Abstract
Purpose and background
Previous studies have identified variations regarding the morphology and location of the carotid sinus, a phenomenon still not commonly approached or studied on computed tomography angiography (CTA). Detailed characterization of the carotid sinus was performed on CTAs, determining its position, diameter and length.
Methods
The study group included 43 patients with disease-free carotid trunks subjected to cervical CTA. We measured the terminal caliber of the common carotid artery (CCA), as well as the calibers of the internal (ICA) and external carotid arteries (ECA) at their origin. The diameters were correlated with the location and the shape of the carotid sinus. We also measured the length of the sinus dilatation (carotid bulb), in regard to its location on the terminal branches of the common carotid artery.
Results
Mean diameters of the studied arteries were 7.39 ± 1.04 mm for the CCA, 6.71 ± 1.49 mm for the ICA and, respectively, 4.27 ± 0.75 mm for the ECA. The classical position of the carotid sinus was seen in 80% of cases, the rest being considered anatomical variants. The length of the carotid bulb on the ICA was 9.99 ± 2.22 mm, showing variability between genders.
Conclusions
The carotid sinus does not always extend to the ICA, presenting different distribution patterns that might be relevant in sinus pathology from a clinical point of view, respectively from a surgical point of view during invasive or minimally invasive interventions on the carotid axis.
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Availability of data and materials
The data presented in this study are available on reasonable request from the corresponding author.
References
Ameenuddin M, Anand M (2019) CFD analysis of hemodynamics in idealized abdominal aorta-renal artery junction: preliminary study to locate atherosclerotic plaque. Comput Res Model 11:695–706. https://doi.org/10.20537/2076-7633-2019-11-4-695-706
Bijari PB, Wasserman BA, Steinman DA (2014) Carotid bifurcation geometry is an independent predictor of early wall thickening at the carotid bulb. Stroke 45:473–478. https://doi.org/10.1161/strokeaha.113.003454
Bonati LH, Dobson J, Featherstone RL, Ederle J, van der Worp HB, de Borst GJ, Mali WP, Beard JD, Cleveland T, Engelter ST, Lyrer PA, Ford GA, Dorman PJ, Brown MM (2015) Long-term outcomes after stenting versus endarterectomy for treatment of symptomatic carotid stenosis: the International Carotid Stenting Study (ICSS) randomised trial. Lancet 385:529–538. https://doi.org/10.1016/s0140-6736(14)61184-3
Choudhry FA, Grantham JT, Rai AT, Hogg JP (2016) Vascular geometry of the extracranial carotid arteries: an analysis of length, diameter, and tortuosity. J Neurointerv Surg 8:536–540. https://doi.org/10.1136/neurintsurg-2015-011671
Gallo D, Bijari PB, Morbiducci U, Qiao Y, Xie YJ, Etesami M, Habets D, Lakatta EG, Wasserman BA, Steinman DA (2018) Segment-specific associations between local haemodynamic and imaging markers of early atherosclerosis at the carotid artery: an in vivo human study. J R Soc Interface. https://doi.org/10.1098/rsif.2018.0352
Kamenskiy AV, Pipinos II, Carson JS, MacTaggart JN, Baxter BT (2015) Age and disease-related geometric and structural remodeling of the carotid artery. J Vasc Surg 62:1521–1528. https://doi.org/10.1016/j.jvs.2014.10.041
Kikuta S, Iwanaga J, Kusukawa J, Tubbs RS (2019) Carotid sinus nerve: a comprehensive review of its anatomy, variations, pathology, and clinical applications. World Neurosurg 127:370–374. https://doi.org/10.1016/j.wneu.2019.04.064
Kotsis T, Christoforou P, Nastos K (2020) Carotid body baroreceptor preservation and control of arterial pressure in eversion carotid endarterectomy. Int J Angiol 29:33–38. https://doi.org/10.1055/s-0039-3400478
Kwak BR, Bäck M, Bochaton-Piallat ML, Caligiuri G, Daemen MJ, Davies PF, Hoefer IE, Holvoet P, Jo H, Krams R, Lehoux S, Monaco C, Steffens S, Virmani R, Weber C, Wentzel JJ, Evans PC (2014) Biomechanical factors in atherosclerosis: mechanisms and clinical implications. Eur Heart J 35(3013–3020):3020a–3020d. https://doi.org/10.1093/eurheartj/ehu353
Liapis CD, Bell PR, Mikhailidis D, Sivenius J, Nicolaides A, Fernandes e Fernandes J, Biasi G, Norgren L (2009) ESVS guidelines. Invasive treatment for carotid stenosis: indications, techniques. Eur J Vasc Endovasc Surg 37:1–19. https://doi.org/10.1016/j.ejvs.2008.11.006
McGill HC Jr, Strong JP (1968) The geographic pathology of atherosclerosis. Ann N Y Acad Sci 149:923–927. https://doi.org/10.1111/j.1749-6632.1968.tb53846.x
Nagargoje M, Gupta R (2020) Effect of sinus size and position on hemodynamics during pulsatile flow in a carotid artery bifurcation. Comput Methods Programs Biomed 192:105440. https://doi.org/10.1016/j.cmpb.2020.105440
Paraskevas KI, Robertson V, Saratzis AN, Naylor AR (2018) Editor’s choice - an updated systematic review and meta-analysis of outcomes following eversion vs. conventional carotid endarterectomy in randomised controlled trials and observational studies. Eur J Vasc Endovasc Surg 55:465–473. https://doi.org/10.1016/j.ejvs.2017.12.025
Parry SW (2020) Should we ever pace for carotid sinus syndrome? Front Cardiovasc Med 7:44–44. https://doi.org/10.3389/fcvm.2020.00044
Ricotta JJ, Aburahma A, Ascher E, Eskandari M, Faries P, Lal BK (2011) Updated society for vascular surgery guidelines for management of extracranial carotid disease. J Vasc Surg 54:e1-31. https://doi.org/10.1016/j.jvs.2011.07.031
Roskam J (1930) Un syndrome nouveau, syncopes cardiaques graves et syncopes répétées par hyperréflectivité sino-carotidienne, par Jacques Roskam. Masson
Rouvière H, Delmas A (1997) Anatomie humaine: descriptive, topographique et fonctionnelle vol 1. 14e édition edn. Elsevier Masson, Paris
Saho T, Onishi H (2017) Quantitative analysis of effects of hemodynamic stress on temporal variations of cardiac phases in models of human carotid bulbs. Radiol Phys Technol 10:475–482. https://doi.org/10.1007/s12194-017-0421-6
Seong J, Lieber BB, Wakhloo AK (2005) Morphological age-dependent development of the human carotid bifurcation. J Biomech 38:453–465. https://doi.org/10.1016/j.jbiomech.2004.04.022
Taurino M, Filippi F, Persiani F, Tirotti C, Dito R, Brancadoro D, Rizzo L (2014) Hemodynamic changes in Chevalier eversion versus conventional carotid endarterectomy. Eur J Vasc Endovasc Surg 48:514–520. https://doi.org/10.1016/j.ejvs.2014.08.005
Thomas JB, Antiga L, Che SL, Milner JS, Steinman DA, Spence JD, Rutt BK, Steinman DA (2005) Variation in the carotid bifurcation geometry of young versus older adults: implications for geometric risk of atherosclerosis. Stroke 36:2450–2456. https://doi.org/10.1161/01.STR.0000185679.62634.0a
Toorop RJ, Scheltinga MR, Moll FL, Bleys RL (2009) Anatomy of the carotid sinus nerve and surgical implications in carotid sinus syndrome. J Vasc Surg 50:177–182. https://doi.org/10.1016/j.jvs.2009.03.029
Vavra AK, Eskandari MK (2015) Treatment options for symptomatic carotid stenosis: timing and approach. Surgeon 13:44–51. https://doi.org/10.1016/j.surge.2014.09.001
Wells DR, Archie JP, Kleinstreuer C (1996) Effect of carotid artery geometry on the magnitude and distribution of wall shear stress gradients. J Vasc Surg 23:667–678. https://doi.org/10.1016/S0741-5214(96)80048-6
West CT, Brassett C, Gaunt ME (2018) Variations in carotid sinus anatomy and their relevance to carotid interventions. Folia Morphol (Warsz) 77:693–697. https://doi.org/10.5603/FM.a2018.0017
Yadav JS, Wholey MH, Kuntz RE, Fayad P, Katzen BT, Mishkel GJ, Bajwa TK, Whitlow P, Strickman NE, Jaff MR, Popma JJ, Snead DB, Cutlip DE, Firth BG, Ouriel K (2004) Protected carotid-artery stenting versus endarterectomy in high-risk patients. N Engl J Med 351:1493–1501. https://doi.org/10.1056/NEJMoa040127
Zarins CK, Giddens DP, Bharadvaj BK, Sottiurai VS, Mabon RF, Glagov S (1983) Carotid bifurcation atherosclerosis. Quantitative correlation of plaque localization with flow velocity profiles and wall shear stress. Circ Res 53:502–514. https://doi.org/10.1161/01.res.53.4.502
Zümre O, Salbacak A, Ciçekcibaşi AE, Tuncer I, Seker M (2005) Investigation of the bifurcation level of the common carotid artery and variations of the branches of the external carotid artery in human fetuses. Ann Anat 187:361–369. https://doi.org/10.1016/j.aanat.2005.03.007
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Conceptualization: R-AB, PB; methodology: R-AB, PB; formal analysis and investigation: R-AB, CS, PB; writing—original draft preparation: R-AB, CS, ACR, PB; writing—review and editing: R-AB, CS; resources: R-AB, ACR; supervision: PB. All authors read and approved the final manuscript.
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Approved by the Ethics Committee of "Sf. Apostol Andrei" County Hospital (no. 34490/8th August 2019).
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Baz, RA., Scheau, C., Rusali, A.C. et al. Computed tomography-assessed variations of the carotid sinus. Surg Radiol Anat 44, 293–298 (2022). https://doi.org/10.1007/s00276-021-02871-x
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DOI: https://doi.org/10.1007/s00276-021-02871-x