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CC BY-NC-ND 4.0 · Asian J Neurosurg 2020; 15(04): 913-918
DOI: 10.4103/ajns.AJNS_285_20
Original Article

Preoperative localization of the carotid bifurcation for cervical carotid exposure using the mastoid-hyoid line

Somkiat Wongsuriyanan
Department of Surgery, Division of Neurosurgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok
,
Kitiporn Sriamornrattanakul
Department of Surgery, Division of Neurosurgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok
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Background and Importance: The location of the carotid bifurcation (CB) is highly variable, which makes precise exposure of the cervical carotid artery difficult, especially in transverse incisions. The method for preoperative localization of the CB is not well established. We used the distance from the mastoid-hyoid (M-H) line to the CB, measured preoperatively with computed tomography angiography, to localize the location of the transverse skin incision. We describe and evaluate the accuracy of a method for preoperative localization of the CB for cervical carotid exposure. Methods: The researchers retrospectively evaluated 16 patients with aneurysms arising from the internal carotid artery (ICA) who had received cervical carotid exposure using the localization method of incision and were retrospectively evaluated from February 2018 to November 2019. The method of measurement and localization of the skin incision are described, and two illustrative cases are demonstrated. Results: Saccular aneurysms of the ophthalmic (C2) segment and communicating (C1) segment of the ICA were found in 8 and 8 patients, respectively. Nine patients had left-sided exposure, and 7 patients had right-sided exposure. The mean distance from the M-H line to the CB was 2.1 cm (range 0.5–3.5 cm). The accuracy of this method was 93.8%. No paralysis of the depressor anguli oris or the depressor labii inferioris was found postoperatively. Conclusion: The distance from the M-H line to the CB can be used to estimate transverse skin incisions for cervical carotid exposure.

Key-words:

Carotid bifurcation - cervical carotid exposure - mastoid-hyoid line - preoperative localization

Financial support and sponsorship

Nil.




Publication History

Received: 09 June 2020

Accepted: 25 July 2020

Article published online:
16 August 2022

© 2020. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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