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https://www.readbyqxmd.com/read/28435929/megacolon-as-an-atypical-presentation-of-cervical-myelopathy
#1
Jacob Y L Oh, Kevin J H Kwek, Seh-Wee Tee, Mark Tan
A 61-year-old gentleman was admitted with progressive symptoms of cervical myelopathy. An MRI performed showed severe compression from C3-6 with cord signal changes. He was offered surgical intervention but the operation had to be delayed because of worsening abdominal distension. X-rays performed showed a severely dilated colon measuring >12 cm. A CT did not show any obstructive cause. He was managed conservatively for more than 2 weeks but did not improve. As his symptoms continued to worsen, a decision was made to proceed with a C3-6 posterior decompression and fusion, despite the theoretical risk of bacterial translocation predisposing him to infection...
March 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28435914/factors-predictive-of-topographical-accuracy-in-spine-level-localization
#2
Jin W Tee, Joost Rutges, Travis Marion, John Street, Scott Paquette, Tamir Ailon, Brian K Kwon, Marcel Dvorak, Michael Boyd
BACKGROUND: Pre-operative spine level localization by palpation of anatomical landmarks (ribs, spinous processes) in posterior approaches for surgeries from T4 to L2 is often inaccurate. This can lead to ineffective utilization of procedural time, increased radiation dose, potentially longer skin incision and wrong level surgery. Factors affecting topographical accuracy includes body mass index (BMI) of the patient, congenital or acquired deformity and knowledge of topographical anatomy...
March 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28433951/transesophageal-echocardiography-in-the-evaluation-of-the-trauma-patient-a-trauma-resuscitation-transesophageal-echocardiography-exam
#3
REVIEW
Stefan W Leichtle, Andrew Singleton, Mandeep Singh, Matthew J Griffee, Joshua M Tobin
The point-of-care ultrasound exam has become an essential tool for hemodynamic monitoring and resuscitation in the trauma bay as well as the intensive care unit. Transthoracic ultrasound provides a dynamic assessment of cardiac function, volume status, and fluid responsiveness that offers potential advantage over traditional methods of hemodynamic monitoring. More recently, a focused transthoracic echocardiography exam was described to improve immediate resuscitation of severely injured patients in the trauma bay...
April 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28433223/risk-of-intraatrial-thrombi-after-thoracoscopic-ablation-in-absence-of-heparin-and-appendage-closure
#4
Petr Budera, Pavel Osmancik, Dalibor Herman, David Talavera, Robert Petr, Zbynek Straka
BACKGROUND: Catheter and surgical ablation of atrial fibrillation (AF) can be associated with a risk of thromboembolic events. The goal of this study was to assess optimal anticoagulation management during thoracoscopic ablation of AF. METHODS: Fifty-two patients with persistent or long-standing persistent AF underwent hybrid ablation consisting of thoracoscopic ablation followed by electrophysiologic (EP) evaluation and consecutive ablation if indicated. The thoracoscopic ablation was performed using three different anticoagulation protocols: (1) without periprocedural heparin and without occlusion of the left atrial appendage; (2) with periprocedural heparin but without left atrial appendage occlusion; and (3) with periprocedural heparin and left atrial appendage occlusion...
April 19, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431420/generative-retrieval-improves-learning-and-retention-of-cardiac-anatomy-using-transesophageal-echocardiography
#5
Amanda M Kleiman, Katherine T Forkin, Allison J Bechtel, Stephen R Collins, Jennie Z Ma, Edward C Nemergut, Julie L Huffmyer
BACKGROUND: Transesophageal echocardiography (TEE) is a valuable monitor for patients undergoing cardiac and noncardiac surgery as it allows for evaluation of cardiovascular compromise in the perioperative period. It is challenging for anesthesiology residents and medical students to learn to use and interpret TEE in the clinical environment. A critical component of learning to use and interpret TEE is a strong grasp of normal cardiovascular ultrasound anatomy. METHODS: Fifteen fourth-year medical students and 15 post-graduate year (PGY) 1 and 2 anesthesiology residents without prior training in cardiac anesthesia or TEE viewed normal cardiovascular anatomy TEE video clips; participants were randomized to learning cardiac anatomy in generative retrieval (GR) and standard practice (SP) groups...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28429136/is-there-an-alternative-treatment-for-patients-intolerant-to-antiplatelet-therapy-if-percutaneous-left-atrial-appendage-closure-is-considered
#6
F Akca, N J Verberkmoes, S E Verstraeten, C van Laar, B P van Putte, A H M van Straten
INTRODUCTION: Left atrial appendage (LAA) closure has become of major interest for patients with atrial fibrillation intolerant to oral anticoagulation therapy (OAC). Patients with a contraindication to both OAC and antiplatelet therapy are not eligible for percutaneous LAA closure. We aimed to find an alternative treatment for these specific patients. METHODS: From March 2014 until December 2015 five patients were referred for percutaneous LAA closure. Alternative treatment was necessary due to an absolute contraindication to OAC and antiplatelet therapy (n = 4) or after previous failed percutaneous device implantation (n = 1)...
April 20, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28424415/clinicopathological-features-and-outcome-of-chronic-lymphocytic-leukaemia-in-chinese-patients
#7
Thomas Sau-Yan Chan, Yuh-Shan Lee, Ilaria Del Giudice, Marilisa Marinelli, Caterina Ilari, Luciana Cafforio, Anna Guarini, Daryl Tan, Colin Phipps, Yeow-Tee Goh, William Hwang, Allan Zhi-Kai Goh, Lisa Lai-Ping Siu, Saliangi Wu, Chun-Yin Ha, Shek-Ying Lin, Chi-Hang Kwok, Chi-Kuen Lau, Kit-Fai Wong, Robin Foà, Yok-Lam Kwong, Eric Tse
Chronic lymphocytic leukaemia (CLL) is uncommon in Chinese population and its biology, genetics and treatment outcome in Chinese patients have not been comprehensively investigated. In this study, we studied the clinicopathological features and outcome of 212 Chinese patients with newly diagnosed CLL in Hong Kong and Singapore. The median age at diagnosis was 64 years. The majority of patients presented with early-stage disease (Binet stage A, 56.1%). Del(13)(q14) was the most frequent abnormality (41.7%) detected by fluorescence in situ hybridization (FISH) analysis...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423634/early-assessment-of-tumor-response-to-photodynamic-therapy-using-combined-diffuse-optical-and-diffuse-correlation-spectroscopy-to-predict-treatment-outcome
#8
Patricia Thong, Kijoon Lee, Hui-Jin Toh, Jing Dong, Chuan-Sia Tee, Kar-Perng Low, Pui-Haan Chang, Ramaswamy Bhuvaneswari, Ngian-Chye Tan, Khee-Chee Soo
Photodynamic therapy (PDT) of cancer involves the use of a photosensitizer that can be light-activated to eradicate tumors via direct cytotoxicity, damage to tumor vasculature and stimulating the body's immune system. Treatment outcome may vary between individuals even under the same regime; therefore a non-invasive tumor response monitoring system will be useful for personalization of the treatment protocol. We present the combined use of diffuse optical spectroscopy (DOS) and diffuse correlation spectroscopy (DCS) to provide early assessment of tumor response...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423128/peratrial-device-closure-of-atrial-septal-defect-under-transesophageal-echocardiographic-guidance-without-fluoroscopy-compared-to-conventional-on-pump-surgical-closure
#9
Zhixiang Guo, Chengxin Zhang, Huan Wang, Shenglin Ge
Objective: This study is designed to evaluate the advantages between peratrial device closure under transesophageal echocardiographic guidance and open heart surgery in atrial septal defect. Methods: From November 2011 to September 2014, 28 patients with atrial septal defect were treated. Fourteen patients received peratrial device closure under transesophageal echocardiographic guidance (TEE group) and 14 patients received cardiopulmonary bypass (CPB group). Clinical parameters during intraoperative and postoperative periods were examined...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28419616/the-provision-of-pediatric-cardiac-anesthesia-services-in-germany-current-status-of-structural-and-personnel-organization
#10
Torsten Baehner, Oliver Dewald, Ingo Heinze, Matthias Mueller, Ehrenfried Schindler, Uwe Schirmer, Georg Baumgarten, Andreas Hoeft, Richard K Ellerkmann
BACKGROUND: Anesthesia for pediatric cardiac surgery requires a high level of expert knowledge. There are currently no recommendations and standards for anesthetic management for congenital cardiac surgery in Germany. AIM: The aim of the present study was to assess the current status of structural and personnel anesthetic standards at pediatric cardiac surgery centers in Germany. METHOD: All cardiac surgical centers in Germany were reviewed for an active program for congenital heart surgery...
April 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28419475/fruit-and-vegetable-intake-and-prostate-cancer-risk-in-the-european-prospective-investigation-into-cancer-and-nutrition-epic
#11
Aurora Perez-Cornago, Ruth C Travis, Paul N Appleby, Konstantinos K Tsilidis, Anne Tjønneland, Anja Olsen, Kim Overvad, Verena Katzke, Tilman Kühn, Antonia Trichopoulou, Eleni Peppa, Maria Kritikou, Sabina Sieri, Domenico Palli, Carlotta Sacerdote, Rosario Tumino, H Bas Bueno-de-Mesquita, Antonio Agudo, Nerea Larrañaga, Elena Molina-Portillo, Eva Ardanaz, Maria-Dolores Chirlaque, Cristina Lasheras, Pär Stattin, Maria Wennberg, Isabel Drake, Johan Malm, Julie A Schmidt, Kay-Tee Khaw, Marc Gunter, Heinz Freisling, Inge Huybrechts, Dagfinn Aune, Amanda J Cross, Elio Riboli, Timothy J Key
Several dietary factors have been studied in relation to prostate cancer; however, most studies have not reported on subtypes of fruit and vegetables or tumor characteristics, and results obtained so far are inconclusive. This study aimed to examine the prospective association of total and subtypes of fruit and vegetable intake with the incidence of prostate cancer overall, by grade and stage of disease, and prostate cancer death. Lifestyle information for 142,239 men participating in the European Prospective Investigation into Cancer and Nutrition from 8 European countries was collected at baseline...
April 17, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28417676/bio-energy-generation-in-an-affordable-single-chamber-microbial-fuel-cell-integrated-with-adsorption-hybrid-system-effects-of-temperature-and-comparison-study
#12
Pei-Fang Tee, Mohammad Omar Abdullah, Ivy A W Tan, Mohamed A M Amin, Cirilo Nolasco-Hipolito, Kopli Bujang
A microbial fuel cell (MFC) intergrated with adsorption system (MFC-AHS) are tested under various operating tempartures with palm oil mill effluent (POME) as the substrate. The optimum operating temperature for such system is found to be at ∼ 35°C with current, power density, internal resistance (Rin), coulombic efficiency (CE) and maximum chemical oxygen demand (COD) removal of 2.51 ± 0.2 mA, 74 ± 6 mW m(-3), 25.4 Ω, 10.65 ± 0.5% and 93.57 ± 1.2%, respectively. Maximum current density increase linearly with temperature at a rate of 0...
April 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28415776/targeting-protein-homeostasis-with-nelfinavir-salinomycin-dual-therapy-effectively-induces-death-of-mtorc1-hyperactive-cells
#13
Elaine A Dunlop, Charlotte E Johnson, Marie Wiltshire, Rachel J Errington, Andrew R Tee
Uncontrolled cell growth in Tuberous Sclerosis Complex occurs due to inappropriate activation of mechanistic (mammalian) target of rapamycin complex 1 (mTORC1). The current therapy, rapamycin, produced promising clinical trial results, but patient tumours regrow if treatment is discontinued, revealing rapamycin has cytostatic properties rather than a cytotoxic effect. Taking advantage of the enhanced levels of endoplasmic reticulum (ER) stress present in TSC2-null cells, we investigated drug combinations producing a cytotoxic response...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414671/three-s-a-crowd-an-extremely-rare-case-of-cor-triatriatum-dexter
#14
A Elagizi, R Marvin, G O'Bryan, V Vyas, L Arcement
INTRODUCTION: Cor triatriatum is a congenital cardiac anomaly in which the left (sinister) or right (dexter) atrium is divided into two compartments by residual embryonic tissue, resulting in a tri-atrial heart. As cor triatriatum dextrum can present clinically in various ways and have multiple associated cardiac anomalies, this report attempts to contribute to what is known about this exceedingly rare disorder. CASE: A 40 year old Hispanic man with a medical history of gastritis presented with complaints of palpitations, dizziness and bilateral lower extremity edema...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414667/the-mysterious-case-of-dyspnea
#15
S Saad, N Turaga, J Grant, N Jain
INTRODUCTION: Dehiscence of a mitral valve annuloplasty ring is a rare occurrence that often manifests as mitral regurgitation and heart failure. We present a case of mitral ring dehiscence which was initially unrecognized by standard 2-dimensional transthoracic echocardiography (2D TTE); and 2-dimensional transesophageal echocardiography (2D TEE);. CASE: A 65-year-old woman was referred to Cardiology clinic for evaluation of dyspnea. Her history included tobacco abuse, atrial fibrillation status post pulmonary vein isolation, nonischemic cardiomyopathy, and prior mitral valve repair with annuloplasty ring for rheumatic valvular disease...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413114/left-atrial-appendage-thrombi-relate-to-easily-accessible-clinical-parameters-in-patients-undergoing-atrial-fibrillation-transcatheter-ablation-a-multicenter-study
#16
Matteo Anselmino, Lucia Garberoglio, Sebastiano Gili, Emanuele Bertaglia, Giuseppe Stabile, Raffaella Marazzi, Sakis Themistoclakis, Franceso Solimene, Simone Frea, Walter Grosso Marra, Mara Morello, Marco Scaglione, Roberto De Ponti, Fiorenzo Gaita
BACKGROUND: Transesophageal echocardiography (TEE) is routinely performed before atrial fibrillation (AF) transcatheter ablation to exclude the presence of left atrial (LA) or LA appendage (LAA) thrombi. The aim of the study is to evaluate if easily accessible clinical parameters may relate to the presence of LA or LAA thrombi to identify patients who could potentially avoid TEE. METHODS AND RESULTS: Between January 2012 and September 2014, data from 1539 consecutive patients undergoing TEE, as a work-up before AF transcatheter ablation, in six large volume centers were collected...
April 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28411261/feasibility-and-diagnostic-value-of-cardiovascular-magnetic-resonance-imaging-after-acute-ischemic-stroke-of-undetermined-origin
#17
Karl Georg Haeusler, Christian Wollboldt, Laura Zu Bentheim, Juliane Herm, Sebastian Jäger, Claudia Kunze, Holger-Carsten Eberle, Claudia Christina Deluigi, Oliver Bruder, Carolin Malsch, Peter U Heuschmann, Matthias Endres, Heinrich J Audebert, Andreas J Morguet, Christoph Jensen, Jochen B Fiebach
BACKGROUND AND PURPOSE: Etiology of acute ischemic stroke remains undetermined (cryptogenic) in about 25% of patients after state-of-the-art diagnostic work-up. METHODS: One-hundred and three patients with magnetic resonance imaging (MRI)-proven acute ischemic stroke of undetermined origin were prospectively enrolled and underwent 3-T cardiac MRI and magnetic resonance angiography of the aortic arch in addition to state-of-the-art diagnostic work-up, including transesophageal echocardiography (TEE)...
April 14, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28409793/diamond-ring-fiber-for-evanescent-field-exposure
#18
Wee Lit Ng, Wei Ru Wong, Ghafour Amouzad Mahdiraji, Ahmmed A Rifat, Din Chai Tee, Faisal Rafiq Mahamd Adikan
Diamond Ring Fiber (DRF) is proposed to allow a high percentage of evanescent field exposure while maintaining low confinement loss. It provides a long and protected medium for light-matter interaction and large cavities to ease the infiltration of sensing elements. DRFs with different waveguide parameters have been analyzed theoretically and fabricated using a stack-and-draw fiber drawing technique. Mode analysis has been performed experimentally on the fabricated fibers, while the confinement loss and the percentage of evanescent field exposure are examined by simulation...
April 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28409259/agreement-of-tricuspid-annular-systolic-excursion-measurement-between-transthoracic-and-transesophageal-echocardiography-in-the-perioperative-setting
#19
Anna Flo Forner, Elham Hasheminejad, Sergi Sabate, Michael A Ackermann, Edwin W Turton, Joerg Ender
OBJECTIVE: The aim of our study was to evaluate the level of agreement between tricuspid annular plane systolic excursion (TAPSE) measured by transthoracic echocardiography (TTE) and TAPSE measured using transesophageal echocardiography (TEE) in anesthetized patients. MATERIALS AND METHODS: Thirty patients scheduled for elective cardiac surgery were prospectively studied. Shortly after induction of anesthesia before the operation, TAPSE was measured by TTE using M-mode in apical 4chamber view (4CH) and by TEE in six different views: using 2D echocardiography in midesophageal (ME) 4CH view, using M-mode in deep transgastric right ventricle (dTG RV) view at 0° and dTG RV longaxis view (LAX) as well as using anatomical M-mode (AM-mode) in ME 4CH, dTG RV at 0° and dTG RV LAX views...
April 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28406683/evaluating-the-sources-and-functions-of-gradiency-in-phoneme-categorization-an-individual-differences-approach
#20
Efthymia C Kapnoula, Matthew B Winn, Eun Jong Kong, Jan Edwards, Bob McMurray
During spoken language comprehension listeners transform continuous acoustic cues into categories (e.g., /b/ and /p/). While long-standing research suggests that phonetic categories are activated in a gradient way, there are also clear individual differences in that more gradient categorization has been linked to various communication impairments such as dyslexia and specific language impairments (Joanisse, Manis, Keating, & Seidenberg, 2000; López-Zamora, Luque, Álvarez, & Cobos, 2012; Serniclaes, Van Heghe, Mousty, Carré, & Sprenger-Charolles, 2004; Werker & Tees, 1987)...
April 13, 2017: Journal of Experimental Psychology. Human Perception and Performance
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