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Increased intracranial pressure

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https://www.readbyqxmd.com/read/29455844/-occipital-sinus-pericranii-about-an-unusual-situation-and-review-of-the-literature
#1
M A Ennouhi, F Choumi, A Boudhas, M Moumine, A Moussaoui
The sinus pericranii refers to a set of clinical presentations that share a pathological communication between the scalp veins and the underlying cranial venous sinus. The nature of this connection ranges from the simple dilatation of the emissary veins, to wide connections through a calvarial bone loss leaving almost the cranial venous sinus in direct contact with the subcutaneous tissue. The authors present the case of an occipital pericranii sinus of intraoperative discovery. Congenital, post-traumatic or spontaneous, this anomaly is most often frontal and located on or close to the midline...
February 15, 2018: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29455690/effect-of-cerebral-perfusion-pressure-on-acute-respiratory-distress-syndrome
#2
Sonny Thiara, Donald E Griesdale, William R Henderson, Mypinder S Sekhon
BACKGROUND: Increased cerebral perfusion pressure (CPP)>70 mmHg has been associated with acute respiratory distress syndrome (ARDS) after traumatic brain injury (TBI). Since this reported association, significant changes in ventilation strategies and fluid management have been accepted as routine critical care. Recently, individualized perfusion targets using autoregulation monitoring suggest CPP titration>70 mmHg. Given these clinical advances, the association between ARDS and increased CPP requires further delineation...
February 19, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29440700/age-related-changes-in-the-response-of-retinal-structure-function-and-blood-flow-to-pressure-modification-in-rats
#3
Da Zhao, Christine T O Nguyen, Zheng He, Vickie H Y Wong, Anna K van Koeverden, Algis J Vingrys, Bang V Bui
Age-related changes to the balance between the pressure inside the eye (intraocular pressure, IOP) and the pressure inside the brain (intracranial pressure, ICP) can modify the risk of glaucoma. In this study, we consider whether the optic nerve in older rat eyes is more susceptible to acute IOP and ICP modification. We systematically manipulate both ICP and IOP and quantify their effects on ganglion cell function (electroretinography, ERG), optic nerve structure (optical coherence tomography, OCT) and retinal blood flow (Doppler OCT)...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29437084/increasing-adherence-to-brain-trauma-foundation-guidelines-for-hospital-care-of-patients-with-traumatic-brain-injury
#4
Ali A Saherwala, Mary Kay Bader, Sonja E Stutzman, Stephen A Figueroa, Jamshid Ghajar, April R Gorman, Abu Minhajuddin, DaiWai M Olson
BACKGROUND: The Brain Trauma Foundation has developed treatment guidelines for the care of patients with acute traumatic brain injury. The Adam Williams Initiative is a program established to provide education and resources to encourage hospitals across the United States to incorporate the guidelines into practice. OBJECTIVE: To explore the relationship in hospitals between participation in the Adam Williams Initiative and adherence to the Brain Trauma Foundation guidelines for patients with acute traumatic brain injury...
February 2018: Critical Care Nurse
https://www.readbyqxmd.com/read/29436916/middle-cerebral-artery-pressure-changes-following-pipeline-flow-diversion
#5
Denise Brunozzi, Sophia F Shakur, Fady T Charbel, Ali Alaraj
Objective Pipeline embolization devices (PED) are commonly used for endovascular treatment of cerebral aneurysms but changes in intracranial hemodynamics after PED deployment are poorly understood. Here, we assess middle cerebral artery (MCA) and systemic blood pressure before and after PED treatment. Methods Records of patients with cerebral aneurysms proximal to the internal carotid artery terminus treated with PED at our institution between 2015 and 2017 were retrospectively reviewed. Patients were included if ipsilateral MCA pressure measurements were available...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29434244/characterization-of-retinal-ganglion-cell-and-optic-nerve-phenotypes-caused-by-sustained-intracranial-pressure-elevation-in-mice
#6
Guofu Shen, Schuyler Link, Sandeep Kumar, Derek M Nusbaum, Dennis Y Tse, Yingbin Fu, Samuel M Wu, Benjamin J Frankfort
Elevated intracranial pressure (ICP) can result in multiple neurologic sequelae including vision loss. Inducible models of ICP elevation are lacking in model organisms, which limits our understanding of the mechanism by which increased ICP impacts the visual system. We adapted a mouse model for the sustained elevation of ICP and tested the hypothesis that elevated ICP impacts the optic nerve and retinal ganglion cells (RGCs). ICP was elevated and maintained for 2 weeks, and resulted in multiple anatomic changes that are consistent with human disease including papilledema, loss of physiologic cupping, and engorgement of the optic nerve head...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29433056/optic-nerve-sheath-diameter-based-on-preoperative-brain-computed-tomography-and-intracranial-pressure-are-positively-correlated-in-adults-with-hydrocephalus
#7
Hyung-Chul Lee, Won-Jong Lee, Yun-Sik Dho, Won-Sang Cho, Yong Hwy Kim, Hee-Pyoung Park
OBJECTIVE: The usefulness of optic nerve sheath diameter (ONSD) in predicting increased intracranial pressure (ICP) is not well established in adults with hydrocephalus. In this retrospective study, we evaluated the correlation between ONSD measured on brain computed tomography (CT) and ICP in adults with hydrocephalus. PATIENTS AND METHODS: ONSDs were measured on preoperative brain CT images from 64 adult patients with hydrocephalus who underwent extracranial ventricular drainage or a ventriculoperitoneal shunt in 2016...
February 7, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29432241/evaluation-and-acute-management-of-ischemic-stroke-in-infants-and-children
#8
Catherine Amlie-Lefond
PURPOSE OF REVIEW: This article provides an overview of stroke in neonates, infants, and children. RECENT FINDINGS: Arterial ischemic stroke and cerebral venous sinus thrombosis are increasingly recognized in childhood as important causes of lifelong morbidity and mortality. Diagnosis of arterial ischemic stroke is frequently delayed, as acute neurologic deficits can be challenging to detect in the young child, and stroke is often not considered in the differential diagnosis...
February 2018: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29428027/does-vasopressin-exacerbate-cerebral-edema-in-patients-with-severe-traumatic-brain-injury
#9
Casey J Allen, Ty K Subhawong, Mena M Hanna, Lydia Chelala, M Ross Bullock, Carl I Schulman, Kenneth G Proctor
Arginine vasopressin (AVP) is often used as an alternative pressor to catecholamines (CATs). However, unlike CATs, AVP is a powerful antidiuretic that could promote edema. We tested the hypothesis that AVP promoted cerebral edema and/or increased requirements for osmotherapy, relative to those who received CATs, for cerebral perfusion pressure (CPP) management after traumatic brain injury (TBI). This is a retrospective review of 286 consecutive TBI patients with intracranial pressure monitoring at a single institution from September 2008 to January 2015...
January 1, 2018: American Surgeon
https://www.readbyqxmd.com/read/29426053/-renal-replacement-therapy-in-acute-kidney-injury-indication-and-implementation
#10
Mira Küllmar, Alexander Zarbock
Acute kidney injury (AKI) is a common complication in critically ill patients and is associated with a worse short- and long-term outcome. The KDIGO (Kidney Disease: Improving Global Outcomes) guidelines suggest to implement preventive strategies in high-risk patients. Definition and classification of acute kidney injury according to the KDIGO criteria are based on an increase in serum creatinine and/or a decrease in urinary output. Renal replacement therapy (RRT) is the only supportive measure in patients with severe AKI...
February 2018: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/29421451/intracranial-hypertension-and-cerebral-autoregulation-a-systematic-review-and-meta-analysis
#11
REVIEW
Marcelo de Lima Oliveira, Angela S M Salinet, Ricardo C Nogueira, Daniel S de Azevedo, Wellingson S Paiva, Manoel J Teixeira, Edson Bor-Seng-Shu
OBJECTIVE: The objective of this paper is to present a systematic review and meta-analysis to establish the relation between cerebral autoregulation (CA) and intracranial hypertension. METHODS: An electronic search using the term "Cerebral autoregulation and intracranial hypertension" was designed to identify studies that analyzed cerebral blood flow (CBF) autoregulation in patients undergoing intracranial pressure (ICP) monitoring. The data were used in meta-analyses and sensitivity analyses...
February 5, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29419604/assessment-of-recovery-following-pediatric-traumatic-brain-injury
#12
Julia C Slovis, Nachi Gupta, Natasha Y Li, Steven G Kernie, Darryl K Miles
OBJECTIVES: We analyzed a prospective database of pediatric traumatic brain injury patients to identify predictors of outcome and describe the change in function over time. We hypothesized that neurologic status at hospital discharge would not reflect the long-term neurologic recovery state. DESIGN: This is a descriptive cohort analysis of a single-center prospective database of pediatric traumatic brain injury patients from 2001 to 2012. Functional outcome was assessed at hospital discharge, and the Glasgow Outcome Scale Extended Pediatrics or Glasgow Outcome Scale was assessed on average at 15...
February 6, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29415565/effect-of-mannitol-on-ultrasonographically-measured-optic-nerve-sheath-diameter-as-a-surrogate-for-intracranial-pressure-during-robot-assisted-laparoscopic-prostatectomy-with-pneumoperitoneum-and-the-trendelenburg-position
#13
In-Jung Jun, Myong Kim, Joonho Lee, Se-Ung Park, Jai-Hyun Hwang, Jun Hyuk Hong, Young-Kug Kim
INTRODUCTION: Carbon dioxide pneumoperitoneum and the steep Trendelenburg position during robot-assisted laparoscopic prostatectomy (RALP) can increase the intracranial pressure (ICP). Mannitol is widely used to treat increased ICP. However, no studies to date have specifically evaluated the effect of mannitol on ICP in patients undergoing RALP. Ultrasonographic measurement of the optic nerve sheath diameter (ONSD) is considered a reliable technique to noninvasively evaluate the ICP. Therefore, this study compared ONSDs as a surrogate for ICP before and after mannitol administration in prostate cancer patients undergoing RALP...
February 7, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29408605/nf2-mutation-in-schwann-cells-delays-functional-neural-recovery-following-injury
#14
Kristy Truong, Iram Ahmad, J Jason Clark, Alison Seline, Tyler Bertroche, Brian Mostaert, Douglas J Van Daele, Marlan R Hansen
Merlin is the protein product of the NF2 tumor suppressor gene. Germline NF2 mutation leads to neurofibromatosis type 2 (NF2), characterized by multiple intracranial and spinal schwannomas. Patients with NF2 also frequently develop peripheral neuropathies. While the role of merlin in SC neoplasia is well established, its role in SC homeostasis is less defined. Here we explore the role of merlin in SC responses to nerve injury and their ability to support axon regeneration. We performed sciatic nerve crush in wild type (WT) and in P0SchΔ39-121 transgenic mice that express a dominant negative Nf2 isoform in SCs...
February 3, 2018: Neuroscience
https://www.readbyqxmd.com/read/29405582/long-term-visual-outcome-in-a-danish-population-of-patients-with-idiopathic-intracranial-hypertension
#15
Christina F Hatem, Hanne M Yri, Anne L Sørensen, Marianne Wegener, Rigmor H Jensen, Steffen Hamann
PURPOSE: Idiopathic intracranial hypertension (IIH) is characterized by raised intracranial pressure (ICP), normal cerebrospinal composition and exclusion of alternative causes to increased ICP. The aim of this study was to evaluate long-term visual outcome in a Danish population of IIH patients. METHODS: Retrospective chart review of 41 women diagnosed with IIH between June 2007 and March 2013. Best-corrected visual acuity (BCVA), colour vision, grade and type of visual field (VF) defects and grade of papilloedema according to the Modified Frisén Score were recorded at baseline visit (V0), 2-6 months (V1) and 13 months follow-up visit (V2) from time of diagnosis...
February 6, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29401746/intracranial-pressure-monitoring-review-and-avenues-for-development
#16
REVIEW
Maya Harary, Rianne G F Dolmans, William B Gormley
Intracranial pressure (ICP) monitoring is a staple of neurocritical care. The most commonly used current methods of monitoring in the acute setting include fluid-based systems, implantable transducers and Doppler ultrasonography. It is well established that management of elevated ICP is critical for clinical outcomes. However, numerous studies show that current methods of ICP monitoring cannot reliably define the limit of the brain's intrinsic compensatory capacity to manage increases in pressure, which would allow for proactive ICP management...
February 5, 2018: Sensors
https://www.readbyqxmd.com/read/29387478/retrospective-review-of-metastatic-melanoma-patients-with-leptomeningeal-disease-treated-with-intrathecal-interleukin-2
#17
Isabella C Glitza, Michelle Rohlfs, Nandita Guha-Thakurta, Roland L Bassett, Chantale Bernatchez, Adi Diab, Scott E Woodman, Cassian Yee, Rodabe N Amaria, Sapna P Patel, Hussein Tawbi, Michael Wong, Wen-Jen Hwu, Patrick Hwu, Amy Heimberger, Ian E McCutcheon, Nicholas Papadopoulos, Michael A Davies
Objectives: Metastatic melanoma patients with leptomeningeal disease (LMD) have an extremely poor prognosis, with a median survival measured in weeks, and few treatment options. Outcomes of a retrospective cohort of patients with LMD that were treated with intrathecal interleukin-2 (IT IL-2) were reviewed to assess the long-term efficacy of this therapy. Methods: The records of metastatic melanoma patients with LMD who were treated with IT IL-2 from 2006 to 2014 in a Compassionate Investigational New Drug study were reviewed...
2018: ESMO Open
https://www.readbyqxmd.com/read/29381948/primary-extraskeletal-myxoid-chondrosarcoma-in-cerebellum-a-case-report-with-literature-review
#18
You Qin, Hai-Bo Zhang, Chang-Shu Ke, Jing Huang, Bian Wu, Chao Wan, Chen-Su Yang, Kun-Yu Yang
RATIONALE: Extraskeletal myxoid chondrosarcoma (EMC) is a rare malignant neoplasm of which intracranial EMC is the rarest. PATIENT CONCERNS: We present an unusual case report of a 41-year-old woman who was sent to the emergency department for a sudden headache and other symptoms related to increased intracranial pressure. INTERVENTIONS: Emergent CT revealed an occupying lesion in the left cerebellum with surrounding edema. A complete surgical excision of the lesion through a transcortical approach was performed...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29373230/hyperperfusion-after-clipping-of-aneurysm-a-rare-entity
#19
Hideaki Nagashima, Tomoru Miwa, Takashi Horiguchi, Ryosuke Tomio, Yu Nakagawa, Kazunari Yoshida
BACKGROUND: Cerebral vasospasm is an uncontrollable and sometimes fatal complication occurring after subarachnoid hemorrhage. However, cerebral hyperperfusion syndrome is a rare complication after subarachnoid hemorrhage. Although plain computed tomography of cerebral hyperperfusion syndrome looks similar to cerebral infarction induced by cerebral vasospasm, they should be distinguished from each other because they require completely different treatments. CASE DESCRIPTION: A 65-year-old man complained of severe headache and vomiting...
January 17, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29367448/posthemorrhagic-ventricular-dilatation-in-preterm-infants-when-best-to-intervene
#20
Lara M Leijser, Steven P Miller, Gerda van Wezel-Meijler, Annemieke J Brouwer, Jeffrey Traubici, Ingrid C van Haastert, Hilary E Whyte, Floris Groenendaal, Abhaya V Kulkarni, Kuo S Han, Peter A Woerdeman, Paige T Church, Edmond N Kelly, Henrica L M van Straaten, Linh G Ly, Linda S de Vries
OBJECTIVE: To compare neurodevelopmental outcomes of preterm infants with and without intervention for posthemorrhagic ventricular dilatation (PHVD) managed with an "early approach" (EA), based on ventricular measurements exceeding normal (ventricular index [VI] <+2 SD/anterior horn width <6 mm) with initial temporizing procedures, followed, if needed, by permanent shunt placement, and a "late approach" (LA), based on signs of increased intracranial pressure with mostly immediate permanent intervention...
January 24, 2018: Neurology
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