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https://www.readbyqxmd.com/read/27920858/beware-of-positive-pressure-coronary-artery-air-embolism-following-percutaneous-lung-biopsy
#1
Dmitriy N Kazimirko, William B Beam, Khalid Saleh, Akash M Patel
Patients undergoing percutaneous lung biopsy are at risk of developing a systemic air embolism. Air embolism may manifest as a catastrophic iatrogenic event with ischemic insult to the end organs, with sites of least resistance such as coronary and cerebral circulation the most susceptible. We review the available literature and present a case of iatrogenic air embolism during computed tomography guided percutaenous lung biopsy under general anesthesia. Management, outcome, and periprocedural factors that may have contributed to the complication are discussed...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920847/liposarcoma-metastases-to-the-small-bowel-presenting-as-fat-density-intraluminal-lesions
#2
Steven P Rowe, Stephanie F Coquia, Pamela T Johnson, Elliot K Fishman
Metastatic disease to the small bowel is rare; however, it is important to recognize that when it does occurs a variety of complications are possible including obstruction, gastrointestinal bleeding, intussusception, and bowel perforation. We present here an unusual case of small bowel metastases in a patient with known metastatic liposarcoma in which the lesions manifested as rapidly evolving fat-density masses that necessitated segmental small bowel resection. Careful scrutiny of the small bowel in oncology patients is necessary to guide appropriate treatment and avoid potential catastrophic complications from small bowel metastases...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920720/validation-of-online-versions-of-tinnitus-questionnaires-translated-into-swedish
#3
Karolina Müller, Niklas K Edvall, Esma Idrizbegovic, Robert Huhn, Rilana Cima, Viktor Persson, Constanze Leineweber, Hugo Westerlund, Berthold Langguth, Winfried Schlee, Barbara Canlon, Christopher R Cederroth
Background: Due to the lack of objective measures for assessing tinnitus, its clinical evaluation largely relies on the use of questionnaires and psychoacoustic tests. A global assessment of tinnitus burden would largely benefit from holistic approaches that not only incorporate measures of tinnitus but also take into account associated fears, emotional aspects (stress, anxiety, and depression), and quality of life. In Sweden, only a few instruments are available for assessing tinnitus, and the existing tools lack validation...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27919776/state-versus-trait-validating-state-assessment-of-child-and-parental-catastrophic-thinking-about-children-s-acute-pain
#4
Hannah Durand, Kathryn A Birnie, Melanie Noel, Tine Vervoort, Liesbet Goubert, Katelynn E Boerner, Christine T Chambers, Line Caes
: Pain catastrophizing has emerged as one of the most robust predictors of child pain outcomes. Although assessments of state (i.e., situation-specific) pain catastrophizing in children and parents are often used, their psychometric properties are unknown. This study aimed to assess factor structure, reliability and predictive validity of state versions of Pain Catastrophizing Scales for children (PCS-C State) and parents (PCS-P State) relative to corresponding trait versions for child and parental pain-related outcomes...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919772/pain-anxiety-and-its-association-with-pain-congruence-trajectories-during-the-cold-pressor-task
#5
S M Clark, A Cano, L Goubert, J W S Vlaeyen, L H Wurm, A M Corley
: Incongruence of pain severity ratings among people experiencing pain and their observers has been linked to psychological distress. Previous studies have measured pain rating congruence through static self-report, involving a single rating of pain; however, this method does not capture changes in ratings over time. The present study examined the extent to which partners were congruent on multiple ratings of a participants' pain severity during the cold pressor task. Furthermore, two components of pain anxiety-pain catastrophizing and perceived threat-were examined as predictors of pain congruence...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919144/-manfredonia-southern-italy-a-continuous-catastrophe-newfound-citizenship-and-removal
#6
Giulia Malavasi
This article concerns the history of Manfredonia (Apulia Region, Southern Italy), linked to the petrochemical industry owned by Eni (from 1960s to 1990s). The city suffered not only an important accident occurred in 1976 with arsenic dissemination, but also a continuous catastrophe. In the 1980s, the popular movement contributed to an improved citizenship, but also to rifts and conflicts. The petrochemical impact on community determined disruption in domestic and social relationships, divided memory, and removal...
November 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27918375/treatments-and-other-prognostic-factors-in-the-management-of-the-open-abdomen-a-systematic-review
#7
Adam T Cristaudo, Scott B Jennings, Kerry Hitos, Ronny Gunnarsson, Alan DeCosta
BACKGROUND: The open abdomen (OA) is an important approach for managing intra-abdominal catastrophes and continues to be the standard of care. Despite this, challenges remain with it associated with a high incidence of complications and poor outcomes. The objective of this article is to perform a systematic review in accordance with PRISMA guidelines to identify prognostic factors in OA patients in regards to definitive fascial closure (DFC), mortality and intra-abdominal complications...
November 30, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27917298/lambl-s-excrescences-a-case-report-and-review-of-the-literature
#8
Haroon Kamran, Nirav Patel, Gagandeep Singh, Venu Pasricha, Moro Salifu, Samy I McFarlane
Lambl's excrescences are filamentous extensions of cardiac valves, mostly asymptomatic but rarely associated with catastrophic thromboembolic events such as acute ischemic stroke and acute coronary syndromes. Numerous case reports cited in the literature have addressed various spectrum of presentation of these syndromes and their outcomes based on therapies used. We encountered such a patient from our own experience who presented with an acute ischemic stroke with no other identifiable cause other than the Lambl's excrescences...
2016: Clinical Case Reports and Reviews
https://www.readbyqxmd.com/read/27916685/finding-the-right-fit-studying-the-biomechanics-of-under-tapping-with-varied-thread-depth-and-pitch
#9
Ehsan Jazini, Carmen Petraglia, Mark Moldavsky, Oliver Tannous, Tristan Weir, Comron Saifi, Omar Elkassabany, Yiwei Cai, Brandon Bucklen, Joseph O'Brien, Steven C Ludwig
BACKGROUND CONTEXT: Compromise of pedicle screw purchase is a concern in maintaining rigid spinal fixation, especially with osteoporosis. Little consistency exists among various tapping techniques. Pedicle screws are often prepared with taps of a smaller diameter, which can further exacerbate inconsistency. PURPOSE: To determine whether a mismatch between tap thread depth (D) and pitch (P) and screw thread D and P affects fixation when under-tapping in osteoporotic bone...
December 1, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27915069/systematic-review-of-the-efficacy-of-particulate-vs-non-particulate-corticosteroids-in-epidural-injections
#10
REVIEW
Priyesh Mehta, Isaac Syrop, Jaspal Ricky Singh, Jonathan Kirschner
OBJECTIVE: To systematically analyze published studies in regards to the comparative efficacy of particulate versus non-particulate corticosteroids for cervical and lumbosacral epidural steroid injections (ESI) in reducing pain and improving function. TYPE: Systematic Review LITERATURE SURVEY: MEDLINE (Ovid), EMBASE, and Cochrane databases were searched from the period of 1950 to December 2015. METHODOLOGY: Criteria for inclusion in this review were: 1) Randomized controlled trials and 2) Retrospective studies comparing particulate versus non-particulate medication in fluoroscopically guided injections using a transforaminal (TF) or interlaminar (IL) approach...
November 30, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27914985/combination-therapy-with-doxorubicin-loaded-galactosylated-poly-ethyleneglycol-lithocholic-acid-to-suppress-the-tumor-growth-in-an-orthotopic-mouse-model-of-liver-cancer
#11
Bijay Singh, Yoonjeong Jang, Sushila Maharjan, Hyeon-Jeong Kim, Ah Young Lee, Sanghwa Kim, Nomundelger Gankhuyag, Myeon-Sik Yang, Yun-Jaie Choi, Myung-Haing Cho, Chong-Su Cho
Despite advances in technology, neither conventional anti-cancer drugs nor current nanoparticle (NP) drugs have gained substantial success in cancer treatment. While conventional chemotherapy drugs have several limitations such as low potency, poor in vivo stability and limited bioavailability, non-specific targeting of NP drugs diminishes their potency at actual target sites. In addition, the development of drug resistance to anti-cancer drugs is another challenging problem. To overcome these limitations, we aimed to develop a polymer-drug conjugate, which functions as an active NP drug and drug carrier both, to deliver a chemotherapeutic drug for combination therapy...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914722/poor-expectations-of-knee-replacement-benefit-are-associated-with-modifiable-psychological-factors-and-influence-the-decision-to-have-surgery-a-cross-sectional-and-longitudinal-study-of-a-community-based-sample
#12
Daniel L Riddle, Gregory J Golladay, Amanda Hayes, Hassan M K Ghomrawi
BACKGROUND: Total knee arthroplasty (TKA) is a highly effective surgery, but is underutilized by some patient groups. This study determined factors associated with a person's expectations with respect to pain and walking function following a TKA procedure, should they elect to undergo a TKA. METHODS: A total of 3542 people were studied with or at risk of knee osteoarthritis and enrolled in the community-based Osteoarthritis Initiative (OAI). Multivariable logistic regression analyses identified demographic, socioeconomic, osteoarthritis-related, joint replacement awareness, and psychological correlates as poor outcome expectations...
November 30, 2016: Knee
https://www.readbyqxmd.com/read/27912056/conflict-resolution-in-the-genome-how-transcription-and-replication-make-it-work
#13
REVIEW
Stephan Hamperl, Karlene A Cimprich
The complex machineries involved in replication and transcription translocate along the same DNA template, often in opposing directions and at different rates. These processes routinely interfere with each other in prokaryotes, and mounting evidence now suggests that RNA polymerase complexes also encounter replication forks in higher eukaryotes. Indeed, cells rely on numerous mechanisms to avoid, tolerate, and resolve such transcription-replication conflicts, and the absence of these mechanisms can lead to catastrophic effects on genome stability and cell viability...
December 1, 2016: Cell
https://www.readbyqxmd.com/read/27911921/what-is-the-economic-burden-of-subsidized-hiv-aids-treatment-services-on-patients-in-nigeria-and-is-this-burden-catastrophic-to-households
#14
Enyi Etiaba, Obinna Onwujekwe, Kwasi Torpey, Benjamin Uzochukwu, Robert Chiegil
BACKGROUND: A gap in knowledge exists regarding the economic burden on households of subsidized anti-retroviral treatment (ART) programs in Nigeria. This is because patients also incur non-ART drug costs, which may constrain the delivery and utilisation of subsidized services. METHODS: An exit survey of adults (18+years) attending health facilities for HIV/AIDS treatment was conducted in three states in Nigeria (Adamawa, Akwa Ibom and Anambra). In the states, ART was fully subsidized but there were different payment modalities for other costs of treatment...
2016: PloS One
https://www.readbyqxmd.com/read/27911884/desorption-of-water-from-hydrophilic-mcm-41-mesopores-positron-annihilation-ftir-and-md-simulation-studies
#15
Priya Maheshwari, D Dutta, T Muthulakshmi, B Chakraborty, N Raje, P K Pujari
The desorption mechanism of water from the hydrophilic mesopores of MCM-41 was studied using positron annihilation lifetime spectroscopy (PALS) and attenuated total reflection Fourier transform infrared spectroscopy supplemented with molecular dynamics (MD) simulation. PALS results indicated that water molecules do not undergo sequential evaporation in a simple layer-by-layer manner during desorption from MCM-41 mesopores. The results suggested that the water column inside the uniform cylindrical mesopore become stretched during desorption and induces cavitation (as seen in the case of ink-bottle type pores) inside it, keeping a dense water layer at the hydrophilic pore wall, as well as a water plug at both the open ends of the cylindrical pore, until the water was reduced to a certain volume fraction where the pore catastrophically empties...
December 2, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/27911527/unraveling-the-anomalous-grain-size-dependence-of-cavitation
#16
J W Wilkerson, K T Ramesh
Experimental studies have identified an anomalous grain size dependence associated with the critical tensile pressure that a metal may sustain before catastrophic failure by cavitation processes. Here we derive the first quantitative theory (and its associated closed-form solution) capable of explaining this phenomena. The theory agrees well with experimental measurements and atomistic calculations over a very wide range of conditions. Utilizing this theory, we are able to map out three distinct regimes in which the critical tensile pressure for cavitation failure (i) increases with decreasing grain size in accordance with conventional wisdom, (ii) nonintuitively decreases with decreasing grain size, and (iii) is independent of grain size...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27909956/docking-and-three-dimensional-quantitative-structure-activity-relationship-analyses-of-imidazole-and-thiazolidine-derivatives-as-aurora-a-kinase-inhibitors
#17
Chaeuk Im
Aurora A kinase is involved in the inactivation of apoptosis leading to ovarian, breast, colon, and pancreatic cancers. Inhibitors of Aurora A kinase promote aberrant mitosis resulting in arrest at a pseudo G1 state to induce mitotic catastrophe, ultimately leading to apoptosis. In this study, ligand-based and docking-based three-dimensional quantitative structure-activity relationship (3D-QSAR) analyses of imidazole and thiazolidine derivatives as potential Aurora A kinase inhibitors were performed. The results provided highly reliable and predictive 3D-QSAR comparative molecular similarity index analysis (CoMSIA) models with a cross-validated q(2) value of 0...
December 1, 2016: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/27909576/zika-antiviral-chemotherapy-identification-of-drugs-and-promising-starting-points-for-drug-discovery-from-an-fda-approved-library
#18
Bruno S Pascoalino, Gilles Courtemanche, Marli T Cordeiro, Laura H V G Gil, Lucio Freitas-Junior
Background The recent epidemics of Zika virus (ZIKV) implicated it as the cause of serious and potentially lethal congenital conditions such microcephaly and other central nervous system defects, as well as the development of the Guillain-Barré syndrome in otherwise healthy patients. Recent findings showed that anti-Dengue antibodies are capable of amplifying ZIKV infection by a mechanism similar to antibody-dependent enhancement, increasing the severity of the disease. This scenario becomes potentially catastrophic when the global burden of Dengue and the advent of the newly approved anti-Dengue vaccines in the near future are taken into account...
2016: F1000Research
https://www.readbyqxmd.com/read/27909275/-pseudoaneurysm-formation-after-aortic-root-replacement-using-freestyle-porcine-bioprosthesis
#19
Tetsuro Uchida, Azumi Hamasaki, Atsushi Yamashita, Ken Nakamura, Jun Hayashi, Satoko Funata, Seigo Gomi, Mitsuaki Sadahiro
We report a case of pseudoaneurysm formation after implantation of Medtronic Freestyle stentless bioprosthesis with a full root technique. A 65-year-old man previously underwent aortic root replacement with a Freestyle bioprosthesis. Ten years after the initial operation, pseudoaneurysm of the aortic root with a diameter of 6 cm was observed by computed tomography. At the reoperation, there was no sign of infective endocarditis, and the pseudoaneurysm was found to originate from the ruptured left and noncoronary sinuses...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908838/pain-related-rumination-but-not-magnification-or-helplessness-mediates-race-and-sex-differences-in-experimental-pain
#20
Samantha M Meints, Madison Stout, Samuel Abplanalp, Adam T Hirsh
: Compared to White individuals and men, Black individuals and women demonstrate a lower tolerance for experimental pain stimuli. Previous studies suggest that pain catastrophizing is important in this context, but little is known about which components of catastrophizing contribute to these race and sex differences. The purpose of the current study was to examine the individual components of catastrophizing (rumination, magnification, and helplessness) as candidate mediators of race and sex differences in experimental pain tolerance...
November 28, 2016: Journal of Pain: Official Journal of the American Pain Society
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