• World Neurosurg · Dec 2017

    Case Reports

    Flexible ultrathin endoscope integrated with irrigation suction apparatus for assisting microneurosurgery.

    • Naoki Otani, Yuji Morimoto, Kazuya Fujii, Terushige Toyooka, Kojiro Wada, and Kentaro Mori.
    • Department of Neurosurgery, National Defense Medical College, Tokorozawa, Saitama, Japan. Electronic address: naotani@ndmc.ac.jp.
    • World Neurosurg. 2017 Dec 1; 108: 589-594.

    BackgroundEndoscopy can observe the anatomical components in a deeply located and/or hidden area during neurosurgical procedures under the operating microscope. We have newly developed a flexible ultrathin endoscope integrated with irrigation suction apparatus (FUEISA) to visualize deeply located and/or hidden areas for assisting microneurosurgery.ObjectiveThe present study investigated the usefulness of the FUEISA system for direct clipping surgery of cerebral aneurysms.MethodsTwenty-one patients underwent microneurosurgery assisted with the FUEISA system for direct clipping of cerebral aneurysms. The flexible ultrathin endoscope (outer diameter 0.75mm) consists of an image guide (6000 dpi) and a light guide, integrated with the irrigation suction apparatus. This endoscopic system was inserted before and after clipping to observe the anatomical conditions surrounding the lesions.ResultsIn all cases, handling and operation of the FUEISA was technically successful during the surgical procedure. The ultrathin endoscope was adequately integrated with the irrigation suction apparatus in all cases. General anatomy visualization including the lenticulostriate arteries, medial striate arteries, and/or internal carotid artery perforators was possible, and the correct clip positioning and vessel conditions were easily checked. The endoscope revealed that the clip had been positioned incorrectly in one case. No complications associated with the endoscopic system occurred.ConclusionsThe FUEISA system can be applied with safe manipulation, which was remarkably useful for confirmation of the presence of perforators and cranial nerves behind the lesions, particularly anatomical components located in deep and/or hidden areas during clipping of cerebral aneurysms.Copyright © 2017 Elsevier Inc. All rights reserved.

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