{"title":"Ventricular Failure as a Cause of Unsuccessful Endoscopic Third Ventriculostomy","authors":"W. Murshid","doi":"10.1055/s-2002-32492","DOIUrl":"https://doi.org/10.1055/s-2002-32492","url":null,"abstract":"Introduction: Methods: Results: Discussion: Conclusion:","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"26 1","pages":"65 - 71"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74613621","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}
R. Revuelta1, N. Arriada-Mendicoa1, J. Ramirez-Alba1, J. Soto-Hernandez2
{"title":"Simultaneous Treatment of a Pituitary Adenoma and an Internal Carotid Artery Aneurysm Through a Supraorbital Keyhole Approach","authors":"R. Revuelta1, N. Arriada-Mendicoa1, J. Ramirez-Alba1, J. Soto-Hernandez2","doi":"10.1055/s-2002-32488","DOIUrl":"https://doi.org/10.1055/s-2002-32488","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"18 1","pages":"109 - 111"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72927601","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}
Basilar artery injury has been known as a potential lethal complication of endoscopic third ventriculostomy. In order to avoid this complication, endoscopic reverse third ventriculostomy via a trans-cisterna-magna route was studied. A cadaveric study was performed for navigation of a flexible endoscope through the cisterna magna. Three fresh, unfixed cadavers were used for this endoscopic navigation. In the prone position, a small vertical paramedian skin incision is made at the mid-portion of the posterior neck. An 11-mm threaded plastic tube is inserted towards the posterior arch of the atlas. After a partial hemilaminectomy of the atlas, a flexible endoscope is introduced into the cisterna magna and is navigated cephalad along the vertebrobasilar artery to the inferior aspect of the floor of the third ventricle. Through the working channel of a fiberscope, third ventriculostomy is performed in a reverse direction. Additional detailed anatomy was studied in fixed cadaveric head specimens with a rigid rod-lens endoscope for anatomic orientation. A novel technique of a trans-cisterna-magna reverse third ventriculostomy was studied in cadaveric specimens. This technique may avoid basilar artery injury which occurs occasionally during conventional third ventriculostomy.
{"title":"Endoscopic reverse third ventriculostomy via the cisterna magna: anatomical study and proposal of a novel procedure.","authors":"Kim Mh, Jho Hd","doi":"10.1055/S-2002-32486","DOIUrl":"https://doi.org/10.1055/S-2002-32486","url":null,"abstract":"Basilar artery injury has been known as a potential lethal complication of endoscopic third ventriculostomy. In order to avoid this complication, endoscopic reverse third ventriculostomy via a trans-cisterna-magna route was studied. A cadaveric study was performed for navigation of a flexible endoscope through the cisterna magna. Three fresh, unfixed cadavers were used for this endoscopic navigation. In the prone position, a small vertical paramedian skin incision is made at the mid-portion of the posterior neck. An 11-mm threaded plastic tube is inserted towards the posterior arch of the atlas. After a partial hemilaminectomy of the atlas, a flexible endoscope is introduced into the cisterna magna and is navigated cephalad along the vertebrobasilar artery to the inferior aspect of the floor of the third ventricle. Through the working channel of a fiberscope, third ventriculostomy is performed in a reverse direction. Additional detailed anatomy was studied in fixed cadaveric head specimens with a rigid rod-lens endoscope for anatomic orientation. A novel technique of a trans-cisterna-magna reverse third ventriculostomy was studied in cadaveric specimens. This technique may avoid basilar artery injury which occurs occasionally during conventional third ventriculostomy.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"27 1","pages":"84-86"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80206389","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}
Keigo Matsumoto, H. Masaki, M. Hirai, H. Tsujino, N. Hashimoto, K. Mineura
For the obliteration of a large aneurysm located at the cranial base or high cervical region, several therapeutic strategies including a parent vessel ligation, and endovascular occlusion have been reported, because it is difficult to access the aneurysm itself. We used a combined surgical and endovascular approach for the treatment of a large internal carotid artery aneurysm in the high cervical region. In the present case, we performed superficial temporal artery to middle cerebral artery bypass, then obliterated the aneurysm with distal coil embolization and proximal ligation in one session, using portable digital subtraction angiography. The combined endovascular and surgical approach involves less invasive surgery for complex cerebrovascular lesions.
{"title":"Combined Surgical and Intraoperative Endovascular Approach for a Giant Internal Carotid Artery Aneurysm in the High Cervical Region","authors":"Keigo Matsumoto, H. Masaki, M. Hirai, H. Tsujino, N. Hashimoto, K. Mineura","doi":"10.1055/S-2002-32494","DOIUrl":"https://doi.org/10.1055/S-2002-32494","url":null,"abstract":"For the obliteration of a large aneurysm located at the cranial base or high cervical region, several therapeutic strategies including a parent vessel ligation, and endovascular occlusion have been reported, because it is difficult to access the aneurysm itself. We used a combined surgical and endovascular approach for the treatment of a large internal carotid artery aneurysm in the high cervical region. In the present case, we performed superficial temporal artery to middle cerebral artery bypass, then obliterated the aneurysm with distal coil embolization and proximal ligation in one session, using portable digital subtraction angiography. The combined endovascular and surgical approach involves less invasive surgery for complex cerebrovascular lesions.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"4 1","pages":"112 - 113"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89378701","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}
A simple method to reapply the Leksell stereotactic frame using marked carbon pins is described. This method allows the reapplication in a quick and safe manner without repetition of the CT scan. The reproducibility was very high.
{"title":"A Simple Method of Reapplying the Leksell Stereotactic Frame without any Repetition of the CT Scan","authors":"J. Gliemroth, U. Kehler, H. Arnold","doi":"10.1055/S-2002-23577","DOIUrl":"https://doi.org/10.1055/S-2002-23577","url":null,"abstract":"A simple method to reapply the Leksell stereotactic frame using marked carbon pins is described. This method allows the reapplication in a quick and safe manner without repetition of the CT scan. The reproducibility was very high.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"24 1","pages":"16 - 18"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75351174","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}
P. Grunert, J. Espinosa, C. Busert, M. Günthner, R. Filippi, S. Farag, N. Hopf
Frame-based stereotactic biopsies are time-consuming procedures making necessary head fixation in a ring, explicit coordinate calculation and setting of the parameters. Frameless systems make many of these intermediate steps unnecessary, impose less mechanical restrictions regarding access to the lesions, and with slight modifications can be used to perform stereotactic biopsies. A special adaptation designed to fix the holder and the biopsy instrument is described. The neuronavigation optical tracking system of Radionics was used. CT scans were performed with 6 skin markers. Calibration was performed after head fixation in the Mayfield clamp. Mean calibration error was 2.19 +/- 0.81 mm. The light-emitting diode holder of the pointer was fixed into 2 Leila arms and moved under visual control based on CT images. The target point was selected, Leila arms fixed and a burr hole performed. The cannula was introduced to the target, being fitted with a depth stop in a length identical to that of the pointer on the screen. If necessary a second trajectory was easily selected. 49 patients underwent a frameless stereotactic biopsy. All targets except seven were superficial or in the white matter. In selected cases the biopsies were taken from deep-seated lesions. A histological diagnosis was obtained in 100 % of the cases. Four cases deteriorated postoperatively, two of these related to intratumoral bleeding. Navigation is a simple and effective method to perform biopsies of superficial and relatively large lesions. Frame-based procedures are restricted to brainstem tumors and lesions less than 1.5 cm in diameter.
{"title":"Stereotactic Biopsies Guided by an Optical Navigation System: Technique and Clinical Experience","authors":"P. Grunert, J. Espinosa, C. Busert, M. Günthner, R. Filippi, S. Farag, N. Hopf","doi":"10.1055/s-2002-23576","DOIUrl":"https://doi.org/10.1055/s-2002-23576","url":null,"abstract":"Frame-based stereotactic biopsies are time-consuming procedures making necessary head fixation in a ring, explicit coordinate calculation and setting of the parameters. Frameless systems make many of these intermediate steps unnecessary, impose less mechanical restrictions regarding access to the lesions, and with slight modifications can be used to perform stereotactic biopsies. A special adaptation designed to fix the holder and the biopsy instrument is described. The neuronavigation optical tracking system of Radionics was used. CT scans were performed with 6 skin markers. Calibration was performed after head fixation in the Mayfield clamp. Mean calibration error was 2.19 +/- 0.81 mm. The light-emitting diode holder of the pointer was fixed into 2 Leila arms and moved under visual control based on CT images. The target point was selected, Leila arms fixed and a burr hole performed. The cannula was introduced to the target, being fitted with a depth stop in a length identical to that of the pointer on the screen. If necessary a second trajectory was easily selected. 49 patients underwent a frameless stereotactic biopsy. All targets except seven were superficial or in the white matter. In selected cases the biopsies were taken from deep-seated lesions. A histological diagnosis was obtained in 100 % of the cases. Four cases deteriorated postoperatively, two of these related to intratumoral bleeding. Navigation is a simple and effective method to perform biopsies of superficial and relatively large lesions. Frame-based procedures are restricted to brainstem tumors and lesions less than 1.5 cm in diameter.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"2 1","pages":"11 - 15"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78442425","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}
{"title":"Endoscopy in the 15th Century","authors":"S. Keskil1, H. Sabuncuoğlu2","doi":"10.1055/s-2002-23588","DOIUrl":"https://doi.org/10.1055/s-2002-23588","url":null,"abstract":"","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"26 1","pages":"45 - 46"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73348228","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}
A. Alfieri, Raffaele Schettino, A. Tarfani, O. Bonzi, Rossi Ga, L. Monolo
An endoscopic endonasal approach was performed to remove an intra-suprasellar Rathke's cleft cyst. Rathke's cleft cyst are benign lesions, rarely diagnosed because they are often asymptomatic. To the best of our knowledge, at least 475 cases of Rathke's cleft cysts have been reported. They seem to arise from remnants of Rathke's pouch, an invagination of the stomodeum. A 52-year-old woman, complaining of bilateral frontal headaches, was operated on by using an endoscopic endonasal approach, for an intra-suprasellar tumor. The pre-operative diagnosis was non-functioning pituitary adenoma. Intra-operatively a creamy-coloured viscous tissue was found. After the removal of the cyst contents and of the capsule, the suprasellar structures were seen well. The chiasmatic cistern, the chiasm, the pituitary stalk and the pituitary gland were visualized with 0 and 30 degree endoscopes. The pathological findings showed a well-differentiated cuboidal epithelium. The diagnosis was Rathke's cleft cyst. No post-operative complications were observed. The endoscopic technique was particularly suitable in this case, both for the Rathke's cleft features and for an excellent outcome. The Rathke's cleft cyst was easily removed by suction and the cyst wall was entirely removed with curettes and pituitary punches. The hypophysis was distinguished from the cyst and was preserved. The surgical manoeuvres were all done under direct visual control. The absence of nasal packing and of breathing difficulties made comfortable the post-operative outcome. Thus, the endoscopic endonasal approach can be considered the favourite technique in case of either intra- and/or suprasellar Rathke's cleft cysts.
{"title":"Endoscopic Endonasal Removal of an Intra-Suprasellar Rathke's Cleft Cyst: Case Report and Surgical Considerations","authors":"A. Alfieri, Raffaele Schettino, A. Tarfani, O. Bonzi, Rossi Ga, L. Monolo","doi":"10.1055/s-2002-23582","DOIUrl":"https://doi.org/10.1055/s-2002-23582","url":null,"abstract":"An endoscopic endonasal approach was performed to remove an intra-suprasellar Rathke's cleft cyst. Rathke's cleft cyst are benign lesions, rarely diagnosed because they are often asymptomatic. To the best of our knowledge, at least 475 cases of Rathke's cleft cysts have been reported. They seem to arise from remnants of Rathke's pouch, an invagination of the stomodeum. A 52-year-old woman, complaining of bilateral frontal headaches, was operated on by using an endoscopic endonasal approach, for an intra-suprasellar tumor. The pre-operative diagnosis was non-functioning pituitary adenoma. Intra-operatively a creamy-coloured viscous tissue was found. After the removal of the cyst contents and of the capsule, the suprasellar structures were seen well. The chiasmatic cistern, the chiasm, the pituitary stalk and the pituitary gland were visualized with 0 and 30 degree endoscopes. The pathological findings showed a well-differentiated cuboidal epithelium. The diagnosis was Rathke's cleft cyst. No post-operative complications were observed. The endoscopic technique was particularly suitable in this case, both for the Rathke's cleft features and for an excellent outcome. The Rathke's cleft cyst was easily removed by suction and the cyst wall was entirely removed with curettes and pituitary punches. The hypophysis was distinguished from the cyst and was preserved. The surgical manoeuvres were all done under direct visual control. The absence of nasal packing and of breathing difficulties made comfortable the post-operative outcome. Thus, the endoscopic endonasal approach can be considered the favourite technique in case of either intra- and/or suprasellar Rathke's cleft cysts.","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"58 1","pages":"47 - 51"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73495381","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}
U. Spetzger1, 2, 3, U. Hubbe2, T. Struffert1, 3, M. Reinges1, T. Krings3, G. Krombach3, J. Zentner2, J. Gilsbach1, 3, H. Stiehl4
“machine made errors” “man made errors”
“机器犯错误”“人犯错误”
{"title":"Error Analysis in Cranial Neuronavigation","authors":"U. Spetzger1, 2, 3, U. Hubbe2, T. Struffert1, 3, M. Reinges1, T. Krings3, G. Krombach3, J. Zentner2, J. Gilsbach1, 3, H. Stiehl4","doi":"10.1055/s-2002-23583","DOIUrl":"https://doi.org/10.1055/s-2002-23583","url":null,"abstract":"“machine made errors” “man made errors”","PeriodicalId":49808,"journal":{"name":"Minimally Invasive Neurosurgery","volume":"376 1","pages":"6 - 10"},"PeriodicalIF":0.0,"publicationDate":"2002-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75515759","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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