Transradial access for neurointerventional procedures: A practical approach.

Introduction: Transradial approach (TRA) is a new technique proposed for performing cerebral angiography and neuro-interventional procedures. In this article, we sought to provide a step-by-step guide for carrying out a diagnostic cerebral angiography using this approach and summarize our center's experience.

Material And Methods: Records of patients since January 2020 were investigated, and data on demographic indices, reports of the procedures, outcomes, and complications were extracted.

Endovascular treatment as the first-line approach for cure of low-grade brain arteriovenous malformation.

Objective: While microsurgery has been proposed as the first-line treatment for patients with low-grade (Spetzler-Martin grade I or II) brain arteriovenous malformations (bAVMs), recent studies have shown promising results for endovascular treatment (EVT) as a single proper choice for the management of this group of bAVMs. In this study, the authors evaluated the safety and efficacy of EVT as a first-line strategy for curing low-grade bAVMs at their center.

Methods: All patients with low-grade bAVMs managed primarily by EVT between 2015 and 2021 were enrolled in this study.

Impact of liberal intraoperative allogeneic blood transfusion on postoperative morbidity and mortality in major thoracic and lumbar posterior spine instrumentation surgeries.

Purpose: To investigate the impact of intraoperative blood transfusion on outcomes in patients who had major thoracic and lumber posterior spine instrumentation surgery.

Methods: Retrospective study included patients who underwent major spine surgery between 2013 and 2017. Patients' demographics, surgical charts, anesthesia charts, discharge charts and follow-up outpatient charts were reviewed.

Roadmap for Conducting Neuroscience Research in the COVID-19 Era and Beyond: Recommendations From the SNACC Research Committee.

The coronavirus disease 2019 (COVID-19) pandemic has impacted many aspects of neuroscience research. At the 2020 Society of Neuroscience in Anesthesiology and Critical Care (SNACC) Annual Meeting, the SNACC Research Committee met virtually to discuss research challenges encountered during the COVID-19 pandemic along with possible strategies for facilitating research activities. These challenges and recommendations are included in this Consensus Statement.

Guillain-Barré Syndrome as a Neurological Complication of Novel COVID-19 Infection: A Case Report and Review of the Literature.

Introduction: The novel coronavirus (COVID-19) is a global pandemic. Although the main clinical manifestation of COVID-19 is respiratory involvement, there is evidence suggesting the neuroinvasive potential of COVID-19. There are limited reports of neurological complications of COVID-19 infection in the literature.

Assessment of the Prevalence of Vascular Anomalies of the Circle of Willis Based on the Autopsy of Cadavers in Kurdish Race Between 2016 and 2017.

Introduction: Cerebral arterial variations are commonly associated with cerebrovascular disease and should be considered during brain surgeries. Since some cerebrovascular diseases are seen in certain breeds, it seems that different distributions of cerebral arterial variations depend on race.

Aim: The aim of this study was to determine the random incidence of vascular anomalies of the circle of Willis in autopsy of the cadavers.

Postoperative conversion disorder.

Conversion disorder is a psychiatric disorder in which psychological stress causes neurologic deficits. A 28-year-old female surgical patient had uneventful general anesthesia and emergence but developed conversion disorder 1 hour postoperatively. She reported difficulty speaking, right-hand numbness and weakness, and right-leg paralysis.

Impact of anesthesia on mortality during endovascular clot removal for acute ischemic stroke.

Background: Endovascular clot retrieval is a technique available for removing intracranial arterial occlusions in acute ischemic stroke (AIS). This rescue therapy can be performed with moderate conscious sedation (CS) or general anesthesia (GA). The effect of GA on clinical outcome in AIS remains controversial.

Risk factors for delayed extubation in thoracic and lumbar spine surgery: a retrospective analysis of 135 patients.

Purpose: Extubation may be delayed after spine surgery mainly for the concerns of airway safety. Risk factors for delayed extubation in cervical spine surgery have been described to include prolonged surgery time and amount of crystalloids or blood transfused. To date, risk factors for delayed extubation in thoracic or lumbar spine surgery have not been investigated.

Web-based educational activities developed by the Society for Neuroscience in Anesthesiology and Critical Care (SNACC): the experience of process, utilization, and expert evaluation.

Background: Web-based delivery of educational material by scientific societies appears to have increased recently. However, the utilization of such efforts by the members of professional societies is unknown. We report the experience with delivery of educational resources on the Web site of the Society for Neuroscience in Anesthesiology and Critical Care (SNACC), and utilization of those resources by members.

Role of communication systems in coordinating supervising anesthesiologists' activities outside of operating rooms.

Background: Theoretically, communication systems have the potential to increase the productivity of anesthesiologists supervising anesthesia providers. We evaluated the maximal potential of communication systems to increase the productivity of anesthesia care by enhancing anesthesiologists' coordination of care (activities) among operating rooms (ORs).

Methods: At hospital A, data for 13,368 pages were obtained from files recorded in the internal alphanumeric text paging system.

Transcranial motor evoked potential changes induced by provocative testing during embolization of cerebral arteriovenous malformations in patients under total intravenous anesthesia.

Cerebral motor evoked potential (MEP) monitoring during arteriovenous malformation (AVM) embolization is not well studied (Söderman et al. 2003). Alterations of cerebral blood flow (CBF) during cerebral embolization could cause ischemia/infarction to the cerebral cortex.

Fibrodysplasia ossificans progressiva: anesthetic management in complex orthopedic spine procedures.

Fibrodysplasia ossificans progressiva (FOP) is a rare disorder of the connective tissue leading to progressive tissue ossification and immobilization. Soft-tissue trauma may exacerbate this condition, causing further ossification. Multisystem involvement includes restrictive lung disease, cervical ankylosis with limited mouth opening, and cardiac dysfunction.

Direct cortical stimulation but not transcranial electrical stimulation motor evoked potentials detect brain ischemia during brain tumor resection.

Motor evoked potentials (MEPs) elicited by both direct cortical stimulation (DCS) and transcranial electrical stimulation are used during brain tumor resection. Parallel use of direct cortical stimulation motor evoked potentials (DCS-MEPs) and transcranial electrical stimulation motor evoked potentials (TCeMEPs) has been practiced during brain tumor resection. We report that DCS-MEPs elicited by direct subdural grid stimulation, but not TCeMEPs, detected brain ischemia during brain tumor resection.

Deep hypothermic circulatory arrest for treatment of renal carcinoma.

The case of a 67-year-old woman with multiple medical problems who presented for resection of a metastatic renal cell carcinoma involving the posterior fossa, is presented. Anesthetic management of the patient, who suffered metastasis to the brain, and who required deep hypothermic circulatory arrest, is discussed.

Hyperbaric oxygenation mitigates focal cerebral injury and reduces striatal dopamine release in a rat model of transient middle cerebral artery occlusion.

The usefulness of the administration of hyperbaric oxygen (HBO) in the treatment of acute focal cerebral ischemia remains debatable. A significant association exists between focal cerebral injury and an excessive release of extracellular dopamine (DA). In vivo microdialysis was used in the present study to examine the effect of HBO on DA release in the striatum during ischemia and reperfusion in rats.