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https://www.readbyqxmd.com/read/29456135/pericyte-alk5-timp3-axis-contributes-to-endothelial-morphogenesis-in-the-developing-brain
#1
Jui M Dave, Teodelinda Mirabella, Scott D Weatherbee, Daniel M Greif
The murine embryonic blood-brain barrier (BBB) consists of endothelial cells (ECs), pericytes (PCs), and basement membrane. Although PCs are critical for inducing vascular stability, signaling pathways in PCs that regulate EC morphogenesis during BBB development remain unexplored. Herein, we find that murine embryos lacking the transforming growth factor β (TGF-β) receptor activin receptor-like kinase 5 (Alk5) in brain PCs (mutants) develop gross germinal matrix hemorrhage-intraventricular hemorrhage (GMH-IVH)...
February 8, 2018: Developmental Cell
https://www.readbyqxmd.com/read/29452427/effect-of-routine-screening-head-ultrasounds-on-clinical-interventions-for-premature-infants
#2
Andrew Z Heling, Matthew M Laughon, Wayne A Price
OBJECTIVE: This article assesses whether routine, screening head ultrasound (HUS) studies performed at 7 to 14 postnatal days for premature infants are followed by clinical interventions. STUDY DESIGN: This retrospective cohort study included all inborn infants delivered at < 30 weeks' gestational age (GA) between January 1, 2012 and December 31, 2015 at a single center who had a routine, screening HUS performed between 7 and 14 postnatal days ( n = 303). We defined "clinical intervention" as a 7 to 14 postnatal day HUS that was followed by neurosurgical intervention prior to a 36- to 40-week postmenstrual age (PMA) HUS or elective withdrawal of critical care within 30 days of a positive HUS finding...
February 16, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29448926/histologic-chorioamnionitis-in-preterm-infants-correlation-with-brain-magnetic-resonance-imaging-at-term-equivalent-age
#3
Claire Granger, Alicia J Spittle, Jennifer Walsh, Jan Pyman, Peter J Anderson, Deanne K Thompson, Katherine J Lee, Lee Coleman, Charuta Dagia, Lex W Doyle, Jeanie Cheong
BACKGROUND: To explore the associations between histologic chorioamnionitis with brain injury, maturation and size on magnetic resonance imaging (MRI) of preterm infants at term equivalent age. METHODS: Preterm infants (23-36 weeks' gestational age) were recruited into two longitudinal cohort studies. Presence or absence of chorioamnionitis was obtained from placental histology and clinical data were recorded. MRI at term-equivalent age was assessed for brain injury (intraventricular haemorrhage, cysts, signal abnormalities), maturation (degree of myelination, gyral maturation) and size of cerebral structures (metrics and brain segmentation)...
February 15, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29428705/risk-factors-for-failure-in-the-newborn-hearing-screen-test-in-very-preterm-twins
#4
So Young Kim, Byung Yoon Choi, Eun Young Jung, Hyunsoo Park, Ha-Na Yoo, Kyo Hoon Park
BACKGROUND: We aimed to identify prenatal and postnatal risk factors associated with abnormal newborn hearing screen (NHS) results and subsequently confirmed sensorineural hearing loss (SNHL) in preterm twin neonates. METHODS: Electronic medical records of 159 twin neonates who were born alive after ≤32 weeks were retrospectively reviewed for hearing loss in both ears. Histopathologic examination of the placenta was performed and clinical data, including method of conception and factors specific to twins, were retrieved from a computerized perinatal database...
January 31, 2018: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29426264/comparison-between-maternal-and-neonatal-outcome-of-pprom-in-the-cases-of-amniotic-fluid-index-afi-of-more-and-less-than-5-cm
#5
Ashraf Sadat Mousavi, Neda Hashemi, Maryam Kashanian, Narges Sheikhansari, Arash Bordbar, Shayesteh Parashi
The study was performed on pregnant women with a gestational age of 26-32 weeks of pregnancy, who had been admitted to the hospital with a confirmed diagnosis of premature rupture of membranes. In all eligible women, ultrasounds were performed for the evaluation of amniotic fluid index. Then, the women were divided into two groups according to amniotic fluid index of ≥5 cm and <5 cm. These women were followed and monitored up to delivery. The women of the two groups did not have significant difference between them according to age, gestational age at the time of ruptured membrane, body mass index, gravidity, parity, gestational age at delivery and route of delivery...
February 9, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29397452/update-on-the-treatment-of-spontaneous-intraparenchymal-hemorrhage-medical-and-interventional-management
#6
REVIEW
Thomas J Cusack, J Ricardo Carhuapoma, Wendy C Ziai
PURPOSE OF REVIEW: Spontaneous intraparenchymal hemorrhage (IPH) is a prominent challenge faced globally by neurosurgeons, neurologists, and intensivists. Over the past few decades, basic and clinical research efforts have been undertaken with the goal of delineating biologically and evidence-based practices aimed at decreasing mortality and optimizing the likelihood of meaningful functional outcome for patients afflicted with this devastating condition. Here, the authors review the medical and surgical approaches available for the treatment of spontaneous intraparenchymal hemorrhage, identifying areas of recent progress and ongoing research to delineate the scope and scale of IPH as it is currently understood and treated...
February 3, 2018: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/29380120/altered-white-matter-development-in-children-born-very-preterm
#7
Julia M Young, Marlee M Vandewouw, Benjamin R Morgan, Mary Lou Smith, John G Sled, Margot J Taylor
Children born very preterm (VPT) at less than 32 weeks' gestational age (GA) are prone to disrupted white matter maturation and impaired cognitive development. The aims of the present study were to identify differences in white matter microstructure and connectivity of children born VPT compared to term-born children, as well as relations between white matter measures with cognitive outcomes and early brain injury. Diffusion images and T1-weighted anatomical MR images were acquired along with developmental assessments in 31 VPT children (mean GA: 28...
January 29, 2018: Brain Structure & Function
https://www.readbyqxmd.com/read/29371627/volume-size-professionals-specialization-and-nutrition-management-of-nicus-and-their-association-with-treatment-quality-in-vlbw-infants
#8
Felix Miedaner, Kristina Langhammer, Christian Enke, Wolfgang Göpel, Angela Kribs, Anika Nitzsche, Rainer Riedel, Christiane Woopen, Ludwig Kuntz, Bernhard Roth
OBJECTIVE: To assess the association of volume, size, the availability of highly-specialized professionals and nutrition management of NICUs with treatment quality among VLBW infants. STUDY DESIGN: A prospective multicenter study of 923 VLBW infants in 66 German NICUs, born between May and October 2013. Using multilevel modeling, we examined the association between the aforementioned organizational characteristics and treatment quality, measured via major morbidities (severe IVH, PVL, BPD, NEC, FIP, ROP, and discharge without severe complications) and medical process measures of VLBW infants...
January 25, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29353261/impact-of-delivered-tidal-volume-on-the-occurrence-of-intraventricular-haemorrhage-in-preterm-infants-during-positive-pressure-ventilation-in-the-delivery-room
#9
Qaasim Mian, Po-Yin Cheung, Megan O'Reilly, Samantha K Barton, Graeme R Polglase, Georg M Schmölzer
BACKGROUND AND OBJECTIVES: Delivery of inadvertent high tidal volume (VT) during positive pressure ventilation (PPV) in the delivery room is common. High VT delivery during PPV has been associated with haemodynamic brain injury in animal models. We examined if VT delivery during PPV at birth is associated with brain injury in preterm infants <29 weeks' gestation. METHODS: A flow-sensor was placed between the mask and the ventilation device. VT values were compared with recently described reference ranges for VT in spontaneously breathing preterm infants at birth...
January 20, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29346831/postoperative-reduction-of-intraventricular-hemorrhage-volume-single-versus-dual-catheter-drainage
#10
Syed Shahzad Hussain, Asif Raza, Saman Shahid, Hafiz Hamza Asif, Usman Ahmad, Naveed Ashraf
BACKGROUND/AIMS:  The use of single/dual external ventricular drains (EVD) for reducing intraventricular hemorrhage (IVH) is under investigation. A randomized controlled trial was conducted to compare postoperative reduction of IVH volume using single- and dual-catheter drainage in spontaneous IVH patients. We investigated factors that may influence an effective hematoma volume reduction by EVDs. MATERIALS AND METHODS:  The average cerebrospinal fluid (CSF) drainage volumes were analyzed...
January 18, 2018: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/29343148/predictors-of-intracranial-hemorrhage-volume-and-distribution-in-brain-arteriovenous-malformation
#11
Jay F Yu, Andrew D Nicholson, Jeffrey Nelson, Matthew D Alexander, Stephanie H Tse, Steven W Hetts, J Claude Hemphill, Helen Kim, Daniel L Cooke
Background and purpose Despite evidence regarding risk factors for brain arteriovenous malformation (bAVM)-associated spontaneous intracranial hemorrhage (ICH), few data exist describing the spectrum of clinical outcomes that bAVM-associated ICH may manifest. This study aimed to identify the demographical, clinical, and bAVM anatomical variables associated with ICH volume and the presence of intraventricular hemorrhage (IVH) of ruptured bAVMs, two indicators of worse clinical outcome, to help better predict outcome for unruptured bAVMs...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29328980/consequence-of-intraventricular-hemorrhage-on-neurovascular-coupling-evoked-by-speech-syllables-in-preterm-neonates
#12
Mahdi Mahmoudzadeh, Ghislaine Dehaene-Lambertz, Guy Kongolo, Marc Fournier, Sabrina Goudjil, Fabrice Wallois
Intraventricular Hemorrhage (IVH) is the leading cause of neurological and cognitive impairment in preterm neonates with an incidence that increases with increasing prematurity. In the present study, we tested how preterm neonates with IVH react to external stimulation (i.e. speech syllables). We compared their neural responses measured by electroencephalography (EEG), and hemodynamic responses measured by functional near-infrared spectroscopy (fNIRS), with those of healthy preterms. A neural response to syllables was observed in these infants, but did not induce a vascular response in contrast with healthy neonates...
January 5, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29327521/cerebrospinal-fluid-a-clinicopathologic-analysis
#13
Asha Shenoy, Heena Desai, Aparna Mandvekar
Context and Objective: This study aims to emphasize the importance of an appropriate CSF examination in patients of suspected CNS disease and the necessity of correlating it with the clinico-radiologic findings which will help in early diagnosis of CNS diseases and guide the further management of the disease. Design: In this 2 year study, 215 CSF samples from patients with clinically suspected diseases of the CNS were studied. The CSF samples were analyzed for gross examination, protein, sugar, adenosine deaminase (ADA) levels, microscopic examination and microbiologic examination...
December 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29318180/systemic-inflammatory-response-syndrome-infection-and-outcome-in-intracerebral-hemorrhage
#14
Amelia K Boehme, Mary E Comeau, Carl D Langefeld, Aaron Lord, Charles J Moomaw, Jennifer Osborne, Michael L James, Sharyl Martini, Fernando D Testai, Daniel Woo, Mitchell S V Elkind
Objective: Systemic inflammatory response syndrome (SIRS) may be related to poor outcomes after intracerebral hemorrhage (ICH). Methods: The Ethnic/Racial Variations of Intracerebral Hemorrhage study is an observational study of ICH in whites, blacks, and Hispanics throughout the United Sates. SIRS was defined by standard criteria as 2 or more of the following on admission: (1) body temperature <36°C or >38°C, (2) heart rate >90 beats per minute, (3) respiratory rate >20 breaths per minute, or (4) white blood cell count <4,000/mm3 or >12,000/mm3...
March 2018: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29310142/neonatal-outcomes-associated-with-noncephalic-presentation-at-delivery-in-preterm-birth
#15
Amber M Wood, Annalisa L Post, Geeta K Swamy, Chad A Grotegut
OBJECTIVE:  The objective of this study is to evaluate the effect of noncephalic presentation on neonatal outcomes in preterm delivery. STUDY DESIGN:  In this study a secondary analysis of the BEAM trial was performed. It included women with singleton, liveborn, and nonanomalous fetuses. Neonatal outcomes were compared in noncephalic versus cephalic presentation. Adjusted odds ratios and 95% confidence intervals were calculated for each outcome with logistic regression while controlling for possible confounders...
January 8, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29305915/intraventricular-hemorrhage-due-to-subarachnoid-hemorrhage-does-the-severity-matter
#16
Marvin Darkwah Oppong, Oliver Gembruch, Annika Herten, Roman Frantsev, Mehdi Chihi, Philipp Dammann, Nicolai El Hindy, Michael Forsting, Ulrich Sure, Ramazan Jabbarli
OBJECT: Aneurysm rupture might be accompanied by intraventricular hemorrhage (IVH) that is associated with poor outcome of subarachnoid hemorrhage (SAH). The aim of this study was to analyze risk factors and clinical impact of IVH severity. MATERIAL AND METHODS: 995 consecutive SAH patients treated at our institution between January 2003 and June 2016 were eligible for this study. Clinical and radiological findings were correlated with the presence and severity of IVH assessed with the original Graeb score...
January 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29303451/traumatic-midline-subarachnoid-hemorrhage-on-initial-computed-tomography-as-a-marker-of-severe-diffuse-axonal-injury
#17
Daddy Mata-Mbemba, Shunji Mugikura, Atsuhiro Nakagawa, Takaki Murata, Kiyoshi Ishii, Shigeki Kushimoto, Teiji Tominaga, Shoki Takahashi, Kei Takase
OBJECTIVE The objective of this study was to test the hypothesis that midline (interhemispheric or perimesencephalic) traumatic subarachnoid hemorrhage (tSAH) on initial CT may implicate the same shearing mechanism that underlies severe diffuse axonal injury (DAI). METHODS The authors enrolled 270 consecutive patients (mean age [± SD] 43 ± 23.3 years) with a history of head trauma who had undergone initial CT within 24 hours and brain MRI within 30 days. Six initial CT findings, including intraventricular hemorrhage (IVH) and tSAH, were used as candidate predictors of DAI...
January 5, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29298438/influence-of-pco2-control-on-clinical-and-neurodevelopmental-outcomes-of-extremely-low-birth-weight-infants
#18
Ulrich H Thome, Jens Dreyhaupt, Orsolya Genzel-Boroviczeny, Bettina Bohnhorst, Manuel Schmid, Hans Fuchs, Oliver Rohde, Stefan Avenarius, Hans-Georg Topf, Andrea Zimmermann, Dirk Faas, Katharina Timme, Barbara Kleinlein, Horst Buxmann, Wilfried Schenk, Hugo Segerer, Norbert Teig, Benjamin Ackermann, Roland Hentschel, Matthias Heckmann, Rolf Schlösser, Jochen Peters, Rainer Rossi, Wolfgang Rascher, Ralf Böttger, Jürgen Seidenberg, Gesine Hansen, Harald Bode, Maria Zernickel, Rainer Muche, Helmut D Hummler
BACKGROUND: Levels or fluctuations in the partial pressure of CO2 (PCO2) may affect outcomes for extremely low birth weight infants. OBJECTIVES: In an exploratory analysis of a randomized trial, we hypothesized that the PCO2 values achieved could be related to significant outcomes. METHODS: On each treatment day, infants were divided into 4 groups: relative hypocapnia, normocapnia, hypercapnia, or fluctuating PCO2. Ultimate assignment to a group for the purpose of this analysis was made according to the group in which an infant spent the most days...
January 4, 2018: Neonatology
https://www.readbyqxmd.com/read/29282094/nasal-high-flow-therapy-in-very-low-birth-weight-infants-with-mild-respiratory-distress-syndrome-a-single-center-experience
#19
Antonio Di Mauro, Manuela Capozza, Sergio Cotugno, Silvio Tafuri, Francesco Paolo Bianchi, Federico Schettini, Raffaella Panza, Nicola Laforgia
BACKGROUND: Pulmonary disorders and respiratory failure represent one of the most common morbidities of preterm newborns admitted to neonatal intensive care units (NICUs). The use of nasal high-flow therapy (nHFT) has been more recently introduced into the NICUs as a non-invasive respiratory (NIV) support. METHODS: We performed a retrospective study to evaluate safety and effectiveness of nHFT as primary support for infants born < 29 weeks of gestation and/or VLBW presenting with mild Respiratory Distress Syndrome (RDS)...
December 28, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29262432/spontaneous-intraventricular-hemorrhage-when-should-intraventricular-tpa-be-considered
#20
Peter A Abdelmalik, Wendy C Ziai
Spontaneous intracerebral hemorrhage (ICH) is the most common cause of intraventricular hemorrhage (IVH) in adults. Complicating approximately 40% of ICH cases, IVH adds to the morbidity and mortality of this often fatal form of stroke. It is also a severity factor that complicates subarachnoid hemorrhage and traumatic brain injury, along with other less common causes of intracranial bleeding. Medical and surgical interventions to date have focused on limiting ICH and IVH expansion, controlling intracranial pressure, and relieving obstructive hydrocephalus...
December 2017: Seminars in Respiratory and Critical Care Medicine
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