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https://www.readbyqxmd.com/read/27936440/stride-variability-measures-derived-from-wrist-and-hip-worn-accelerometers
#1
Jacek K Urbanek, Jaroslaw Harezlak, Nancy W Glynn, Tamara Harris, Ciprian Crainiceanu, Vadim Zipunnikov
Many epidemiological and clinical studies use accelerometry to objectively measure physical activity using the activity counts, vector magnitude, or number of steps. These measures use just a fraction of the information in the raw accelerometry data as they are typically summarized at the minute level. To address this problem, we define and estimate two measures of temporal stride-to-stride gait variability based on raw accelerometry data: Amplitude Deviation (AD) and Phase Deviation (PD). We explore the sensitivity of our approach to on-body placement of the accelerometer by comparing hip, left and right wrist placements...
November 30, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27936414/-am-i-too-emotional-for-this-job-an-exploration-of-student-midwives-experiences-of-coping-with-traumatic-events-in-the-labour-ward
#2
Liz Coldridge, Sarah Davies
BACKGROUND: midwifery is emotionally challenging work, and learning to be a midwife brings its own particular challenges. For the student midwife, clinical placement in a hospital labour ward is especially demanding. In the context of organisational tensions and pressures the experience of supporting women through the unpredictable intensity of the labour process can be a significant source of stress for student midwives. Although increasing attention is now being paid to midwives' traumatic experiences and wellbeing few researchers have examined the traumatic experiences of student midwives...
November 28, 2016: Midwifery
https://www.readbyqxmd.com/read/27935891/-rate-of-in-hospital-cardiovascular-complications-in-patients-with-postoperative-renal-dysfunction-after-surgical-myocardial-revascularization
#3
L V Kremneva, O V Abaturova, S V Shalaev
The study was aimed at revealing the factors associated with renal dysfunction having developed after coronary artery bypass grafting (CABG) and assessing the in-hospital cardiovascular complications rate amongst patients with postoperative renal dysfunction. The study included a total of 99 patients presenting with stable angina pectoris and having indications for CABG. The mean age of the patients amounted to 57±7 years, with the average duration of coronary artery disease (CAD) of 6±5.7 years. A multi-vessel lesion of coronary arteries was revealed in 69...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27935771/preparing-anesthetists-to-manage-cannot-intubate-cannot-ventilate-situations
#4
Kenneth A Wofford
Cannot intubate/cannot ventilate (CICV) situations during anesthesia are rare, potentially catastrophic to the patient, and difficult to predict. Widely adopted practice guidelines advocate an algorithmic approach to CICV situations in which the anesthetist: (a) recognizes the CICV situation, (b) calls for help, (c) steadily progresses through a variety of methods to ventilate the patient and secure the airway, (d) restores ventilation via an infraglottic airway if the patient cannot be safely awakened prior to becoming moribund...
January 2017: Annual Review of Nursing Research
https://www.readbyqxmd.com/read/27935769/fluoroscopically-guided-epidural-injections-of-the-cervical-and-lumbar-spine
#5
Euddeum Shim, Joon Woo Lee, Eugene Lee, Joong Mo Ahn, Yusuhn Kang, Heung Sik Kang
Advances in imaging and the development of injection techniques have enabled spinal intervention to become an important tool in managing chronic spinal pain. Epidural steroid injection (ESI) is one of the most widely used spinal interventions; it directly delivers drugs into the epidural space to relieve pain originating from degenerative spine disorders-central canal stenoses and neural foraminal stenoses-or disk herniations. Knowledge of the normal anatomy of the epidural space is essential to perform an effective and safe ESI and to recognize possible complications...
December 9, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27935482/dural-sinus-stenting-for-idiopathic-intracranial-hypertension-factors-associated-with-hemodynamic-failure-and-management-with-extended-stenting
#6
David A Kumpe, Joshua Seinfeld, Xianchen Huang, Quelin Mei, David E Case, Christopher D Roark, Prem S Subramanian, Kimberly E Lind, Victoria S Pelak, Jeffrey L Bennett
BACKGROUND: Some patients undergoing dural sinus stenting for idiopathic intracranial hypertension (IIH) develop clinical and hemodynamic failure (recurrence of the pressure gradient) owing to stent-adjacent stenosis. OBJECTIVE: To characterize factors associated with hemodynamic failure, and to describe outcomes of patients after repeat stenting. MATERIALS AND METHODS: We reviewed the initial and follow-up clinical, venographic, and hemodynamic data in 39 patients with IIH treated over 17 years with stenting...
November 8, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27935457/impact-of-a-hypnotically-based-intervention-on-pain-and-fear-in-women-undergoing-labor
#7
Véronique Waisblat, Bryan Langholz, Franck J Bernard, Monique Arnould, Aurélien Benassi, François Ginsbourger, Nicolas Guillou, Karine Hamelin, Philippe Houssel, Pierre Hugot, Sylvie Martel-Jacob, Moustapha Moufouki, Hervé Musellec, Said Nid Mansour, Daniel Ogagna, Xavier Paqueron, Sihem Zerguine, Patrice Cavagna, Sébastien Bloc, Mark P Jensen, Gilles Dhonneur
The purpose of this study was to evaluate the effects of a hypnotically-based intervention for pain and fear in women undergoing labor who are about to receive an epidural catheter. A group of 155 women received interventions that included either (a) patient rocking, gentle touching, and hypnotic communication or (b) patient rocking, gentle touching, and standard communication. The authors found that the hypnotic communication intervention was more effective than the standard communication intervention for reducing both pain intensity and fear...
January 2017: International Journal of Clinical and Experimental Hypnosis
https://www.readbyqxmd.com/read/27935447/lateral-mass-screw-stimulation-thresholds-in-posterior-cervical-instrumentation-surgery-a-predictor-of-medial-deviation
#8
Bayard Wilson, Erik Curtis, Brian Hirshman, Ahmet Oygar, Karen Chen, Brandon C Gabel, Florin Vaida, David W Allison, Joseph D Ciacci
OBJECTIVE Normative data exists for stimulus-evoked pedicle screw electromyography (EMG) current thresholds in the lumbar spine, and is routinely referenced during spine surgeries to detect a screw breach, prevent injury of neural elements, and ensure the most biomechanically sound instrumentation construct. To date, similar normative data for cervical lateral mass screws is limited, thus the utility of lateral mass screw testing remains unclear. To address this disparity, in this study the authors describe cumulative lateral mass screw stimulation threshold data in patients undergoing posterior cervical instrumentation with lateral mass screws...
December 9, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27935437/improving-health-care-student-attitudes-toward-older-adults-through-educational-interventions-a-systematic-review
#9
Linda Ross, Paul Jennings, Brett Williams
Educational institutions should aim to positively influence the attitudes of future health care practitioners toward older patients in order to ensure the provision of quality patient care. This systematic review of the literature aims to determine the effectiveness of educational interventions designed to improve healthcare student behaviours and/or attitudes towards older people. The 29 studies included in this review utilised a variety of interventions, methods and measurement tools. The most common type of educational intervention incorporated interaction with real patients...
December 9, 2016: Gerontology & Geriatrics Education
https://www.readbyqxmd.com/read/27934961/minimum-electric-field-exposure-for-seizure-induction-with-electroconvulsive-therapy-and-magnetic-seizure-therapy
#10
Won Hee Lee, Sarah H Lisanby, Andrew F Laine, Angel V Peterchev
Lowering and individualizing the current amplitude in electroconvulsive therapy (ECT) has been proposed as a means to produce stimulation closer to the neural activation threshold and more focal seizure induction, which could potentially reduce cognitive side effects. However, the effect of current amplitude on the electric field (E-field) in the brain has not been previously linked to the current amplitude threshold for seizure induction. We coupled MRI-based E-field models with amplitude titrations of motor threshold (MT) and seizure threshold (ST) in four nonhuman primates (NHPs) to determine the strength, distribution, and focality of stimulation in the brain for four ECT electrode configurations (bilateral, bifrontal, right-unilateral, and frontomedial) and magnetic seizure therapy (MST) with cap coil on vertex...
December 9, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27934117/influx-and-production-rates-in-peak-mode-isotachophoresis
#11
Charbel Eid, Juan G Santiago
We present an analytical model useful in the design of peak-mode isotachophoresis (ITP) experiments. The model quantifies sample influx and production rates, the latter in applications where ITP is used to accelerate chemical reactions. We include analysis of the effect of initial sample placement location. We derive and identify key nondimensional parameters for the general case of weak electrolyte buffer ions in terms of sample placement (injection mode), initial concentrations, fully ionized mobilities, and reaction kinetic constants...
December 6, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27934007/flexibility-matters-cooperative-active-sites-in-covalent-organic-framework-and-threaded-ionic-polymer
#12
Qi Sun, Briana Aguila, Jason Perman, Nicholas Nguyen, Shengqian Ma
The combination of two or more reactive centers working in concert on a substrate to facilitate the reaction is now considered state of the art in catalysis, yet there still remains a tremendous challenge. Few heterogeneous systems of this sort have been exploited, as the active sites spatially separated within the rigid framework are usually difficult to cooperate. It is now shown that this roadblock can be surpassed. The underlying principle of the strategy presented here is the integration of catalytic components with excellent flexibility and porous heterogeneous catalysts, as demonstrated by the placement of linear ionic polymers in close proximity to surface Lewis acid active sites anchored on the walls of a covalent organic framework (COF)...
December 7, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27933572/relation-between-the-stability-of-dental-implants-and-two-biological-markers-during-the-healing-period-a-prospective-clinical-study
#13
Choknapa Tirachaimongkol, Peraphan Pothacharoen, Peter A Reichart, Pathawee Khongkhunthian
OBJECTIVES: The purposes of this study were to examine the correlation between the stability of dental implants and bone formation markers during the healing period and to monitor the stability of dental implants using the resonance frequency analysis (RFA) method. The null hypothesis of the study is no correlation between the stability of dental implant and bone formation markers. METHODS: The study is a prospective clinical study during the 3-month healing period of implant...
December 2016: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27933475/how-safe-is-minimally-invasive-pedicle-screw-placement-for-treatment-of-thoracolumbar-spine-fractures
#14
Timo Michael Heintel, Stefan Dannigkeit, Annabel Fenwick, Martin Cornelius Jordan, Hendrik Jansen, Fabian Gilbert, Rainer Meffert
STUDY DESIGN: Prospective analysis of patients who underwent minimally invasive posterior instrumentation. OBJECTIVE: The purpose of this study was to evaluate the safety of minimally invasive pedicle screw placement in patients with unstable thoracic and lumbar spine fractures using the conventional fluoroscopy technique. Although wound infection, haematoma, and new neurological deficit due to screw malplacement remain a common source of morbidity, estimates of their rates of occurrence remain relatively limited...
December 8, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27933378/a-train-track-technique-in-anatomic-reconstruction-of-svc-bifurcation-complicated-by-cardiac-tamponade-an-introspection
#15
Karunakaravel Karuppasamy, Mohammed Al-Natour, Ram Kishore Gurajala
This report describes a stenting technique used to anatomically reconstruct superior vena cava (SVC) bifurcation in a patient with benign SVC syndrome. After recanalizing the SVC bifurcation, we exchanged two 0.035-in. wires for two 0.018-in. wires, deployed the SVC stent over these two wires ("train-track" technique), and stented each innominate vein over one wire. However, our decisions to recanalize both innominate veins, use the "buddy-wire" technique for SVC dilation, and dilate the SVC to 16 mm before stent deployment likely contributed to SVC tear, which was managed by resuscitation, SVC stent placement, and pericardial drainage...
December 8, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27933352/intracochlear-drug-delivery-in%C3%A2-combination-with-cochlear-implants-current-aspects
#16
S K Plontke, G Götze, T Rahne, A Liebau
Local drug application to the inner ear offers a number of advantages over systemic delivery. Local drug therapy currently encompasses extracochlear administration (i. e., through intratympanic injection), intracochlear administration (particularly for gene and stem cell therapy), as well as various combinations with auditory neurosensory prostheses, either evaluated in preclinical or clinical studies, or off-label. To improve rehabilitation with cochlear implants (CI), one focus is the development of drug-releasing electrode carriers, e...
December 8, 2016: HNO
https://www.readbyqxmd.com/read/27933222/endophthalmitis-prophylaxis-using-a-single-drop-of-thermoresponsive-controlled-release-microspheres-loaded-with-moxifloxacin-in-a-rabbit-model
#17
Alex Mammen, Eric G Romanowski, Morgan V Fedorchak, Deepinder K Dhaliwal, R M Shanks, Regis P Kowalski
PURPOSE: Postsurgical endophthalmitis is a sight-threatening problem. We introduce a simple approach by using a single application of thermoresponsive controlled-release microspheres, loaded with moxifloxacin, to prevent bacterial endophthalmitis in a rabbit endophthalmitis prevention model. METHODS: We separated 24 rabbits into 3 treatment groups in which topical drop treatment was placed onto the conjunctival cul-de-sac: (1) a single drop of controlled-release microspheres containing moxifloxacin, (2) a single drop of controlled-release microspheres without moxifloxacin, and (3) multiple topical treatment with moxifloxacin alone every 15 minutes for 1 hour...
December 2016: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/27932919/metabarcoding-of-marine-nematodes-evaluation-of-reference-datasets-used-in-tree-based-taxonomy-assignment-approach
#18
Oleksandr Holovachov
BACKGROUND: Metabarcoding is becoming a common tool used to assess and compare diversity of organisms in environmental samples. Identification of OTUs is one of the critical steps in the process and several taxonomy assignment methods were proposed to accomplish this task. This publication evaluates the quality of reference datasets, alongside with several alignment and phylogeny inference methods used in one of the taxonomy assignment methods, called tree-based approach. This approach assigns anonymous OTUs to taxonomic categories based on relative placements of OTUs and reference sequences on the cladogram and support that these placements receive...
2016: Biodiversity Data Journal
https://www.readbyqxmd.com/read/27932858/one-stage-bone-strip-reconstruction-technique-with-balloon-sinus-dilatation-surgery-for-chronic-maxillary-atelectasis
#19
Tomoyuki Kashima, Robert A Goldberg, Jocelyne C Kohn, Daniel B Rootman
PURPOSE: Chronic maxillary atelectasis is characterized by unilateral spontaneous enophthalmos and hypoglobus due to increased orbital volume secondary to maxillary sinus inward deformation. Reformation of the sinus architecture and reconstruction of the orbit are key to a successful outcome. Here, we introduce a one-staged surgery that addresses both these goals. PATIENTS AND METHODS: We retrospectively reviewed 11 patients treated with one-stage orbital and sinus surgery...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27932832/should-implants-be-considered-for-patients-with-periodontal-disease
#20
E King, R Patel, A Patel, L Addy
Dental implants are seen as a good option for replacing missing teeth. The success and survival rates for implants are very high. Concerns are developing about the problem of peri-implantitis. The reports of its prevalence vary but it is noted that the presence of periodontal disease is a risk factor. The issue of peri-implantitis was raised in the House of Lords in 2014. Complaints relating to implants is on the rise with the General Dental Council. Placement of implants in patients with periodontal disease is not a treatment that should be done without a full periodontal assessment and stabilisation of periodontal disease first...
December 9, 2016: British Dental Journal
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