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https://www.readbyqxmd.com/read/28637340/an-analysis-of-the-use-of-multichannel-microelectrode-recording-during-deep-brain-stimulation-surgeries-at-a-single-center
#1
Steven Falowski, James Dierkes
BACKGROUND: Microelectrode recording (MER) can be used to map out the target nucleus and identify ideal lead placement. OBJECTIVE: To assess the use of multichannel MER to increase the efficiency of lead placement without compromising patient safety. METHODS: Analysis of a single center's technique for utilizing multichannel MER with 3 consistent anterior-to-posterior simultaneous passes that include an evaluation of the location of final lead placement, patient diagnosis, target nuclei, and additional work involved for refinement of targeting...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28631164/studies-on-vertical-transmission-of-trichinella-spiralis-in-experimentally-infected-guinea-pigs-cavia-porcellus
#2
Eliana Riva, Cesar Fiel, Gisele Bernat, Sebastián Muchiut, Pedro Steffan
An experimental study to enhance knowledge on the capability of Trichenella spiralis to pass from guinea pigs to progeny at different periods of pregnancy or lactation was performed. For this purpose, 18 female adult guinea pigs were inoculated with 100 or 1000 T. spiralis muscle larvae (ML) during early, late gestation and during lactation period. The presence of T. spiralis (ML) in mothers and newborns was studied through enzymatic digestion from muscle samples. ML were observed in 9 of 42 newborn guinea pigs and levels of infection were significantly higher when infections of mothers were done during late gestation (p = 0...
June 19, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28618193/introduction-of-color-flow-injection-test-to-confirm-intravascular-location-of-peripherally-placed-intravenous-catheters
#3
Nischal K Gautam, Kayla R Bober, Chunyan Cai
BACKGROUND: The incidence of infiltration and extravasation when using peripheral intravenous catheters is high in pediatric patients. Due to the lack of a gold standard test to confirm intravascular location of a peripherally placed intravenous catheter, we introduce a novel method, the color-flow injection test to assess the intravascular location of these catheters. For the color-flow injection test, 1 mL of normal saline was injected within 2 seconds in the distal intravenous catheter and changes in color-flow via ultrasonography were observed at the proximal draining veins...
June 15, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28618052/comparison-between-swinging-and-playing-of-white-noise-among-colicky-babies-a-paired-randomized-controlled-trial
#4
Emel Sezici, Deniz Yigit
AIMS AND OBJECTIVE: This study aimed to compare the effects of swinging and playing of white noise on the crying and sleeping durations of colicky babies. BACKGROUND: Infantile colic (IC) is one of the most common reasons for doctor visits among babies younger than 3 months. One out of five babies older than 3 months also experiences IC. IC, unlike gastrointestinal problems, is regarded as an individual differentiation and maturation of the central nervous system...
June 15, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28615814/an-anatomical-study-for-localisation-of-zygomatic-branch-of-facial-nerve-and-masseteric-nerve-an-aid-to-nerve-coaptation-for-facial-reanimation-surgery-a-cadaver-based-study-in-eastern-india
#5
Ratnadeep Poddar, Alipta Bhattacharya, Iman Sinha, Asis Kumar Ghosal
CONTEXT: In cases of chronic facial palsy, where direct neurotisation is possible, ipsilateral masseteric nerve is a very suitable motor donor. We have tried to specifically locate the masseteric nerve for this purpose. AIMS: Describing an approach of localisation and exposure of both the zygomatic branch of Facial nerve and the nerve to masseter, with respect to a soft tissue reference point over face. SETTINGS AND DESIGN: Observational cross sectional study, conducted on 12 fresh cadavers...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28606277/-study-and-analysis-of-national-current-status-and-problems-of-anticoagulant-proteins-assay
#6
X L Liu, W B Zhou, C B Li, H R Hu, M T Peng
Objective: To investigate current status and problems of anticoagulant proteins assay in domestic laboratories so as to provide suggestions for implementing the standardization and quality improvement. Methods: Two hundred and seventy-four laboratories those had developed or prepared to do anticoagulant proteins assay were selected from one thousand and five hundred participants in the national coagulation screening External Quality Assessment(EQA) program by an internet survey and then a questionnaire and quality control materials were sent to them to carry out a further survey...
June 13, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28605052/effects-of-pedunculopontine-nucleus-stimulation-on-human-bladder-function
#7
Holly A Roy, Debbie Pond, Christopher Roy, Beth Forrow, Thomas Foltynie, Ludvic Zrinzo, Harith Akram, Tipu Z Aziz, James J FitzGerald, Alexander L Green
AIMS: The pedunculopontine nucleus (PPN) is a deep brain stimulation target for Parkinson's disease (PD). Unilateral PPN stimulation has been described in a previous case report to provoke urinary frequency, urgency and detrusor overactivity, due to probable activation of the pontine micturition center. Our aim was to evaluate the effect of bilateral PPN DBS on urodynamic parameters and to investigate the likely mechanisms using probabilistic tractography. METHODS: Six male PD subjects with bilateral PPN deep brain stimulators were recruited...
June 12, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28604610/an-nfc-on-two-coil-wpt-link-for-implantable-biomedical-sensors-under-ultra-weak-coupling
#8
Chen Gong, Dake Liu, Zhidong Miao, Wei Wang, Min Li
The inductive link is widely used in implantable biomedical sensor systems to achieve near-field communication (NFC) and wireless power transfer (WPT). However, it is tough to achieve reliable NFC on an inductive WPT link when the coupling coefficient is ultra-low (0.01 typically), since the NFC signal (especially for the uplink from the in-body part to the out-body part) could be too weak to be detected. Traditional load shift keying (LSK) requires strong coupling to pass the load modulation information to the power source...
June 11, 2017: Sensors
https://www.readbyqxmd.com/read/28601031/delayed-diagnosis-of-esophageal-foreign-body-a-case-report
#9
Salem Yahyaoui, Imen Jahaouat, Ines Brini, Azza Sammoud
INTRODUCTION: Foreign body (FB) ingestion, a common and serious problem in children, can present with a wide variety of symptoms. This paper describes and discusses the case of an esophageal foreign body (EFB), in which the patient presented with primarily respiratory clinical signs causing delayed diagnosis. PRESENTATION OF CASE: A six month old boy presented with three months history of harsh cough, stridor and pulmonary congestion. He was repeatedly treated with steroids and antibiotics...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28598716/evaluation-and-application-of-a-passive-air-sampler-for-polycylic-aromatic-hydrocarbons-pahs
#10
Fatma Esen, Yildiz M Evci, Yucel Tasdemir
Sampling of 15 PAHs by the use of both passive air sampler developed (D-PAS) in our research group and PAS (C-PAS) having widespread use in the literature was conducted to compare the performances of the samplers. Sampling was carried out for 1-year period (February 2013-February 2014), in different sampling periods by employing D-PAS and C-PAS. D-PAS and C-PAS were run in parallel for 10, 20, 30, 40 and 60 days. Sampling rates were calculated for both PASs by the use of concentration values obtained from a high-volume air sampler (HVAS)...
June 9, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28595410/communication-almost-error-free-resolution-of-the-identity-correlation-methods-by-null-space-removal-of-the-particle-hole-interactions
#11
Henry F Schurkus, Arne Luenser, Christian Ochsenfeld
We present a method to improve upon the resolution-of-the-identity (RI) for correlation methods. While RI is known to allow for drastic speedups, it relies on a cancellation of errors. Our method eliminates the errors introduced by RI which are known to be problematic for absolute energies. In this way, independence of the error compensation assumption for relative energies is also achieved. The proposed method is based on the idea of starting with an oversized RI basis and projecting out all of its unphysical parts...
June 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28594798/-anatomical-aspects-of-formation-of-corona-phlebectatica
#12
R E Kalinin, I A Suchkov, G A Puchkova, V P Zhelezinskiĭ, I N Shanaev
The data concerning the anatomy of perforant veins of the foot can by no means be referred to as insufficiently known. At the same time, these descriptions are encountered rather rarely in the educational-and-methodical literature. To a certain degree, this may be explained by low pathogenetic significance of perforant veins of the foot; however, these data are required for the surgeon in carrying out both standard phlebectomy and sclerotherapy of subcutaneous varicose veins, especially if the zone of surgical intervention is situated immediately on the foot...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28589250/histopathological-and-bacteriological-analysis-of-thrombus-material-extracted-during-mechanical-thrombectomy-in-acute-stroke-patients
#13
Francisco Hernández-Fernández, Laura Rojas-Bartolomé, Jorge García-García, Óscar Ayo-Martín, Juan David Molina-Nuevo, Rosa Angélica Barbella-Aponte, Gemma Serrano-Heras, Enrique Juliá-Molla, María José Pedrosa-Jiménez, Tomás Segura
PURPOSE: Management of stroke secondary to septic emboli (SE) remains challenging, due to both the lack of specific recommendations and the gravity of the underlying pathology.The aim of this study is to describe the presence of SE in a series of mechanical thrombectomies (MT), analyzing technical complexity and outcomes with respect to the patients by means of histological analysis and microbiological study of the clot. METHODS: All the retrieved clots were studied under an established protocol, including histopathological and bacteriological study with hematoxylin-eosin, Gram and Gomori trichrome staining...
June 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28587194/cross-kingdom-regulation-of-putative-mirnas-derived-from-happy-tree-in-cancer-pathway-a-systems-biology-approach
#14
Dinesh Kumar, Swapnil Kumar, Garima Ayachit, Shivarudrappa B Bhairappanavar, Afzal Ansari, Priyanka Sharma, Subhash Soni, Jayashankar Das
MicroRNAs (miRNAs) are well-known key regulators of gene expression primarily at the post-transcriptional level. Plant-derived miRNAs may pass through the gastrointestinal tract, entering into the body fluid and regulate the expression of endogenous mRNAs. Camptotheca acuminata, a highly important medicinal plant known for its anti-cancer potential was selected to investigate cross-kingdom regulatory mechanism and involvement of miRNAs derived from this plant in cancer-associated pathways through in silico systems biology approach...
June 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28584339/-a-new-method-for-determination-of-toluene-2-4-diamine-and-toluene-2-6-diamine-in-workplace-air
#15
Joanna Kowalska, Anna Jeżewska
BACKGROUND: Toluenediamines are harmful substances. Toluene-2,4-diamine has been assigned to Carcinogen 1B hazard class, pursuant to Regulation (European Community - EC) No. 1272/2008 of the European Parliament and of the Council, and toluene- 2,6-diamine to Mutagen 2 hazard class. The main routes of exposure to toluene-2,4-diamine and toluene-2,6-diamine are via the respiratory tract and the skin. Toluene-2,4-diamine and toluene-2,6-diamine occur in the work environment in Poland. The aim of this study was to develop and validate a method for the determination of toluene-2,4-diamine and toluene-2,6-diamine that allows the simultaneous determination of their concentrations in the workplace air by personal sampling...
May 26, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28581040/coaxial-flow-gating-interface-for-capillary-electrophoresis
#16
František Opekar, Petr Tůma
A coaxial flow-gating interface is described in which the separation capillary passes through the sampling capillary. Continuous flow of the sample solution flowing out of the sampling capillary is directed away from the injection end of the separation capillary by counter-current flow of the gating solution. During the injection, the flow of the gating solution is interrupted, so that a plug of solution is formed at the inlet into the separation capillary, from which the sample is hydrodynamically injected...
June 5, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28579309/genetic-variation-in-the-first-pass-metabolism-of-ethinylestradiol-sex-hormone-binding-globulin-levels-and-venous-thrombosis-risk
#17
Bernardine H Stegeman, Hans L Vos, Frans M Helmerhorst, Frits R Rosendaal, Pieter H Reitsma, Astrid van Hylckama Vlieg
BACKGROUND: Use of ethinylestradiol, one of the active ingredients in combined oral contraceptives, affects the incidence of venous thrombosis. To explain why some women develop thrombosis when using oral contraceptives and others do not, we hypothesized a role for the first-pass metabolism of ethinylestradiol in the liver. We set out to determine the association between genetic variation in the first-pass metabolism of ethinylestradiol, venous thrombosis risk and the effect on Sex-hormone-binding-globulin (SHBG) levels...
May 31, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28569997/impact-of-spot-charge-inaccuracies-in-impt-treatments
#18
Aafke C Kraan, Nicolas Depauw, Ben Clasie, Marina Giunta, Tom Madden, Hanne M Kooy
BACKGROUND: Spot charge is one parameter of pencil-beam scanning dose delivery system whose accuracy is typically high but whose required value has not been investigated. In this work we quantify the dose impact of spot charge inaccuracies on the dose distribution in patients. Knowing the effect of charge errors is relevant for conventional proton machines, as well as for new generation proton machines, where ensuring accurate charge may be challenging. METHODS: Through perturbation of spot charge in treatment plans for 7 patients and a phantom, we evaluated the dose impact of absolute (up to 5 X 10(6) protons) and relative (up to 30%) charge errors...
June 1, 2017: Medical Physics
https://www.readbyqxmd.com/read/28569299/tiny-changes-in-local-order-identify-the-cluster-formation-threshold-in-model-fluids-with-competing-interactions
#19
Jean-Marc Bomont, Dino Costa, Jean-Louis Bretonnet
We use Monte Carlo simulations to carry out a thorough analysis of structural correlations arising in a relatively dense fluid of rigid spherical particles with prototype competing interactions (short-range attractive and long-range repulsive two-Yukawa model). As the attraction strength increases, we show that the local density of the fluid displays a tiny reversal of trend within specific ranges of interparticle distances, whereupon it decreases first and increases afterwards, passing through a local minimum...
June 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28559038/nonphysician-out-of-hospital-rapid-sequence-intubation-success-and-adverse-events-a%C3%A2-systematic-review-and-meta-analysis
#20
REVIEW
Pieter F Fouche, Christopher Stein, Paul Simpson, Jestin N Carlson, Suhail A Doi
STUDY OBJECTIVE: Rapid sequence intubation performed by nonphysicians such as paramedics or nurses has become increasingly common in many countries; however, concerns have been stated in regard to the safe use and appropriateness of rapid sequence intubation when performed by these health care providers. The aim of our study is to compare rapid sequence intubation success and adverse events between nonphysician and physician in the out-of-hospital setting. METHODS: A systematic literature search of key databases including MEDLINE, EMBASE, and the Cochrane Library was conducted...
May 27, 2017: Annals of Emergency Medicine
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