  
Akira Uchino ◽  
Kazuhiko Uwabe ◽  
Iichiro Osawa

Rarely, the external and internal carotid arteries arise separately from the brachiocephalic trunk and right subclavian artery (SA) or the aortic arch and reflect the absence of a common carotid artery (CCA). We report a 45-year-old man with absent right CCA associated with aberrant right SA, an extremely rare combination, diagnosed by computed tomography (CT) angiography during follow-up for postoperative aortic dissection. Retrospective careful observation of preoperative postcontrast CT revealed the absent right CCA. Previously reported arch variations associated with absent CCA include cervical aortic arch, double aortic arch, and right aortic arch.


2005 ◽  
Vol 289 (5) ◽  
pp. H2244-H2250 ◽  
Author(s):  
Masuo Ohashi ◽  
Frank Faraci ◽  
Donald Heistad

The goal of this study was to determine the effects of peroxynitrite (ONOO−) on smooth muscle membrane potential and vasomotor function in rabbit carotid arteries. ONOO− is known to affect vascular tone by several mechanisms, including effects on K+ channels. Xanthine (X, 0.1 mM), xanthine oxidase (XO, 0.01 U/ml), and a low concentration of sodium nitroprusside (SNP, 10 nM) were used to generate ONOO−. In the common carotid artery, X and XO (X/XO) in the presence of SNP tended to increase tension. In contrast, in the internal carotid artery, X/XO in the presence of SNP transiently hyperpolarized the membrane (−8.5 ± 1.8 mV, mean ± SE) and decreased tension (by 85 ± 5.6%). In internal carotid arteries, in the absence of SNP, X/XO did not hyperpolarize the membrane and produced much less relaxation (by 23 ± 5.6%) than X/XO and SNP. Ebselen (50 μM) inhibited both hyperpolarization and relaxation to X/XO and SNP, and uric acid (100 μM) inhibited relaxation. Glibenclamide (1 μM) abolished hyperpolarization and inhibited relaxation during X/XO and SNP. Charybdotoxin (100 nM) or tetraethylammonium (1 mM) did not affect hyperpolarization or relaxation, respectively. These results suggest that ONOO− hyperpolarizes and relaxes smooth muscle in rabbit internal carotid artery but not in common carotid artery through activation of KATP channels.


Author(s):  
Costică Toader COVAȘĂ ◽  
Alexandru MUNTEANU

The purpose of these investigations was to describe the distribution particularities of the common carotid artery in domestic rabbit in correlation with the data in the field. Researches were performed on 6 domestic rabbits, 4 males and 2 female, aged 1-3 years. The common carotid artery was injected with gelatine suspension coloured with Chinese India ink, followed by its dissection. The occipital and internal carotid arteries are detached together in four cases, or separately in the rest of them, from the dorso-medial part of the common carotid artery. Facial and lingual arteries are detached separately, not together, both of which having a large diameter. The superficial temporal trunk which is very developed and long has a sinuous traject between parotid gland acini where it forms two loops. Nearby its origin, the transverse artery of the face has a curved path due to propulsion and retropulsion movements of the temporo-mandibular joint.


2009 ◽  
Vol 123 (12) ◽  
pp. 1331-1337 ◽  
Author(s):  
H G Hatipoglu ◽  
M A Cetin ◽  
A Selvi ◽  
E Yuksel

AbstractObjective:This study aimed to determine whether magnetic resonance imaging has a role in the evaluation of the sphenoid sinus and internal carotid artery. In addition, we aimed to establish reference measurements for the minimal distance between the internal carotid arteries.Method:The sphenoid sinuses and neighbouring internal carotid arteries of 90 patients were evaluated using sagittal T1-weighted and axial and coronal T2-weighted magnetic resonance images.Results:Sphenoid sinus pneumatisation was categorised as occipitosphenoidal (0 per cent), conchal (3.3 per cent), presellar (14.4 per cent) or sellar (82.2 per cent). The internal carotid artery protruded into the sphenoid sinus in 32.8 per cent, with a septum in 9.4 per cent. The incidence of sellar-type sphenoid sinus pneumatisation was higher in patients with protrusion of the internal carotid artery into the sphenoid sinus (p < 0.001). The incidence of presellar pneumatisation was higher in patients without internal carotid artery protrusion (p < 0.001). The minimal distance between the internal carotid arteries varied between 9.04 and 24.26 mm (mean, 15.94 mm).Conclusion:Magnetic resonance imaging can provide useful information about the sphenoid sinus and internal carotid artery, prior to endoscopic sphenoidotomy and trans-sphenoidal hypophysectomy.


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