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https://www.readbyqxmd.com/read/28190433/seizures-in-the-critically-ill
#1
J Ch'ang, J Claassen
Critically ill patients with seizures are either admitted to the intensive care unit because of uncontrolled seizures requiring aggressive treatment or are admitted for other reasons and develop seizures secondarily. These patients may have multiorgan failure and severe metabolic and electrolyte disarrangements, and may require complex medication regimens and interventions. Seizures can be seen as a result of an acute systemic illness, a primary neurologic pathology, or a medication side-effect and can present in a wide array of symptoms from convulsive activity, subtle twitching, to lethargy...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28190445/management-of-neurologic-complications-of-coagulopathies
#2
J D Vanderwerf, M A Kumar
Coagulopathy is common in intensive care units (ICUs). Many physiologic derangements lead to dysfunctional hemostasis; these may be either congenital or acquired. The most devastating outcome of coagulopathy in the critically ill is major bleeding, defined by transfusion requirement, hemodynamic instability, or intracranial hemorrhage. ICU coagulopathy often poses complex management dilemmas, as bleeding risk must be tempered with thrombotic potential. Coagulopathy associated with intracranial hemorrhage bears directly on prognosis and outcome...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28207601/advanced-monitoring-in-traumatic-brain-injury-microdialysis
#3
Keri L H Carpenter, Adam M H Young, Peter J Hutchinson
PURPOSE OF REVIEW: Here, we review the present state-of-the-art of microdialysis for monitoring patients with severe traumatic brain injury, highlighting the newest developments. Microdialysis has evolved in neurocritical care to become an established bedside monitoring modality that can reveal unique information on brain chemistry. RECENT FINDINGS: A major advance is recent consensus guidelines for microdialysis use and interpretation. Other advances include insight obtained from microdialysis into the complex, interlinked traumatic brain injury disorders of electrophysiological changes, white matter injury, inflammation and metabolism...
February 14, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28187808/diagnosis-and-management-of-acute-encephalitis
#4
J J Halperin
Encephalitis is typically viral (approximately half of diagnosed cases) or autoimmune (about a quarter) with the remainder remaining undiagnosable at this time. All require general supportive care but only a minority requires intensive care admission - in these intubation, to protect the airway or to treat status epilepticus with anesthetic drugs, may be needed. In some dysautonomia with wide blood pressure fluctuations is the principal concern. Remarkably, in addition to supportive care, specific treatment options are available for the majority - immune-modulating therapy for those with autoimmune disorders, antiviral therapy for herpes simplex 1 and 2, and varicella-zoster encephalitis...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28187816/multimodal-neurologic-monitoring
#5
G Korbakis, P M Vespa
Neurocritical care has two main objectives. Initially, the emphasis is on treatment of patients with acute damage to the central nervous system whether through infection, trauma, or hemorrhagic or ischemic stroke. Thereafter, attention shifts to the identification of secondary processes that may lead to further brain injury, including fever, seizures, and ischemia, among others. Multimodal monitoring is the concept of using various tools and data integration to understand brain physiology and guide therapeutic interventions to prevent secondary brain injury...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28187815/principles-of-intracranial-pressure-monitoring-and-treatment
#6
M Czosnyka, J D Pickard, L A Steiner
Intracranial pressure (ICP) is governed by volumes of intracranial blood, cerebrospinal fluid, and brain tissue. Expansion of any of these volumes will trigger compensatory changes in the other compartments, resulting in initially limited change in ICP. Due to the rigid skull, once compensatory mechanisms are exhausted, ICP rises very rapidly. Intracranial hypertension is associated with unfavorable outcome in brain-injured patients. This chapter discusses the pathophysiology of raised ICP, as well as typical waveforms, monitoring techniques, and clinical management...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28153852/effect-of-heparin-on-secondary-brain-injury-in-patients-with-subarachnoid-hemorrhage-an-additional-h-therapy-in-vasospasm-treatment
#7
REVIEW
Markus Bruder, Sae-Yeon Won, Sepide Kashefiolasl, Marlies Wagner, Nina Brawanski, Nazife Dinc, Volker Seifert, Juergen Konczalla
OBJECTIVE: Secondary brain injury leads to high morbidity and mortality rates in patients with aneurysmal subarachnoid hemorrhage (aSAH). However, evidence-based treatment strategies are sparse. Since heparin has various effects on neuroinflammation, microthromboembolism and vasomotor function, our objective was to determine whether heparin can be used as a multitarget prophylactic agent to ameliorate morbidity in SAH. METHODS: Between June 1999 and December 2014, 718 patients received endovascular treatment after rupture of an intracranial aneurysm at our institution; 197 of them were treated with continuous unfractionated heparin in therapeutic dosages after the endovascular procedure...
February 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28169856/postinterventional-critical-care-management-of-aneurysmal-subarachnoid-hemorrhage
#8
Sudhir Datar, Alejandro A Rabinstein
PURPOSE OF REVIEW: Subarachnoid hemorrhage from a ruptured aneurysm (aSAH) is a complex disorder with the potential to have devastating effects on the brain as well as other organ systems. After more than 3 decades of research, the underlying pathophysiologic mechanisms remain incompletely understood and important questions remain regarding the evaluation and management of these patients. The purpose of this review is to analyze the recent literature and improve our understanding of certain key clinical aspects...
February 4, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28035993/brain-monitoring-in-critically-neurologically-impaired-patients
#9
REVIEW
Salazar Jones, Gary Schwartzbauer, Xiaofeng Jia
Assessment of neurologic injury and the evolution of severe neurologic injury is limited in comatose or critically ill patients that lack a reliable neurologic examination. For common yet severe pathologies such as the comatose state after cardiac arrest, aneurysmal subarachnoid hemorrhage (aSAH), and severe traumatic brain injury (TBI), critical medical decisions are made on the basis of the neurologic injury. Decisions regarding active intensive care management, need for neurosurgical intervention, and withdrawal of care, depend on a reliable, high-quality assessment of the true state of neurologic injury, and have traditionally relied on limited assessments such as intracranial pressure monitoring and electroencephalogram...
December 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28004163/treatment-of-cerebral-vasospasm-following-aneurysmal-subarachnoid-haemorrhage-a-systematic-review-and-meta-analysis
#10
Grégoire Boulouis, Marc Antoine Labeyrie, Jean Raymond, Christine Rodriguez-Régent, Anne Claire Lukaszewicz, Damien Bresson, Wagih Ben Hassen, Denis Trystram, Jean Francois Meder, Catherine Oppenheim, Olivier Naggara
OBJECTIVES: To examine the clinical outcome of aneurysmal subarachnoid haemorrhage (aSAH) patients exposed to cerebral vasospasm (CVS)-targeted treatments in a meta-analysis and to evaluate the efficacy of intra-arterial (IA) approaches in patients with severe/refractory vasospasm. METHODS: Randomised controlled trials, prospective and retrospective observational studies reporting clinical outcomes of aSAH patients exposed to CVS targeted treatments, published between 2006-2016 were searched using PubMed, EMBASE and the Cochrane Library...
December 21, 2016: European Radiology
https://www.readbyqxmd.com/read/28004334/noninvasive-neuromonitoring-current-utility-in-subarachnoid-hemorrhage-traumatic-brain-injury-and-stroke
#11
Luisa Vinciguerra, Julian Bösel
Noninvasive neuromonitoring is increasingly being used to monitor the course of primary brain injury and limit secondary brain damage of patients in the neurocritical care unit. Proposed advantages over invasive neuromonitoring methods include a lower risk of infection and bleeding, no need for surgical installation, mobility and portability of some devices, and safety. The question, however, is whether noninvasive neuromonitoring is practical and trustworthy enough already. We searched the recent literature and reviewed English-language studies on noninvasive neuromonitoring in subarachnoid hemorrhage, traumatic brain injury, and ischemic and hemorrhagic stroke between the years 2010 and 2015...
December 21, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27829965/magnetic-resonance-imaging-characteristics-of-hyperacute-intracerebral-hemorrhage
#12
Sulaiman Iftikhar, Nicholas Rossi, Nitin Goyal, Nickalus Khan, Adam Arthur, Ramin Zand
BACKGROUND: Magnetic resonance imaging (MRI) of the brain is highly sensitive for detecting intracerebral hemorrhage (ICH). Understanding of the imaging characteristics of hyperacute ICH is limited secondary to availability and increased time to scan relative to other imaging modalities. OBJECTIVE: In this report, we present the MRI characteristics of two patients who developed ICH while on the MRI table. METHODS: A 44-year-old women presented with week-long headache associated with blurry vision and photophobia...
October 2016: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/23956559/transcranial-doppler-technique-and-common-findings-part-1
#13
Lokesh Bathala, Man Mohan Mehndiratta, Vijay K Sharma
Transcranial Doppler (TCD) can be aptly called as the doctor's stethoscope of the brain. Since its introduction in 1982, by Rune Aaslid, TCD has evolved as a diagnostic, monitoring, and therapeutic tool. During evaluation of patients with acute ischemic stroke, TCD combined with cervical duplex ultrasonography provides physiological information on the cerebral hemodynamics, which is often complementary to structural imaging. Currently, TCD is the only diagnostic tool that can provide real time information about cerebral hemodynamics and can detect embolization to the cerebral vessels...
April 2013: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27011639/transcranial-doppler-techniques-and-advanced-applications-part-2
#14
Arvind K Sharma, Lokesh Bathala, Amit Batra, Man Mohan Mehndiratta, Vijay K Sharma
Transcranial Doppler (TCD) is the only diagnostic tool that can provide continuous information about cerebral hemodynamics in real time and over extended periods. In the previous paper (Part 1), we have already presented the basic ultrasound physics pertaining to TCD, insonation methods, and various flow patterns. This article describes various advanced applications of TCD such as detection of right-to-left shunt, emboli monitoring, vasomotor reactivity (VMR), monitoring of vasospasm in subarachnoid hemorrhage (SAH), monitoring of intracranial pressure, its role in stoke prevention in sickle cell disease, and as a supplementary test for confirmation of brain death...
January 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27894490/traumatic-brain-injury-advances
#15
REVIEW
Deborah M Stein, Cristina B Feather, Lena M Napolitano
There have been many recent advances in the management of traumatic brain injury (TBI). Research regarding established and novel therapies is ongoing. Future research must not only focus on development of new strategies but determine the long-term benefits or disadvantages of current strategies. In addition, the impact of these advances on varying severities of brain injury must not be ignored. It is hoped that future research strategies in TBI will prioritize large-scale trials using common data elements to develop large registries and databases, and leverage international collaborations...
January 2017: Critical Care Clinics
https://www.readbyqxmd.com/read/27852691/medical-management-of-intracerebral-haemorrhage
#16
REVIEW
Floris H B M Schreuder, Shoichiro Sato, Catharina J M Klijn, Craig S Anderson
The global burden of intracerebral haemorrhage (ICH) is enormous. Developing evidence-based management strategies for ICH has been hampered by its diverse aetiology, high case fatality and variable cooperative organisation of medical and surgical care. Progress is being made through the conduct of collaborative multicentre studies with the large sample sizes necessary to evaluate therapies with realistically modest treatment effects. This narrative review describes the major consequences of ICH and provides evidence-based recommendations to support decision-making in medical management...
January 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27960192/transcranial-doppler
#17
Vijay K Sharma, Ka Sing Wong, Andrei V Alexandrov
Transcranial Doppler ultrasonography (TCD) is the only diagnostic modality that provides a reliable evaluation of intracranial blood flow patterns in real-time. The physiological information obtained from TCD is complementary to the anatomical details obtained from other neuroimaging modalities. TCD is relatively cheap, can be performed bedside, and allows monitoring in acute emergency settings. TCD criteria for intracranial stenosis have been validated against various forms of angiographic studies and serve as reliable tools for screening, diagnostic as well as follow up purposes...
2016: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/27808265/unruptured-intracranial-aneurysms-development-rupture-and-preventive-management
#18
REVIEW
Nima Etminan, Gabriel J Rinkel
Saccular unruptured intracranial aneurysms (UIAs) have a prevalence of 3% in the adult population, and are being increasingly detected because of improved quality and higher frequency of cranial imaging. Large amounts of data, providing varying levels of evidence, have been published on aneurysm development, progression and rupture, but less information is available on the risks and efficacy of preventive treatment. When deciding how to best manage UIAs, clinicians must consider the age and life expectancy of the patient, the estimated risk of rupture, the risk of complications attributed to preventive treatment, and the level of anxiety caused by the awareness of having an aneurysm...
November 3, 2016: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27894491/coagulopathy-of-trauma
#19
REVIEW
Mitchell J Cohen, S Ariane Christie
Coagulopathy is common after injury and develops independently from iatrogenic, hypothermic, and dilutional causes. Despite considerable research on the topic over the past decade, trauma-induced coagulopathy (TIC) continues to portend poor outcomes, including decreased survival. We review the current evidence regarding the diagnosis and mechanisms underlying trauma induced coagulopathy and summarize the debates regarding optimal management strategy including product resuscitation, potential pharmacologic adjuncts, and targeted approaches to hemostasis...
January 2017: Critical Care Clinics
https://www.readbyqxmd.com/read/27740982/imaging-of-ischemic-stroke
#20
Michelle P Lin, David S Liebeskind
PURPOSE OF REVIEW: This article provides an overview of cerebrovascular hemodynamics, acute stroke pathophysiology, and collateral circulation, which are pivotal in the modern imaging of ischemic stroke that guides the care of the patient with stroke. RECENT FINDINGS: Neuroimaging provides extensive information on the brain and vascular health. Multimodal CT and MRI delineate the hemodynamics of ischemic stroke that may be used to guide treatment decisions and prognosticate regarding expected outcomes...
October 2016: Continuum: Lifelong Learning in Neurology
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