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https://www.readbyqxmd.com/read/28937832/aberrant-plasticity-in-the-hippocampus-after-neonatal-seizures
#1
Xiaoqian Zhang, Huiling Qu, Ying Wang, Shanshan Zhao, Ting Xiao, Chuansheng Zhao, Weiyu Teng
Neonatal seizures are the most frequent type of neurological disorder and those newborn babies that experience seizures carry an increased risk of epileptogenesis and other long-term morbidities. The newly generated dentate granule cells (DGCs) integrate functionally into the mature hippocampal network by continuously forming connections with their targets but this process of adult neurogenesis can be influenced by seizures. When compared to adult seizures, neonatal seizures may exert different effects on neurogenesis due to the high resistance of the newborn's neurons to cell death combined with the inherent high sensitivity to seizures in the immature brain...
September 22, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28931341/the-neurotoxic-effects-of-prenatal-gabapentin-and-oxcarbazepine-exposure-on-newborn-rats
#2
Zuleyha Erisgin, Bulent Ayas, Jens R Nyengaard, N Ercument Beyhun, Yuksel Terzi
Teratogenicity is a problematic issue for pregnant women because of x-ray radiation, drugs, genetic and unknown variables. First generation antiepileptic drugs (AED) like valproic acid are well-known teratogens for developing foetuses. However, their usage is necessary in order to prevent maternal seizures. The underlying mechanism of birth defects associated with AED exposure remains unclear and information about the neurotoxic effects of prenatal exposure to AED is still limited. Oxcarbazepine (OXC) and gabapentin (GBP) are second generation antiepileptic drugs...
September 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28930990/application-of-an-amplitude-integrated-eeg-monitor-cerebral-function-monitor-to-neonates
#3
Nora Bruns, Susanne Blumenthal, Irmgard Meyer, Susanne Klose-Verschuur, Ursula Felderhoff-Müser, Hanna Müller
Amplitude-integrated EEG (aEEG) is an easily accessible technique to monitor the electrocortical activity in preterm and term infants in neonatal intensive care units (NICUs). This method was first used to monitor newborns after asphyxia, providing information about future neurological outcomes. The aEEG is also helpful to select newborns who benefit from cooling. The aEEG monitoring of preterm infants is becoming more widespread, as various studies have shown that neurodevelopmental outcome is related to early aEEG tracings...
September 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28926830/a-distinctive-ictal-amplitude-integrated-electroencephalography-pattern-in-newborns-with-neonatal-epilepsy-associated-with-kcnq2-mutations
#4
Ana Vilan, José Mendes Ribeiro, Pasquale Striano, Sarah Weckhuysen, Lauren C Weeke, Eva Brilstra, Linda S de Vries, Maria Roberta Cilio
BACKGROUND: Recurrent and prolonged seizures are harmful for the developing brain, emphasizing the importance of early seizure recognition and effective therapy. Amplitude-integrated electroencephalography (aEEG) has become a valuable tool to diagnose epileptic seizures, and, in parallel, genetic etiologies are increasingly being recognized, changing the paradigm of the workup and management of neonatal seizures. OBJECTIVE: To report the ictal aEEG pattern in neonates with KCNQ2-related epilepsy...
September 20, 2017: Neonatology
https://www.readbyqxmd.com/read/28922194/benign-neonatal-sleep-myoclonus-evokes-somatosensory-responses
#5
Emma Losito, Monika Eisermann, Patricia Vignolo, Shushanik Hovhannisyan, Jean François Magny, Anna Kaminska
PURPOSE: Benign neonatal sleep myoclonus is a common nonepileptic condition occurring in neurologically normal full-term newborns. During jerks, EEG has always been described as normal. The aim of this study was to describe EEG changes associated with the myoclonic jerks. METHODS: Polygraphic video-EEG recordings of four full-term neonates presenting benign neonatal sleep myoclonus were studied. Myoclonic jerks were analyzed regarding their topography, frequency, propagation pattern, and reflex component...
September 14, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28901996/intracranial-hemorrhage-in-congenital-bleeding-disorders
#6
Shadi Tabibian, Hoda Motlagh, Majid Naderi, Akbar Dorgalaleh
: Intracranial hemorrhage (ICH), as a life-threatening bleeding among all kinds of congenital bleeding disorders (CBDs), is a rare manifestation except in factor XIII (FXIII) deficiency, which is accompanied by ICH, early in life, in about one-third of patients. Most inherited platelet function disorders (IPFDs) are mild to moderate bleeding disorders that can never experience a severe bleeding as in ICH; however, Glanzmann's thrombasthenia, a common and severe inherited platelet function disorder, can lead to ICH and occasional death...
September 9, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28867037/-place-of-eeg-in-the-management-of-arterial-ischemic-stroke-newborn
#7
S Nguyen The Tich
The EEG has a key role in the management of neonatal seizures, which are the typical mode of revelation of neonatal ischemic stroke. The EEG should be started as soon as possible in case of suspected seizure. Some EEG features are evocative of neonatal stroke, typically asymmetry of background activity with the presence of focal spikes and focal seizures. The EEG should be prolonged and always associated with a video as pauci-symptomatic or subclinical seizures are frequent, including some status epilepticus...
September 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28867032/-revelation-of-the-circumstances-of-the-accident-vascular-arterial-ischemic-brain-in-at-term-or-near-term-and-referral
#8
F Cneude, J-F Diependaele, J-L Chabernaud
The neonatal arterial ischemic stroke is an emergency. Recurrent focal seizures, generally occurring in the first 24-72 hours after birth, are the commonest first clinical signs. When neonatal arterial ischemic stroke is suspected, optimal initial management involves careful supportive care including treatment of clinical and frequent or prolonged subclinical seizures, correction of the possible metabolic disorders and their prevention. Contrary to hypoxic ischemic encephalopathy, therapeutic hypothermia is not indicated...
September 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28817111/prospective-cohort-study-for-identification-of-underlying-genetic-causes-in-neonatal-encephalopathy-using-whole-exome-sequencing
#9
Theodora U J Bruun, Caro-Lyne DesRoches, Diane Wilson, Vann Chau, Tadashi Nakagawa, Masahiro Yamasaki, Shinya Hasegawa, Toshiyuki Fukao, Christian Marshall, Saadet Mercimek-Andrews
PurposeNeonatal encephalopathy, which is characterized by a decreased level of consciousness, occurs in 1-7/1,000 live-term births. In more than half of term newborns, there is no identifiable etiological factor. To identify underlying genetic defects, we applied whole-exome sequencing (WES) in term newborns with neonatal encephalopathy as a prospective cohort study.MethodsTerm newborns with neonatal encephalopathy and no history of perinatal asphyxia were included. WES was performed using patient and both parents' DNA...
August 17, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28811085/the-use-of-phenobarbital-and-other-anti-seizure-drugs-in-newborns
#10
REVIEW
Mohamed El-Dib, Janet S Soul
Neonatal seizures constitute the most frequent presenting neurologic sign encountered in the neonatal intensive care unit. Despite limited efficacy and safety data, phenobarbital continues to be used near-universally as the first-line anti-seizure drug (ASD) in neonates. The choice of second-line ASDs varies by provider and institution, and is still not supported by sufficient scientific evidence. In this review, we discuss the available evidence supporting the efficacy, mechanism of action, potential adverse effects, key pharmacokinetic characteristics such as interaction with therapeutic hypothermia, logistical issues, and rationale for use of neonatal ASDs...
October 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28806489/characteristics-of-spontaneous-births-attended-by-midwives-and-physicians-in-us-hospitals-in-2014
#11
Patrick Thornton
INTRODUCTION: This study compares characteristics and birth outcomes of women attended by certified nurse-midwives/certified midwives (midwives) and physicians in US hospitals in 2014. METHODS: Data reported in 2014 on the 2003 version of the US birth certificate were examined. Spontaneous vaginal births attributed to midwives and physicians and occurring in hospitals were included. Demographic and risk profiles and adjusted odds ratios for maternal and newborn outcomes were compared by provider type...
August 14, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28802630/infantile-hypophosphatasia-combined-with-vitamin-b6-responsive-seizures-and-reticular-formation-lesions-on-magnetic-resonance-imaging-a-case-report
#12
Mitsuharu Fukazawa, Junichiro Tezuka, Momoko Sasazuki, Natsuko Masumoto, Haruhisa Baba, Takehiko Doi, Yasushi Tsutsumi, Yuji Mizuno, Futoshi Mihara, Hideki Nakayama
BACKGROUND: Hypophosphatasia (HPP) is a rare genetic disorder characterized by rachitic bone manifestations and a low serum alkaline phosphatase (ALP) level. It is caused by mutations in the tissue non-specific alkaline phosphatase (TNSALP) gene, which encodes the tissue non-specific isozyme of ALP. HPP patients exhibit various presentations depending on their age at onset, such as infantile HPP combined with vitamin B6-responsive seizures. CASE PRESENTATION: A newborn with infantile HPP presented with tonic convulsions from day 5 after birth and received intravenous vitamin B6 (10mg/kg/day pyridoxal phosphate)...
August 9, 2017: Brain & Development
https://www.readbyqxmd.com/read/28801146/bh4-deficiency-identified-in-a-neonatal-screening-program-for-hyperphenylalaninemia
#13
Cezar Antonio Abreu de Souza, Michelle Rosa Andrade Alves, Rosangelis Del Lama Soares, Viviane de Cássia Kanufre, Valéria de Melo Rodrigues, Rocksane de Carvalho Norton, Ana Lúcia Pimenta Starling, Marcos José Burle de Aguiar
OBJECTIVES: To show the general prevalence and to characterize tetrahydrobiopterin (BH4) deficiencies with hyperphenylalaninemia, identified by the Neonatal Screening Program of the State of Minas Gerais (NSPMG). METHODS: Descriptive study of patients with BH4 deficiency identified by the NSPMG. RESULTS: The prevalence found was 2.1 for 1,000,000 live births, with a frequency of 1.71% among hyperphenylalaninemias. There were four cases (40%) with 6-pyruvoyl-tetrahydropterin synthase (PTPS) deficiency, three with GTP cyclohydrolase I - autosomal recessive form (GTPCH I) deficiency, and three with dihydropteridine reductase (DHPR) deficiency (30% each)...
August 8, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28798906/cerebral-sinovenous-thrombosis
#14
REVIEW
Rebecca Ichord
Cerebral sinovenous thrombosis (CSVT) is a rare but serious cerebrovascular disorder affecting children from the newborn period through childhood and adolescence. The incidence is estimated at 0.6/100,000/year, with 30-50% occurring in newborns. Causes are diverse and are highly age dependent. Acute systemic illness is the dominant risk factor among newborns. In childhood CSVT, acute infections of the head and neck such as mastoiditis are most common, followed by chronic underlying diseases such as nephrotic syndrome, cancer, and inflammatory bowel disease...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28741228/craniocerebral-birth-injuries-in-term-newborn-infants-a-retrospective-series
#15
Pieter Nachtergaele, Frank Van Calenbergh, Lieven Lagae
OBJECTIVE: In an attempt to further define the spectrum of cranial birth injuries, we analyzed 21 consecutive cranial birth injuries in term neonates presenting to the neurosurgical department of our institution over the period 1994-2015. METHODS: We performed a retrospective chart review from the medical records of the University Hospitals of the KU Leuven, from 1994 to 2015. We included 21 infants of 36-week gestational age or older with a diagnosis of cranial birth injury...
July 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28733343/profile-of-neonatal-epilepsies-characteristics-of-a-prospective-us-cohort
#16
MULTICENTER STUDY
Renée A Shellhaas, Courtney J Wusthoff, Tammy N Tsuchida, Hannah C Glass, Catherine J Chu, Shavonne L Massey, Janet S Soul, Natrujee Wiwattanadittakun, Nicholas S Abend, Maria Roberta Cilio
OBJECTIVE: Although individual neonatal epilepsy syndromes are rare, as a group they represent a sizable subgroup of neonatal seizure etiologies. We evaluated the profile of neonatal epilepsies in a prospective cohort of newborns with seizures. METHODS: Consecutive newborns with seizures were enrolled in the Neonatal Seizure Registry (an association of 7 US children's hospitals). Treatment and diagnostic testing were at the clinicians' discretion. Neonates with seizures related to epileptic encephalopathies (without structural brain abnormalities), brain malformations, or benign familial epilepsies were included in this analysis...
August 29, 2017: Neurology
https://www.readbyqxmd.com/read/28728911/effects-of-riluzole-on-spinal-seizure-like-activity-in-the-brainstem-spinal-cord-preparation-of-newborn-rat
#17
Shih Tien Lin, Masayuki Ohbayashi, Toshinori Yamamoto, Hiroshi Onimaru, Mari Kogo
Riluzole blocks persistent Na(+) current, inhibits generation of neuronal bursts and decreases glutamate-induced excitotoxicity. In previous studies of respiratory activity, riluzole suppressed inspiratory-related burst generation activity in rat slice or en bloc preparations. We examined riluzole's effects on inspiratory burst generation and drug-induced seizure-like activity in newborn rat en bloc preparations. Medulla-spinal cord preparations from postnatal day 0-3 Wistar rats were isolated under deep isoflurane anesthesia and were superfused with artificial cerebrospinal fluid equilibrated with 95% O2 and 5% CO2, pH 7...
July 17, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28713955/altered-axon-initial-segment-in-hippocampal-newborn-neurons-associated-with-recurrence-of-temporal-lobe-epilepsy-in-rats
#18
Tian-Tian Liu, Li Feng, Heng-Fang Liu, Yi Shu, Bo Xiao
Hippocampal neurogenesis in temporal lobe epilepsy (TLE) may result in alteration of the excitability of neurons, which contributes to spontaneous recurrent seizures. Axon initial segment (AIS) structural and functional plasticity is important in the control of neuronal excitability. It remains to be elucidated whether the plasticity of AIS occurs in hippocampal newly‑generated neurons that are involved in recurrent seizures following pilocarpine‑induced status epilepticus (SE). The present study first established a pilocarpine‑induced TLE rat model to assess the features of newborn neurons and AIS plasticity alterations using double immunofluorescence staining of Ankyrin G and doublecortin (DCX)...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28705869/auditory-cortex-interneuron-development-requires-cadherins-operating-hair-cell-mechanoelectrical-transduction
#19
Baptiste Libé-Philippot, Vincent Michel, Jacques Boutet de Monvel, Sébastien Le Gal, Typhaine Dupont, Paul Avan, Christine Métin, Nicolas Michalski, Christine Petit
Many genetic forms of congenital deafness affect the sound reception antenna of cochlear sensory cells, the hair bundle. The resulting sensory deprivation jeopardizes auditory cortex (AC) maturation. Early prosthetic intervention should revive this process. Nevertheless, this view assumes that no intrinsic AC deficits coexist with the cochlear ones, a possibility as yet unexplored. We show here that many GABAergic interneurons, from their generation in the medial ganglionic eminence up to their settlement in the AC, express two cadherin-related (cdhr) proteins, cdhr23 and cdhr15, that form the hair bundle tip links gating the mechanoelectrical transduction channels...
July 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28666184/pregnancy-outcome-in-women-with-epilepsy-in-western-china-a-prospective-hospital-based-study
#20
Shixu He, Huili Zhu, Xiangmiao Qiu, Xi Zhu, Anjiao Peng, Jianan Duan, Lei Chen
OBJECTIVE: Gaps exist in the diagnosis and treatment of women with epilepsy (WWE) between China and Euro-American countries. We aim to find out and share our experience of the multidisciplinary integrated treatment for WWE. METHODS: We prospectively registered WWE who were diagnosed by both epileptologists and obstetrician in our green way system for the past 5years (2009-2015). Registration information include years of education, epilepsy history, seizure type and frequency, pregnancy and delivery complications, delivery mode, and Apgar score of newborn...
June 27, 2017: Epilepsy & Behavior: E&B
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