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Background: Transcranial Doppler (TCD) ultrasonography has been described for the noninvasive assessment of intracranial pressure (ICP). This study investigates the relationship between standard, invasive intracranial pressure monitoring (ICPi) and noninvasive ICP assessment using a simple formula based on TCD-derived flow velocity (FV) and mean arterial blood pressure values (ICPTCD). Material and Methods: We performed a prospective observational study on 100 consecutive traumatic brain...
Introduction: The effective cerebral perfusion pressure (CPPe), zero-flow pressure (ZFP), and resistance area product (RAP) are important determinants of cerebral blood flow. ZFP and RAP are usually estimated by linear regression analysis of pressure-velocity relationships of the middle cerebral artery. The aim of this study was to validate 4 other estimation methods against the standard linear regression method. Methods: In a previous study, electroencephalography, arterial blood pressure,...
Near-infrared spectroscopy (NIRS) may provide a noninvasive way to monitor cerebral oxygenation in patients with traumatic brain injury, therein allowing for timely intervention aimed at reversing regional brain tissue hypoxia. We conducted a systematic review of NIRS-based oximetry measurements and their association with (A) patient functional outcome (B) other neurophysiological parameters. We searched MEDLINE, EMBASE, SCOPUS, BIOSIS, GlobalHealth and Cochrane Databases from inception to December...
Background: Ketamine, a commonly used nonbarbiturate anesthetic drug, possesses antidepressant properties at subanesthetic doses; however, the underlying mechanisms remain unclear. Materials and Methods: The analgesic and antidepressant effects of ketamine were explored using a complete Freund adjuvant (CFA)-induced peripheral inflammatory pain model in vivo. Mice were first divided into sham or CFA injection group randomly, and were observed for mechanical hyperalgesia, depression-like behavior,...
The use of direct oral anticoagulants is increasing rapidly, because of perceived benefits over older agents, such as predictable pharmacokinetics and a reduced risk of bleeding. Elderly patients, who are more likely to be prescribed these drugs, are also presenting for neurosurgical procedures more often. The combination of these factors will result in neurosurgeons and neuroanesthesiologists encountering patients prescribed direct oral anticoagulants on an increasingly frequent basis. This review...
Background: Mannitol is widely used to reduce brain tissue swelling and improve brain relaxation during neurosurgery. However, the optimal dosage for patients with midline shift undergoing supratentorial tumor resection remains unclear. Methods: In this randomized, controlled double-blinded study, 204 patients with preoperative midline shift who underwent elective supratentorial brain tumor surgery were equally allocated to receive placebo or 0.7, 1.0, or 1.4 g/kg mannitol infusion. The primary...
Background: Percutaneous compression of the trigeminal ganglion (PCTG) has been used to treat trigeminal neuralgia since 1983. A PCTG-related trigeminocardiac reflex (TCR) can induce dramatic hemodynamic disturbances. This study investigates the effects of depth of propofol anesthesia on hemodynamic changes during PCTG. Materials and Methods: A total of 120 patients who underwent PTCG for trigeminal neuralgia were randomly assigned to control group-intravenous saline pretreatment before PCTG...
Background: Timing of neurosurgical procedures is controversial. Challenges identified with night-time surgeries include physician fatigue and sleep deprivation, and fewer staff and resources compared with daytime surgery. These might contribute to medical errors and complications, and, hence, worse patient outcomes. Methods: This single center retrospective study of 304 patients who underwent emergent neurosurgical procedures between January 1, 2010 and December 31, 2016 included 2 groups...
Background: Rapid ventricular pacing (RVP) can be used to produce short periods of flow arrest during dissection or rupture of a cerebral aneurysm but carries the risk of inducing cerebral ischemia. This study evaluates the intraoperative effect of RVP on local cerebral blood flow (CBF) and cerebral oxygenation during neurovascular surgery. Materials and Methods: Five patients undergoing elective cerebrovascular surgery were included in a single-center prospective study. RVP was applied in...
Background: Automated pupillometry may help detect early cerebral disturbances in critically ill patients. It remains unclear whether different automated pupillometry devices can detect pupillary abnormalities with similar accuracy. The aim of this study was to compare the performance of 2 commercially available automated pupillometry devices—Neurolight Algiscan (NL) and NPi-200 (NP) versus standard pupillary light reflex (PLR) examination in an unselected cohort of critically ill patients. Materials...
Background: Major lumbar spine surgery causes severe postoperative pain. The primary objective of this randomized controlled study was to compare the effect of ultrasound (US)-guided erector spinae plane (ESP) block on 24-hour postoperative cumulative opioid requirements with standard (opioid-based) analgesia. Postoperative pain control and patient satisfaction were also assessed. Materials and Methods: Adults scheduled for elective lumbar spine surgery under general anesthesia were randomly...
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Ventriculoperitoneal shunt complications in an adult population: A comparison of various shunt designs to prevent overdrainage Category: Article Type: Virendra Rajendrakumar Desai, Saeed Sam Sadrameli, Amanda V. Jenson, Samuel K. Asante, Bradley Daniels, Todd W. Trask, Gavin BritzDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, United...
Coexistent pituitary adenoma and frontal convexity meningioma with frontal sinus invasion: A rare association Category: Article Type: Jaskaran Singh Gosal1, Kartikeya Shukla1, Kokkula Praneeth1, Sarbesh Tiwari2, Mayank Garg1, Suryanarayanan Bhaskar1, Poonam Elhence3, Deepak Kumar Jha1, Sudeep Khera3Departments of Neurosurgery, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.Departments...
Effects of parental level of income and visual presentation of spina bifida occulta in decision making process Category: Article Type: Julia Zhuyu Guo1, Ning Yao2, Nan Bao3, Jorge Lazareff1,4David Geffen School of Medicine at UCLA, Los Angeles, California, United States,University of California, Los Angeles, California, United States,Department of Neurosurgery, Shanghai Children’s Medical Center...
Long-term follow-up of lateral ventricular central neurocytoma treated with subtotal resection followed by concurrent chemoradiotherapy and add on chemotherapy – Case report from a Tertiary Kenyan Cancer Hospital Category: Article Type: Vijayakumar Narayanan1, Kiboi Julius2, James Mbogo1Department of Clinical Oncology, HCG-Cancer Care Kenya,Chair, Department of Surgery, University of Nairobi,...
Comment regarding the article “Comparative metrics of neurosurgical scientific journals: What do they mean to readers?” Category: Article Type: Ali AkhaddarDepartment of Neurosurgery, Avicenne Military Hospital of Marrakech, Mohammed V University in Rabat, Marrakech, Morocco.DOI:10.25259/SNI_453_2020Copyright: © 2020 Surgical Neurology International This is an open-access article distributed under...
Aneurysmal bone cyst of thoracic spine with neurological deficit and its recurrence treated with multimodal intervention – A case report Category: Article Type: B. Yogesh Kumar, R. Thirumal, S. G. ChanderDepartment of Orthopaedics, Chettinad Hospital and Research Institute, Kanchipuram, Tamil Nadu, India.DOI:10.25259/SNI_466_2020Copyright: © 2020 Surgical Neurology International This is an open-access...
Intramedullary spinal cord cavernous malformations in the pediatric population Category: Article Type: Brian Fiani1, Taylor Reardon2, Ryne Jenkins3, Claudia Covarrubias4, Manraj Sekhon5, Marisol Soula6, Michael Kortz7Department of Neurosurgery, Desert Regional Medical Center, Palm Springs, CA,Kentucky College of Osteopathic Medicine, University of Pikeville, Pikeville, KY,College of Osteopathic...
Diffusion tensor imaging of the spinal cord status post trauma Category: Article Type: Brian Fiani1, Christian Noblett2, Jacob Nanney3, Thao Doan4, Elisabeth Pennington5, Ryan Jarrah6, Erika Sarno7, Daniel Nikolaidis8Department of Neurosurgery, Desert Regional Medical Center, Palm Springs, CA,College of Osteopathic Medicine, University of New England, Biddeford, ME,College of Medicine, University...
Unilateral blindness following superior laryngeal nerve block for awake tracheal intubation in a case of posterior cervical spine surgery Category: Article Type: Ali Akhaddar1, Hassan Baallal1, Nabil Hammoune2, Salaheddine Bouabbadi3, Amine Adraoui1, Hatim Belfquih1Department of Neurosurgery, Avicenne Military Hospital of Marrakech, Mohammed V University, Rabat, Morocco.Department of Radiology,...
Does surgical decompression alleviate neglected cauda equina syndromes attributed to lumbar disc herniation and/or degenerative canal stenosis? Category: Article Type: Sulaiman SathDepartment of Spine Services , Indian Spinal Injuries Centre, New Delhi, India.DOI:10.25259/SNI_512_2020Copyright: © 2020 Surgical Neurology International This is an open-access article distributed under the terms of...
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