Now showing 1 - 10 of 74
  • 2022Journal Article
    [["dc.bibliographiccitation.journal","Neurosurgical Review"],["dc.contributor.author","Abboud, Tammam"],["dc.contributor.author","Mader, Marius"],["dc.contributor.author","Komboz, Fares"],["dc.contributor.author","Martens, Tobias"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Rohde, Veit"],["dc.date.accessioned","2022-06-01T09:39:51Z"],["dc.date.available","2022-06-01T09:39:51Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1007/s10143-022-01803-6"],["dc.identifier.pii","1803"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108578"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1437-2320"],["dc.rights.uri","https://www.springer.com/tdm"],["dc.title","False-positive results in transcranial motor evoked potentials for outcome prognostication during surgery for supratentorial lesions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article
    [["dc.bibliographiccitation.firstpage","407"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Translational Stroke Research"],["dc.bibliographiccitation.lastpage","414"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Malinova, Vesna"],["dc.contributor.author","Stockhammer, Florian"],["dc.contributor.author","Atangana, Etienne Ndzie"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Rohde, Veit"],["dc.date.accessioned","2018-11-07T09:39:47Z"],["dc.date.available","2018-11-07T09:39:47Z"],["dc.date.issued","2014"],["dc.description.abstract","The optimal management of spontaneous intracerebral hemorrhage (ICH), especially if deep-seated, remains a matter of discussion. Lysis of the blood clot applying recombinant tissue-type plasminogen activator (rtPA) by an intrahematomal catheter is a minimally invasive treatment option, currently being under investigation in a randomized trial. The center position of the catheter in the hematoma is believed to be crucial for an optimal clot lysis. To achieve this objective, frame-based stereotaxy and frameless stereotaxy with guidance of an articulated arm were used. Recently, a preregistered stylet for direct navigation, alleviating the need of guidance, became available. In this study, we evaluated the relative error (RE) describing the deviation of the catheter from the ideal center position in the clot and compared the accuracy of catheter placement using frameless stereotaxy or the novel preregistered stylet. The intrahematomal catheter position was evaluated in three dimensions in 89 patients with spontaneous supratentorial ICH. Frameless stereotaxy with guidance of an articulated arm was performed in 50 patients. The preregistered stylet was used in 39 patients. The catheter position was evaluated using a RE calculating the distance perpendicular to the center of the catheter in relation to the hematoma's diameter. The mean hematoma volume was 51.4 ml. Forty-four out of 89 hematomas were deep-seated. Intraventricular blood was found in 59 patients. The RE of the catheter position was lower in the stylet group in comparison to the frameless stereotaxy group (mean 0.57 vs. 0.90; p = 0.0018). There was no difference between deep-seated and lobar hematomas with regard to the accuracy of catheter placement (p = 0.62). The RE is a robust measure for describing intrahematomal catheter position. The preregistered stylet facilitates a satisfactory catheter placement and is a viable alternative to frameless stereotaxy and guidance with the articulated arm."],["dc.identifier.doi","10.1007/s12975-014-0326-1"],["dc.identifier.isi","000336336200011"],["dc.identifier.pmid","24470086"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33363"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1868-601X"],["dc.relation.issn","1868-4483"],["dc.title","Catheter Placement for Lysis of Spontaneous Intracerebral Hematomas: Is a Navigated Stylet Better Than Pointer-Guided Frameless Stereotaxy for Intrahematomal Catheter Positioning?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article
    [["dc.bibliographiccitation.firstpage","2753"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Acta Neurochirurgica"],["dc.bibliographiccitation.lastpage","2758"],["dc.bibliographiccitation.volume","162"],["dc.contributor.author","Wessels, Lars"],["dc.contributor.author","Fekonja, Lucius Samo"],["dc.contributor.author","Achberger, Johannes"],["dc.contributor.author","Dengler, Julius"],["dc.contributor.author","Czabanka, Marcus"],["dc.contributor.author","Hecht, Nils"],["dc.contributor.author","Schneider, Ulf"],["dc.contributor.author","Tkatschenko, Dimitri"],["dc.contributor.author","Schebesch, Karl-Michael"],["dc.contributor.author","Schmidt, Nils Ole"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Hosch, Henning"],["dc.contributor.author","Ganslandt, Oliver"],["dc.contributor.author","Gräwe, Alexander"],["dc.contributor.author","Hong, Bujung"],["dc.contributor.author","Walter, Jan"],["dc.contributor.author","Güresir, Erdem"],["dc.contributor.author","Bijlenga, Philippe"],["dc.contributor.author","Haemmerli, Julien"],["dc.contributor.author","Maldaner, Nicolai"],["dc.contributor.author","Marbacher, Serge"],["dc.contributor.author","Nurminen, Ville"],["dc.contributor.author","Zitek, Hynek"],["dc.contributor.author","Dammers, Ruben"],["dc.contributor.author","Kato, Naoki"],["dc.contributor.author","Linfante, Italo"],["dc.contributor.author","Pedro, Maria-Teresa"],["dc.contributor.author","Wrede, Karsten"],["dc.contributor.author","Wang, Wei-Te"],["dc.contributor.author","Wostrack, Maria"],["dc.contributor.author","Vajkoczy, Peter"],["dc.date.accessioned","2021-04-14T08:23:35Z"],["dc.date.available","2021-04-14T08:23:35Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s00701-020-04565-6"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80973"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","0942-0940"],["dc.relation.issn","0001-6268"],["dc.title","Diagnostic reliability of the Berlin classification for complex MCA aneurysms—usability in a series of only giant aneurysms"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2015Journal Article
    [["dc.bibliographiccitation.artnumber","e009273"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","BMJ Open"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Giese, Henrik"],["dc.contributor.author","Sauvigny, Thomas"],["dc.contributor.author","Sakowitz, Oliver W."],["dc.contributor.author","Bierschneider, Michael"],["dc.contributor.author","Gueresir, Erdem"],["dc.contributor.author","Henker, Christian"],["dc.contributor.author","Hoehne, Julius"],["dc.contributor.author","Lindner, Dirk"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Pannewitz, Robert"],["dc.contributor.author","Rohde, Veit"],["dc.contributor.author","Scholz, Martin"],["dc.contributor.author","Schuss, Patrick"],["dc.contributor.author","Regelsberger, Jan"],["dc.date.accessioned","2018-11-07T10:02:48Z"],["dc.date.available","2018-11-07T10:02:48Z"],["dc.date.issued","2015"],["dc.description.abstract","Introduction: Owing to increasing numbers of decompressive craniectomies in patients with malignant middle cerebral artery infarction, cranioplastic surgery becomes more relevant. However, the current literature mainly consists of retrospective single-centre (evidence class III) studies. This leads to a wide variability of technical approaches and clinical outcomes. To improve our knowledge about the key elements of cranioplasty, which may help optimising clinical treatment and long-term outcome, a prospective multicentre registry across Germany, Austria and Switzerland will be established. Methods: All patients undergoing cranioplastic surgery in participating centres will be invited to join the registry. Technical methods, materials, medical history, adverse events and clinical outcome measures, including modified Rankin scale and EQ-5D, will be assessed at several time points. Patients will be accessible to inclusion either at initial decompressive surgery or when cranioplasty is planned. Scheduled monitoring will be carried out at time of inclusion and subsequently at time of discharge, if any readmission is necessary, and at follow-up presentation. Cosmetic results and patient satisfaction will also be assessed. Collected data will be managed and statistically analysed by an independent biometric institute. The primary endpoint will be mortality, need for operative revision and neurological status at 3 months following cranioplasty. Ethics and dissemination: Ethics approval was obtained at all participating centres. The registry will provide reliable prospective evidence on surgical techniques, used materials, adverse events and functional outcome, to optimise patient treatment. We expect this study to give new insights in the treatment of skull defects and to provide a basis for future evidence-based therapy regarding cranioplastic surgery."],["dc.description.sponsorship","IMBI"],["dc.identifier.doi","10.1136/bmjopen-2015-009273"],["dc.identifier.isi","000363484000093"],["dc.identifier.pmid","26423857"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12546"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38306"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Bmj Publishing Group"],["dc.relation.issn","2044-6055"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","German Cranial Reconstruction Registry (GCRR): protocol for a prospective, multicentre, open registry"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.journal","Translational Stroke Research"],["dc.contributor.author","Döring, Katja"],["dc.contributor.author","Schroeder, Henning"],["dc.contributor.author","Fischer, André"],["dc.contributor.author","Sperling, Swetlana"],["dc.contributor.author","Ninkovic, Milena"],["dc.contributor.author","Stadelmann, Christine"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Rohde, Veit"],["dc.contributor.author","Malinova, Vesna"],["dc.date.accessioned","2022-02-01T10:31:59Z"],["dc.date.available","2022-02-01T10:31:59Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract Cerebral vasospasm is a highly investigated phenomenon in neurovascular research. Experimental vasospasm models are irreplaceable for the evaluation of new antivasospastic drugs. In this study, we assessed the reliability of in vivo vasospasm induction by ultrasound application in the chicken chorioallantoic membrane (CAM) model. After incubation of fertilized chicken eggs for four days, a fenestration was performed to enable examination of the CAM vessels. On the thirteenth day, continuous-wave ultrasound (3 MHz, 1 W/cm 2 ) was applied on the CAM vessels for 60 s. The ultrasound effect on the vessels was recorded by life imaging (5-MP HD-microscope camera, Leica®). The induced vessel diameter changes were evaluated in a defined time interval of 20 min using a Fiji macro. The vessel diameter before and after sonication was measured and the relative diameter reduction was determined. A first reduction of vessel diameter was observed after three minutes with an average vessel-diameter decrease to 77%. The maximum reduction in vessel diameter was reached eight minutes after sonication with an average vessel diameter decrease to 57% (mean relative diameter reduction of 43%, range 44–61%), ANOVA, p  = 0.0002. The vasospasm persisted for all 20 recorded minutes post induction. Vasospasm can be reliably induced by short application of 3 MHz-ultrasound to the CAM vessels. This might be a suitable in vivo model for the evaluation of drug effects on vasospasm in an experimental setting as intermediary in the transition process from in vitro to in vivo assessment using animal models."],["dc.description.abstract","Abstract Cerebral vasospasm is a highly investigated phenomenon in neurovascular research. Experimental vasospasm models are irreplaceable for the evaluation of new antivasospastic drugs. In this study, we assessed the reliability of in vivo vasospasm induction by ultrasound application in the chicken chorioallantoic membrane (CAM) model. After incubation of fertilized chicken eggs for four days, a fenestration was performed to enable examination of the CAM vessels. On the thirteenth day, continuous-wave ultrasound (3 MHz, 1 W/cm 2 ) was applied on the CAM vessels for 60 s. The ultrasound effect on the vessels was recorded by life imaging (5-MP HD-microscope camera, Leica®). The induced vessel diameter changes were evaluated in a defined time interval of 20 min using a Fiji macro. The vessel diameter before and after sonication was measured and the relative diameter reduction was determined. A first reduction of vessel diameter was observed after three minutes with an average vessel-diameter decrease to 77%. The maximum reduction in vessel diameter was reached eight minutes after sonication with an average vessel diameter decrease to 57% (mean relative diameter reduction of 43%, range 44–61%), ANOVA, p  = 0.0002. The vasospasm persisted for all 20 recorded minutes post induction. Vasospasm can be reliably induced by short application of 3 MHz-ultrasound to the CAM vessels. This might be a suitable in vivo model for the evaluation of drug effects on vasospasm in an experimental setting as intermediary in the transition process from in vitro to in vivo assessment using animal models."],["dc.identifier.doi","10.1007/s12975-021-00960-y"],["dc.identifier.pii","960"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/98997"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-517"],["dc.relation.eissn","1868-601X"],["dc.relation.issn","1868-4483"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","In Vivo Vasospasm Induction by Ultrasound Application in the Chicken Chorioallantoic Membrane Model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Journal of Neurosurgery"],["dc.bibliographiccitation.lastpage","6"],["dc.contributor.author","Bettag, Christoph"],["dc.contributor.author","Hussein, Abdelhalim"],["dc.contributor.author","Schatlo, Bawarjan"],["dc.contributor.author","Barrantes-Freer, Alonso"],["dc.contributor.author","Abboud, Tammam"],["dc.contributor.author","Rohde, Veit"],["dc.contributor.author","Mielke, Dorothee"],["dc.date.accessioned","2022-06-01T09:39:47Z"],["dc.date.available","2022-06-01T09:39:47Z"],["dc.date.issued","2022"],["dc.description.abstract","OBJECTIVE Fluorescence-guided resection of cerebral metastases has been proposed as an approach to visualize residual tumor tissue and maximize the extent of resection. Critics have argued that tumor cells at the resection margins might be overlooked under microscopic visualization because of technical limitations. Therefore, an endoscope, which is capable of inducing fluorescence, has been applied with the aim of improving exposure of fluorescent tumor tissue. In this retrospective analysis, authors assessed the utility of endoscope assistance in 5-aminolevulinic acid (5-ALA) fluorescence–guided resection of brain metastases. METHODS Between June 2013 and December 2016, a standard 20-mg/kg dose of 5-ALA was administered 4 hours prior to surgery in 26 patients with suspected single brain metastases. After standard neuronavigated microsurgical tumor resection, a microscope capable of inducing fluorescence was used to examine tumor margins. The authors classified the remaining fluorescence into 3 grades (0 = none, 1 = weak, and 2 = strong). Endoscopic assistance was employed if no or only weak fluorescence was visualized at the resection margins under the microscope. Endoscopically identified fluorescent tissue at the margins was resected and evaluated separately via histological examination to prove or disprove tumor infiltration. RESULTS Under the microscope, weakly fluorescent tissue was seen at the margins of the resection cavity in 15/26 (57.7%) patients. In contrast, endoscopic inspection revealed strongly fluorescent tissue in 22/26 (84.6%) metastases. In 11/26 (42.3%) metastases no fluorescence at the tumor margins was detected by the microscope; however, strong fluorescence was visualized under the endoscope in 7 (63.6%) of these 11 metastases. In the 15 metastases with microscopically weak fluorescence, strong fluorescence was seen when using the endoscope. Neither microscopic nor endoscopic fluorescence was found in 4/26 (15.4%) cases. In the 26 patients, 96 histological specimens were obtained from the margins of the resection cavity. Findings from these specimens were in conjunction with the histopathological findings, allowing identification of metastatic infiltration with a sensitivity of 95.5% and a specificity of 75% using endoscope assistance. CONCLUSIONS Fluorescence-guided endoscope assistance may overcome the technical limitations of the conventional microscopic exposure of 5-ALA–fluorescent metastases and thereby increase visualization of fluorescent tumor tissue at the margins of the resection cavity with high sensitivity and acceptable specificity."],["dc.identifier.doi","10.3171/2022.3.JNS212301"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108564"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1933-0693"],["dc.relation.issn","0022-3085"],["dc.title","Endoscope-assisted visualization of 5-aminolevulinic acid fluorescence in surgery for brain metastases"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article
    [["dc.bibliographiccitation.firstpage","2069"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Acta Neurochirurgica"],["dc.bibliographiccitation.lastpage","2074"],["dc.bibliographiccitation.volume","162"],["dc.contributor.author","Hernández-Durán, Silvia"],["dc.contributor.author","Zafar, Noman"],["dc.contributor.author","Behme, Daniel"],["dc.contributor.author","Momber, Matthias"],["dc.contributor.author","Rohde, Veit"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Fiss, Ingo"],["dc.date.accessioned","2021-06-01T10:49:15Z"],["dc.date.available","2021-06-01T10:49:15Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s00701-020-04453-z"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86220"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","0942-0940"],["dc.relation.issn","0001-6268"],["dc.title","Volumetric analysis of bilateral spinal canal decompression via hemilaminectomy versus laminoplasty in cervical spondylotic myelopathy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article
    [["dc.bibliographiccitation.journal","Ophthalmology Retina"],["dc.contributor.author","Lauermann, Peer"],["dc.contributor.author","Klingelhöfer, Anthea"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","van Oterendorp, Christian"],["dc.contributor.author","Hoerauf, Hans"],["dc.contributor.author","Striebe, Nina-Antonia"],["dc.contributor.author","Storch, Marcus Werner"],["dc.contributor.author","Pfeiffer, Sebastian"],["dc.contributor.author","Koscielny, Juergen"],["dc.contributor.author","Feltgen, Nicolas"],["dc.date.accessioned","2021-06-01T10:49:52Z"],["dc.date.available","2021-06-01T10:49:52Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1016/j.oret.2021.04.013"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86440"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.issn","2468-6530"],["dc.title","Risk factors for Severe Bleeding Complications in Vitreoretinal Surgery and the Role of Antiplatelet or Anticoagulant Agents"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article Research Paper
    [["dc.bibliographiccitation.journal","Frontiers in Neurology"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Abboud, Tammam"],["dc.contributor.author","Mielke, Dorothee"],["dc.contributor.author","Rohde, Veit"],["dc.date.accessioned","2022-04-01T10:03:16Z"],["dc.date.available","2022-04-01T10:03:16Z"],["dc.date.issued","2022"],["dc.description.abstract","Impedance measurement of human tissue can be performed either in vivo or ex vivo . The majority of the in-vivo approaches are non-invasive, and few are invasive. To date, there is no gold standard for impedance measurement of intracranial tissue. In addition, most of the techniques addressing this topic are still experimental and have not found their way into clinical practice. This review covers available impedance measurement approaches in the neuroscience in general and specifically addresses recent advances made in the application of impedance measurement in the field of surgical neurooncology. It will provide an understandable picture on impedance measurement and give an overview of limitations that currently hinders clinical application and require future technical and conceptual solutions."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2022"],["dc.identifier.doi","10.3389/fneur.2021.825012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/106126"],["dc.notes.intern","DOI-Import GROB-530"],["dc.relation.eissn","1664-2295"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Mini Review: Impedance Measurement in Neuroscience and Its Prospective Application in the Field of Surgical Neurooncology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","84"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Neurosurgery"],["dc.bibliographiccitation.lastpage","90"],["dc.bibliographiccitation.volume","129"],["dc.contributor.author","Malinova, Vesna"],["dc.contributor.author","Schatlo, Bawarjan"],["dc.contributor.author","Voit, Martin"],["dc.contributor.author","Suntheim, Patricia"],["dc.contributor.author","Rohde, Veit"],["dc.contributor.author","Mielke, Dorothee"],["dc.date.accessioned","2020-12-10T18:44:04Z"],["dc.date.available","2020-12-10T18:44:04Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.3171/2017.3.JNS162505"],["dc.identifier.eissn","1933-0693"],["dc.identifier.issn","0022-3085"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78317"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","The impact of temporary clipping during aneurysm surgery on the incidence of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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