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https://www.readbyqxmd.com/read/29028948/volumes-of-the-spinal-canal-and-caudal-space-in-children-zero-to-three-years-of-age-assessed-by-magnetic-resonance-imaging-implications-for-volume-dosage-of-caudal-blockade
#1
J Forestier, P Castillo, T Finnbogason, M Lundblad, S Eksborg, P A Lönnqvist
Background: The primary aim of this study was to objectively assess the different spinal and caudal volumes that are of interest for caudal block volume dosing. Methods: Three directly assessed (volume of spinal canal/caudal space, volume of the dural sac and volume of spinal cord) and two derived volumes (volume of the epidural space and cerebrospinal fluid volume) were determined from magnetic resonance images (MRI) in 20 children (zero - three yr of age). The assessed volumes were correlated to age, height and weight...
September 27, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29028764/the-prognostic-value-of-mri-in-moderate-and-severe-traumatic-brain-injury-a-systematic-review-and-meta-analysis
#2
Hourmazd Haghbayan, Amélie Boutin, Mathieu Laflamme, François Lauzier, Michèle Shemilt, Lynne Moore, Ryan Zarychanski, Vincent Douville, Dean Fergusson, Alexis F Turgeon
OBJECTIVES: Traumatic brain injury is a major cause of death and disability, yet many predictors of outcome are not precise enough to guide initial clinical decision-making. Although increasingly used in the early phase following traumatic brain injury, the prognostic utility of MRI remains uncertain. We thus undertook a systematic review and meta-analysis of studies evaluating the predictive value of acute MRI lesion patterns for discriminating clinical outcome in traumatic brain injury...
October 12, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29027088/redescription-of-philometra-filiformis-stossich-1896-nematoda-philometridae-a-gonad-infecting-parasite-of-the-common-pandora-pagellus-erythrinus-linnaeus-sparidae-in-the-mediterranean-sea-including-new-taxonomic-features-revealed-by-sem
#3
František Moravec, Nessrine Ghanmi, Amira Chaabane, Lamia Gargouri, Jean-Lou Justine
The insufficiently known nematode species Philometra filiformis (Stossich, 1896) (Philometridae) is redescribed based on light and scanning electron microscopical (SEM) examinations of specimens collected from the ovaries of the type-host, the common pandora Pagellus erythrinus (Linnaeus) (Perciformes, Sparidae), from off the Mediterranean coast of Tunisia. The male of this species was studied with SEM for the first time, which revealed some new, taxonomically important morphological features. The male posterior end has a caudal mound consisting of two lateral parts widely separated dorsally from each other, four pairs of small adanal papillae, a pair of large but moderately developed papillae located posterior to the cloacal aperture and a pair of small phasmids...
October 12, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/29026672/intraoperative-navigation-guided-resection-of-anomalous-transverse-processes-in-patients-with-bertolotti-s-syndrome
#4
Harish Babu, Carlito Lagman, Terrence T Kim, Marshall Grode, J Patrick Johnson, Doniel Drazin
BACKGROUND: Bertolotti's syndrome is characterized by enlargement of the transverse process at the most caudal lumbar vertebra with a pseudoarticulation between the transverse process and sacral ala. Here, we describe the use of intraoperative three-dimensional image-guided navigation in the resection of anomalous transverse processes in two patients with Bertolotti's syndrome. CASE DESCRIPTIONS: Two patients diagnosed with Bertolotti's syndrome who had undergone the above-mentioned procedure were identified...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29024751/phylogenomics-reveals-habitat-associated-body-shape-divergence-in-oryzias-woworae-species-group-teleostei-adrianichthyidae
#5
Daniel F Mokodongan, Javier Montenegro, Koji Mochida, Shingo Fujimoto, Asano Ishikawa, Ryo Kakioka, Lengxob Yong, Mulis, Renny K Hadiaty, Ixchel F Mandagi, Kawilarang W A Masengi, Nakatada Wachi, Yasuyuki Hashiguchi, Jun Kitano, Kazunori Yamahira
The Oryzias woworae species group, composed of O. asinua, O. wolasi, and O. woworae, is widely distributed in southeastern Sulawesi, an island in the Indo-Australian Archipelago. Deep-elongated body shape divergence is evident among these three species to the extent that it is used as a species-diagnostic character. These fishes inhabit a variety of habitats, ranging from upper streams to ponds, suggesting that the body shape divergence among the three species may reflect adaptation to local environments. First, our geometric morphometrics among eight local populations of this species group revealed that the three species cannot be separated by body shape and that riverine populations had more elongated bodies and longer caudal parts than lacustrine populations...
October 9, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29024472/hearing-crosstalk-the-molecular-conversation-orchestrating-inner-ear-dorsoventral-patterning
#6
REVIEW
Sho Ohta, Gary C Schoenwolf
The inner ear is a structurally and functionally complex organ that functions in balance and hearing. It originates during neurulation as a localized thickened region of rostral ectoderm termed the otic placode, which lies adjacent to the developing caudal hindbrain. Shortly after the otic placode forms, it invaginates to delineate the otic cup, which quickly pinches off of the surface ectoderm to form a hollow spherical vesicle called the otocyst; the latter gives rise dorsally to inner ear vestibular components and ventrally to its auditory component...
October 11, 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/29024163/ultrasonographic-measurement-of-caudal-vena-cava-to-aorta-ratios-for-determination-of-volume-depletion-in-normal-beagle-dogs
#7
Jungmin Kwak, Hakyoung Yoon, Jaehwan Kim, Minjoo Kim, Kidong Eom
A noninvasive method for quantifying hydration status would be helpful for clinical management and for research applications in dogs. This prospective, experimental, pilot study aimed to assess the feasibility of ultrasonographic measurement of the caudal vena cava to aorta ratio as a method for quantifying volume depletion in dogs. In 12 normal beagle dogs, furosemide was administered intravenously at a dose of 1 mg/kg, every 2 h, for 8 h, to induce consecutive volume depletion. Every 30 min after administration, ultrasonographic images of the caudal vena cava and aorta, and physical and biological parameters related to dehydration were acquired...
October 10, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29023733/tonic-inhibition-of-brown-adipose-tissue-sympathetic-nerve-activity-via-muscarinic-acetylcholine-receptors-in-the-rostral-raphe-pallidus
#8
Ellen Paula Santos da Conceição, Christopher J Madden, Shaun F Morrison
We sought to determine if body temperature and energy expenditure are influenced by a cholinergic input to neurons in the rostral raphe pallidus (rRPa), the site of sympathetic premotor neurons controlling brown adipose tissue (BAT) thermogenesis. Nanoinjections of the muscarinic acetylcholine receptor (mAChR) receptor agonist, oxotremorine, or the cholinesterase inhibitor, neostigmine (NEOS), in the rRPa of anaesthetized rats decreased cold-evoked BAT sympathetic nerve activity (SNA, nadirs: -72%, and -95%), BAT temperature (TBAT, -0...
October 10, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29023556/lumbar-spinal-canal-mri-diameter-is-smaller-in-herniated-disc-cauda-equina-syndrome-patients
#9
Nina S Korse, Mark C Kruit, Wilco C Peul, Carmen L A Vleggeert-Lankamp
INTRODUCTION: Correlation between magnetic resonance imaging (MRI) and clinical features in cauda equina syndrome (CES) is unknown; nor is known whether there are differences in MRI spinal canal size between lumbar herniated disc patients with CES versus lumbar herniated discs patients without CES, operated for sciatica. The aims of this study are 1) evaluating the association of MRI features with clinical presentation and outcome of CES and 2) comparing lumbar spinal canal diameters of lumbar herniated disc patients with CES versus lumbar herniated disc patients without CES, operated because of sciatica...
2017: PloS One
https://www.readbyqxmd.com/read/29023058/morphometric-characteristics-of-asian-catfish-hemibagrus-wyckii-bleeker-1858-bagridae-from-the-riau-province-of-indonesia
#10
Netti Aryani, Saberina Hasibuan, Ainul Mardiah, Hafrijal Syandri
BACKGROUND AND OBJECTIVE: Asian Catfish (Hemibagrus wyckii) is an important fish having both food and a high price in the market. These species are categorized as a carnivorous freshwater finfish native in Indonesia and is vulnerable to endangered status. This study was carried out to identify the morphometric characteristics of Hemibagrus wyckii (H. wyckii) from the Koto Panjang Reservoir, Kampar Kanan and Kampar Kiri rivers. MATERIALS AND METHODS: Twenty-five fish were collected from each sampling site...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29020053/method-for-measuring-tri-axial-lumbar-motion-angles-using-wearable-sheet-stretch-sensors
#11
Akio Yamamoto, Hiroyuki Nakamoto, Tokiya Yamaji, Hideo Ootaka, Yusuke Bessho, Ryo Nakamura, Rei Ono
BACKGROUND: Body movements, such as trunk flexion and rotation, are risk factors for low back pain in occupational settings, especially in healthcare workers. Wearable motion capture systems are potentially useful to monitor lower back movement in healthcare workers to help avoid the risk factors. In this study, we propose a novel system using sheet stretch sensors and investigate the system validity for estimating lower back movement. METHODS: Six volunteers (female:male = 1:1, mean age: 24...
2017: PloS One
https://www.readbyqxmd.com/read/29019863/bony-cartilaginous-mismatch-a-radiologic-investigation-into-the-etiology-of-tension-nose-deformity
#12
Michael S Weinstock, Howard D Stupak
BACKGROUND: Tension nose deformity is believed to be due to an "oversized" septal quadrangular cartilage. Prior studies have shown that quadrangular cartilage size is relatively consistent in size in populations. We hypothesize that the tension nose deformity is actually due to an external extrusion of a normal sized septal cartilage from an undersized bony septal encasement. METHODS: A retrospective case-control study of sagittal CT scans was conducted, measuring the perimeter and surface area of the quadrangular cartilage and bony septal aperture in tension nose cases and controls...
October 10, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29019756/imaging-of-skeletal-disorders-caused-by-fibroblast-growth-factor-receptor-gene-mutations
#13
Kiran M Sargar, Achint K Singh, Simon C Kao
Fibroblast growth factors and fibroblast growth factor receptors (FGFRs) play important roles in human axial and craniofacial skeletal development. FGFR1, FGFR2, and FGFR3 are crucial for both chondrogenesis and osteogenesis. Mutations in the genes encoding FGFRs, types 1-3, are responsible for various skeletal dysplasias and craniosynostosis syndromes. Many of these disorders are relatively common in the pediatric population, and diagnosis is often challenging. These skeletal disorders can be classified based on which FGFR is affected...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29019574/effects-of-dimethylsulfoxide-and-pentoxifylline-in-the-vitality-of-cutaneous-flaps-in-rats
#14
Stephanie Luzia da Costa Pedretti, Cícero de Lima Rena, Maria Christina Marques Nogueira Castãnon, Ana Paula do Nascimento Duque, Fernando Henrique Pereira, Tarcizo Afonso Nunes
OBJECTIVES: to verify the influence of dimethylsulfoxide and pentoxifylline on the vitality of cutaneous flaps in rats and the tissue repair process. METHODS: were studied 30 Wistar rats, submitting them to a 2cm wide by 8cm long dorsal cutaneous flap, of caudal base. We distributed the animals in three groups: Control Group (n=10) with application gauze moistened with 0.9% Saline in the flap bed for 30 seconds; Dimethylsulfoxide group (n=10), with administration of 1ml of 5% dimethylsulfoxide divided into five injections of 0...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/29018191/d-serine-released-by-astrocytes-in-brainstem-regulates-breathing-response-to-co2-levels
#15
S Beltrán-Castillo, M J Olivares, R A Contreras, G Zúñiga, I Llona, R von Bernhardi, J L Eugenín
Central chemoreception is essential for adjusting breathing to physiological demands, and for maintaining CO2 and pH homeostasis in the brain. CO2-induced ATP release from brainstem astrocytes stimulates breathing. NMDA receptor (NMDAR) antagonism reduces the CO2-induced hyperventilation by unknown mechanisms. Here we show that astrocytes in the mouse caudal medullary brainstem can synthesize, store, and release D-serine, an agonist for the glycine-binding site of the NMDAR, in response to elevated CO2 levels...
October 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28994206/the-computed-tomographic-tree-in-bud-pattern-characterization-and-comparison-with-radiographic-and-clinical-findings-in-36-cats
#16
Harriet Hahn, Swan Specchi, Isabelle Masseau, Carol Reinero, Ghita Benchekroun, Jaime Rechy, Gabriela Seiler, Pascaline Pey
In humans, a CT "tree-in-bud" pattern has been described as a characteristic of centrilobular bronchiolar dilation, with bronchiolar plugging by mucus, pus, or fluid. Aims of this retrospective, descriptive, multi-center study were to characterize the CT appearance of a "tree-in-bud" pattern in a group of cats, and compare this pattern with radiographic and clinical findings. Databases from four hospitals were searched during the period of January 2012 to September 2015 and cats with thoracic radiographs, thoracic CT scans and CT reports describing findings consistent with a "tree-in-bud" pattern were included...
October 9, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28993708/body-mass-index-is-associated-with-cortical-thinning-with-different-patterns-in-mid-and-late-life
#17
M E Shaw, P S Sachdev, W Abhayaratna, K J Anstey, N Cherbuin
OBJECTIVE: High BMI at midlife is associated with increased risk of dementia as well as faster decline in cognitive function. In late-life, however, high BMI has been found to be associated with both increased and decreased dementia risk. The objective of this study was to investigate the neural substrates of this age-related change in BMI risk. METHODS: We measured longitudinal cortical thinning over the whole brain, based on MRI scans for 910 individuals aged 44 to 66 years at baseline...
October 10, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28993127/retrospective-cohort-study-of-combined-approach-for-trunk-reconstruction-using-arteriovenous-loops-and-free-flaps
#18
Andreas Arkudas, Raymund E Horch, Susanne Regus, Alexander Meyer, Werner Lang, Marweh Schmitz, Anja M Boos, Ingo Ludolph, Justus P Beier
Defect reconstruction of the trunk can be performed using microsurgical free flap transplantation. In cases of missing or inappropriate recipient vessels, microsurgical defect reconstruction of the trunk can be achieved by combining free flaps with arteriovenous loops. Here we present our 5-year experience of trunk reconstruction using AV loops and free flaps in a retrospective evaluation. We analyzed 32 cases of trunk reconstruction using a combined approach of free flap transplantation and arteriovenous loops between 2011 and 2016 regarding postoperative complications and perioperative course...
September 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28992962/the-long-and-short-term-variability-of-breathing-induced-tumor-motion-in-lung-and-liver-over-the-course-of-a-radiotherapy-treatment
#19
Jennifer Dhont, Jef Vandemeulebroucke, Manuela Burghelea, Kenneth Poels, Tom Depuydt, Robbe Van Den Begin, Cyril Jaudet, Christine Collen, Benedikt Engels, Truus Reynders, Marlies Boussaer, Thierry Gevaert, Mark De Ridder, Dirk Verellen
PURPOSE: To evaluate the short and long-term variability of breathing induced tumor motion. MATERIALS AND METHODS: 3D tumor motion of 19 lung and 18 liver lesions captured over the course of an SBRT treatment were evaluated and compared to the motion on 4D-CT. An implanted fiducial could be used for unambiguous motion information. Fast orthogonal fluoroscopy (FF) sequences, included in the treatment workflow, were used to evaluate motion during treatment. Several motion parameters were compared between different FF sequences from the same fraction to evaluate the intrafraction variability...
October 6, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28990676/arthroscopic-approach-and-anatomy-of-the-stifle-joint-in-the-rabbit
#20
Sarah Torrey Peters, Markus Wilke, Tanja Schmid
OBJECTIVE: To describe a technique and normal findings for arthroscopy of the stifle in rabbits. STUDY DESIGN: Cadaver study. ANIMALS: Twenty cadaveric stifles from New Zealand White rabbits were examined. METHODS: The arthroscope was placed through a medial portal, and instrument portals were created on the lateral aspect of the joint. The same portals were used for examination of the entire joint and palpation of structures with a probe...
October 9, 2017: Veterinary Surgery: VS
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