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https://www.readbyqxmd.com/read/28918395/non-invasive-high-frequency-oscillatory-ventilation-in-preterm-infants-a-randomised-controlled-cross-over-trial
#1
Daniel Klotz, Hendryk Schneider, Stefan Schumann, Benjamin Mayer, Hans Fuchs
OBJECTIVE: Non-invasive high-frequency oscillatory ventilation (nHFOV) has recently been described as a novel mode of respiratory support for premature infants. This study was designed to determine whether nHFOV decreases CO2 partial pressure (pCO2) in premature infants more effectively than non-invasive continuous positive airway pressure (nCPAP). DESIGN: Non-blinded prospective randomised controlled cross-over study. SETTING: University Medical Center tertiary neonatal intensive care unit...
September 16, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28918060/outcomes-of-ahmed-glaucoma-valve-revision-in-pediatric-glaucoma
#2
Ahmed Mansour Al-Omairi, Aliah H Al Ameri, Sami Al-Shahwan, Arif O Khan, Ibrahim Al-Jadaan, Ahmed Mousa, Deepak P Edward
PURPOSE: Encapsulation of the Ahmed glaucoma valve (AGV) plate is a common cause for postoperative elevation of intraocular pressure, especially in children. Many reports have described the outcomes of AGV revision in adults. However, the outcomes of AGV revision in children are poorly documented. The aim of this study was to determine the outcomes of AGV revision in children. DESIGN: Retrospective cross sectional study METHODS: A retrospective chart review of patients less than 15 years of age who underwent AGV revision with a minimum postoperative follow-up of six months was conducted...
September 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28917836/erythromycin-encapsulation-in-nanoemulsion-based-delivery-systems-for-treatment-of-helicobacter-pylori-infection-protection-and-synergy
#3
Le Tuyet Chau Tran, Claire Gueutin, Ghislaine Frebourg, Christophe Burucoa, Vincent Faivre
Poorly water-soluble and unstable compounds are difficult to develop as drug products using conventional formulation techniques. The aim of the present study was to develop and evaluate a nanoformulation prepared by a hot high-pressure homogenization method, which was a scalable and solvent-free process. We successfully prepared stable nanodispersions to protect a labile antibiotic, erythromycin. The mean diameter of the dispersed droplets was approximately 150 nm, and size distribution was unimodal. Dispersion was physically stable at room temperature for over six months...
September 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28917828/a-model-of-blood-supply-to-the-brain-via-the-carotid-arteries-effects-of-obstructive-vs-sclerotic-changes
#4
O Onaizah, T L Poepping, M Zamir
The carotid artery is one of the major supply routes of blood to the brain and a common site of vascular disease. Obstructive and sclerotic disorders within the carotid artery impact local blood flow patterns as well as overall impedance and blood supply to the brain. A lumped parameter model and an experimental in-vitro flow loop were used to study the effects of local stenosis and stiffness in the carotid artery based on a family of phantoms with different degrees of stenosis and compliance. The model also allows independent examination of the effects of downstream resistance and compliance...
September 13, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28917733/stabilization-of-gas-phase-uranyl-complexes-enables-rapid-speciation-using-electrospray-ionization-and-ion-mobility-mass-spectrometry
#5
Austen L Davis, Brian H Clowers
Significant challenges exist when characterizing f-element complexes in solution using traditional approaches such as electrochemical and spectroscopic techniques as they do not always capture information for lower abundance species. However, provided a metal-complex with sufficient stability, soft ionization techniques such as electrospray offer a means to quantify and probe the characteristics of such systems using mass spectrometry. Unfortunately, the gas-phase species observed in ESI-MS systems do not always reflect the solution phase distributions due to the inherent electrochemical mechanism of the electrospray process, ion transfer from ambient to low pressures conditions, and other factors that are related to droplet evaporation...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917579/microcirculation-in-the-murine-liver-a-computational-fluid-dynamic-model-based-on-3d-reconstruction-from-in-vivo-microscopy
#6
Monica Piergiovanni, Elena Bianchi, Giada Capitani, Irene Li Piani, Lucia Ganzer, Luca G Guidotti, Matteo Iannacone, Gabriele Dubini
The liver is organized in hexagonal functional units - termed lobules - characterized by a rather peculiar blood microcirculation, due to the presence of a tangled network of capillaries - termed sinusoids. A better understanding of the hemodynamics that governs liver microcirculation is relevant to clinical and biological studies aimed at improving our management of liver diseases and transplantation. Herein, we built a CFD model of a 3D sinusoidal network, based on in vivo images of a physiological mouse liver obtained with a 2-photon microscope...
September 2, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28917437/effects-of-intravenous-administration-of-fentanyl-and-lidocaine-on-hemodynamic-responses-following-endotracheal-intubation
#7
Amir Masoud Hashemian, Hamid Zamani Moghadam Doloo, Maziar Saadatfar, Roya Moallem, Maryam Moradifar, Raheleh Faramarzi, Mohammad Davood Sharifi
OBJECTIVES: To compare the effects of intravenous fentanyl and lidocaine on hemodynamic changes following endotracheal intubation in patients requiring Rapid Sequence Intubation (RSI) in the emergency department (ED). METHODS: A single-centered, prospective, simple non-randomized, double-blind clinical trial was conducted on 96 patients who needed RSI in Edalatian ED. They were randomly divided into three groups (fentanyl group (F), lidocaine group (L), and fentanyl plus lidocaine (M) as our control group)...
July 21, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28917372/transcendental-meditation-for-lowering-blood-pressure-an-overview-of-systematic-reviews-and-meta-analyses
#8
REVIEW
Soo Liang Ooi, Melisa Giovino, Sok Cheon Pak
BACKGROUND: Transcendental meditation (TM) is a stress reduction technique that can potentially lower blood pressure (BP) safely. The American Heart Association recommends that TM may be considered in clinical practice. OBJECTIVE: To provide an overview of all systematic reviews and meta-analyses of TM on BP for evidence-informed clinical decision making. METHOD: Systematic searches of PubMed, EBSCOhost, Cochrane Library, Web of Science, Embase, and PsycINFO for all systematic reviews and/or meta-analyses of randomized controlled trials (RCTs) with TM as an intervention, and outcome measures include systolic BP (SBP) and diastolic BP (DBP)...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28917324/targeted-anthelmintic-treatment-of-parasitic-gastroenteritis-in-first-grazing-season-dairy-calves-using-daily-live-weight-gain-as-an-indicator
#9
A Jackson, K A Ellis, J McGoldrick, N N Jonsson, M J Stear, A B Forbes
Control of parasitic gastroenteritis in cattle is typically based on group treatments with anthelmintics, complemented by grazing management, where feasible. However, the almost inevitable evolution of resistance in parasitic nematodes to anthelmintics over time necessitates a reappraisal of their use in order to reduce selection pressure. One such approach is targeted selective treatment (TST), in which only individual animals that will most benefit are treated, rather than whole groups of at-risk cattle. This study was designed to assess the feasibility of implementing TST on three commercial farms, two of which were organic...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28916535/spinal-cord-perfusion-pressure-predicts-neurologic-recovery-in-acute-spinal-cord-injury
#10
Jordan W Squair, Lise M Bélanger, Angela Tsang, Leanna Ritchie, Jean-Marc Mac-Thiong, Stefan Parent, Sean Christie, Christopher Bailey, Sanjay Dhall, John Street, Tamir Ailon, Scott Paquette, Nicolas Dea, Charles G Fisher, Marcel F Dvorak, Christopher R West, Brian K Kwon
OBJECTIVE: To determine whether spinal cord perfusion pressure (SCPP) as measured with a lumbar intrathecal catheter is a more predictive measure of neurologic outcome than the conventionally measured mean arterial pressure (MAP). METHODS: A total of 92 individuals with acute spinal cord injury were enrolled in this multicenter prospective observational clinical trial. MAP and CSF pressure (CSFP) were monitored during the first week postinjury. Neurologic impairment was assessed at baseline and at 6 months postinjury...
September 15, 2017: Neurology
https://www.readbyqxmd.com/read/28916397/computational-assessment-of-model-based-wave-separation-using-a-database-of-virtual-subjects
#11
Bernhard Hametner, Magdalena Schneider, Stephanie Parragh, Siegfried Wassertheurer
The quantification of arterial wave reflection is an important area of interest in arterial pulse wave analysis. It can be achieved by wave separation analysis (WSA) if both the aortic pressure waveform and the aortic flow waveform are known. For better applicability, several mathematical models have been established to estimate aortic flow solely based on pressure waveforms. The aim of this study is to investigate and verify the model-based wave separation of the ARCSolver method on virtual pulse wave measurements...
September 12, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28916241/relationship-of-echocardiographic-epicardial-fat-thickness-and-epicardial-fat-volume-by-computed-tomography-with-coronary-artery-calcification-data-from-the-caesar-study
#12
Byung Jin Kim, Jung Gyu Kang, Sung Ho Lee, Jong Young Lee, Ki Chul Sung, Bum Soo Kim, Jin Ho Kang
BACKGROUND AND AIMS: No study has assessed the association between echocardiographic epicardial fat thickness (EFT) and computed tomography (CT)-based epicardial fat volume (EFV) and coronary artery calcification. The aim of this study is to evaluate the association between EFT and EFV and coronary artery calcification. METHODS: Among the 2,299 individuals enrolled in the CArdiometabolic risk, Epicardial fat, and Subclinical Atherosclerosis Registry (CAESAR) study, 2,276 (1,851 men; mean age 45 ± 8...
September 12, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28916216/coronary-artery-bypass-grafting-bundled-payment-proposal-will-have-significant-financial-impact-on-hospitals
#13
Robert B Hawkins, J Hunter Mehaffey, Kenan W Yount, Leora T Yarboro, Clifford Fonner, Irving L Kron, Mohammed Quader, Alan Speir, Jeffrey Rich, Gorav Ailawadi
OBJECTIVES: The Centers for Medicare and Medicaid Services plans to institute a 5-year trial of bundled payments for coronary artery bypass grafting through 90 days after discharge. To investigate the impact, we reviewed actual inpatient costs for patients undergoing bypass surgery relative to the target price. METHODS: A total of 13,276 Medicare patients with estimated cost data underwent isolated coronary artery bypass grafting from 2008 to 2015 in 18 hospitals over 8 Medicare-defined regions within the Commonwealth of Virginia...
July 29, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28916208/intra-and-inter-session-reliability-of-traditional-and-entropy-based-variables-describing-stance-on-a-wobble-board
#14
Lucia Bizovska, Miroslav Janura, Zdenek Svoboda, Martin Cerny, Jana Krohova, Maros Smondrk
A wobble board (WB) is a balance rehabilitation tool that is used in physiotherapy to improve strength and stability. The WB tested in this study includes a sensory module for measuring patients' tilt and rotation during stance. The aim of this study was to assess the reliability and validity of a balance measurement using a WB. Thirty healthy young adults participated in this study. The participants stood on the WB to simultaneously record the tilt of the WB and the center of pressure data using a force plate...
September 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28915907/effect-of-a-mother-s-recorded-voice-on-emergence-from-general-anesthesia-in-pediatric-patients-study-protocol-for-a-randomized-controlled-trial
#15
Seok Young Song, Sang Gyu Kwak, Eugene Kim
BACKGROUND: Emergence delirium is a behavioral disturbance after general anesthesia in children and may distress both the patients and the primary caregivers, such as parents and medical staff, looking after the patients. Various medical and emotional interventions have been investigated to reduce emergence delirium; however, none are completely effective. This trial intends to assess whether the mother's recorded voice can reduce this adverse post-anesthesia event and facilitate arousal from general anesthesia...
September 15, 2017: Trials
https://www.readbyqxmd.com/read/28915871/virtual-patients-in-the-acquisition-of-clinical-reasoning-skills-does-presentation-mode-matter-a-quasi-randomized-controlled-trial
#16
Fabian Schubach, Matthias Goos, Götz Fabry, Werner Vach, Martin Boeker
BACKGROUND: The objective of this study is to compare two different instructional methods in the curricular use of computerized virtual patients in undergraduate medical education. We aim to investigate whether using many short and focused cases - the key feature principle - is more effective for the learning of clinical reasoning skills than using few long and systematic cases. METHODS: We conducted a quasi-randomized, non-blinded, controlled parallel-group intervention trial in a large medical school in Southwestern Germany...
September 15, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28915772/hypermobility-in-adolescent-athletes-pain-functional-ability-quality-of-life-and-musculoskeletal-injuries
#17
Heidi Schmidt, Trine Lykke Pedersen, Tina Junge, Raoul Engelbert, Birgit Juul-Kristensen
Study Design Cross-sectional. Background Generalised joint hypermobility (GJH) may increase pain and likelihood of injuries and also decrease function and health-related quality of life (HRQoL) in elite level adolescent athletes. Objectives To assess the prevalence of GJH in elite level adolescent athletes, and to study the association of GJH with pain, function, HRQoL, and musculoskeletal injuries. Methods A total of 132 elite level adolescent athletes (36 males; 96 females), mean (SD) age 14.0 (0.9) years, participated (n=22 ballet dancers, n=57 teamgym gymnasts, n=53 team handball players)...
September 15, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28915536/protective-effect-of-the-standardized-extract-of-ginkgo-biloba-egb761-against-hypertension-with-hypercholesterolemia-induced-renal-injury-in-rats-insights-in-the-underlying-mechanisms
#18
Ahmed O Abdel-Zaher, Hanan S M Farghaly, Abeer E M El-Refaiy, Ahmed M Abd-Eldayem
The potential protective role of the standardized leaf extract of ginkgo biloba (EGb761) on hypertension with hypercholesterolemia-induced renal injury was investigated in rats. Hypertension was induced by L-N(G)-nitroarginine methyl ester (L-NAME) and hypercholesterolemia was induced by feeding rats with a diet containing 1% cholesterol. In these animals repeated treatment with EGb761 produced a progressive reduction in the systolic, diastolic and mean arterial blood pressure (BP). EGb761 increased the progressive reduction in the systolic, diastolic and mean arterial BP induced by repeated administration of losartan with simvastatin...
September 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28915351/relaxation-dynamics-vs-crystallization-kinetics-in-the-amorphous-state-the-case-of-stiripentol
#19
Guadalupe N Ruiz, Michela Romanini, Maria Del Barrio, Josep Ll Tamarit, Luis C Pardo, Roberto Macovez
With the aim of finding a correlation between the crystallization kinetics and the molecular dynamics of a substance that would allow to predict its crystallization time as a function of temperature for a given α relaxation time, we have studied Stiripentol, an anticonvulsant drug. Stiripentol has been characterized in its supercooled liquid, and amorphous (glass) and crystalline states by the concurrent use of Broadband Dielectric Spectroscopy (BDS), differential scanning calorimetry, x-ray diffraction and optical microscopy...
September 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28915248/invasion-strategy-and-abiotic-activity-triggers-for-non-native-gobiids-of-the-river-rhine
#20
Jan Baer, Frank Hartmann, Alexander Brinker
The 24 hour activity patterns of three non-native gobiids (round goby Neogobius melanostomus, Western tubenose goby Proterorhinus semilunaris and bighead goby Ponticola kessleri) were assessed over 46 consecutive months between 2011 and 2014 from their occurrence in the cooling water intake of a nuclear power plant on the River Rhine, Germany. In total, 117717 gobiids were identified and classified. The occurrence of all three species varied strongly between sampling years, and species-specific activity triggers were identified...
2017: PloS One
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