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Neonatal imaging

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https://www.readbyqxmd.com/read/29221746/clinical-and-neuroimaging-characteristics-of-cerebral-sinovenous-thrombosis-in-neonates-undergoing-cardiac-surgery
#1
Nathalie H P Claessens, Selma O Algra, Nicolaas J G Jansen, Floris Groenendaal, Esther de Wit, Alexander A Wilbrink, Felix Haas, Antonius N J Schouten, Rutger A J Nievelstein, Manon J N L Benders, Linda S de Vries
OBJECTIVES: Neonates with congenital heart disease may have an increased risk of cerebral sinovenous thrombosis, but incidence rates are lacking. This study describes the clinical and neuroimaging characteristics of cerebral sinovenous thrombosis in neonates undergoing cardiac surgery. METHODS: Forty neonates (78% male) requiring neonatal univentricular or biventricular cardiac repair using cardiopulmonary bypass were included. All underwent preoperative (median postnatal day 7) and postoperative (median postoperative day 7) magnetic resonance imaging of the brain, including venography, to detect cerebral sinovenous thrombosis...
November 8, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29217332/revisiting-high-frequency-oscillatory-ventilation-in-vitro-and-in-silico-in-neonatal-conductive-airways
#2
REVIEW
Katrin Bauer, Eliram Nof, Josué Sznitman
BACKGROUND: High frequency oscillatory ventilation is often used for lung support in premature neonates suffering from respiratory distress syndrome. Despite its broad use in neonatal intensive care units, there are to date no accepted protocols for the choice of appropriate ventilation parameter settings. In this context, the underlying mass transport mechanisms are still not fully understood. METHODS: We revisit the question of flow phenomena under conventional mechanical ventilation and high frequency oscillatory ventilation in an anatomically-inspired model of neonatal conductive airways spanning the first few airway generations...
November 28, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29212395/prenatal-prediction-of-small-for-gestational-age-neonates-using-mr-imaging-comparison-with-conventional-2d-ultrasound
#3
Andrew Carlin, Caroline Kadji, Riccardo De Angelis, Mieke M Cannie, Jacques C Jani
PURPOSE: To evaluate the performance of estimating fetal weight (EFW) using magnetic resonance (MR) imaging as compared with two-dimensional (2D) ultrasound (US) in the prediction of small-for-gestational age neonates (SGA). MATERIALS & METHODS: Written informed consent was obtained for this Ethical Committee approved study. Between March 2011 and May 2016, women with singleton pregnancies underwent US-EFW and MR-EFW within 48 h before delivery. US-EFW was based on Hadlock et al...
December 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29209885/neuroimaging-findings-associated-with-congenital-zika-virus-syndrome-case-series-at-the-time-of-first-epidemic-outbreak-in-pernambuco-state-brazil
#4
Pedro Pires, Patricia Jungmann, Jully Moura Galvão, Adriano Hazin, Luiza Menezes, Ricardo Ximenes, Gabriele Tonni, Edward Araujo Júnior
PURPOSE: This study aimed to describe the prenatal and postnatal neuroimaging and clinical findings in a clinical series following congenital Zika virus syndrome during the first epidemic Zika virus (ZIKV) outbreak in the State of Pernambuco, Brazil. METHODS: We (the authors) conducted a retrospective study of a prospectively collected case series of fetuses and neonates with microcephaly born to mothers with presumed/confirmed congenital ZIKV syndrome. Prenatal ultrasound findings were reviewed to identify potential central nervous system (CNS) abnormalities...
December 5, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29209032/comparison-of-state-risk-appropriate-neonatal-care-policies-with-the-2012-aap-policy-statement
#5
Charlan D Kroelinger, Ekwutosi M Okoroh, David A Goodman, Sarah M Lasswell, Wanda D Barfield
OBJECTIVE: Compare state policies with standards outlined in the 2012 AAP Policy Statement on Levels of Neonatal Care. STUDY DESIGN: Systematic, web-based review of publicly available policies on levels of care in all states in 2014. Infant risk information, equipment capabilities, and specialty staffing were abstracted from published rules, statutes, and regulations. RESULT: Twenty-two states had a policy on regionalized perinatal care. State policies vary in consistency with the AAP Policy, with 60% of states including standards consistent with Level I criteria, 48% Level II, 14% Level III, and one state with Level IV...
December 5, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29208045/joubert-s-syndrome-and-related-disorders-and-home-based-peritoneal-dialysis-in-east-africa-a-case-report
#6
Grace M Musiime, Doris M W Kinuthia, Donald P Oyatsi, Wangui Manguyu
BACKGROUND: Joubert's syndrome is a rare condition affecting an estimated 1:80,000-1:100,000 individuals. There is underdevelopment of the cerebellar vermis resulting in a characteristic molar tooth sign on cross sectional axial magnetic resonance imaging. It can occur in association with multi-organ involvement; in such cases it is classified as Joubert's syndrome and related disorders. To date, there are no cases of Joubert's syndrome and related disorders from sub-Saharan Africa described in the literature...
December 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29205794/biallelic-mutations-in-lars2-can-cause-perrault-syndrome-type-2-with-neurologic-symptoms
#7
Rika Kosaki, Reiko Horikawa, Eriko Fujii, Kenjiro Kosaki
Perrault syndrome represents a genetically heterogeneous disorder characterized by sensorineural hearing loss in males and females and ovarian dysfunction in females. Causative genes include HARS2, HSD17B4, CLPP, C10orf2, and LARS2. Some patients with Perrault syndrome exhibit neurologic features including learning disability, cerebellar ataxia, and peripheral neuropathy and are classified as type 2 and are clinically separate from those without neurological symptoms other than a hearing loss (type 1). To date, all reported patients with LARS2 mutations (15 patients in 8 families) have been classified as type 1...
December 3, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29204205/a-giant-occipital-encephalocele-in-neonate-with-spontaneous-hemorrhage-into-the-encephalocele-sac-surgical-management
#8
Guru Dutta Satyarthee, Luis Rafael Moscote-Salazar, Nidia Escobar-Hernandez, Jose Aquino-Matus, Paulo Cesar Puac-Polanco, Samer S Hoz, Willem Guillermo Calderon-Miranda
The presence of giant occipital encephalocele represents a surgical challenge. However, preoperative magnetic resonance imaging with venography can help in delineating relation of venous sinus, content of the sac and help classify occipital encephalocele into infra-torcular and torcular depending on the relation with position of torcula. However, the presence of old hemorrhage into encephalocele sac is extremely rare and in the detailed PubMed search, the authors could find one such case, reported by Nath et al...
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29201824/assessment-of-preterm-infants-using-the-bayley-iii-scales-in-korea
#9
Sung Ho Ahn, Soo A Kim
Objective: To assess the well-being of preterm newborns using the Bayley-III scales in a Korean-based population, and to evaluate the perinatal risk factors influencing developmental outcome. Methods: Using the Bayley-III scales, we assessed 120 preterm infants who were referred for evaluation of neurodevelopmental performance. We subdivided them into an extremely preterm group (n=18) and a very/moderate to late preterm group (n=102). Bayley-III mean scores and the rate of infants showing a delay were compared for both groups...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29200690/unusual-presentation-of-metanephric-stromal-tumor-in-a-neonate
#10
Prashant Sadashiv Patil, Abhaya Gupta, Rahul Gupta, Paras L Kothari, Geeta Kekre, Kedar Mudkhedkar, Vishesh Dikshit
Metanephric stromal tumor (MST) of kidney is an under-reported benign stromal specific renal neoplasm with good prognosis. This tumor is to be differentiated from congenital mesoblastic nephroma and clear-cell sarcoma of the kidney. In this case report, we describe the imaging, gross, and microscopic features of MST with ischemic left kidney in a 1-month-old child and discuss treatment with relevant literature.
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29200180/procedural-pain-and-oral-glucose-in-preterm-neonates-brain-development-and-sex-specific-effects
#11
Juliane Schneider, Emma G Duerden, Ting Guo, Karin Ng, Patric Hagmann, Myriam Bickle Graz, Ruth E Grunau, M Mallar Chakravarty, Petra S Hüppi, Anita C Truttmann, Steven P Miller
Our objectives were to determine whether procedural pain and glucose exposure are associated with altered structural and functional brain development differently in preterm males and females, and neurodevelopment at 18-months corrected age. Fifty-one very-preterm neonates (22 males; median[IQR] gestational age 27.6[2.0] weeks) underwent three serial scans including T1-weighted and resting-state functional magnetic resonance imaging (MRI) at median postmenstrual weeks: 29.4, 31.9, and 41.1. Thalamus, basal ganglia, and total brain volumes were segmented...
December 1, 2017: Pain
https://www.readbyqxmd.com/read/29197937/parapharyngeal-neuroglial-heterotopia-appearing-as-high-uptake-on-18f-fdg-pet-case-report-and-literature-review-of-radiographical-findings
#12
Masayuki Kameyama, Tomohiro Kawaguchi, Hidetaka Niizuma, Takenori Ogawa, Kenichi Watanabe, Toshiaki Hayashi, Kanako Sato, Masayuki Kanamori, Mika Watanabe, Yukio Katori, Shigeo Kure, Teiji Tominaga
Parapharyngeal neuroglial heterotopia is a rare entity, and the specific radiographical findings are unclear. We present a case of parapharyngeal neuroglial heterotopia examined with proton magnetic resonance spectroscopy (1H-MRS) and 18F-fluorodesoxyglucose positron emission tomography (18F-FDG PET). Our neonate patient presented with neck mass and polyhydramnios during gestation. Computed tomography and magnetic resonance imaging demonstrated the morphological characteristics, but failed to establish the diagnosis...
December 2, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29196453/physician-preferences-surrounding-urinary-tract-infection-management-in-neonates
#13
Neha S Joshi, Brian P Lucas, Alan R Schroeder
OBJECTIVES: Variability exists in the treatment of neonates with urinary tract infection (UTI), potentially reflecting an overuse of resources. A cross-sectional vignette survey was designed to examine variability in physician preferences for intravenous (IV) antibiotic duration, genitourinary imaging, and prophylactic antibiotics and to evaluate drivers of resource use. METHODS: The survey was administered to a random sample of pediatricians through the American Medical Association's Physician Masterfile...
December 1, 2017: Hospital Pediatrics
https://www.readbyqxmd.com/read/29191246/munc18-1-gene-abnormalities-are-involved-in-neurodevelopmental-disorders-through-defective-cortical-architecture-during-brain-development
#14
Nanako Hamada, Ikuko Iwamoto, Hidenori Tabata, Koh-Ichi Nagata
While Munc18-1 interacts with Syntaxin1 and controls the formation of soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNARE) complex to regulate presynaptic vesicle fusion in developed neurons, this molecule is likely to be involved in brain development since its gene abnormalities cause early infantile epileptic encephalopathy with suppression-burst (Ohtahara syndrome), neonatal epileptic encephalopathy and other neurodevelopmental disorders. We thus analyzed physiological significance of Munc18-1 during cortical development...
November 30, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29187942/-double-aortic-arch-about-two-cases
#15
Sihame Lemouakni, Amale Hassani, Hakim Elyajouri, Mohammed Kmari, Hakim Ourrai, Rachid Abilkacem, Aomar Agadr
Double aortic arch is a rare anomaly of the aortic arch. It is due to the absence of involution of the caudal dorsal aorta. The disease usually begins to show itself in very early clinical signs, already detectable in the neonatal period. Angiography is of great interest to its diagnosis as well as to the choice of the therapeutic approach. Only surgical treatment allows to eliminate tracheoesophageal compression. Surgical mortality rate is low thanks to the progress of postoperative resuscitation. We here report two cases of double aortic arch in order to highlight the contribution of imaging in the difficult diagnosis of this anomaly...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29187760/the-exit-ex-utero-intrapartum-treatment-procedure-from-the-paediatric-ent-perspective
#16
B Pucher, J Szydlowski, K Jonczyk-Potoczna, J Sroczynski
The main principle of the EXIT procedure is to maintain uteroplacental circulation with neonatal anaesthesia by controlled uterine hypotonia. This enables securing the foetal airways and decompress or resect large neck and mediastinal foetal masses. The authors present their experience with use of the EXIT procedure in 7 foetuses in whom evaluation and management of the airways were performed. In 4 patients, the neck mass was surgically removed in the neonatal period, in 1 the propranolol treatment was introduced...
November 30, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/29184182/a-quantitative-method-for-microstructural-analysis-of-myelinated-axons-in-the-injured-rodent-brain
#17
Erik van Tilborg, Caren M van Kammen, Caroline G M de Theije, Maurits P A van Meer, Rick M Dijkhuizen, Cora H Nijboer
MRI studies (e.g. using diffusion tensor imaging) revealed that injury to white matter tracts, as observed in for instance perinatal white matter injury and multiple sclerosis, leads to compromised microstructure of myelinated axonal tracts. Alterations in white matter microstructure are also present in a wide range of neurological disorders including autism-spectrum disorders, schizophrenia and ADHD. Whereas currently myelin quantity measures are often used in translational animal models of white matter disease, it can be an important valuable addition to study the microstructural organization of myelination patterns in greater detail...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29182481/the-use-of-therapeutic-hypothermia-in-neonates-with-perinatal-asphyxia-at-charlotte-maxeke-johannesburg-academic-hospital-a-retrospective-review
#18
Khutso N Sebetseba, Tanusha Ramdin, Daynia Ballot
Therapeutic hypothermia (TH) has become the standard of care to reduce neurological damage following perinatal asphyxia. Current recommendations call for implementation of a standard, evidence-based protocol for the provision of TH. This is particularly challenging in resource-limited settings. This is a retrospective, descriptive study to determine whether neonates at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) are receiving TH according to the unit protocol in place. The study included all neonates with a birth weight greater than 1800 g admitted to the CMJAH neonatal unit from January 1, 2013, to June 30, 2017, before 24 hours of life...
November 28, 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/29181565/postnatal-myocardium-remodelling-generates-inhomogeneity-in-the-architecture-of-the-ventricular-mass
#19
Pierre-Simon Jouk, Ba Luu Truong, Gabrielle Michalowicz, Yves Usson
BACKGROUND: The 3D architecture of the ventricular mass is poorly known, although in vivo imaging techniques show the physiological inhomogeneity of ventricular walls mechanics. Polarized light imaging makes it possible to quantitatively analyse the myosin filament orientation. AIMS: In this paper, we focus on the study the 3D architecture and regional isotropy of myocardial cells. METHODS: Twenty normal human hearts, 10 from the perinatal period and 10 from the post-neonatal period were studied by polarized light microscopy...
November 28, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29181500/perinatal-diagnosis-management-and-follow-up-of-cystic-renal-diseases-a-clinical-practice-recommendation-with-systematic-literature-reviews
#20
Charlotte Gimpel, Fred E Avni, Carsten Bergmann, Metin Cetiner, Sandra Habbig, Dieter Haffner, Jens König, Martin Konrad, Max C Liebau, Lars Pape, Georg Rellensmann, Andrea Titieni, Constantin von Kaisenberg, Stefanie Weber, Paul J D Winyard, Franz Schaefer
Importance: Prenatal and neonatal cystic kidney diseases are a group of rare disorders manifesting as single, multiple unilateral, or bilateral cysts or with increased echogenicity of the renal cortex without macroscopic cysts. They may be accompanied by grossly enlarged kidneys, renal oligohydramnios, pulmonary hypoplasia, extrarenal abnormalities, and neonatal kidney failure. The prognosis is extremely variable from trivial to very severe or even uniformly fatal, which poses significant challenges to prenatal counseling and management...
November 27, 2017: JAMA Pediatrics
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