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Stereotactic and Functional Neurosurgery

journal
https://www.readbyqxmd.com/read/30404102/re-irradiation-with-stereotactic-radiosurgery-radiotherapy-for-recurrent-high-grade-gliomas-improved-survival-in-the-modern-era
#1
Michael J Gigliotti, Shaakir Hasan, Stephen M Karlovits, Tulika Ranjan, Rodney E Wegner
OBJECTIVE: The aim of this study was to evaluate the efficacy of stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (fSRT) as salvage therapy for recurrent high-grade glioma and to look at the overall efficacy of treatment with linear accelerator (LINAC)-based radiosurgery and fractionated radiotherapy. METHODS: From 2010 to 2017, a total of 25 patients aged 23-74 years were re-irradiated with LINAC-based SRS and fSRT. Patients were treated to a median dose of 25 Gy in 5 fractions...
November 7, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30404100/outcome-of-internal-neurolysis-for-trigeminal-neuralgia-without-neurovascular-compression-and-its-relationship-with-intraoperative-trigeminocardiac-reflex
#2
Min Wu, Xiaofeng Jiang, Chaoshi Niu, Xianming Fu
BACKGROUND: Internal neurolysis (IN) is an effective surgical treatment for trigeminal neuralgia (TN) without neurovascular compression (NVC) or postoperative recurrence. However, the trigeminal nerve is directly manipulated during the procedure, and there is a high incidence of trigeminocardiac reflex (TCR). The aim of this study was to retrospectively analyze the outcome of IN and to explore its relationship with the occurrence of intraoperative TCR. METHODS: Surgical and anesthesia records of 27 TN patients who underwent surgical treatment with IN at our department between March 2010 and September 2016 were retrospectively analyzed...
November 7, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30326475/safety-and-utility-of-hybrid-depth-electrodes-for-seizure-localization-and-single-unit-neuronal-recording
#3
April A Carlson, Ueli Rutishauser, Adam N Mamelak
BACKGROUND: Invasive electrode monitoring provides more precise localization of epileptogenic foci in patients with medically refractory epilepsy. The use of hybrid depth electrodes that include microwires for simultaneous single-neuron monitoring is becoming more widespread. OBJECTIVE: To determine the safety and utility of hybrid depth electrodes for intracranial monitoring of medically refractory epilepsy. METHODS: We reviewed the medical charts of 53 cases of medically refractory epilepsy operated on from 2006 to 2017, where both non-hybrid and hybrid microwire depth electrodes were used for intracranial monitoring...
October 16, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30304735/localisation-of-dbs-electrodes-post-implantation-to-ct-or-mri-which-is-the-best-option
#4
LETTER
Jonathan R Ellenbogen, Ruth Tuura, Keyoumars Ashkan
No abstract text is available yet for this article.
October 10, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30278436/laitinen-s-subgenual-cingulotomy-anatomical-location-and-case-report
#5
Antti Huotarinen, Riku Kivisaari, Marwan Hariz
BACKGROUND: The widespread use of deep brain stimulation (DBS) for movement disorders has renewed the interest in DBS for psychiatric disorders. Lauri Laitinen was a pioneer of stereotactic psychosurgery in the 1950s to 1970s, especially by introducing the subgenual cingulotomy. Our aim here was to verify the anatomical target used by Laitinen, to report on a patient who underwent this procedure, and to review the literature. MATERIALS AND METHODS: The records of Helsinki University Hospital were searched for psychosurgical cases performed between 1970 and 1974...
October 2, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30269142/prediction-of-electrode-contacts-for-clinically-effective-deep-brain-stimulation-in-essential-tremor
#6
Mattias Åström, Jennifer Samuelsson, Jonas Roothans, Anders Fytagoridis, Maxim Ryzhkov, Rutger Nijlunsing, Patric Blomstedt
BACKGROUND/AIM: Deep brain stimulation (DBS) is an established neurosurgical treatment that can be used to alleviate symptoms in essential tremor (ET) and other movement disorders. The aim was to develop a method and software tool for the prediction of effective DBS electrode contacts based on probabilistic stimulation maps (PSMs) in patients with ET treated with caudal zona incerta (cZi) DBS. METHODS: A total of 33 patients (37 leads) treated with DBS were evaluated with the Essential Tremor Rating Scale (ETRS) 12 months after surgery...
September 28, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30227440/combined-unilateral-posteroventral-pallidotomy-and-ventral-intermediate-nucleus-thalamotomy-in-tremor-dominant-parkinson-apos-s-disease-versus-posteroventral-pallidotomy-alone-a-prospective-comparative-study
#7
Zeiad Y Fayed, Hesham Radwan, Mohamed Aziz, Mohamed Eid, Alia H Mansour, Mohamed Nosseir, Hisham Anwer, Tarek Elserry, Walid A Abdel Ghany
BACKGROUND: The optimum target in surgery for Parkinson's disease (PD) is still controversial, especially in patients with tremor-dominant PD. We aim to compare results in tremor-dominant patients undergoing pallidotomy vs. those undergoing simultaneous posteroventral pallidotomy (PVP) and ventral intermediate nucleus (VIM) thalamotomy. METHODS: Twenty-four patients with tremor-dominant PD were included in this study. Twelve patients received unilateral PVP contralateral to the most affected side...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30196280/propofol-anesthesia-precludes-lfp-based-functional-mapping-of-pallidum-during-dbs-implantation
#8
Mahsa Malekmohammadi, Hiro Sparks, Nicholas AuYong, Andrew Hudson, Nader Pouratian
BACKGROUND/AIMS: There are reports that microelectrode recording (MER) can be performed under certain anesthetized conditions for functional confirmation of the optimal deep brain stimulation (DBS) target. However, it is generally accepted that anesthesia affects MER. Due to a potential role of local field potentials (LFPs) in DBS functional mapping, we characterized the effect of propofol on globus pallidus interna (GPi) and externa (GPe) LFPs in Parkinson disease (PD) patients. METHODS: We collected LFPs in 12 awake and anesthetized PD patients undergoing DBS implantation...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30184552/telemedical-deep-brain-stimulation-merits-and-limitations
#9
LETTER
Chencheng Zhang, Yingying Zhang, Shikun Zhan, Dianyou Li, Haiyan Jin, Damiaan Denys, Bomin Sun
No abstract text is available yet for this article.
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30176664/electrode-penetration-of-the-caudate-nucleus-in-deep-brain-stimulation-surgery-for-parkinson-s-disease
#10
Maarten Bot, Pepijn van den Munckhof, Ben A Schmand, Rob M A de Bie, P Richard Schuurman
OBJECTIVE: To evaluate the possible influence of electrode trajectories penetrating the caudate nucleus (CN) on cognitive outcomes in deep brain stimulation (DBS) surgery for Parkinson's disease (PD). BACKGROUND: It is currently unclear how mandatory CN avoidance during trajectory planning is. DESIGN/METHODS: Electrode trajectories were determined to be inside, outside, or in border region of the CN. Pre- and postoperative neuropsychological tests of each trajectory group were compared in order to evaluate possible differences in cognitive outcomes 12 months after bilateral STN DBS...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30153687/safe-stereotactic-biopsy-for-basal-ganglia-lesions-avoiding-injury-to-the-basal-perforating-arteries
#11
Sumito Sato, Mitsuru Dan, Hirofumi Hata, Kazuhiro Miyasaka, Mitsuto Hanihara, Ichiyo Shibahara, Yusuke Inoue, Toshihiro Kumabe
BACKGROUND: One of the most serious complications of stereotactic biopsy is postoperative symptomatic hemorrhage due to injury to the basal perforating arteries such as the lenticulostriate arteries neighboring the basal ganglia lesions. OBJECTIVES: A new target-planning method was proposed to reduce hemorrhagic complications by avoiding injury to the perforating arteries. METHODS: Three-dimensional 3-T time-of-flight (3D 3-T TOF) imaging was applied to delineate the basal perforating arteries such as the lenticulostriate arteries...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30153676/globus-pallidus-internal-deep-brain-stimulation-in-a-patient-with-neuroacanthocytosis-with-drug-induced-parkinsonism
#12
LETTER
Paresh Doshi, Nikhil Chamankar
No abstract text is available yet for this article.
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30149389/a-comparison-of-vagal-nerve-stimulation-and-responsive-neurostimulation-for-the-treatment-of-medically-refractory-complex-partial-epilepsy
#13
Nathaniel R Ellens, Kost Elisevich, David E Burdette, Sanjay E Patra
BACKGROUND: Neuromodulatory applications such as vagus nerve stimulation (VNS) and responsive neurostimulation (RNS) are safe and effective strategies for medically intractable epilepsy secondary to complex partial seizures, but researchers have yet to compare their efficacies. OBJECTIVE: The goal of this study is to compare VNS and RNS efficacy at reducing seizure frequency and complication rates in subjects with medically intractable epilepsy secondary to complex partial seizures...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30145596/accuracy-of-microelectrode-trajectory-adjustments-during-dbs-assessed-by-intraoperative-ct
#14
Sander Bus, Gian Pal, Bichun Ouyang, Pepijn van den Munckhof, Maarten Bot, Sepehr Sani, Leo Verhagen Metman
BACKGROUND/AIMS: Microelectrode recording (MER)-guided deep brain stimulation (DBS) aims to place the DBS lead in the optimal electrophysiological target. When single-track MER or test stimulation yields suboptimal results, trajectory adjustments are made. The accuracy of these trajectory adjustments is unknown. Intraoperative computed tomography can visualize the microelectrode (ME) and verify ME adjustments. We aimed to determine the accuracy of ME movements in patients undergoing MER-guided DBS...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30134250/expected-fate-of-radiofrequency-lesioning-a-silent-death-or-a-cold-blooded-murder
#15
LETTER
Manjul Tripathi, Tipu Zahed Aziz
No abstract text is available yet for this article.
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30125888/motor-cortex-stimulation-therapy-for-relief-of-central-post-stroke-pain-a-retrospective-study-with-neuropathic-pain-symptom-inventory
#16
Xiaolei Zhang, Hongwei Zhu, Wei Tao, Yongjie Li, Yongsheng Hu
BACKGROUND: Motor cortex stimulation (MCS) has been used in the treatment of chronic neuropathic pain for more than 25 years. However, the mechanisms and outcome predictors still represent major challenges. OBJECTIVES: To investigate outcome predictors and potential mechanisms of MCS on central post-stroke pain (CPSP). MATERIAL AND METHODS: 16 CPSP patients were analyzed at our center. The pain intensity was assessed using a visual analog scale (VAS) before surgery and at the last follow-up...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30110703/nanoparticle-mediated-upconversion-of-near-infrared-light-a-step-closer-to-optogenetic-neuromodulation-in-humans
#17
LETTER
David Bergeron
No abstract text is available yet for this article.
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30064130/long-term-results-of-deep-brain-stimulation-of-the-mamillotegmental-fasciculus-in-chronic-cluster-headache
#18
Fernando Seijo-Fernandez, Antonio Saiz, Elena Santamarta, Lydia Nader, Marco Antonio Alvarez-Vega, Beatriz Lozano, Elisa Seijo, Juan A Barcia
BACKGROUND: Deep brain stimulation (DBS) and the proper target for chronic cluster headache (CCH) are still subjects of controversy. OBJECTIVES: We present our long-term results of analysis of the target and its structural connectivity. METHODS: Fifteen patients with drug-resistant CCH underwent DBS in coordinates 4 mm lateral to the III ventricular wall and 2 mm behind and 5 mm below the intercommissural point. The clinical parameters recorded were the number of weekly attacks, pain intensity, and duration of the headache...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30045032/spinal-cord-stimulation-combined-with-anterior-cingulotomy-to-manage-refractory-phantom-limb-pain
#19
Zhengdao Deng, Dianyou Li, Shikun Zhan, Chencheng Zhang, Peng Huang, Yuhao Sun, YiXin Pan, Xiaoxiao Zhang, Wei Liu, Bomin Sun
BACKGROUND: Phantom limb pain (PLP) is an intractable and debilitating disease without satisfactory treatment options presently available. Central reorganization, peripheral changes, and psychiatric factors contribute to its development; thus, a neuropsychiatry-orientated combined therapy could be promising. OBJECTIVES: We used a combined strategy with the aims of demonstrating its therapeutic outcomes on PLP. METHODS: The patient initially received spinal cord stimulation (SCS) implantation and then anterior cingulotomy (ACING) 2 years later...
2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/30045031/a-case-of-symptomatic-granular-cell-tumor-of-the-pituitary-treated-with-stereotactic-radiosurgery
#20
Andrew Faramand, Hideyuki Kano, John C Flickinger, Paul Gardner, L Dade Lunsford
BACKGROUND: Granular cell tumors (GCT) of the pituitary are rare. Surgery is considered the primary management option. However, complete resection is often difficult, and surgery is associated with high rates of postoperative complications. AIMS: To report a unique case of pituitary GCT treated with stereotactic radiosurgery (SRS). CASE DESCRIPTION: We report a case of a 40-year-old female with endocrine dysfunction who underwent stereotactic biopsy and then SRS for the management of a suprasellar granular cell tumor...
2018: Stereotactic and Functional Neurosurgery
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