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https://www.readbyqxmd.com/read/29141045/csf-in-the-ventricles-of-the-brain-behaves-as-a-relay-medium-for-arteriovenous-pulse-wave-phase-coupling
#1
William E Butler, Pankaj K Agarwalla, Patrick Codd
The ventricles of the brain remain perhaps the largest anatomic structure in the human body without established primary purpose, even though their existence has been known at least since described by Aristotle. We hypothesize that the ventricles help match a stroke volume of arterial blood that arrives into the rigid cranium with an equivalent volume of ejected venous blood by spatially configuring cerebrospinal fluid (CSF) to act as a low viscosity relay medium for arteriovenous pulse wave (PW) phase coupling...
2017: PloS One
https://www.readbyqxmd.com/read/29133004/neuroendoscopic-treatment-of-cystic-craniopharyngiomas-a-case-series-with-systematic-review-of-the-literature
#2
Liverana Lauretti, Francois Yves Legninda Sop, Roberto Pallini, Eduardo Fernandez, Quintino Giorgio D'Alessandris
BACKGROUND: Total removal of craniopharyngiomas is burdened by high morbidity. In cases of a cystic or mixed craniopharyngioma, when the symptoms are caused by the cystic component of the tumor, a less invasive surgical approach aiming at cyst drainage may be recommended. Here we report our experience with intraventricular neuroendoscopy, describing our clear-cut surgical technique, and analyzing results in the context of literature data. METHODS: We reviewed the clinical data of 8 consecutive adult patients affected by cystic or mixed craniopharyngioma that were treated with intraventricular neuroendoscopy at our Institution in the last decade...
November 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29124389/dry-field-maneuver-for-controlling-the-massive-intraventricular-bleeding-during-neuroendoscopic-procedures
#3
Tuncer Turhan
PURPOSE: Massive hemorrhages pose a significant problem in intraventricular endoscopic surgeries. These hemorrhages have the potential to cause mortality and morbidity, particularly in excisional surgeries. Often, the bleeding can be controlled only by cauterization and liquid irrigation, due to the incongruity of the use of antihemorrhagic agents in the fluid. The final option to stop the massive bleeding is the dry-field maneuver. In this study, the effects and clinical results of the dry-field maneuver in bleeding control of a massive bleeding were investigated...
November 9, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29115098/the-subependymal-microvascular-network-revealed-by-endoscopic-fluorescence-angiography
#4
Pierluigi Longatti, Alessandro Boaro, Giuseppe Canova, Alessandro Fiorindi
BACKGROUND: The subependymal vascularization of the cerebral ventricles has been described in anatomical studies on human specimens. Its identification in vivo during neuroendoscopic navigation could have anatomical interest and may lead to a safer ventricular navigation, also avoiding unexpected bleeding. The traditional endoscopic visualization allows the certain identification of only the main vessels. In this study we describe the features of the subependymal vascular network (SEVN) enhanced by sodium fluorescein (SF) angiography...
November 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29069046/analysis-of-three-surgical-treatments-for-spontaneous-supratentorial-intracerebral-hemorrhage
#5
Qiang Cai, Huaping Zhang, Dong Zhao, Zhaohui Yang, Keqi Hu, Long Wang, Wenfei Zhang, Zhibiao Chen, Qianxue Chen
This retrospective study aimed to evaluate the effectiveness and safety of 3 surgical procedures for Spontaneous Supratentorial Intracerebral Hemorrhage (SICH).A total of 63 patients with SICH were randomized into 3 groups. Group A (n = 21) underwent craniotomy surgery, group B (n = 22) underwent burr hole, urokinase infusion and catheter drainage, and group C (n = 20) underwent neuroendoscopic surgery. The hematoma evacuation rate of the operation was analyzed by 3D Slice software and the average surgery time, visualization during operation, decompressive effect, mortality, Glasgow Coma Scale (GCS) improvement, complications include rebleeding, pneumonia, intracranial infection were also compared among 3 groups...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29066241/neuroendoscopic-evacuation-of-intraventricular-empyema-using-a-side-cutting-aspiration-device
#6
Min Lang, Ghaith Habboub, Nina Z Moore, Violette M R Recinos, Alireza M Mohammadi, Sean Nagel, Adarsh Bhimraj, Danilo Silva, Pablo F Recinos
Pyogenic ventriculitis is a rare but severe post-neurosurgical complication. The infection is often resistant to antibiotic treatment alone. Continuous intraventricular irrigation has been suggested but the technique is cumbersome, increases the risk for secondary infection, and is inadequate in removing adherent purulence. We used a novel neuroendoscopic approach assisted with a side-cutting aspiration device to treat four cases of post-neurosurgical pyogenic ventriculitis. Ventricular empyema was cleared in all patients and three of the four patients had favorable outcomes...
October 21, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29049148/skull-base-neuroendoscopic-training-model-using-a-fibrous-injectable-tumor-polymer-and-the-nico-myriad
#7
Filippo Gagliardi, Anthony M Chau, Pietro Mortini, Anthony J Caputy, Cristian Gragnaniello
The Myriad is an innovative, high precision tool for tumor resection, designed to work within narrow endoscopic corridors. Due to its application in technically demanding situations, the learning curve associated with its use might be extremely challenging and time-consuming.The authors describe the application of an already validated training model, the skull base injectable tumor model (ITM), to allow trainees to practice with the use of the Myriad during endoscopic skull base procedures.A formalin embalmed cadaveric head was used for technical assessment...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29030495/intracavitary-ultrasound-icarus-a-neuroendoscopic-adaptation-of-intravascular-ultrasound-for-intracerebral-hemorrhage-evacuation
#8
Alexander G Chartrain, Danny Hom, Joshua B Bederson, J Mocco, Christopher Paul Kellner
Neurosurgeons performing intracerebral hemorrhage evacuation procedures have limited options for monitoring hematoma evacuation and assessing residual hematoma burden intraoperatively. Here, we report the successful neuroendoscopic adaptation of intravascular ultrasound, referred to here as intracavitary ultrasound (ICARUS), in two patients. Pre-evacuation ICARUS demonstrated dense hematomas in both patients. Post-evacuation ICARUS in patient 1 demonstrated significant reduction in clot burden and two focal hyperechoic regions consistent with pockets of hematoma not previously seen with the endoscope or burr hole ultrasound...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29026668/fourth-ventricle-neurocysticercosis-rigid-endoscopic-management-description-of-direct-transcerebellar-approach
#9
A Ceja-Espinosa, J A Franco-Jiménez, A Sosa-Nájera, G A Gutiérrez-Aceves, M I Ruiz-Flores
BACKGROUND: Endoscopy has gained a crucial role in high specialty neurosurgery during the last decades. At present, there are well-defined flexible neuroendoscopic procedures to treat ventricular and subarachnoid space pathologies. Neurocysticercosis is recognized as a common cause of neurologic disease in developing countries and the United States. Surgical intervention, especially cerebrospinal fluid diversion, is the key for management of hydrocephalus. In 2002, a consensus suggested that ventricular forms should be treated with endoscopy as the first option...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28992727/neuroendoscopic-and-histopathological-correlation-in-13-cases-of-cystic-fluid-filled-brain-tumours
#10
Oh Jimenez-Vazquez, Norma Nagore
Neuroendoscopical images of fluid-filled cavity walls within encephalic tumours in thirteen adult patients were correlated with histopathology results of samples harvested during surgery. Extensive vascular proliferation, with mesh-like formations in a 3D pattern, as well as onionskin appearance, were observed in malignant tumours, as opposed to normal or slightly increased vascular pattern, observed in benign neoplasms. Medical facilities lacking sufficient technical resources where limited pathologist experience is expected, and can be associated with intraoperative histological misdiagnosis...
October 9, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28984539/the-importance-of-extent-of-choroid-plexus-cauterization-in-addition-to-endoscopic-third-ventriculostomy-for-infantile-hydrocephalus-a-retrospective-north-american-observational-study-using-propensity-score-adjusted-analysis
#11
Aria Fallah, Alexander G Weil, Kyle Juraschka, George M Ibrahim, Anthony C Wang, Louis Crevier, Chi-Hong Tseng, Abhaya V Kulkarni, John Ragheb, Sanjiv Bhatia
OBJECTIVE Combined endoscopic third ventriculostomy (ETC) and choroid plexus cauterization (CPC)-ETV/CPC- is being investigated to increase the rate of shunt independence in infants with hydrocephalus. The degree of CPC necessary to achieve improved rates of shunt independence is currently unknown. METHODS Using data from a single-center, retrospective, observational cohort study involving patients who underwent ETV/CPC for treatment of infantile hydrocephalus, comparative statistical analyses were performed to detect a difference in need for subsequent CSF diversion procedure in patients undergoing partial CPC (describes unilateral CPC or bilateral CPC that only extended from the foramen of Monro [FM] to the atrium on one side) or subtotal CPC (describes CPC extending from the FM to the posterior temporal horn bilaterally) using a rigid neuroendoscope...
October 6, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28978177/binostril-endoscopic-transsphenoidal-neurosurgery-for-pituitary-adenomas-experience-with-42-patients
#12
Guan Sun, Ying Cao, Nan Jiang, Dekang Nie, Zhengqiang Wan, Min Li, Chiyuan Ma, Jun Guo
Here we review the technical aspects of our experience with the neuroendoscopic bilateral nostril (binostril) transsphenoidal approach for pituitary adenomas. A total of 42 patients were treated in our hospital from September 2013 to December 2015. Total tumor resection was completed in 31 cases, nearly full resection was achieved in 9 cases, and partial resection was achieved in 2 cases. In most cases clinical symptoms were relieved after surgery. These included 18/22 cases with visual field and vision disorders; 19/25 cases with headaches; 11/15 cases where high baseline PRL returned to normal levels; 6/7 cases where elevated blood GH returned to normal levels; and 2/3 cases where elevated blood ACTH returned to normal levels after surgery...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28959202/a-58-year-old-male-with-cognitive-deteriorations-caused-by-septum-pellucidum-cyst-a-case-report
#13
Li-Ming Chen, Ming-Xin Zhu, Yu-Fen Zhang, Se-Hui Ma, Yao Yi, Lie-Xin Xia, Yan Wu, Lei Pei
Dementia is known to be induced by vascular dementia and certain neurodegenerative diseases. The presenting features of disordered memory, intellect and personality often result in referral to a neurologist initially. Septum pellucidum cyst (SPC) is a rare clinical finding and defined as a cystic structure between the lateral ventricles. SPC induced memory disorder and dementia has been seldom reported in which the clinical features are atypical and can be misdiagnosed. The main difficulty is to establish a correlation between symptoms and the cyst...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28931250/minimally-invasive-transpalpebral-endoscopic-assisted-amygdalohippocampectomy
#14
Mauricio Mandel, Eberval Gadelha Figueiredo, Suzana Abramovicz Mandel, Rafael Tutihashi, Manoel Jacobsen Teixeira
BACKGROUND: Although anterior temporal lobectomy may be a definitive surgical treatment for epileptic patients with mesial temporal sclerosis, it often results in verbal, visual, and cognitive dysfunction. Studies have consistently reported the advantages of selective procedures compared with a standard anterior temporal lobectomy, mainly in terms of neuropsychological outcomes. OBJECTIVE: To describe a new technique to perform a selective amygdalohippocampectomy (SAH) through a transpalpebral approach with endoscopic assistance...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931248/validity-evidence-for-the-neuro-endoscopic-ventriculostomy-assessment-tool-nevat
#15
Gerben E Breimer, Faizal A Haji, Giuseppe Cinalli, Eelco W Hoving, James M Drake
BACKGROUND: Growing demand for transparent and standardized methods for evaluating surgical competence prompted the construction of the Neuro-Endoscopic Ventriculostomy Assessment Tool (NEVAT). OBJECTIVE: To provide validity evidence of the NEVAT by reporting on the tool's internal structure and its relationship with surgical expertise during simulation-based training. METHODS: The NEVAT was used to assess performance of trainees and faculty at an international neuroendoscopy workshop...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927916/results-of-combined-intraventricular-neuroendoscopic-procedures-in-130-cases-with-special-focus-on-fornix-contusions
#16
Joachim Oertel, Stefan Linsler, Caroline Emmerich, Dörthe Keiner, Michael Gaab, Henry Schroeder, Sebastian Senger
OBJECTIVE: The growing experience with intraventricular neuroendoscopic procedures showed good results in the combination of ETV and tumor biopsy. Other possible combinations are mainly presented in subgroups in the literature. Here, the authors present their experience with combined intraventricular procedures within one setting over the last two decades. METHODS: This study analyses retrospectively data from neuroendoscopic intraventricular procedures between 1993 and 2015 in three different departments of Neurosurgery...
September 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28927212/fluorescein-guided-neuroendoscopy-for-intraventricular-lesions-a-case-series
#17
Alessandro Fiorindi, Alessandro Boaro, Giulia Del Moro, Pierluigi Longatti
BACKGROUND: The benefits of neuroendoscopy in the pathological diagnosis of intra- and paraventricular tumors have already been shown in many neurosurgical studies. However, most authors agree that neuroendoscopic biopsies are not infrequently inconclusive due to small or inadequate samples, prompting the need for new diagnostic strategies. OBJECTIVE: To describe a technique not previously reported in the literature, combining neuroendoscopy with angiofluorescein guidance for the pathological diagnosis of intra- and paraventricular tumors...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28886982/management-of-epilepsy-due-to-hypothalamic-hamartomas
#18
REVIEW
Ayaz M Khawaja, Sandipan Pati, Yu-Tze Ng
A hypothalamic hamartoma consists of hyperplastic heterotopic tissue growing in a disorganized fashion. These lesions occur in about one per 50,000 to 100,000 people. Hypothalamic hamartomas can cause intrinsic epileptogenesis leading to gelastic seizures. Surrounding cortical structures may also develop secondary epileptogenesis. Persistent seizures caused by hypothalamic hamartomas can be debilitating and result in significant cognitive and behavioral impairment. Early recognition and treatment is important in controlling seizures and in preventing further cognitive deterioration...
July 5, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28858100/comparison-of-neuroendoscopic-surgery-and-craniotomy-for-supratentorial-hypertensive-intracerebral-hemorrhage-a-meta-analysis
#19
Zengpanpan Ye, Xiaolin Ai, Xin Hu, Fang Fang, Chao You
BACKGROUND: In recent years, neuroendoscopy has been used as a method for treating intracerebral hemorrhages (ICHs). However, the efficacy and safety of neuroendoscopic surgery is still controversial compared with that of craniotomy. Our aim was to compare the outcomes of neuroendoscopic surgery and craniotomy in patients with supratentorial hypertensive ICH using a meta-analysis. METHODS: We searched on PubMed, EMBASE, and Cochrane Central Register of Controlled Trials to identify relevant studies in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28763886/-application-of-neuroendoscope-combined-with-minimal-access-for-elderly-patients-with-idiopathic-trigeminal-neuralgia-in-enhanced-recovery-after-surgery-of-microvascular-decompression
#20
C F Li, N Wu, H Z Wang, J F Zhang, G Q Wu, L Li
Objective: To explore the value of neuroendoscope and minimal-access in enhanced recovery after surgery of microvascular decompression (MVD) for treatment elderly patients with idiopathic trigeminal neuralgia (ITN). Methods: The clinical data of 62 elderly patients with ITN who undergoing neuroendoscope-assisted minimal-access microvascular decompression were analyzed retrospectively, including operative data and follow-up results. Results: In 62 cases, the effective rate was 96.8%, with 88.7% complete cure and 8...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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