Read by QxMD icon Read

Increased intracranial pressure

Cailei Zhao, Yongxin Li, Weiguo Cao, Kui Xiang, Heye Zhang, Jian Yang, Yungen Gan
To explore the use of diffusion tensor imaging (DTI) parameters in the quantitative assessment of early brain microstructure changes before and after ventriculoperitoneal shunt in children with high intracranial pressure hydrocephalus.Ten patients with communicating hydrocephalus (age: 2-36 months) and 14 age-/gender-matched controls (age: 2-36 months) were enrolled in this study. All patients underwent the ventriculoperitoneal shunt procedure. The imaging data were collected before and 3 months after the operation...
October 2016: Medicine (Baltimore)
Laszlo Prokai, Petr Fryčák, Vien Nguyen, Michael J Forster
We report the evaluation of several mass spectrometry-based methods for the determination of carisoprodol and meprobamate in samples obtained from the rat brain by in vivo intracranial microdialyis. Among the techniques that aspire to perform analyses without chromatographic separation and thereby increase throughput, chip-based nanoelectrospray ionization and the use of an atmospheric pressure solids analysis probe fell short of requirements because of insufficient detection sensitivity and hard ionization, respectively...
October 2016: Journal of Mass Spectrometry: JMS
Laurence Ducharme-Crevier, Michele G Mills, Priya M Mehta, Craig M Smith, Mark S Wainwright
BACKGROUND: The primary objective of this study was to characterize changes in cerebral blood flow measured using transcranial Doppler in children with central nervous system infections. We hypothesized that children with central nervous system infections have abnormal cerebral blood flow, associated with a greater frequency of complications and poor neurological outcome. METHODS: We conducted a single-center, retrospective study of children admitted to the neonatal or pediatric intensive care unit with central nervous system infection and undergoing transcranial Doppler as part of routine care between March 2011 and July 2015...
September 4, 2016: Pediatric Neurology
Radek Frič, Erika Kristina Lindstrøm, Geir Andre Ringstad, Kent-André Mardal, Per Kristian Eide
BACKGROUND: In symptomatic Chiari malformation type 1 (CMI), impaired intracranial compliance (ICC) is associated with an increased cranio-spinal pulsatile pressure gradient. Phase-contrast magnetic resonance imaging (MRI) represents a non-invasive modality for the assessment of the pulse pressure gradient at the cranio-cervical junction (CCJ). We wished to explore how the MRI-derived pulse pressure gradient (MRI-dP) compares with invasively measured pulsatile intracranial pressure (ICP) in CMI, and with healthy controls...
October 14, 2016: Acta Neurochirurgica
Si Un Lee, Jin Pyeong Jeon, Hannah Lee, Jung Ho Han, Mingu Seo, Hyoung Soo Byoun, Won-Sang Cho, Ho Geol Ryu, Hyun-Seung Kang, Jeong Eun Kim, Heung Cheol Kim, Kyung-Sool Jang
Optic nerve sheath diameter (ONSD) seen on ocular US has been associated with increased intracranial pressure (IICP). However, most studies have analyzed normal range of ONSD and its optimal cut-off point for IICP in Caucasian populations. Considering ONSD differences according to ethnicity, previous results may not accurately reflect the association between IICP and ONSD in Koreans. Therefore, we conducted this study to investigate normal range of ONSD and its optimal threshold for detecting IICP in Korean patients...
October 2016: Medicine (Baltimore)
Anton M Kolomeyer, Ken K Nischal, Ellen Mitchell
PURPOSE: To report a case of bilateral cavernous sinus thrombosis (CST) in a patient with tacrolimus-associated posttransplant thrombotic microangiopathy. METHODS: Case report. RESULTS: An 8-year-old boy with a medical history of orthotopic heart transplant, posttransplant lymphoproliferative disease, and recurrent infections was hospitalized for nausea, vomiting, and diarrhea. His ocular history included accommodative esotropia, hyperopia with astigmatism, Molluscum contagiosum lid lesions, and idiopathic intracranial hypertension...
October 13, 2016: European Journal of Ophthalmology
Sarah E Bigby, Jennifer E Carter, Sébastien Bauquier, Thierry Beths
Anesthesia protocols for patients with intracranial lesions need to provide hemodynamic stability, preserve cerebrovascular autoregulation, avoid increases in intracranial pressure, and facilitate a rapid recovery. Propofol total intravenous anesthesia (TIVA) maintains cerebral blood flow autoregulation and is considered superior to inhalant agents as an anesthetic protocol for patients with intracranial lesions. A propofol-based TIVA subsequent to premedication with medetomidine and diazepam was used in a king penguin ( Aptenodytes patagonicus ) undergoing magnetic resonance imaging of the brain after a new onset of seizures...
September 2016: Journal of Avian Medicine and Surgery
Tricia Adjei, Daniel Abásolo, David Santamarta
Hydrocephalus is a condition characterised by enlarged cerebral ventricles, which in turn affects intracranial pressure (ICP); however, the mechanisms regulating ICP are not fully understood. A nonlinear signal processing approach was applied to ICP signals measured during infusion studies from patients with two forms of hydrocephalus, in a bid to compare the differences. This is the first study of its kind. The two forms of hydrocephalus were idiopathic normal pressure hydrocephalus (iNPH) and secondary normal pressure hydrocephalus (SH)...
September 2016: Healthcare Technology Letters
Hung-Yi Lai, Ching-Hsin Lee, Ching-Yi Lee
BACKGROUND: For patients suffering from primary brain injury, monitoring intracranial pressure alone is not enough to reflect the dynamic intracranial condition. In our previous study, a segment of the pressure-volume curve can be expressed by the parabolic regression model with single indicator "a". The aim of this study is to evaluate if the indicator "a" can reflect intracranial conditions. METHODS: Patients with traumatic brain injury, spontaneous intracranial hemorrhage, and/or hydrocephalus who had external ventricular drainage from January 2009 to February 2010 were included...
2016: PloS One
Gustaw Wojcik
Arachnoid cysts are intracranial pathologies in the space between the pia mater and the dura mater of the brain and cerebellum. Arachnoid cysts are derived from the arachnoidea mater, which while yielding to germination or splitting creates a space filled with liquid with a composition similar to cerebrospinal fluid. The aim of the study is to present possible clinical symptoms and radiological presentation of intracranial arachnoid cysts. The symptoms of intracranial arachnoid cysts are dependent on its size and location...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Maulee Hiromi Arambewela, Noel P Somasundaram, Chaminda Garusinghe
BACKGROUND: Hypernatremia is a frequent occurrence among hospitalized patients. Severe hypernatremia is associated with mortality rates of over 60 %. Extreme hypernatremia, defined as sodium levels >190 mmol/l, is a rare occurrence. The literature on electrocardiographic changes occurring with this degree of hypernatremia is extremely scarce. We report the case of an 11-year-old Sri Lankan girl who presented with sodium levels of 226 mmol/l following infusion with 3 % hypertonic saline who developed diffuse QT prolongation leading to fatal ventricular tachycardia...
October 1, 2016: Journal of Medical Case Reports
Dong Ha Park, Soo Han Yoon
OBJECTIVE: Among shunt complications, the post-shunt slit ventricle (PSSV) and the post-shunt craniosynostosis (PSCS) may be managed by shunt valve upgrade and/or cranial expansion surgery. Here, we analyzed 26 children with PSSV and/or PSCS who received simple generalized cranial expansion, i.e., total calvarial trans-sutural distraction osteogenesis (TC-TSuDO). METHODS: Among 254 children with shunt surgery, 26 children received TC-TSuDO. These 26 children included of 14 with PSSV, 4 with PSCS, and 8 with both PSSV and PSCS...
October 3, 2016: World Neurosurgery
Bilge Öztoprak
OBJECTIVES: Clinical applications of susceptibility-weighted imaging (SWI) are increasing steadily. The aim of this study is to investigate the appearance of cerebral veins on SWI, which is very sensitive to the deoxyhaemoglobin level in vessels, in pulmonary embolism (PE). METHODS: The cranial SWI images of 19 patients with PE and 22 controls from September 2013 through March 2016 were retrospectively examined for the presence of prominent cerebral veins. MRI findings were correlated with blood oxygen levels...
October 4, 2016: European Radiology
C A Gold, N Odom, S Srinivasan, L Schaff, A Haggiagi, Yazmín Odia
We describe video electroencephalography (video-EEG) correlates of transient neurological attacks due to plateau waves-paroxysmal elevations in intracranial pressure-in patients with leptomeningeal metastases. We identified 3 patients with leptomeningeal metastases, intracranial hypertension, and transient neurological attacks captured on video-EEG without evidence of seizures or epileptiform activity. We identified all clinical events on video and reviewed the corresponding EEG data for evidence of abnormalities...
October 2016: Neurohospitalist
Deepak Kumar Gupta, Ajay Bisht, Priyam Batra, Purva Mathur, Ashok Kumar Mahapatra
BACKGROUND: The management of traumatic brain injury (TBI) aims to maintain the normal cerebral perfusion in spite of the mass lesions that may occur (haematoma, contusion, and oedema). The monitoring of the intracranial pressure (ICP) is a step in that direction. The intra-parenchymal catheters have the lowest incidence of infection compared to intra-ventricular/subdural catheters with reliable and accurate pressure recordings. The major disadvantage of the intra-parenchymal catheters is the cost, especially in developing nations...
October 2016: Asian Journal of Neurosurgery
Sandeep Talari, Yoko Kato, Hanbing Shang, Yasuhiro Yamada, Kei Yamashiro, Daisuke Suyama, Tsukasa Kawase, Vladimir Balik, Wu Rile
CONTEXT: The increase in the detection of unruptured cerebral aneurysms has led to management dilemma. Prediction of risk based on the size of the aneurysm is not always accurate. There is no objective way of predicting rupture of aneurysm so far. Computational fluid dynamics (CFDs) was proposed as a tool to identify the rupture risk. AIMS: To know the correlation of CFD findings with intraoperative microscopic findings and to know the relevance of CFD in the prediction of rupture risk and in the management of unruptured intracranial aneurysms...
October 2016: Asian Journal of Neurosurgery
Lakshmi N Kurnutala, Gurneet Sandhu, Sergio D Bergese
A 62-year-old man with a left temporal lobe tumor was scheduled for a semiurgent craniotomy for tumor excision. Previously, the patient had a laryngeal carcinoma that was resected and treated with chemotherapy and radiotherapy and a history of laryngeal biopsy with awake fiberoptic intubation. Because a difficult airway was anticipated, awake fiberoptic nasopharyngoscopy of the airway was performed under topical anesthesia in the operating room. This revealed a narrow glottic opening with no supraglottic pathology or friable tissue...
November 2016: Journal of Clinical Anesthesia
Danica Grujicic, Luigi Maria Cavallo, Teresa Somma, Rosanda Illic, Mihailo Milicevic, Savo Raicevic, Milica Skender Gazibara, Alessandro Villa, Dragan Savic, Domenico Solari, Paolo Cappabianca
BACKGROUND: Primary intraventricular meningiomas (IVMs) make up 0.5-5% of all intracranial meningiomas and represent one of the most challenging lesions in neurosurgery. METHODS: Between 1990 and 2013, 42 patients (30 female, 12 male, mean age of 43.6 years) underwent the resection of their IVM. The removal was performed by posterior-parietal approach in 19 of the 40 lateral ventricle tumors, and one in the third ventricle meningioma. The transcallosal approach was used for three meningiomas, while other lesions underwent temporal (7 cases) and temporo-parietal approaches (12 pts) respectively...
September 26, 2016: World Neurosurgery
Ruchira M Jha, Ava M Puccio, David O Okonkwo, Benjamin E Zusman, Seo-Young Park, Jessica Wallisch, Philip E Empey, Lori A Shutter, Robert S B Clark, Patrick M Kochanek, Yvette P Conley
OBJECTIVE: Cerebral edema (CE) in traumatic brain injury (TBI) is the consequence of multiple underlying mechanisms and is associated with unfavorable outcomes. Genetic variability in these pathways likely explains some of the clinical heterogeneity observed in edema development. A role for sulfonylurea receptor-1 (Sur1) in CE is supported. However, there are no prior studies examining the effect of genetic variability in the Sur1 gene (ABCC8) on the development of CE. We hypothesize that ABCC8 single nucleotide polymorphisms (SNPs) are predictive of CE...
September 27, 2016: Neurocritical Care
Joana Chaves Gonçalves Rodrigues de Carvalho, Francisco Javier Tercero Machin, Luis San Roman Manzanera, Jordi Blasco Andaluz, Sílvia Herrero Nogués, Núria Peix Soriano, Victor Obach Baurier, Enrique Jesus Carrero Cardenal
BACKGROUND AND OBJECTIVES: Dural arteriovenous fistulas are anomalous shunts between dural arterial and venous channels whose nidus is located between the dural leaflets. For those circumstances when invasive treatment is mandatory, endovascular techniques have grown to become the mainstay of practice, choice attributable to their reported safety and effectiveness. We describe the unique and rare case of a dural arteriovenous fistula treated by transarterial embolization and complicated by an intraventricular hemorrhage...
September 24, 2016: Revista Brasileira de Anestesiologia
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"