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Intracranial pressure monitors

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https://www.readbyqxmd.com/read/28511149/analysis-of-extracellular-brain-chemistry-during-percutaneous-dilational-tracheostomy-a-retrospective-study-of-19-patients
#1
Jan Küchler, Jann Wojak, Abdulkareem Abusamha, Claudia Ditz, Volker Martin Tronnier, Jan Gliemroth
OBJECTIVE: The purpose of this study was to analyze changes in brain tissue chemistry around percutaneous dilational tracheostomy (PDT) in patients with acute brain injury (ABI) in a retrospective single-center analysis. PATIENTS AND METHODS: We included 19 patients who had continuous monitoring of brain tissue chemistry and intracranial pressure (ICP) during a 20h period before and after PDT. Different microdialysis parameters (lactate, pyruvate, lactate pyruvate ratio (LPR), glycerol and glutamate) and values of ICP, cerebral perfusion pressure (CPP) and brain tissue oxygenation (PBrO2) were recorded per hour...
May 10, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28508375/an-integration-of-decision-tree-and-visual-analysis-to-analyze-intracranial-pressure
#2
Soo-Yeon Ji, Kayvan Najarian, Toan Huynh, Dong Hyun Jeong
In Traumatic Brain Injury (TBI), elevated Intracranial Pressure (ICP) causes severe brain damages due to hemorrhage and swelling. Monitoring ICP plays an important role in the treatment of TBI patients because ICP is considered a strong predictor of neurological outcome and a potentially amenable method to treat patients. However, it is difficult to predict and measure accurate ICP due to the complex nature of patients' clinical conditions. ICP monitoring for severe TBI patient is a challenging problem for clinicians because traditionally known ICP monitoring is an invasive procedure by placing a device inside the brain to measure pressure...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28497934/cerebral-autoregulation-monitoring-in-acute-traumatic-brain-injury-what-s-the-evidence
#3
Leanne A Calviello, Joseph Donnelly, Frederick A Zeiler, Eric P Thelin, Peter Smielewski, Marek Czosnyka
Cerebral autoregulation is conceptualized as a vascular self-regulatory mechanism within the brain. Controlled by elusive relationships between various biophysical processes, it functions to protect the brain against potential damages caused by sudden changes in cerebral perfusion pressures and flow. Following events such as traumatic brain injuries (TBI), autoregulation may be compromised, potentially leading to an unfavorable outcome. In spite of its complexity, autoregulation has been able to be quantified non-invasively within the neuro-critical care setting with the aid of transcranial Doppler...
May 12, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28495204/intracranial-pressure-monitoring-in-severe-traumatic-brain-injuries-a-closer-look-at-level-1-trauma-centers-in-the-united-states
#4
Piccinini Alice, Lewis Meghan, Benjamin Elizabeth, Aiolfi Alberto, Inaba Kenji, Demetriades Demetrios
INTRODUCTION: The Brain Trauma Foundation (BTF) recently updated recommendations for intracranial pressure (ICP) monitoring in severe traumatic brain injury (TBI). The effect of ICP monitoring on outcomes is controversial, and compliance with BTF guidelines is variable. The purpose of this study was to assess both compliance and outcomes at level I trauma centers. MATERIALS AND METHODS: The American College of Surgeons Trauma Quality Improvement Program database was queried for all patients admitted to level I trauma centers with isolated blunt severe TBI (AIS>3, GCS<9) who met criteria for ICP monitoring...
April 20, 2017: Injury
https://www.readbyqxmd.com/read/28489610/invasive-and-noninvasive-means-of-measuring-intracranial-pressure-a-review
#5
Xuan Zhang, Joshua Medow, Bermans Iskandar, Fa Wang, Mehdi Shokoueinejad, Joyce Koueik, John Webster
Measurement of intracranial pressure (ICP) can be invaluable in the management of critically ill patients. Cerebrospinal fluid (CSF) is produced by the choroid plexus in the brain ventricles (a set of communicating chambers), after which it circulates through the different ventricles and exits into the subarachnoid space (SAS) around the brain, where it is reabsorbed into the venous system. If the fluid does not drain out of the brain or get reabsorbed, the ICP increases, which may lead to brain damage or death...
May 10, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28480113/noninvasive-monitoring-intracranial-pressure-a-review-of-available-modalities
#6
REVIEW
Marium Naveed Khan, Hussain Shallwani, Muhammad Ulusyar Khan, Muhammad Shahzad Shamim
BACKGROUND: Intracranial pressure (ICP) monitoring is important in many neurosurgical and neurological patients. The gold standard for monitoring ICP, however, is via an invasive procedure resulting in the placement of an intraventricular catheter, which is associated with many risks. Several noninvasive ICP monitoring techniques have been examined with the hope to replace the invasive techniques. The goal of this paper is to provide an overview of all modalities that have been used for noninvasive ICP monitoring to date...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28478873/the-use-of-mannitol-and-hypertonic-saline-therapies-in-patients-with-elevated-intracranial-pressure-a-review-of-the-evidence
#7
REVIEW
Briana Witherspoon, Nathan E Ashby
Patients with increased intracranial pressure generally require pharmacologic therapies and often more definitive treatments, such as surgical intervention. The overall goal of these interventions is to maintain or re-establish adequate cerebral blood flow and prevent herniation. Regardless of the cause of increased intracranial pressure, osmotherapy is considered the mainstay of medical therapy, and should be administered as soon as possible. This article reviews the history of hyperosmolar and hypertonic therapies, the Monro-Kellie hypothesis, and types of cerebral edema...
June 2017: Nursing Clinics of North America
https://www.readbyqxmd.com/read/28463046/the-influence-of-hyperthermia-on-intracranial-pressure-cerebral-oximetry-and-cerebral-metabolism-in-traumatic-brain-injury
#8
Lena Nyholm, Tim Howells, Anders Lewén, Lars Hillered, Per Enblad
BACKGROUND: Hyperthermia is a common secondary insult in traumatic brain injury (TBI). The aim was to evaluate the relationship between hyperthermia and intracranial pressure (ICP), and if intracranial compliance and cerebral blood flow (CBF) pressure autoregulation affected that relationship. The relationships between hyperthermia and cerebral oximetry (BtipO2) and cerebral metabolism were also studied. METHODS: A computerized multimodality monitoring system was used for data collection at the neurointensive care unit...
May 2, 2017: Upsala Journal of Medical Sciences
https://www.readbyqxmd.com/read/28437883/in-reply-to-intracranial-pressure-monitoring-in-traumatic-brain-injury
#9
Hosseinali Khalili, Nazanin Sadraei, Amin Niakan, Fariborz Ghaffarpasand, Amin Sadraei
No abstract text is available yet for this article.
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28437882/intracranial-pressure-monitoring-in-traumatic-brain-injury
#10
G Lakshmi Prasad
No abstract text is available yet for this article.
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28435117/use-of-intracranial-pressure-monitoring-frequently-refutes-diagnosis-of-idiopathic-intracranial-hypertension
#11
David S Xu, Randall J Hlubek, Celene B Mulholland, Kerry L Knievel, Kris A Smith, Peter Nakaji
OBJECTIVE: The diagnosis and management of patients with idiopathic intracranial hypertension (IIH) frequently relies on lumbar puncture to ascertain intracranial pressures. However, pressures derived this way may be spurious due to patient body habitus and behavior. We recently incorporated direct continuous intracranial pressure (ICP) monitoring into the work-up for IIH and review our experience and outcomes. METHODS: Through billing records, we identified all patients during a 3-year period who had a diagnosis of idiopathic intracranial hypertension and who underwent ICP monitoring prior to shunt placement or revision...
April 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28430697/abusive-head-trauma-and-mortality-an-analysis-from-an-international-comparative-effectiveness-study-of-children-with-severe-traumatic-brain-injury
#12
Nikki Miller Ferguson, Ajit Sarnaik, Darryl Miles, Nadeem Shafi, Mark J Peters, Edward Truemper, Monica S Vavilala, Michael J Bell, Stephen R Wisniewski, James F Luther, Adam L Hartman, Patrick M Kochanek
OBJECTIVES: Small series have suggested that outcomes after abusive head trauma are less favorable than after other injury mechanisms. We sought to determine the impact of abusive head trauma on mortality and identify factors that differentiate children with abusive head trauma from those with traumatic brain injury from other mechanisms. DESIGN: First 200 subjects from the Approaches and Decisions in Acute Pediatric Traumatic Brain Injury Trial-a comparative effectiveness study using an observational, cohort study design...
April 20, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28430036/paradoxical-cerebrovascular-hemodynamic-changes-with-nicardipine
#13
Shouri Lahiri, Mani Nezhad, Konrad H Schlick, Brenda Rinsky, Axel Rosengart, Stephan A Mayer, Patrick D Lyden
OBJECTIVE Intravenous nicardipine is commonly used for blood pressure reduction in patients with acute stroke. However, few studies have described its effects on cerebrovascular hemodynamics as measured by transcranial Doppler (TCD) waveform analysis and pulsatility index (PI). In this study, the authors report examples of a consistent but paradoxical finding associated with nicardipine that suggests intracranial vasoconstriction, contrary to what is expected from a vasodilator. METHODS The data presented are from a convenience sample of patients who underwent TCD monitoring before, after, or during nicardipine administration...
April 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28421189/optic-nerve-sheath-diameter-ultrasound-evaluation-in-intensive-care-unit-possible-role-and-clinical-aspects-in-neurological-critical-patients-daily-monitoring
#14
M Toscano, G Spadetta, P Pulitano, M Rocco, V Di Piero, O Mecarelli, E Vicenzini
Background. The increase of the optic nerve sheath diameter (ONSD) is a reliable, noninvasive sonographic marker of intracranial hypertension. Aim of the study was to demonstrate the efficacy of ONSD evaluation, when monitoring neurocritical patients, to early identify malignant intracranial hypertension in patients with brain death (BD). Methods. Data from ultrasound ONSD evaluation have been retrospectively analyzed in 21 sedated critical patients with neurological diseases who, during their clinical course, developed BD...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28420900/intracranial-pressure-monitoring-for-pediatric-acute-encephalopathy
#15
Nobuyuki Nosaka, Kohei Tsukahara, Emily Knaup, Toshihiko Yabuuchi, Tomonobu Kikkawa, Yosuke Fujii, Masato Yashiro, Takao Yasuhara, Ayumi Okada, Toyomu Ugawa, Atsunori Nakao, Hirokazu Tsukahara, Isao Date
Newly published clinical practice guidelines recommend intracranial pressure (ICP) monitoring in critical care for the management of pediatric acute encephalopathy (pAE), but the utility of ICP monitoring for pAE has been poorly studied. We recently performed direct ICP monitoring for two patients. We observed that although the direct ICP monitoring had clinical benefits with less body weight gain and no vasopressor use in both cases, this monitoring technique is still invasive. Future studies should determine the utility of non-invasive ICP monitoring systems in pAE to further improve the quality of intensive-care management...
April 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28409034/increased-intracranial-pressure-during-hemodialysis-in-a-patient-with-anoxic-brain-injury
#16
Anton Lund, Mette B Damholt, Ditte G Strange, Jesper Kelsen, Hasse Møller-Sørensen, Kirsten Møller
Dialysis disequilibrium syndrome (DDS) is a serious neurological complication of hemodialysis, and patients with acute brain injury are at increased risk. We report a case of DDS leading to intracranial hypertension in a patient with anoxic brain injury and discuss the subsequent dialysis strategy. A 13-year-old girl was admitted after prolonged resuscitation from cardiac arrest. Computed tomography (CT) revealed an inferior vena cava aneurysm and multiple pulmonary emboli as the likely cause. An intracranial pressure (ICP) monitor was inserted, and, on day 3, continuous renal replacement therapy (CRRT) was initiated due to acute kidney injury, during which the patient developed severe intracranial hypertension...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28389055/primary-amebic-meningoencephalitis-in-children-a-report-of%C3%A2-two-fatal-cases-and-review-of-the-literature
#17
Robert C Stowe, Davut Pehlivan, Katie E Friederich, Michael A Lopez, Shannon M DiCarlo, Varina L Boerwinkle
BACKGROUND: Primary amebic meningoencephalitis is a rare, almost uniformly fatal disease of cerebral invasion by Naegleria fowleri, occurring most commonly after swimming in warm fresh water in summer months. Treatment using the experimental medication miltefosine demonstrated improved survival and favorable neurocognitive outcome in a 2013 North American patient. Little has been described regarding electrographic recordings of such patients, and little is known to compare known pediatric cases of survival...
February 22, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28387644/medical-necessity-of-routine-admission-of-children-with-mild-traumatic-brain-injury-to-the-intensive-care-unit
#18
Jared D Ament, Krista N Greenan, Patrick Tertulien, Joseph M Galante, Daniel K Nishijima, Marike Zwienenberg
OBJECTIVE Approximately 475,000 children are treated for traumatic brain injury (TBI) in the US each year; most are classified as mild TBI (Glasgow Coma Scale [GCS] Score 13-15). Patients with positive findings on head CT, defined as either intracranial hemorrhage or skull fracture, regardless of severity, are often transferred to tertiary care centers for intensive care unit (ICU) monitoring. This practice creates a significant burden on the health care system. The purpose of this investigation was to derive a clinical decision rule (CDR) to determine which children can safely avoid ICU care...
April 7, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28381928/prevalence-of-shunt-dependency-and-clinical-outcome-in-patients-with-massive-intraventricular-haemorrhage-treated-with-endoscopic-washout-and-external-ventricular-drainage
#19
Jason Raj Johnson, Zamzuri Idris, Jafri Malin Abdullah, Azmi Alias, Mohammad Saffari Mohammad Haspani
BACKGROUND: Intraventricular haemorrhage (IVH) causes blockage of ventricular conduits leading to hydrocephalus, increased intracranial pressure (ICP), and a reduced level of consciousness. The current standard management of IVH is insertion of an external ventricular drainage (EVD) catheter. However, this procedure addresses only the problems of acute hydrocephalus and raised ICP. Endoscopic washout allows for a more complete removal of the intraventricular clot. This study compared these two types of treatment in terms of shunt dependency and relevant clinical outcomes...
March 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28377246/awake-surgery-for-brain-vascular-malformations-and-moyamoya-disease
#20
Rami James N Aoun, Mithun G Sattur, Chandan Krishna, Amen Gupta, Matthew E Welz, Allan D Nanney, Antoun H Koht, Matthew C Tate, Katherine H Noe, Joseph I Sirven, Barrett J Anderies, Patrick B Bolton, Terry L Trentman, Richard S Zimmerman, Kristin R Swanson, Bernard R Bendok
OBJECTIVE: While a significant amount of experience has accumulated for awake procedures for brain tumor, epilepsy and carotid surgery, its utility for intracranial neurovascular indications remains largely undefined. Awake surgery, for select neurovascular cases, offers the advantage of precise brain mapping and robust neurological monitoring during surgery for lesions in eloquent areas, avoidance of potential hemodynamic instability, and possible faster recovery. Additionally, it opens the window for perilesional epileptogenic tissue resection with potentially less risk for iatrogenic injury...
April 1, 2017: World Neurosurgery
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