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

Somkiat Wongsuriyanan; Kitiporn Sriamornrattanakul

doi:10.4103/ajns.AJNS_285_20

Asian Journal of Neurosurgery, Inhaltsverzeichnis

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

Authors

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

Abstract

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

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Referenzen

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