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Increased intracranial pressure

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https://www.readbyqxmd.com/read/27913959/reaction-of-complement-factors-and-proteasomes-in-experimental-encephalitis
#1
Stefan Lange, Tomas Bergström, Ewa Johansson, Merna Oshalim, Ivar Lönnroth
Herpes simplex virus type 1 (HSV-1) encephalitis causes a deleterious inflammation and elevated intracranial pressure. As a step towards examining the origin of the inflammation, we here report the response of circulating proteasomes and complement factors in blood and cerebrospinal fluid (CSF) in rats infected with HSV-1. Infection was via the nasal route, with 1.1 × 10(4) plaque-forming units of HSV-1 strain 2762 given in one or both nostrils. A sandwich enzyme-linked immunosorbent assay was used to study the level of 26S proteasomes and their complex formation with complement factors 3 and 4...
December 2, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27907969/neuroprotection-in-critical-care-neurology
#2
Menno R Germans, Hieronymus D Boogaarts, R Loch Macdonald
Ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, and traumatic brain injury-all have in common early brain injury due to brain tissue destruction, reduced cerebral blood flow and oxygen delivery, and overall substantial morbidity and mortality. The pathophysiology of brain tissue damage likely includes common cellular mechanisms. Neuroprotection has seldom, if ever, been shown to reduce early brain injury. Secondary brain injury develops after these conditions due to macroscopic events such as increased intracranial pressure and reduced cerebral blood flow, as well as cellular processes including vascular damage, inflammation, and apoptotic/necrotic cell death...
December 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27907158/effects-of-exposure-to-blast-overpressure-on-intracranial-pressure-and-blood-brain-barrier-permeability-in-a-rat-model
#3
Usmah Kawoos, Ming Gu, Jason Lankasky, Richard M McCarron, Mikulas Chavko
Exposure to blast overpressure (BOP) activates a cascade of pathological processes including changes in intracranial pressure (ICP) and blood-brain barrier (BBB) permeability resulting in traumatic brain injury (TBI). In this study the effect of single and multiple exposures at two intensities of BOP on changes in ICP and BBB permeability in Sprague-Dawley rats was evaluated. Animals were exposed to a single or three repetitive (separated by 0.5 h) BOPs at 72 kPa or 110 kPa. ICP was monitored continuously via telemetry for 6 days after exposure to BOP...
2016: PloS One
https://www.readbyqxmd.com/read/27906948/cervical-interlaminar-epidural-injections-at-high-doses-do-not-increase-optic-nerve-sheath-diameter-on-a-long-term-basis
#4
Hyunzu Kim, Joo Hyeon O, Sung-Jun Hong, Keun Man Shin, JungChan Park, Sang Soo Kang
BACKGROUND: Cervical epidural injection (CEI) is widely performed on patients with pain originating from the cervical spine. Studies have shown a good relationship between the optic nerve sheath diameter (ONSD) and the intracranial pressure (ICP). OBJECTIVE: The aim of this study was to evaluate the changes in the ONSD as a non-invasive surrogate marker of ICP after CEI. STUDY DESIGN: Prospective observational study. SETTING: Hospital and ambulatory pain clinic...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27906426/continuous-monitoring-of-intracranial-pressure-for-prediction-of-postoperative-complications-of-hypertensive-intracerebral-hemorrhage
#5
S-X Yu, Q-S Zhang, Y Yin, Z Liu, J-M Wu, M-X Yang
OBJECTIVE: This study evaluates the value of continuous dynamic monitoring of intracranial pressure (ICP) in patients with hypertensive intracerebral hemorrhage to predict early postoperative complications. PATIENTS AND METHODS: Data from 80 patients treated in our hospital from February 2014 to February 2015 were analyzed. The patients all underwent decompressive craniectomies, and their ICP changes were monitored invasively and continuously for 1 to 7 days after surgery...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27903844/therapeutic-approaches-to-pediatric-pseudotumor-cerebri-new-insights-from-literature-data
#6
Giovanna Vitaliti, Piero Pavone, Nassim Matin, Omidreza Tabatabaie, Salvatore Cocuzza, Michele Vecchio, Luigi Maiolino, Paola Di Mauro, Angelo Conti, Riccardo Lubrano, Agostino Serra, Raffaele Falsaperla
The pseudotumor cerebri syndrome (PTCS), also known as idiopathic intracranial hypertension (IIH), is characterized by signs and symptoms of increased intracranial pressure such as headache and cranial nerve palsies, in the absence of any space-occupying mass. This condition commonly affects overweight women of childbearing age, even if it is also frequent in men and children. Children with PTCS may present with atypical signs and symptoms, with a different prognosis compared to adults. However, the treatment is the same for both children and adults, even if there are no strict treatment guidelines in regards...
November 30, 2016: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/27903020/dynamic-decompressive-craniotomy-with-a-novel-reversibly-expandable-plate
#7
Rohit Khanna
Objective To assess the feasibility of a dynamic craniotomy procedure with the use of a novel reversibly expandable cranial bone flap fixation plate. The expandable plate allows outward bone flap migration with an increase in intracranial volume or intracranial pressure (ICP). Methods Dynamic craniotomy intracranial hypertension compliance was evaluated in a skull model with progressive increase in intracranial volume and compared with the standard craniotomy with fixed plates. Results Dynamic craniotomy provided significant control of ICP with increasing intracranial volume compared with the standard craniotomy...
November 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27903014/effects-of-meteorological-variables-on-the-incidence-of-rupture-of-intracranial-aneurysms-in-central-new-jersey
#8
Marissa Kellogg, Dimitriy Petrov, Nitin Agarwal, Nitesh V Patel, David Richard Hansberry, Prateek Agarwal, Michael Brimacombe, Chirag D Gandhi, Charles Prestigiacomo
Introduction Previous studies have suggested relationships between the rupture of intracranial aneurysms and meteorological variables such as season, barometric pressure, and temperature. Our objective was to examine the relationship between the incidence of hospital admissions secondary to aneurysmal subarachnoid hemorrhage (aSAH) and meteorological variables in central New Jersey. Methods The study population consisted of 312 patients who presented to University Hospital in Newark, New Jersey, between January 1, 2003, and December 31, 2008, with aSAH...
November 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27890189/diplopia-what-to-double-check-in-radiographic-imaging-of-double-vision
#9
REVIEW
Claudia F E Kirsch, Karen Black
When patients see double with both eyes open, known as "binocular diplopia," this may be a harbinger of underlying life-threatening causes. This article presents pertinent anatomy, critical abnormality, and radiographic features that should be double checked for in diplopia. Key areas requiring a double check using the acronym VISION include Vascular, Infectious and Inflammatory, the Scalp for giant cell arteritis, Sphenoid and Skull base in trauma, Increased intracranial pressure (pseudotumor cerebri), Onset of new headaches or psychosis, and Neoplasm...
January 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/27886896/venous-sinus-stenting-for-idiopathic-intracranial-hypertension-where-are-we-now
#10
REVIEW
Marc J Dinkin, Athos Patsalides
Idiopathic intracranial hypertension causes headache, papilledema and visual field loss, typically in obese women of childbearing age. Its anatomical underpinnings remain unclear, but a stenosis at the junction of the transverse and sigmoid sinuses has been recognized in the majority of patients through venography. The stenosis may result from intrinsic dural sinus anatomy or extrinsic compression by increased intracranial pressure, but in either case, its stenting has been shown to lead to an improvement in symptoms of intracranial hypertension and papilledema in multiple retrospective, non-controlled studies...
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27867912/central-neurocytoma-a-review-of-clinical-management-and-histopathologic-features
#11
REVIEW
Seung J Lee, Timothy T Bui, Cheng Hao Jacky Chen, Carlito Lagman, Lawrance K Chung, Sabrin Sidhu, David J Seo, William H Yong, Todd L Siegal, Minsu Kim, Isaac Yang
Central neurocytoma (CN) is a rare, benign brain tumor often located in the lateral ventricles. CN may cause obstructive hydrocephalus and manifest as signs of increased intracranial pressure. The goal of treatment for CN is a gross total resection (GTR), which often yields excellent prognosis with a very high rate of tumor control and survival. Adjuvant radiosurgery and radiotherapy may be considered to improve tumor control when GTR cannot be achieved. Chemotherapy is also not considered a primary treatment, but has been used as a salvage therapy...
October 2016: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/27867477/hyperbaric-oxygen-therapy-in-experimental-and-clinical-stroke
#12
REVIEW
Wei-Wei Zhai, Liang Sun, Zheng-Quan Yu, Gang Chen
Stroke, which is defined as a neurologic deficit caused by sudden impaired blood supply, has been considered as a common cause of death and disability for decades. The World Health Organization has declared that almost every 5 seconds a new stroke occurs, placing immense socioeconomic burdens. However, the effective and available treatment strategies are still limited. Additionally, the most effective therapy, such as thrombolysis and stenting for ischemic stroke, generally requires a narrow therapeutic time window after the event...
April 2016: Medical Gas Research
https://www.readbyqxmd.com/read/27857999/do-age-and-anticoagulants-affect-the-natural-history-of-acute-subdural-hematomas
#13
Brandon P Lucke-Wold, Ryan C Turner, Darnell Josiah, Chelsea Knotts, Sanjay Bhatia
Acute subdural hematoma is a serious complication following traumatic brain injury. Large volume hematomas or those with underlying brain injury can cause mass effect, midline shift, and eventually herniation of the brain. Acute subdural hematomas in the young are associated with high-energy trauma and often have underlying contusions, while acute subdural hematomas in the elderly are associated with minor trauma and an absence of underlying contusions, even though the elderly are more likely to be on anticoagulants or anti-platelet therapy...
2016: Arch Emerg Med Crit Care
https://www.readbyqxmd.com/read/27857927/a-fatal-adverse-effect-of-barbiturate-coma-therapy-dyskalemia
#14
Hyun Mook Kwon, Jin Wook Baek, Sang Pyung Lee, Jae Ik Cho
The management guideline for traumatic brain injury (TBI) recommends high-dose barbiturate therapy to control increased intracranial pressure refractory to other therapeutic options. High-dose barbiturate therapy, however, may cause many severe side effects; the commonly recognized ones include hypotension, immunosuppression, hepatic dysfunction, renal dysfunction, and prolonged decrease of cortical activity. Meanwhile, dyskalemia remains relatively uncommon. In this study, we report the case of a hypokalemic patient with severe rebound hyperkalemia, which occurred as a result of barbiturate coma therapy administered for TBI treatment...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857926/intracerebral-hemorrhagic-infarction-after-cranioplasty-in-a-patient-with-sinking-skin-flap-syndrome
#15
Jai-Hyuck Han, Mou-Seop Lee
The sinking skin flap syndrome (SSFS) is a rare complication after a large craniectomy. Hemorrhage infarction after a cranioplasty is a very rare complication with only 4 cases to date. We report a case of the patient who underwent an autologous cranioplasty to treat SSFS that developed intracerebral hemorrhage infarction. A 20-year-old male was admitted to our emergency department with stuporous mentality. Emergent decompressive craniectomy (DC) have done. He had suffered from SSFS and fever of unknown origin (FUO) since DC...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857913/addition-of-resection-of-temporal-muscle-and-fascia-in-decompressive-craniectomy-in-the-treatment-of-traumatic-brain-injury
#16
Seung Han Yu, Byung Chul Kim, Jae Young Choi, Jae Il Lee, Won Ho Cho, Hyuk Jin Choi
OBJECTIVE: Decompressive craniectomy (DC) is a widely used surgical procedure for control of severely increased intracranial pressure in various conditions. The goal of this study is to evaluate the effectiveness of the addition of resection of temporalis muscle and fascia in DC particularly in the treatment of traumatic brain injury. METHODS: Twenty patients underwent temporalis muscle and fascia resection in addition to conventional DC and duroplasty due to massive brain swelling in a single tertiary hospital from 2013 to 2015 were enrolled...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857908/therapeutic-hypothermia-for-increased-intracranial-pressure-after-decompressive-craniectomy-a-single-center-experience
#17
Hyun Taek Rim, Jun Hyong Ahn, Ji Hee Kim, Jae Keun Oh, Joon Ho Song, In Bok Chang
OBJECTIVE: Therapeutic hypothermia (TH) and decompressive craniectomy are neuroprotective interventions following severe brain swelling. The precise benefits, risks, and clinical outcomes in brain swelling after TH are still being investigated. We aimed to investigate the effects of TH in severe brain injury after decompressive craniectomy. METHODS: We reviewed the cases of 24 patients who underwent decompressive craniectomy with intracranial pressure (ICP) monitor insertion in one medical center between January 2012 and May 2016...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27856137/therapeutic-hypothermia-and-inhalation-anesthesia-in-a-patient-with-severe-pneumococcal-meningitis-and-secondary-cardiac-arrest
#18
Nejc Bukovnik, Andrej Markota, Tomaž Velnar, Janez Rebol, Andreja Sinkovič
Therapeutic hypothermia was associated with increased mortality in patients with severe bacterial meningitis in a large randomized trial. It still remains a treatment strategy for comatose survivors of cardiac arrest. There are several potential advantages of inhalational anesthetics as long-term sedation agents compared to intravenous sedation, however, uncontrollable increases of intracranial pressure were observed in neurocritical patients. Here we present a patient with severe bacterial meningitis and secondary cardiac arrest where therapeutic hypothermia and inhalational anesthesia were successfully used...
November 2, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27853433/a-surgical-method-to-improve-the-homeostasis-of-csf-for-the-treatment-of-alzheimer-s-disease
#19
Yang Qin, Jian W Gu
Reduced cerebrospinal fluid (CSF) production and increased resistance to CSF outflow are considered to be associated with aging, and are also characteristics of Alzheimer's disease (AD). These changes probably result in a decrease in the efficiency of the mechanism by which CSF removes toxic molecules such as amyloid-β (Aβ) and tau from the interstitial fluid space. Soluble Aβ is potently neurotoxic and dysfunctional in CSF circulation and can accelerate the progression of AD. Current therapies for AD exhibit poor efficiency; therefore, a surgical method to improve the homeostasis of CSF is worthy of investigation...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27852713/effects-of-increased-positive-end-expiratory-pressure-on-intracranial-pressure-in-acute-respiratory-distress-syndrome-a-protocol-of-a-prospective-physiological-study
#20
Han Chen, Ming Xu, Yan-Lin Yang, Kai Chen, Jing-Qing Xu, Ying-Rui Zhang, Rong-Guo Yu, Jian-Xin Zhou
INTRODUCTION: There are concerns that the use of positive end-expiratory pressure (PEEP) in patients with brain injury may potentially elevate intracranial pressure (ICP). However, the transmission of PEEP into the thoracic cavity depends on the properties of the lungs and the chest wall. When chest wall elastance is high, PEEP can significantly increase pleural pressure. In the present study, we investigate the different effects of PEEP on the pleural pressure and ICP in different respiratory mechanics...
November 15, 2016: BMJ Open
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