Why the study?
Does a modified presigmoid transtentorial approach improve operative view and time for STA-SCA bypass compared to the traditional subtemporal approach?
Does a modified presigmoid transtentorial approach improve operative view and time for STA-SCA bypass compared to the traditional subtemporal approach?
A modified presigmoid transtentorial approach for STA-SCA bypass may offer a wider operative field and faster anastomosis times while avoiding temporal lobe injury.
May reduce temporal lobe injury risk in STA-SCA bypass; leaves open need for clinical validation.
Deep-seated bypass is one of the most difficult procedures in cerebrovascular surgery. Creating an anastomosis between the superficial temporal artery (STA) and superior cerebellar artery (SCA) using a subtemporal approach is time consuming because the SCA is located deep within the ambient cistern and vein of Labbe and temporal lobe, making it difficult to achieve a wide operative field. We describe a modification of deep-seated bypass using a semi-prone park-bench position and presigmoid transtentorial approach to achieve a wide operative view without temporal lobe injury. This skull base approach may permit an STA-SCA anastomosis within 20 minutes using short forceps.
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Chokyu et al. (2018) studied this question.
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