T. Inamura, H. Muratani, S. Ogami, T. Hikita, M. Fukui
We treated recurrent hydrocephalus in a previously shunted patient by neuroendoscopic third ventriculostomy. A tear was noted in the septum pellucidum. As the foramen of Monro was found to be occluded, we first fenestrated the floor of the lateral ventricle and then performed third ventriculostomy through the fenestration. A tough membrane believed to be Liliequist's membrane isolated the space immediately beneath floor of the third ventricle from the cistern below. Cerebrospinal fluid pulsation appeared after fenestration of this membrane. These obstructions presumably resulted from congenital and/or inflammatory causes. In cases such as this, successful neuroendoscopic third ventriculostomy presents a challenge to surgical judgment.
{"title":"Neuroendoscopic Third Ventriculostomy in a Patient with Occluded Foramen of Monro: A Case Report","authors":"T. Inamura, H. Muratani, S. Ogami, T. Hikita, M. Fukui","doi":"10.1055/S-2002-23581","DOIUrl":"https://doi.org/10.1055/S-2002-23581","url":null,"abstract":"We treated recurrent hydrocephalus in a previously shunted patient by neuroendoscopic third ventriculostomy. A tear was noted in the septum pellucidum. As the foramen of Monro was found to be occluded, we first fenestrated the floor of the lateral ventricle and then performed third ventriculostomy through the fenestration. A tough membrane believed to be Liliequist's membrane isolated the space immediately beneath floor of the third ventricle from the cistern below. Cerebrospinal fluid pulsation appeared after fenestration of this membrane. These obstructions presumably resulted from congenital and/or inflammatory causes. In cases such as this, successful neuroendoscopic third ventriculostomy presents a challenge to surgical judgment.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"13 1","pages":"52 - 54"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74190907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Kaiser1, A. Kübler1, T. Hinterberger1, N. Neumann1, N. Birbaumer1, 2
{"title":"A Non-Invasive Communication Device for the Paralyzed","authors":"J. Kaiser1, A. Kübler1, T. Hinterberger1, N. Neumann1, N. Birbaumer1, 2","doi":"10.1055/s-2002-23578","DOIUrl":"https://doi.org/10.1055/s-2002-23578","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"86 1","pages":"19 - 23"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79363486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Cha1, R. Jarrahy1, W. Yong2, T. Eby1, H. Shahinian1
{"title":"A Rare Symptomatic Presentation of Ecchordosis Physaliphora and Unique Endoscope-Assisted Surgical Management","authors":"S. Cha1, R. Jarrahy1, W. Yong2, T. Eby1, H. Shahinian1","doi":"10.1055/s-2002-23584","DOIUrl":"https://doi.org/10.1055/s-2002-23584","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"42 1","pages":"36 - 40"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77345892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Burtscher1, R. Bale2, A. Dessl2, W. Eisner1, K. Twerdy1, R. Sweeney3, S. Felber2
{"title":"Virtual Endoscopy for Planning Neuro-Endoscopic Intraventricular Surgery","authors":"J. Burtscher1, R. Bale2, A. Dessl2, W. Eisner1, K. Twerdy1, R. Sweeney3, S. Felber2","doi":"10.1055/s-2002-23580","DOIUrl":"https://doi.org/10.1055/s-2002-23580","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"6 1","pages":"24 - 31"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75925932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Burtscher1, S. Felber2, K. Twerdy1, J. Langmayr1
{"title":"Endoscope-Assisted Interlaminar Removal of an Ependymoma of the Cauda Equina","authors":"J. Burtscher1, S. Felber2, K. Twerdy1, J. Langmayr1","doi":"10.1055/s-2002-23579","DOIUrl":"https://doi.org/10.1055/s-2002-23579","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"56 1","pages":"41 - 44"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77574099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Microvascular decompression of the trigeminal nerve is an accepted and effective means of treating patients with trigeminal neuralgia in whom compression of the nerve by a vascular structure is implicated in the pathogenesis of the disease. The current standard technique uses the binocular operating microscope for all intra-operative visualization. Posterior fossa endoscopy has demonstrated that the endoscope provides more comprehensive views of the anatomy of the cerebellopontine angle than does the operating microscope. To date, endoscopy has only been used to supplement microscopy in cranial nerve decompression surgery. In this report, we describe our completely endoscopic surgical technique as we present the case of a patient with trigeminal neuralgia who underwent successful vascular decompression by this approach. Using this technique the offending vessel was separated from the nerve with minimal brain retraction or dissection of surrounding structures. This report represents the first documented case where the endoscope was used as the exclusive imaging modality for decompression of the trigeminal nerve. From our experience we conclude that the endoscope's superior visualization more accurately identifies neurovascular conflicts, and provides a comprehensive evaluation of the completeness of the decompression. Additionally, this new method minimizes the risks of brain retraction and extensive dissection often required for microscopic exposure. From this study we conclude that completely endoscopic vascular decompression represents the next step forward in the safe and effective surgical treatment of trigeminal neuralgia.
{"title":"Fully Endoscopic Vascular Decompression of the Trigeminal Nerve","authors":"R. Jarrahy, J. Eby, S. Cha, H. Shahinian","doi":"10.1055/s-2002-23586","DOIUrl":"https://doi.org/10.1055/s-2002-23586","url":null,"abstract":"Microvascular decompression of the trigeminal nerve is an accepted and effective means of treating patients with trigeminal neuralgia in whom compression of the nerve by a vascular structure is implicated in the pathogenesis of the disease. The current standard technique uses the binocular operating microscope for all intra-operative visualization. Posterior fossa endoscopy has demonstrated that the endoscope provides more comprehensive views of the anatomy of the cerebellopontine angle than does the operating microscope. To date, endoscopy has only been used to supplement microscopy in cranial nerve decompression surgery. In this report, we describe our completely endoscopic surgical technique as we present the case of a patient with trigeminal neuralgia who underwent successful vascular decompression by this approach. Using this technique the offending vessel was separated from the nerve with minimal brain retraction or dissection of surrounding structures. This report represents the first documented case where the endoscope was used as the exclusive imaging modality for decompression of the trigeminal nerve. From our experience we conclude that the endoscope's superior visualization more accurately identifies neurovascular conflicts, and provides a comprehensive evaluation of the completeness of the decompression. Additionally, this new method minimizes the risks of brain retraction and extensive dissection often required for microscopic exposure. From this study we conclude that completely endoscopic vascular decompression represents the next step forward in the safe and effective surgical treatment of trigeminal neuralgia.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"35 1","pages":"32 - 35"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74796859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Gliemroth, C. Gaebel, U. Kehler, I. Grande-Nagel, U. Missler, H. Arnold
in vitro
在体外
{"title":"An In Vitro Study to Evaluate the Accuracy of Stereotactic Localization Using Magnetic Resonance Imaging by Means of the Leksell Stereotactic System","authors":"J. Gliemroth, C. Gaebel, U. Kehler, I. Grande-Nagel, U. Missler, H. Arnold","doi":"10.1055/s-2002-23585","DOIUrl":"https://doi.org/10.1055/s-2002-23585","url":null,"abstract":"in vitro","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"101 1","pages":"1 - 5"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80408284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Symptomatic recurrence of an histologically verified intra- and suprasellar Rathke's cleft cyst (RCC) was observed 4 months following transsphenoidal microsurgery. The space-occupying cyst was treated by endocavitary irradiation with colloidal rhenium-186 via a previously implanted catheter with an attached subcutaneous reservoir. The calculated dose of 4.4 Gy was able to stop the production of cyst fluid. Follow-up after intracavitary irradiation extends over 13 months. The cyst, with an initial size of 3 x 3 x 4 cm, has been reduced to 1.1 x 1.06 x 1.2 cm. The production of cyst fluid has decreased from 25 - 30 ml within 2 months before treatment to zero. The patient's visual and mental status as well as her quality of life are normal.
{"title":"Successful Low-Dose Intracavitary Irradiation of a Rathke's Cleft Cyst with Colloidal Rhenium-186","authors":"J. Moringlane, C. Alexander, C. Kirsch","doi":"10.1055/S-2001-19936","DOIUrl":"https://doi.org/10.1055/S-2001-19936","url":null,"abstract":"Symptomatic recurrence of an histologically verified intra- and suprasellar Rathke's cleft cyst (RCC) was observed 4 months following transsphenoidal microsurgery. The space-occupying cyst was treated by endocavitary irradiation with colloidal rhenium-186 via a previously implanted catheter with an attached subcutaneous reservoir. The calculated dose of 4.4 Gy was able to stop the production of cyst fluid. Follow-up after intracavitary irradiation extends over 13 months. The cyst, with an initial size of 3 x 3 x 4 cm, has been reduced to 1.1 x 1.06 x 1.2 cm. The production of cyst fluid has decreased from 25 - 30 ml within 2 months before treatment to zero. The patient's visual and mental status as well as her quality of life are normal.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"PP 1","pages":"218 - 220"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84297987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Visualization of near-infrared fluorescence through a surgical microscope can provide intraoperative information about deep-seated tissues. We studied the possibility of taking a near-infrared image through a surgical microscope after intravenous injection of indocyanine green (ICG). The surgical microscopes we used were Zeiss models OPMI MD and OPMI CS-NC. We used a halogen lamp as a light source, a band pass filter of 760 - 810 nm as an excitation filter, a laser light of 800 nm as an external light source, and a band pass filter of 820 - 920 nm as a barrier filter. Near-infrared fluorescence of vessels on the brain surface and of the dural sinus was visualized through the dura mater after intravenous injection of 25 mg ICG using a Hitachi KP-160 camera. Near-infrared fluorescence of vessels on the brain surface was observed through the dura mater. Venous images were clearer than were arterial ones. The dural sinus and the bridging veins were also clearly visualized. These results suggest that a clinical application of near-infrared fluorescence microscopy is possible. However, a stronger fluorescence emitted from ICG will be necessary for such a microscope to have practical use.
{"title":"Development and Clinical Application of Near-Infrared Surgical Microscope: Preliminary Report","authors":"T. Kuroiwa, Y. Kajimoto, T. Ohta","doi":"10.1055/S-2001-19929","DOIUrl":"https://doi.org/10.1055/S-2001-19929","url":null,"abstract":"Visualization of near-infrared fluorescence through a surgical microscope can provide intraoperative information about deep-seated tissues. We studied the possibility of taking a near-infrared image through a surgical microscope after intravenous injection of indocyanine green (ICG). The surgical microscopes we used were Zeiss models OPMI MD and OPMI CS-NC. We used a halogen lamp as a light source, a band pass filter of 760 - 810 nm as an excitation filter, a laser light of 800 nm as an external light source, and a band pass filter of 820 - 920 nm as a barrier filter. Near-infrared fluorescence of vessels on the brain surface and of the dural sinus was visualized through the dura mater after intravenous injection of 25 mg ICG using a Hitachi KP-160 camera. Near-infrared fluorescence of vessels on the brain surface was observed through the dura mater. Venous images were clearer than were arterial ones. The dural sinus and the bridging veins were also clearly visualized. These results suggest that a clinical application of near-infrared fluorescence microscopy is possible. However, a stronger fluorescence emitted from ICG will be necessary for such a microscope to have practical use.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"51 1","pages":"240 - 242"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81326415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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