Abstract
The Anterior transpetrosal approach is a skull base surgical procedure that can provide a wide operative view of the petroclival and the prepontine region. This approach requires one to accurately understand the anatomy of the anterior part of the temporal bone and the histological structure of the dura mater. In addition, it is necessary to learn operative techniques for venous preservation, accurate hemostasis at each step, and prevention of cerebrospinal fluid leakage. In this article, the anatomy and surgical techniques that are required for a beginner to master the anterior transpetrosal approach are explained step by step.
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