Endoscopy in Neuro-Otology 1st Edition

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Endoscopy is firmly established as a major technology for investigation and therapy in a wide range of disciplines. The field of otolaryngology or head and neck surgery owes its existence to the very special difficulties of examining the dark recesses of the head and neck. Therefore, this field has been at the forefront of developing endoscopic techniques for use in this anatomic area. While rhinologists have been quick to embrace the endoscope in the management of sinus disorders, otologists and skull base surgeons have been less than enthusiastic despite the vast range of possible applications in this area. In this book the authors consider the new field of application of endoscope technology in neuro-otology and skull base surgery. About The Author Dr. Sanna is part of The Grupppo Otologico, a world-renowned specialist center for the diagnosis and medical and surgical treatment of diseases of the ear, skull base, facial nerve, head and neck, and paranasal sinuses. Table of Contents CHAPTER I ENDOSCOPE TECHNOLOGY 1 - Introduction 2 - History of the Cerebellopontine Angle Endoscopy 3 - Endoscope Technology Light transmission Image transmission 4 - Material Endoscope Video-camera Photographic and video instrumentation 5 - Concept of Minimally Invasive Neurotologic Surgery Key hole approach Adapted micro instrumentation Neuromonitoring Neuroendoscopy 1 - Introduction 2 - The Cerebellopontine Angle Endoscopy History References 3 - Endoscope Technology 3-1 - Optical Imaging System (photo n° 1, 2, 3) 3.2 - Light Sources (photo n° 4) 3.3 - Video for Viewing and Recording 3.4 - Sterilization of the Endoscopic Equipment References CHAPTER II ENDOSCOPIC ANATOMY OF THE CEREBELLOPONTINE ANGLE AND ADJACENT STRUCTURES Posterior View of the Cerebellopontine Angle Trigeminal Area The Acousticofacial Nerve Bundle Lower Cranial Nerve Area Foramen Magnum Superior View of the Cerebellopontine Angle The Intracanicular Part of the Acoustico Facial Nerve Bundle The Cerebellopontine Portion of the Acoustico Facial Nerve Bundle Anterior to the Acousticofacial Nerve Bundle Inferior to the Acousticofacial Nerve Bundle References CHAPTER III MICROSCOPIC AND ENDOSCOPIC NEUROTOLOGIC SURGERY Incapacitating Vertigo Meniere Disease Disabling Positional Vertigo References Hemifacial Spasm Pathophysiology Diagnostic Evaluation Endoscopic Observations References Trigeminal Neuralgia Diagnostic Evaluation Endoscopic Observations References Acoustic Neuroma Retrosigmoid Approach First Case Second Case Third Case Acoustic neuroma and hearing preservation Middle Fossa Approach Retrolabyrinthine Approach Left Retrolabyrinthine Approach Translabyrinthine Approach Before tumor removal After Tumor Removal References Lower Cranial Nerve Neuroma References Cholesteatoma First case Second Case References