J Neurol Surg A Cent Eur Neurosurg 2019; 80(05): 399-403
DOI: 10.1055/s-0039-1684025
Case Report
Georg Thieme Verlag KG Stuttgart · New York

Preoperative Considerations in Occipital Artery-high-riding Posterior Inferior Cerebellar Artery Bypass: A Report of Two Cases and a Literature Review

Yeong-Jin Kim
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
,
Jae-Young Kim
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
,
Yong-Hwan Cho
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
,
You-Sub Kim
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
,
Tae-Sun Kim
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
,
1   Department of Neurosurgery, Chonnam Nat' University Medical School and Hospital, Gwangju, Korea, Republic of
› Author Affiliations
Funding Source This work was supported by a grant (CRI18036–1) from Chonnam National University Hospital Biomedical Research Institute.
Further Information

Publication History

16 May 2018

17 December 2018

Publication Date:
24 April 2019 (online)

Abstract

Nonsaccular vertebral artery aneurysms involving the posterior inferior cerebellar artery (PICA) are rare. Treatment is considered a significant challenge because of their angiographic and anatomical features, especially in high-riding PICA. Therefore, meticulous preoperative angiographic and anatomical evaluation is necessary. Moreover, consideration of the distance between the cerebellar skull base and caudal loop of the PICA is important. We present two cases of occipital artery-high-riding PICA bypass and discuss important preoperative technical considerations.

 
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