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Oliver C Thiele, Matthias Kreppel, Anton Dunsche, Andre M Eckardt, Michael Ehrenfeld, Bernd Fleiner, Volker Gaßling, Gerd Gehrke, Marcus Gerressen, Martin Gosau, Alexander Gröbe, Stefan Haßfeld, Max Heiland, Bodo Hoffmeister, Frank Hölzle, Cornelius Klein, Maximilian Krüger, Alexander C Kübler, Norbert R Kübler, Johannes J Kuttenberger, Constantin Landes, Günter Lauer, Markus Martini, Erich T Merholz, Robert A Mischkowski, Bilal Al-Nawas, Emeka Nkenke, Jörn U Piesold, Winnie Pradel, Michael Rasse, Martin Rachwalski, Rudolf H Reich, Daniel Rothamel, Jan Rustemeyer, Martin Scheer, Henning Schliephake, Rainer Schmelzeisen, Alexander Schramm, Wiebke Schupp, Wolfgang J Spitzer, Erwin Stocker, Christian Stoll, Hendrik Terheyden, Alexander Voigt, Wilfried Wagner, Dieter Weingart, Richard Werkmeister, Jörg Wiltfang, Christoph M Ziegler, Joachim E Zöller
The current surgical techniques used in cleft repair are well established, but different centers use different approaches. To determine the best treatment for patients, a multi-center comparative study is required. In this study, we surveyed all craniofacial departments registered with the German Society of Maxillofacial Surgery to determine which cleft repair techniques are currently in use. Our findings revealed much variation in cleft repair between different centers. Although most centers did use a two-stage approach, the operative techniques and timing of lip and palate closure were different in every center...
February 6, 2018: Journal of Cranio-maxillo-facial Surgery
Amir Wolff, Gabriel F Santiago, Micah Belzberg, Charity Huggins, Michael Lim, Jon Weingart, William Anderson, Alex Coon, Judy Huang, Henry Brem, Chad Gordon
INTRODUCTION: Complex cranial defects requiring delayed reconstruction present numerous challenges. Delayed cranioplasties accompany frequent complications approaching an incidence of 35 to 40%. Therefore, the authors sought to collate their experience in hopes of sharing their perspective on several topics including technique, timing, and preferred biomaterials. METHODS: The authors' 5-year consecutive experience over 430 customized cranial implants is described herein...
February 27, 2018: Journal of Craniofacial Surgery
Saul N Weingart, Coral L Atoria, David Pfister, David Classen, Aileen Killen, Elizabeth Fortier, Andrew S Epstein, Christopher Anderson, Allison Lipitz-Snyderman
OBJECTIVE: The aim of the study was to identify risk factors associated with medical errors and iatrogenic injuries during an initial course of cancer-directed treatment. METHODS: In this retrospective cohort study of 400 patients 18 years or older undergoing an initial course of treatment for breast, colorectal, or lung cancer at a comprehensive cancer center, we abstracted patient, disease, and treatment-related variables from the electronic medical record. We examined adverse events (AEs) and preventable AEs by risk factor using the χ or Fisher exact tests...
February 6, 2018: Journal of Patient Safety
Mathieu Pioche, Angelique Denis, Hans-Dieter Allescher, Gianluca Andrisani, Guido Costamagna, Evelien Dekker, Paul Fockens, Christian Gerges, Stefan Groth, Jennis Kandler, Isabelle Lienhart, Horst Neuhaus, Lucio Petruzziello, Guido Schachschal, Kristien Tytgat, Jürgen Wallner, Vincens Weingart, Sandrine Touzet, Thierry Ponchon, Thomas Rösch
BACKGROUND AND AIMS: Numerous randomized studies have shown that changing certain features of colonoscopes, usually incorporated when switching from one endoscope generation to the next, mostly do not increase adenoma yield. There is, however, indirect evidence that it may be necessary to skip one instrument generation (ie, changing from one generation to the next but one) to achieve this effect. METHODS: We compared the latest-generation colonoscopes from one company (Olympus Exera III, 190-C) with the next to last one (Olympus 160/5-C) in a prospective multicenter study randomized for the order of colonoscopes in a tandem fashion, involving 2 different examiners...
January 30, 2018: Gastrointestinal Endoscopy
Elena Zvereva, Javier Segarra-Martí, Marco Marazzi, Johanna Brazard, Artur Nenov, Oliver Weingart, Jérémie Léonard, Marco Garavelli, Ivan Rivalta, Elise Dumont, Xavier Assfeld, Stefan Haacke, Antonio Monari
Benzophenone (BP) despite its relatively simple molecular structure is a paradigmatic sensitizer, featuring both photocatalytic and photobiological effects due to its rather complex photophysical properties. In this contribution we report an original theoretical approach to model realistic, ultra-fast spectroscopy data, which requires describing intra- and intermolecular energy and structural relaxation. In particular we explicitly simulate time-resolved pump-probe spectra using a combination of state-of-the art hybrid quantum mechanics/molecular mechanics dynamics to treat relaxation and vibrational effects...
January 31, 2018: Photochemical & Photobiological Sciences
Sadhana Jackson, Jon Weingart, Edjah K Nduom, Thura T Harfi, Richard T George, Dorothea McAreavey, Xiaobu Ye, Nicole M Anders, Cody Peer, William D Figg, Mark Gilbert, Michelle A Rudek, Stuart A Grossman
BACKGROUND: The blood-brain barrier (BBB) severely limits the entry of systemically administered drugs including chemotherapy to the brain. In rodents, regadenoson activation of adenosine A2A receptors causes transient BBB disruption and increased drug concentrations in normal brain. This study was conducted to evaluate if activation of A2A receptors would increase intra-tumoral temozolomide concentrations in patients with glioblastoma. METHODS: Patients scheduled for a clinically indicated surgery for recurrent glioblastoma were eligible...
January 15, 2018: Fluids and Barriers of the CNS
Lars Guenther, Peter Weingart
Against the background that surveys measuring public perceptions of science and technology are often removed from cultural contexts and do not equally represent all regions of the world, this study investigated attitudes towards science and technology among different publics of the South African population. To apply a culture-sensitive approach, theoretical considerations of cultural distance were combined with methodological considerations of segmentation studies, and representative data ( n = 3183) were reanalysed...
February 1, 2017: Public Understanding of Science
Peter Cameron, Simon Carley, Scott Weingart, Paul Atkinson
No abstract text is available yet for this article.
November 2017: CJEM
Carla Cristina Gomes Lourenço, Janaina Lana Alves, Eduardo Guatimosim, Adans Colman, Robert Weingart Barreto
A severe leaf spot, turning to foliage blight, was observed on leaves of Maranta leuconeura growing in a garden in Brazil (state of Rio de Janeiro) in 2015. A dematiaceous hyphomycete bearing a morphology typical of a helminthosporoid fungi was regularly found in association with diseased tissues. The fungus was isolated and pathogenicity was demonstrated through the completion of Koch's postulates. A morphology and molecular analysis led to the conclusion that the fungus belonged to the genus Bipolaris, which is characterized by having fusiform conidia, externally thickened and truncate hila and a bipolar pattern of germination...
September 2017: Mycobiology
Maxime E S Bronzwaer, Evelien Dekker, Vincens Weingart, Stefan Groth, Mathieu Pioche, Jérôme Rivory, Torsten Beyna, Horst Neuhaus, Thierry Ponchon, Hans Allescher, Paul Fockens, Thomas Rösch
Background and study aims The adenoma detection rate (ADR) of conventional colonoscopy can still be improved. We conducted a prospective multicenter cohort study to assess the feasibility, safety, and diagnostic yield of the Extra Wide Angle View (EWAVE) colonoscope, which offers a 235° view obtained from a forward-viewing and two lateral backward-viewing lenses incorporated into one image. Patients and methods The study was performed between November 2015 and June 2016. EWAVE colonoscopy was performed in patients with an increased risk of colorectal cancer by experienced and EWAVE-trained endoscopists (≥ 500 colonoscopies, ≥ 10 with the EWAVE system)...
November 13, 2017: Endoscopy
Igor Schapiro, Oliver Weingart
No abstract text is available yet for this article.
November 2017: Photochemistry and Photobiology
Jeff S Ehresman, Tomas Garzon-Muvdi, Davis Rogers, Michael Lim, Gary L Gallia, Jon Weingart, Henry Brem, Chetan Bettegowda, Kaisorn L Chaichana
OBJECTIVE: The Simpson grading system has played an important role in surgical resections of meningiomas. The aim of this study was to determine if this grading system predicts meningioma recurrence in a modern cohort of patients with tumors of all World Health Organization grades. METHODS: Adult patients who underwent primary, nonbiopsy resection of a meningioma at a tertiary care institution between 2007 and 2015 were retrospectively reviewed. Stepwise multivariate proportional hazard analyses were used to identify associations with recurrence after resection...
January 2018: World Neurosurgery
Setsuko Nakagawa, Oliver Weingart, Christel M Marian
The primary photochemical reaction of the light, oxygen, and voltage (LOV) domain of the blue-light photosensor YtvA of Bacillus subtilis were investigated using high-level QM(DFT/MRCI)/MM methods. After blue-light excitation, the Sγ atom of the reactive cysteine forms a covalent bond with the C4a of the flavin mononucleotide (FMN) ring. Two conformations for the side chain of reactive cysteine with occupancies of 70% (conf A) and 30% (conf B) are observed in the X-ray crystallographic structures of the YtvA-LOV ( Möglich , A...
October 4, 2017: Journal of Physical Chemistry. B
Rajiv Sainath, Lorena Armijo-Weingart, Andrea Ketscheck, Zhuxuan Xu, Shuxin Li, Gianluca Gallo
Chondroitin sulfate proteoglycans (CSPGs) are components of the extracellular matrix that inhibit the extension and regeneration of axons. However, the underlying mechanism of action remains poorly understood. Mitochondria and endoplasmic reticulum (ER) are functionally inter-linked organelles important to axon development and maintenance. We report that CSPGs impair the targeting of mitochondria and ER to the growth cones of chicken embryonic sensory axons. The effect of CSPGs on the targeting of mitochondria is blocked by inhibition of the LAR receptor for CSPGs...
December 2017: Developmental Neurobiology
Annahieta Kalantari, Haney Mallemat, Scott D Weingart
On October 1, 2015, the United States Centers for Medicare and Medicaid Services (CMS) issued a core measure addressing the care of septic patients. These core measures are controversial among healthcare providers. This article will address that there is no gold standard definition for sepsis, severe sepsis or septic shock and the CMS-assigned definitions for severe sepsis and septic shock are premature and inconsistent with evidence-based definitions.
August 2017: Western Journal of Emergency Medicine
Eric C Schneider, M Susan Ridgely, Denise D Quigley, Lauren E Hunter, Kristin J Leuschner, Saul N Weingart, Joel S Weissman, Karen P Zimmer, Robert C Giannini
This article describes the design, development, and testing of the Health Care Safety Hotline, a prototype consumer reporting system for patient safety events. The prototype was designed and developed with ongoing review by a technical expert panel and feedback obtained during a public comment period. Two health care delivery organizations in one metropolitan area collaborated with the researchers to demonstrate and evaluate the system. The prototype was deployed and elicited information from patients, family members, and caregivers through a website or an 800 phone number...
June 2017: Rand Health Quarterly
Irina Dokukina, Christel M Marian, Oliver Weingart
Polyenic systems are involved in light perception of numerous living organisms. Although a π-conjugated backbone is a common feature of all polyenes, their photophysics may vary. We provide a comparative quantum mechanical study of low-lying S1 and S2 excited states in short (3-5 double bonds) symmetric all-trans linear polyenes and corresponding protonated Schiff bases. In our investigation, we use the well-established ab initio multireference CASPT2 approach and benchmark the efficient semiempirical OM2-MRCI approach against it...
November 2017: Photochemistry and Photobiology
Allison Lipitz-Snyderman, David Pfister, David Classen, Coral L Atoria, Aileen Killen, Andrew S Epstein, Christopher Anderson, Elizabeth Fortier, Saul N Weingart
BACKGROUND: Patient safety is a critical concern in clinical oncology, but the ability to measure adverse events (AEs) across cancer care is limited by a narrow focus on treatment-related toxicities. The objective of this study was to assess the nature and extent of AEs among cancer patients across inpatient and outpatient settings. METHODS: This was a retrospective cohort study of 400 adult patients selected by stratified random sampling who had breast (n = 128), colorectal (n = 136), or lung cancer (n = 136) treated at a comprehensive cancer center in 2012...
December 1, 2017: Cancer
C Weingart, H-J Schneider, C C Sieber
Dizziness/vertigo, falls and syncope are among the most common reasons for seeking medical care. As clinical entities they share common pathogenetic and clinical features and differences. The diagnostic work-up can often be initiated in a general practitioner's or internist's practice and, if necessary, completed in an interdisciplinary emergency unit. Simple diagnostic tools can be used in an outpatient setting to obtain valuable diagnostic information. First and foremost, it is important to differentiate between prognostically favorable clinical events and potentially serious disease...
July 17, 2017: Der Internist
Shanshan Jiang, Charles G Eberhart, Yi Zhang, Hye-Young Heo, Zhibo Wen, Lindsay Blair, Huamin Qin, Michael Lim, Alfredo Quinones-Hinojosa, Jon D Weingart, Peter B Barker, Martin G Pomper, John Laterra, Peter C M van Zijl, Jaishri O Blakeley, Jinyuan Zhou
PURPOSE: Pathological assessment using World Health Organization (WHO) criteria is the gold standard for diagnosis of gliomas. However, the accuracy of diagnosis is limited by tissue sampling, particularly for infiltrating, heterogeneous tumours. We assessed the accuracy of amide proton transfer-weighted (APTw) magnetic resonance imaging (MRI)-guided tissue sampling to identify regions of high-grade glioma via radiographic-histopathologic correlation in patients with newly suspected glioma...
September 2017: European Journal of Cancer
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