Occipital artery-posterior inferior cerebellar artery bypass: a cadaveric feasibility study.

ABSTRACT:

Purpose

To demonstrate that occipital artery (OA)-p1 posterior inferior cerebellar artery (PICA) bypass can be an alternative for complex posterior circulation aneurysms.

Methods

A far-lateral approach to craniotomy was performed on 20 cadaveric specimens, and the OA was obtained 'in-line.' Its length, diameter, and the number of p1/p2 and p3 segmental perforators were determined, and the relationship between the caudal loop and cerebellar tonsil position was also assessed. The distance between the PICA's origin and the cranial nerve XI (CN XI), the buffer length above the CN XI after dissection, the OA length required to complete the OA-p1/p3 PICA bypass, and the p1 and p3 segment diameters were all measured. A bypass training practical scale (TSIO) was used to evaluate the

SUBMITTER: Yuan Y 

PROVIDER: S-EPMC10317879 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature