Journals Stereotactic and Functional Ne...

Stereotactic and Functional Neurosurgery
Aisha Alkubaisi, Charles C J Dong, Christopher R Honey
The vagus nerve has motor, sensory, and parasympathetic components. Understanding the nerve's internal anatomy, its variations, and relationship to the glossopharyngeal nerve are crucial for neurosurgeons decompressing the lower cranial nerves. We present a case report demonstrating the location of the parasympathetic fibres within the vagus nerve rootlets. A 47-year-old woman presented with a 1-year history of medically refractory left-sided glossopharyngeal neuralgia and a more recent history of left-sided hemi-laryngopharyngeal spasm...
December 29, 2022: Stereotactic and Functional Neurosurgery
Phillip M Johansen, Frank A Trujillo, Vivian Hagerty, Tessa Harland, Gregory Davis, Julie G Pilitsis
INTRODUCTION: As one of the most common medical conditions for which patients seek medical care, chronic pain can be debilitating. The relationship between chronic pain and sleep is thought to be bidirectional, suggesting that treatment of one can be beneficial to the other. There is mounting evidence that spinal cord stimulation (SCS) improves aspects of sleep. How meaningful that is to patients' lives has not been ascertained. OBJECTIVE: The aim of the current study was to further elucidate the effect of SCS on sleep by examining the relationship between pain outcome measures with the insomnia severity index (ISI) and to establish the minimally clinical important difference (MCID), which is defined as the smallest noticeable change that an individual perceives as clinically significant...
December 27, 2022: Stereotactic and Functional Neurosurgery
Noa B Nuzov, Bhumi Bhusal, Kaylee R Henry, Fuchang Jiang, Jasmine Vu, Joshua M Rosenow, Julie G Pilitsis, Behzad Elahi, Laleh Golestanirad
INTRODUCTION: Deep brain stimulation (DBS) is a common treatment for a variety of neurological and psychiatric disorders. Recent studies have highlighted the role of neuroimaging in localizing the position of electrode contacts relative to target brain areas in order to optimize DBS programming. Among different imaging methods, postoperative magnetic resonance imaging (MRI) has been widely used for DBS electrode localization; however, the geometrical distortion induced by the lead limits its accuracy...
December 16, 2022: Stereotactic and Functional Neurosurgery
Alexandra Boogers, Tine Van Bogaert, Jana Peeters, Ugur Kilic, Stefan Sunaert, Wim Vandenberghe, Myles Mc Laughlin, Philippe De Vloo, Bart Nuttin
Deep brain stimulation is an established treatment option for both essential tremor (ET) and Parkinson's disease (PD), although typically targeting different brain structures. Some patients are diagnosed with comorbid ET and PD. Selecting the optimal stimulation target in these patients is challenging. We present a patient with comorbid ET and PD in whom we used bilaterally a single parietal trajectory to align the dentato-rubro-thalamic tract and the subthalamic nucleus. Although parietal trajectories are challenging, we reached satisfactory outcomes for both conditions without complications...
November 29, 2022: Stereotactic and Functional Neurosurgery
Adriana Lucia López Ríos, Jürgen Germann, William D Hutchison, Luis Fernando Botero Posada, Luisa Fernanda Ahunca Velasquez, Francisco Aureliano Garcia Jimenez, José Miguel Gloria Escobar, Raquel Chacon Ruiz Martinez, Clement Hamani, Ivo Lebrun, Aline V V Auada, Carlos Anibal Restrepo Bravo, Flavia Venetucci Gouveia
Posterior hypothalamic-deep brain stimulation (pHyp-DBS) has been reported as a successful treatment for reducing refractory aggressive behaviors in patients with distinct primary diagnoses. Here, we report on a patient with cri du chat syndrome presenting severe self-injury and aggressive behaviors toward others, who was treated with pHyp-DBS. Positive results were observed at long-term follow-up in aggressive behavior and quality of life. Intraoperative microdialysis and imaging connectomics analysis were performed to investigate possible mechanisms of action...
November 29, 2022: Stereotactic and Functional Neurosurgery
Nicolas Massager, Cecile Renier
INTRODUCTION: Radiosurgery is now a recognized treatment of vestibular schwannoma (VS); however, radiosurgical irradiation sometimes fails to stop tumor growth in the long term. Some changes in MR imaging after radiosurgery that are supposed to be related to permanent tumor control may be observed in patients with failed treatment. The objective of the present study was to evaluate the MRI changes observed early after radiosurgery in a cohort of patients with failed radiosurgery for VS...
November 10, 2022: Stereotactic and Functional Neurosurgery
(no author information available yet)
September 29, 2022: Stereotactic and Functional Neurosurgery
Anna Stroud, Stephen Tisch, Benjamin P Jonker
BACKGROUND: Cerebral palsy (CP) is a common cause of acquired dystonia, which can lead to significant interference with quality of life and societal participation. In the last two decades, the surgical treatment of dystonia has primarily focused on deep brain stimulation targeting the basal ganglia and thalamic circuits. However, stimulation of the basal ganglia has generally been less effective in acquired combined forms of dystonia, including dystonic CP. These limitations, along with growing evidence for the role of the cerebellum in the pathophysiology of dystonia, have led to renewed interest in the cerebellum as a target for therapeutic stimulation in dystonia...
September 12, 2022: Stereotactic and Functional Neurosurgery
Michele Rizzi, Martina Giordano, Vittoria Cojazzi, Niccolò Innocenti, Nicolò Castelli, Giuseppe Messina, Vittoria Nazzi, Vincenzo Levi
No abstract text is available yet for this article.
September 8, 2022: Stereotactic and Functional Neurosurgery
Thomas Tangney, Ehsaun S Heydari, Breanna L Sheldon, Amit Shetty, Charles E Argoff, Olga Khazen, Julie G Pilitsis
BACKGROUND: Trigeminal neuralgia (TN) is a common cause of craniofacial pain with many medical and surgical therapies, all of which are imperfect. We examine the use of botulinum toxin type-A (BTX-A) as an intermediary approach in surgical practices. METHODS: We retrospectively identified TN patients seen by both pain neurology and neurosurgery at our center. Demographics were collected. Pain intensity was assessed using the numerical rating scale (NRS) and compared from baseline to after BTX-A treatment via paired t test...
August 9, 2022: Stereotactic and Functional Neurosurgery
Erik Österlund, Patric Blomstedt, Anders Fytagoridis
BACKGROUND: Essential tremor (ET) is the most common adult movement disorder. For the relatively large group of patients who do not respond adequately to pharmacological therapy, deep brain stimulation (DBS) is a well-established treatment option. Most ET patients will have bilateral symptoms, and many of them receive bilateral DBS. Unilateral DBS is however still the most common procedure, and some papers suggest an ipsilateral effect in these patients. OBJECTIVES: The aim of this study was to analyze if there is an ipsilateral effect of DBS for ET...
June 27, 2022: Stereotactic and Functional Neurosurgery
Dorian M Kusyk, Gabriel Costa, Clemens M Schirmer, Alexander C Whiting, Joshua M Rosenow
BACKGROUND: The US Food and Drug Administration (FDA) has granted deep brain stimulation (DBS) approval under the humanitarian device exemption (HDE) pathway for both dystonia and obsessive-compulsive disorder (OCD). However, recent reports from the community of functional neurosurgeons suggest that insurance authorization remains a disproportionate barrier to OCD DBS implantation despite both conditions having similar support from the FDA. This cross-sectional study of health insurance policies quantifies the current payer landscape for these two interventions...
May 16, 2022: Stereotactic and Functional Neurosurgery
Marwan Hariz, Patric Blomstedt
No abstract text is available yet for this article.
April 12, 2022: Stereotactic and Functional Neurosurgery
Cristina Virginia Torres Díaz, Roberto Martínez
No abstract text is available yet for this article.
March 29, 2022: Stereotactic and Functional Neurosurgery
Marwan Hariz
No abstract text is available yet for this article.
March 28, 2022: Stereotactic and Functional Neurosurgery
Zachary T Olmsted, Erika A Petersen, Julie G Pilitsis, Scott Y Rahimi, Peng Roc Chen, Sean I Savitz, Daniel T Laskowitz, Brad J Kolls, Michael D Staudt
INTRODUCTION: Stereotactic neurosurgical techniques are increasingly used to deliver biologics, such as cells and viruses, although standardized procedures are necessary to ensure consistency and reproducibility. OBJECTIVE: We provide an instructional guide to help plan for complex image-guided trajectories; this may be of particular benefit to surgeons new to biologic trials and companies planning such trials. METHODS: We show how nuclei can be segmented and multiple trajectories with multiple injection points can be created through a single or multiple burr hole(s) based on preoperative images...
February 7, 2022: Stereotactic and Functional Neurosurgery
Oscar Andrés Escobar Vidarte, Dylan Paul Griswold, Javier Orozco Mera, Gabriel José Arango Uribe, Juan Camilo Salcedo
Aggressive behavior in patients with intellectual disability can be resistant to pharmacological treatment and have detrimental consequences to themselves, family members, and caregivers. Hypothalamic deep brain stimulation (DBS) has been used to improve this type of behavior in severe and refractory cases. Here, we present the description and analysis of DBS of the posteromedial hypothalamus (PMH) and its long-term impact as treatment to improve severe and refractory aggressive behaviors, even with previous bilateral hypothalamotomy without improvement in patients with intellectual disability...
January 31, 2022: Stereotactic and Functional Neurosurgery
Joshua D Bernstock, Erickson F Torio, Ashley L B Raghu, Melissa Chua, Jason Andrew Chen, David Segar, Saksham Gupta, Philip Jason White, Nathan McDannold, Alexandra J Golby, G Rees Cosgrove
We describe a 74-year-old male with intractable essential tremor (ET) and hyperostosis calvariae diffusa who was unsuccessfully treated with magnetic resonance-guided focused ultrasound (MRgFUS). A computed tomography performed prior to the procedure demonstrated a skull density ratio (SDR) of 0.37 and tricortical hyperostosis calvariae diffusa. No lesion was evident on post-MRgFUS MRI, and no improvement in the patient's hand tremor was noted clinically. We systematically reviewed the literature to understand outcomes for those patients with hyperostosis who have undergone MRgFUS...
2022: Stereotactic and Functional Neurosurgery
Jean Régis, Joachim K Krauss, Serge Blond
No abstract text is available yet for this article.
2022: Stereotactic and Functional Neurosurgery
(no author information available yet)
2022: Stereotactic and Functional Neurosurgery
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