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J Neurol Surg B Skull Base 2016; 77(04): 308-313
DOI: 10.1055/s-0035-1566252
Original Article
Georg Thieme Verlag KG Stuttgart · New York

A New Window for the Treatment of Posterior Cerebral Artery, Superior Cerebellar Artery, and Basilar Apex Aneurysm: The Expanded Endoscopic Endonasal Approach

Ana M. Lemos-Rodríguez
1   Department of Otolaryngology, Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
,
Satyan Sreenath
1   Department of Otolaryngology, Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
,
Ajay Unnithan
2   Department of Neurosurgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
,
Vivian Doan
2   Department of Neurosurgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
,
Pablo F. Recinos
3   Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, United States
,
Adam Zanation
1   Department of Otolaryngology, Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
2   Department of Neurosurgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
,
Deanna Sasaki-Adams
1   Department of Otolaryngology, Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
2   Department of Neurosurgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
› Author Affiliations
Further Information

Publication History

13 March 2015

16 September 2015

Publication Date:
02 December 2015 (online)

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Abstract

Objective To explore the feasibility of an endoscopic endonasal transclival approach to treat aneurysms arising in the basilar apex, posterior cerebral arteries, and superior cerebellar arteries.

Study Design Cadaveric anatomical study.

Participants Fifteen cadaveric specimens.

Main Outcome Measures Degree of surgical exposure of each artery attained, distance from the nasal vestibule to these three arteries, and feasibility of clipping these vessels using standard vascular clip applicators.

Results Both posterior cerebral arteries were exposed, 0.67 cm (standard deviation [SD]: 0.2) on the right side and 0.59 cm (SD: 0.2) on the left side. Both right and left superior cerebral arteries were exposed, 0.6 cm (SD: 0.2) and 0.7 cm (SD: 0.3), respectively. The length of the basilar artery exposed was 2.6 cm (SD: 0.3). The distance from the nasal vestibule to the posterior cerebral artery, superior cerebellar artery, and basilar apex was 10 cm with an SD of ± 0.7, 0.6, and 0.8 cm, respectively. We were able to apply clips on each of these three vessels with a minimal alteration of surrounding normal tissue.

Conclusion The endoscopic endonasal transclival approach represents a potentially feasible surgical corridor to treat aneurysms arising from these vessels.

Keywords

endoscopic endonasal approach - clipping aneurysms - posterior cerebral artery aneurysms - basilar apex aneurysm - superior cerebellar aneurysm

Note

This article was presented in the poster session at the North American Skull Base Society Conference; February 20–22, 2015; Tampa, FL, USA.


 

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