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https://www.readbyqxmd.com/read/28817694/a-new-holistic-3d-non-invasive-analysis-of-cellular-distribution-and-motility-on-fibroin-alginate-microcarriers-using-light-sheet-fluorescent-microscopy
#1
Serena Duchi, Filippo Piccinini, Michela Pierini, Alessandro Bevilacqua, Maria Luisa Torre, Enrico Lucarelli, Spartaco Santi
Cell interaction with biomaterials is one of the keystones to developing medical devices for tissue engineering applications. Biomaterials are the scaffolds that give three-dimensional support to the cells, and are vectors that deliver the cells to the injured tissue requiring repair. Features of biomaterials can influence the behaviour of the cells and consequently the efficacy of the tissue-engineered product. The adhesion, distribution and motility of the seeded cells onto the scaffold represent key aspects, and must be evaluated in vitro during the product development, especially when the efficacy of a specific tissue-engineered product depends on viable and functional cell loading...
2017: PloS One
https://www.readbyqxmd.com/read/28817499/nurse-practitioner-lead-pediatric-baclofen-pump-program-impact-on-safety-and-quality-of-care
#2
Kristin Buxton, Ann Morgan, Jayne Rogers
Children with cerebral palsy experience spasticity that can be debilitating and cause significant pain and contractures. Intrathecal baclofen (ITB) therapy can help relieve this spasticity and improve the quality of life for these patients, but it comes with risk. Withdrawal from the medication in case of abrupt discontinuation of delivery can be life-threatening. Regular maintenance of the system is mandatory. Having a program in place to manage the device and support patients helps to ensure their safety...
August 16, 2017: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/28817381/advanced-radiation-dosimetry-phantom-ardos-a-versatile-breathing-phantom-for-4d-radiation-therapy-and-medical-imaging
#3
Natalia Kostiukhina, Dietmar Georg, Sofia Rollet, Peter Kuess, Andrej Sipaj, Piotr Andrzejewski, Hugo Furtado, Ivo Rausch, Wolfgang Lechner, Elisabeth Steiner, Hunor Kertesz, Barbara Knaeusl
A novel breathing phantom was designed for being used in conventional and ion-beam radiotherapy as well as for medical imaging. Accurate dose delivery and patient safety are aimed to be verified for four-dimensional (4D) treatment techniques compensating for breathing-induced tumor motion. The phantom includes anthropomorphic components representing an average human thorax. It consists of real tissue equivalent materials to fulfill the requirements for dosimetric experiments and imaging purposes. The different parts of the torso (lungs, chest wall, and ribs) and the tumor can move independently...
August 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28817165/contraception-after-surgical-and-medical-abortion-a-review
#4
Andrea Hsu Roe, Deborah Bartz
Importance: To prevent subsequent unintended pregnancy, contraception should be initiated soon after surgical and medical abortion. Evidence regarding the safety of postabortion contraception, especially for longacting reversible methods, has accumulated in recent years. Objective: This review seeks to provide up-to-date recommendations about the provision and timing of contraception after surgical and medical abortion. Evidence Acquisition: Recommendations are based on the US Medical Eligibility Criteria (MEC) or on the authors' review of the current literature for topics that the MEC does not address...
August 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28816307/quantum-cascade-lasers-qcls-in-biomedical-spectroscopy
#5
REVIEW
Andreas Schwaighofer, Markus Brandstetter, Bernhard Lendl
Quantum cascade lasers (QCL) are the first room temperature semiconductor laser source for the mid-IR spectral region, triggering substantial development for the advancement of mid-IR spectroscopy. Mid-IR spectroscopy in general provides rapid, label-free and objective analysis, particularly important in the field of biomedical analysis. Due to their unique properties, QCLs offer new possibilities for development of analytical methods to enable quantification of clinically relevant concentration levels and to support medical diagnostics...
August 17, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28816077/in-vitro-evaluation-of-the-occlusive-properties-of-the-artventive-eos-occlusion-device-for-transrenal-ureteral-occlusion
#6
Daniel Kuetting, Carsten Meyer, Hans Heinz Schild, Claus Christian Pieper
PURPOSE: Current techniques for percutaneous ureteral occlusion are either technically difficult or not satisfactory due to frequent ureteral recanalization. The purpose of this in vitro study was to evaluate the occlusive properties of an "off the shelf" solution (EOS; ArtVentive Medical Group, Inc, Carlsbad, CA/USA) for transrenal ureteral occlusion. MATERIALS AND METHODS: 8 and 11 mm ePTFE covered ArtVentive EOS devices were used in 10 porcine models. Experiments were performed in explanted porcine ureters to simulate physiologic conditions...
August 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28815151/eye-tracking-for-clinical-decision-support-a-method-to-capture-automatically-what-physicians-are-viewing-in-the-emr
#7
Andrew J King, Harry Hochheiser, Shyam Visweswaran, Gilles Clermont, Gregory F Cooper
Eye-tracking is a valuable research tool that is used in laboratory and limited field environments. We take steps toward developing methods that enable widespread adoption of eye-tracking and its real-time application in clinical decision support. Eye-tracking will enhance awareness and enable intelligent views, more precise alerts, and other forms of decision support in the Electronic Medical Record (EMR). We evaluated a low-cost eye-tracking device and found the device's accuracy to be non-inferior to a more expensive device...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814898/reducing-rectal-injury-in-men-receiving-prostate-cancer-radiation-therapy-current-perspectives
#8
REVIEW
Nicholas A Serrano, Noah S Kalman, Mitchell S Anscher
Dose escalation is now the standard of care for the treatment of prostate cancer with radiation therapy. However, the rectum tends to be the dose-limiting structure when treating prostate cancer, given its close proximity. Early and late toxicities can occur when the rectum receives large doses of radiation therapy. New technologies allow for prevention of these toxicities. In this review, we examine the evidence that supports various dose constraints employed to prevent these rectal injuries from occurring...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28813814/toward-quantitative-characterization-of-essential-tremor-for-future-tremor-suppression
#9
Steven K Charles, Daniel W Geiger, Andrew D Davidson, Adam C Pigg, C Paul Curtis, Brendon C Allen
Tremor is the most common movement deficit and manifests in a variety of disorders, including Essential Tremor, Parkinson's Disease, Dystonia, and Cerebellar Ataxia. Although medication and surgical interventions have significantly reduced patient suffering, they are only partially effective and can carry undesired side effects, leaving many patients without satisfactory treatment options. Wearable tremor-suppressing devices could provide an alternative to medication and surgery. Multiple research groups have developed orthotic prototypes to low-pass filter tremor, but these devices have not yet been optimized for in-vivo use...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28812166/part-ii-u-s-sub-saharan-africa-educational-partnerships-for-medical-device-design
#10
EDITORIAL
Brittany Ploss, Tania S Douglas, Matthew Glucksberg, Elsie Effah Kaufmann, Robert A Malkin, Janet McGrath, Theresa Mkandawire, Maria Oden, Akinniyi Osuntoki, Andrew Rollins, Kathleen Sienko, Robert T Ssekitoleko, William Reichert
No abstract text is available yet for this article.
August 15, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28811823/protective-barrier-properties-of-rhinosectan-%C3%A2-spray-containing-xyloglucan-on-an-organotypic-3d-airway-tissue-model-mucilair-results-of-an-in-vitro-study
#11
Barbara De Servi, Francesco Ranzini, Núria Piqué
BACKGROUND: To evaluate barrier protective properties of Rhinosectan(®) spray, a medical device containing xyloglucan, on nasal epithelial cells (MucilAir). METHODS: MucilAir-Nasal, a three-dimensional organotypic (with different cell types) airway tissue model, was treated with the medical device Rhinosectan(®) (30 µL) or with controls (Rhinocort-budesonide-or saline solution). The protective barrier effects of Rhinosectan(®) were evaluated by: TEER (trans-epithelial electrical resistance) (preservation of tight junctions), Lucifer Yellow assay (preservation of paracellular flux) and confocal immunofluorescence microscopy (localization of tight junction proteins)...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28811395/overview-and-reflections-of-a-new-experimental-community-pharmacy-internship-module-for-undergraduate-pharmacy-students-in-western-nepal
#12
Sangita Timsina, Bhuvan K C, Dristi Adhikari, Alian A Alrasheedy, Mohamed Izham Mohamed Ibrahim, Atisammodavardhana Kaundinnyayana
The community pharmacies in Nepal and other South Asian countries is in a mediocre state due to poor regulation and the pharmacies being run by people with short training on dispensing. This has led to inappropriate use of medicines. The problem due to poor regulation and mediocre state of community pharmacies in South Asia encompasses both academia and practice. In this paper, the two-week community pharmacy internship programme of the two pharmacy graduating students of Pokhara University (Nepalese public university) at Sankalpa Pharmacy, Pokhara, Nepal is illustrated...
August 16, 2017: Journal of Educational Evaluation for Health Professions
https://www.readbyqxmd.com/read/28810976/women-s-health-knowledge-and-skills-among-transitional-year-internship-trained-military-medical-officers-serving-as-independent-health-care-providers
#13
Ryan J Heitmann, Crystal B Hammons, Alison L Batig
BACKGROUND: Women comprise 14.5% of active duty service members. Delivery of women's health services is a critical component to personal, medical, and mission readiness. Our objective was to evaluate the knowledge, skills, and practices pertaining to basic elements of women's/reproductive health issues among transitional internship-trained general medical officers in the Army, Navy, and Air Force. MATERIALS AND METHODS: This is a cross-sectional survey study of transitional internship-trained graduates from 2012 to 2015 who transitioned to an operational assignment as an independent provider after internship graduation...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810022/characteristics-of-clinical-studies-used-for-us-food-and-drug-administration-approval-of-high-risk-medical-device-supplements
#14
Sarah Y Zheng, Sanket S Dhruva, Rita F Redberg
Importance: High-risk medical devices often undergo modifications, which are approved by the US Food and Drug Administration (FDA) through various kinds of premarket approval (PMA) supplements. There have been multiple high-profile recalls of devices approved as PMA supplements. Objective: To characterize the quality of the clinical studies and data (strength of evidence) used to support FDA approval of panel-track supplements (a type of PMA supplement pathway that is used for significant changes in a device or indication for use and always requires clinical data)...
August 15, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28809712/a-novel-intracranial-pressure-readout-circuit-for-passive-wireless-lc-sensor
#15
Fa Wang, Xuan Zhang, Mehdi Shokoueinejad, Bermans J Iskandar, Joshua E Medow, John G Webster
We present a wide frequency range, low cost, wireless intracranial pressure monitoring system, which includes an implantable passive sensor and an external reader. The passive sensor consists of two spiral coils and transduces the pressure change to a resonant frequency shift. The external portable reader reads out the sensor's resonant frequency over a wide frequency range (35 MHz-2.7 GHz). We propose a novel circuit topology, which tracks the system's impedance and phase change at a high frequency with low-cost components...
August 14, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28809677/application-of-the-4d-xcat-phantoms-in-biomedical-imaging-and-beyond
#16
W Paul Segars, B M W Tsui, Jing Cai, Fang-Fang Yin, George S K Fung, Ehsan Samei
The four dimensional (4D) eXtended CArdiac-Torso (XCAT) series of phantoms was developed to provide accurate computerized models of the human anatomy and physiology. The XCAT series encompasses a vast population of phantoms of varying ages from newborn to adult, each including parameterized models for the cardiac and respiratory motions. With great flexibility in the XCAT's design, any number of body sizes, different anatomies, cardiac or respiratory motions or patterns, patient positions and orientations, and spatial resolutions can be simulated...
August 10, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28809670/cardio-pulmonary-stethoscope-clinical-validation-with-heart-failure-and-hemodialysis-patients
#17
Magdy F Iskander, Todd B Seto, Ruthsenne Rg Perron, Eunjung Lim, Farhan Qazi
OBJECTIVE: The purpose of this study is to evaluate the accuracy of a noninvasive radiofrequency-based device, the Cardio-Pulmonary Stethoscope (CPS), to monitor heart and respiration rates and detect changes in lung water content in human experiments and clinical trials. METHODS: Three human populations (healthy subjects (n=4), heart failure (n=12) and hemodialysis (n=13) patients) were enrolled in this study. The study was conducted at the University of Hawaii and The Queen's Medical Center in Honolulu, HI...
August 14, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28808824/gasless-single-incision-laparoscopic-inguinal-hernia-repair-initial-experience
#18
M W V Ng, K C Ng
PURPOSE: Laparoscopic hernioplasty has been gaining its popularity in the past decade for its rapid recovery. Single-incision surgery, as its possible advancement, has also received more attention. Traditional laparoscopic surgery with carbon dioxide insufflation precluded patients with underlying cardiovascular or pulmonary disease from minimal invasive surgery. We report our early experience with gasless single-incision laparoscopic inguinal hernia repair via totally extraperitoneal (TEP) approach...
August 14, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28808803/a-prototype-educational-model-for-hepatobiliary-interventions-unveiling-the-role-of-graphic-designers-in-medical-3d-printing
#19
Ramin Javan, Merissa N Zeman
In the context of medical three-dimensional (3D) printing, in addition to 3D reconstruction from cross-sectional imaging, graphic design plays a role in developing and/or enhancing 3D-printed models. A custom prototype modular 3D model of the liver was graphically designed depicting segmental anatomy of the parenchyma containing color-coded hepatic vasculature and biliary tree. Subsequently, 3D printing was performed using transparent resin for the surface of the liver and polyamide material to develop hollow internal structures that allow for passage of catheters and wires...
August 14, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28808608/intrathecal-catheter-associated-inflammatory-mass-in-a-neurofibromatosis-type-1-patient-receiving-fentanyl-and-bupivacaine
#20
Derek G Southwell, Joseph A Osorio, Christopher S Liverman, Lauren M Friedman, Ramana K Naidu, Lawrence R Poree, Melanie M Henry, Line Jacques
BACKGROUND: Catheter-associated inflammatory masses (CIMs) are a rare but serious complication of intrathecal drug delivery devices. CIM formation is influenced by local medication concentration, which is determined in part by flow dynamics at the catheter tip. Underlying spinal pathologies, such as neoplasms, may alter flow at the catheter tip, thereby contributing to CIM formation. Moreover, they may also complicate the clinical and radiologic diagnosis of a CIM. CASE DESCRIPTION: A 36-year-old man with neurofibromatosis type 1 presented to our emergency department with complaints of increased back pain and leg weakness...
2017: Surgical Neurology International
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