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https://www.readbyqxmd.com/read/27926760/epidermal-nerve-fiber-quantification-in-patients-with-erythromelalgia
#1
William G Mantyh, P James B Dyck, Peter J Dyck, Janean K Engelstad, William J Litchy, Paola Sandroni, Mark D P Davis
Importance: Erythromelalgia is a clinical diagnosis based on intermittent warmth, erythema, and pain in the distal extremities. One problem facing physicians is how to objectively test for this disease. Given that other painful conditions of the distal extremities (ie, neuropathy related to human immunodeficiency virus, diabetes, or Fabry disease) can be evaluated with a skin biopsy to visualize pathologically decreased densities of the small nerve fibers that innervate the epidermis, one hypothesis is that erythromelalgia could similarly be associated with a loss of epidermal nerve fiber density (ENFD)...
December 7, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/27926652/hysteroscopic-sterilization-with-essure-summary-of-the-u-s-food-and-drug-administration-actions-and-policy-implications-for-postmarketing-surveillance
#2
Jessica R Walter, Comeron W Ghobadi, Emily Hayman, Shuai Xu
In September 2015, the U.S. Food and Drug Administration (FDA) convened a meeting of the Obstetrics and Gynecology Advisory Board Committee to address the sudden increase of patient-reported adverse events surrounding Essure, a Class III device offering a less invasive method for permanent female sterilization. After a review of the premarketing and postmarketing data and existing scientific literature, the FDA concluded there was insufficient evidence to remove the device from the market. However, the FDA did release a new guidance document requiring a black box warning for the device and ordered a new postmarketing study comparing Essure's safety and efficacy with laparoscopic tubal sterilization...
December 2, 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27925871/no-signal-intensity-increase-in-the-dentate-nucleus-on-unenhanced-t1-weighted-mr-images-after-more-than-20-serial-injections-of-macrocyclic-gadolinium-based-contrast-agents
#3
Alexander Radbruch, Robert Haase, Pascal J Kieslich, Lukas D Weberling, Philipp Kickingereder, Wolfgang Wick, Heinz-Peter Schlemmer, Martin Bendszus
Purpose To determine the effect of more than 20 serial injections of macrocyclic gadolinium-based contrast agents (GBCAs) on the signal intensity (SI) of the dentate nucleus (DN) on unenhanced T1-weighted magnetic resonance (MR) images. Materials and Methods In this retrospective, institutional review board-approved study, 33 patients who underwent at least 20 consecutive MR imaging examinations (plus an additional MR imaging for reference) with the exclusive use of macrocyclic GBCAs gadoterate meglumine and gadobutrol were analyzed...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27925832/twitter-as-a-tool-for-health-research-a-systematic-review
#4
Lauren Sinnenberg, Alison M Buttenheim, Kevin Padrez, Christina Mancheno, Lyle Ungar, Raina M Merchant
BACKGROUND: Researchers have used traditional databases to study public health for decades. Less is known about the use of social media data sources, such as Twitter, for this purpose. OBJECTIVES: To systematically review the use of Twitter in health research, define a taxonomy to describe Twitter use, and characterize the current state of Twitter in health research. SEARCH METHODS: We performed a literature search in PubMed, Embase, Web of Science, Google Scholar, and CINAHL through September 2015...
January 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/27925796/a-severe-asthma-disease-signature-from-gene-expression-profiling-of-peripheral-blood-from-u-biopred-cohorts
#5
Jeannette Bigler, Michael Boedigheimer, James P R Schofield, Paul J Skipp, Julie Corfield, Anthony Rowe, Ana R Sousa, Martin Timour, Lori Twehues, Xuguang Hu, Graham Roberts, Andrew A Welcher, Wen Yu, Kian F Chung, Ian M Adcock, Peter J Sterk, Ratko Djukanović
RATIONALE: Stratification of asthma at the molecular level, especially using accessible biospecimens, could greatly enable patient selection for targeted therapy. OBJECTIVES: To determine the value of blood to identify transcriptional differences between clinically defined asthmatic and non-asthmatic groups, identify potential patient subgroups based on gene expression, and explore biological pathways associated with identified differences. METHODS: Transcriptomics profiles were generated by microarray analysis of blood from 610 asthmatic and control participants in U-BIOPRED...
December 7, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27925701/effect-of-precompression-on-the-power-doppler-assessment-of-breast-lesion-vascularity
#6
Robert DeVita, Richard G Barr
OBJECTIVES: To evaluate the effect of precompression on power Doppler visualization of blood flow in breast masses. METHODS: This Institutional Review Board-approved and Health Insurance Portability and Accountability Act-compliant study evaluated 30 patients with breast masses (16 benign and 14 malignant) undergoing ultrasound-guided breast biopsy. A computational mathematics program was used to calculate the number of color pixels in a region of interest at various degrees of compression of the breast by the transducer...
November 30, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27925670/limited-abdominal-sonography-for-evaluation-of-children-with-right-lower-quadrant-pain
#7
Martha M Munden, Shannon Wai, Michael C DiStefano, Wei Zhang
OBJECTIVES: To determine whether a complete abdominal sonographic examination is necessary in the evaluation of children with right lower quadrant pain that is suspicious for appendicitis in the emergency department and whether performing a limited, more-focused study would miss clinically important disease. METHODS: With Institutional Review Board approval, a retrospective study was performed of 704 patients, from ages 5-19 years, presenting to the emergency department with right lower quadrant pain that was suspicious for appendicitis who underwent a complete abdominal sonographic examination...
November 30, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27925585/using-contact-forces-and-robot-arm-accelerations-to-automatically-rate-surgeon-skill-at-peg-transfer
#8
Jeremy Brown, Conor O'Brien, Sarah Leung, Kristoffel Dumon, David Lee, Katherine Kuchenbecker
OBJECTIVE: Most trainees begin learning robotic minimally invasive surgery by performing inanimate practice tasks with clinical robots such as the Intuitive Surgical da Vinci. Expert surgeons are commonly asked to evaluate these performances using standardized five-point rating scales, but doing such ratings is time consuming, tedious, and somewhat subjective. This article presents an automatic skill evaluation system that analyzes only the contact force with the task materials, the broad-bandwidth accelerations of the robotic instruments and camera, and the task completion time...
December 2, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27925495/eov-ed-board
#9
(no author information available yet)
No abstract text is available yet for this article.
December 2016: Current Eye Research
https://www.readbyqxmd.com/read/27924648/editorial-board-eov
#10
(no author information available yet)
No abstract text is available yet for this article.
2016: Clinical Linguistics & Phonetics
https://www.readbyqxmd.com/read/27924241/sleep-and-fatigue-among-seafarers-the-role-of-environmental-stressors-duration-at-sea-and-psychological-capital
#11
Sigurd W Hystad, Jarle Eid
BACKGROUND: Seafaring is an inherently stressful environment. Because working time and leisure time is spent in the same confined environment for a prolonged period of time, many stressors present in seafaring can also be conceived of as chronic. We explored the effects of duration at sea, seafaring experience, environmental stressors, and psychological capital (PsyCap) on the sleep quality and fatigue of seafarers. PsyCap is a construct that draws upon ideas from positive psychology and positive organizational behavior, and is intended to capture an individual's psychological capacities that can be developed and utilized for performance improvements...
December 2016: Safety and Health At Work
https://www.readbyqxmd.com/read/27923959/editorial-advisory-board
#12
(no author information available yet)
No abstract text is available yet for this article.
December 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27923745/retrospective-correction-of-bias-in-diffusion-tensor-imaging-arising-from-coil-combination-mode
#13
Ken Sakaie, Mark Lowe
PURPOSE: To quantify and retrospectively correct for systematic differences in diffusion tensor imaging (DTI) measurements due to differences in coil combination mode. BACKGROUND: Multi-channel coils are now standard among MRI systems. There are several options for combining signal from multiple coils during image reconstruction, including sum-of-squares (SOS) and adaptive combine (AC). This contribution examines the bias between SOS- and AC-derived measures of tissue microstructure and a strategy for limiting that bias...
December 3, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27923717/characterization-of-exploratory-activity-and-learning-ability-of-healthy-and-schizophrenia-like-rats-in-a-square-corridor-system-ambitus
#14
G Horvath, P Liszli, G Kekesi, A Büki, G Benedek
The rodent tasks with food rewards are useful methods to evaluate memory functions, including hole-board and corridor tests. The AMBITUS system (a square corridor with several food rewards), as a combination of these tests, was developed for the investigation of a variety of parameters associated with exploration and cognitive performance in rodents. Experiments were performed to characterize these behaviors in healthy rats and a new "schizophrenia-like" rat substrain with impaired learning ability to reveal the reliability in tests related to these functions...
December 3, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27923551/absorbed-dose-and-image-quality-of-varian-truebeam-cbct-compared-with-obi-cbct
#15
Daisuke Kawahara, Shuichi Ozawa, Takeo Nakashima, Tatsuhiko Suzuki, Masato Tsuneda, Sodai Tanaka, Yoshimi Ohno, Yuji Murakami, Yasushi Nagata
PURPOSE: Nowadays, patient positioning and target localization can be verified by using kilovolt cone beam computed tomography (kV-CBCT). There have been various studies on the absorbed doses and image qualities of different kV-CBCT systems. However, the Varian TrueBeam CBCT (TB CBCT) system has not been investigated so far. We assess the image quality and absorbed dose of TB CBCT through comparison with those of on-board imager (OBI) CBCT. METHODS: The image quality was evaluated using two phantoms...
December 3, 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/27923216/efficacy-of-a-cellular-bone-allograft-for-foot-and-ankle-arthrodesis-and-revision-nonunion-procedures
#16
Travis J Dekker, Peter White, Samuel B Adams
BACKGROUND: Bone graft substitutes are often required in patients at risk for nonunion, and therefore, an allograft that most closely mimics an autograft is highly sought after. This study explored the utility and efficacy of a cellular bone allograft used for foot and ankle arthrodesis and revision nonunion procedures in a patient population at risk for nonunion. METHODS: An institutional review board-approved retrospective review of consecutive patients who underwent arthrodesis and revision nonunion procedures with a cellular bone allograft was performed at a single academic institution...
October 23, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27923150/an-analysis-of-alumni-performance-a-study-of-the-quality-of-nursing-education
#17
Serap Altuntaş, Ülkü Baykal
BACKGROUND: The professional performance level of their alumni is one of the quality indicators of educational institutions. Nursing education institutions can use their alumni's performance analysis results to enhance their curricula, eliminate deficiencies, improve the quality of education and graduate more highly qualified nurses. OBJECTIVE AND DESIGN: This is a descriptive, cross-sectional and comparative study, which aimed to determine the professional performances of nurses who graduated from the same nursing faculty...
November 29, 2016: Nurse Education Today
https://www.readbyqxmd.com/read/27923089/correlations-between-ratings-on-the-resident-annual-evaluation-summary-and-the-internal-medicine-milestones-and-association-with-abim-certification-examination-scores-among-us-internal-medicine-residents-2013-2014
#18
Karen E Hauer, Jonathan Vandergrift, Brian Hess, Rebecca S Lipner, Eric S Holmboe, Sarah Hood, William Iobst, Stanley J Hamstra, Furman S McDonald
Importance: US internal medicine residency programs are now required to rate residents using milestones. Evidence of validity of milestone ratings is needed. Objective: To compare ratings of internal medicine residents using the pre-2015 resident annual evaluation summary (RAES), a nondevelopmental rating scale, with developmental milestone ratings. Design, Setting, and Participants: Cross-sectional study of US internal medicine residency programs in the 2013-2014 academic year, including 21 284 internal medicine residents (7048 postgraduate-year 1 [PGY-1], 7233 PGY-2, and 7003 PGY-3)...
December 6, 2016: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/27922990/robotically-assisted-thoracic-surgery-proposed-guidelines-for-privileging-and-credentialing
#19
Faiz Y Bhora, Adnan M Al-Ayoubi, Sadiq S Rehmani, Craig M Forleiter, Wissam N Raad, Scott G Belsley
OBJECTIVE: Increased use of robotically assisted thoracic surgery (RATS) necessitates effective credentialing guidelines to ensure safe outcomes. We provide a stepwise algorithm for granting privileges and credentials in RATS. This algorithm reflects graduated responsibility and complexity of the surgical procedures performed. Furthermore, it takes into account volume, outcomes, surgeon's competency, and appropriateness of robot usage. METHODS: We performed a literature review for available strategies to grant privileges and credentials for implementing robotic surgery...
December 5, 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27922974/training-and-validating-a-deep-convolutional-neural-network-for-computer-aided-detection-and-classification-of-abnormalities-on-frontal-chest-radiographs
#20
Mark Cicero, Alexander Bilbily, Errol Colak, Tim Dowdell, Bruce Gray, Kuhan Perampaladas, Joseph Barfett
OBJECTIVES: Convolutional neural networks (CNNs) are a subtype of artificial neural network that have shown strong performance in computer vision tasks including image classification. To date, there has been limited application of CNNs to chest radiographs, the most frequently performed medical imaging study. We hypothesize CNNs can learn to classify frontal chest radiographs according to common findings from a sufficiently large data set. MATERIALS AND METHODS: Our institution's research ethics board approved a single-center retrospective review of 35,038 adult posterior-anterior chest radiographs and final reports performed between 2005 and 2015 (56% men, average age of 56, patient type: 24% inpatient, 39% outpatient, 37% emergency department) with a waiver for informed consent...
December 5, 2016: Investigative Radiology
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