TY - JOUR
T1 - The Microsurgical Relationships between Internal Carotid-Posterior Communicating Artery Aneurysms and the Skull Base
AU - Matsuo, Satoshi
AU - Komune, Noritaka
AU - Tsuchimochi, Ryosuke
AU - Kai, Yasutoshi
AU - Matsumoto, Kenichi
AU - Haga, Sei
AU - Inoue, Takuya
N1 - Funding Information:
The authors have no personal financial or institutional interest in any of the materials or devices described in this article. Part of this work was supported by the University of Florida Foundation.
Publisher Copyright:
© 2018 Georg Thieme Verlag KG Stuttgart . New York.
PY - 2017/12/29
Y1 - 2017/12/29
N2 - Objective This study aimed to review the anatomical and clinical characteristics of internal carotid-posterior communicating artery (IC-PC) aneurysms, especially those located close to the skull base. Methods The microsurgical anatomy around the posterior communicating artery (PComA) was examined in a dry skull and five formalin-fixed human cadaveric heads. The clinical characteristics of 37 patients with 39 IC-PC aneurysms, who were treated microsurgically between April 2008 and July 2016, were retrospectively reviewed. Results The anterior clinoid process (ACP), as well as the anterior petroclinoidal dural fold (APF), which forms part of the oculomotor triangle, are closely related to the origin of the PComA. Among the 39 IC-PC aneurysms, anterior clinoidectomy was performed on 4 (10.3%) and a partial resection of the APF was performed on 2 (5.1%). Both of these aneurysms projected inferior to the tentorium, or at least part of the aneurysm's dome was inferior to the tentorium. Conclusion Proximally located IC-PC aneurysms have an especially close relationship with the ACP and APF. We should be familiar with the anatomical relationship between IC-PC aneurysms and the structures of the skull base to avoid hazardous complications.
AB - Objective This study aimed to review the anatomical and clinical characteristics of internal carotid-posterior communicating artery (IC-PC) aneurysms, especially those located close to the skull base. Methods The microsurgical anatomy around the posterior communicating artery (PComA) was examined in a dry skull and five formalin-fixed human cadaveric heads. The clinical characteristics of 37 patients with 39 IC-PC aneurysms, who were treated microsurgically between April 2008 and July 2016, were retrospectively reviewed. Results The anterior clinoid process (ACP), as well as the anterior petroclinoidal dural fold (APF), which forms part of the oculomotor triangle, are closely related to the origin of the PComA. Among the 39 IC-PC aneurysms, anterior clinoidectomy was performed on 4 (10.3%) and a partial resection of the APF was performed on 2 (5.1%). Both of these aneurysms projected inferior to the tentorium, or at least part of the aneurysm's dome was inferior to the tentorium. Conclusion Proximally located IC-PC aneurysms have an especially close relationship with the ACP and APF. We should be familiar with the anatomical relationship between IC-PC aneurysms and the structures of the skull base to avoid hazardous complications.
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U2 - 10.1055/s-0037-1615804
DO - 10.1055/s-0037-1615804
M3 - Article
AN - SCOPUS:85040042273
SN - 2193-634X
VL - 79
SP - 427
EP - 436
JO - Journal of Neurological Surgery, Part B: Skull Base
JF - Journal of Neurological Surgery, Part B: Skull Base
IS - 5
ER -