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https://www.readbyqxmd.com/read/29471598/-ureteral-cancer-developing-in-retrocaval-ureter-a-case-report
#1
Yoshiaki Matsumura, Yusuke Iemura, Shinji Fukui, Yoriaki Kagebayashi, Shoji Samma, Shigehiro Tsujimoto, Takashi Okada, Toru Kanno
Ureteral cancer in the retrocaval ureter is rare. We herein report a patient with this condition laparoscopically treated. A 69-year-old man was referred to us because of right ureteral cancer diagnosed during ureteroscopic surgery for a ureteral calculus. Histological diagnosis of the ureteroscopically biopsied material was non-invasive papillary urothelial carcinoma, low grade (G2). Computed tomography (CT) demonstrated a retrocaval ureter : a double J stent placed during ureteroscopy assisted the diagnosis...
January 2018: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/29471439/robot-assisted-ligation-of-bronchial-artery-could-be-an-alternative-to-embolization
#2
Bruno Pochulu, Omar Sarsam, Christophe Peillon, Jean-Marc Baste
A 37-year-old patient presented with a self-limiting episode of moderate haemoptysis. Contrast-enhanced chest computed tomography showed a tortuous and dilated right bronchial artery arising from the descending aorta at the level of T6. Therapeutic angiography was attempted, but in the presence of spinal artery arising from the bronchial artery in question, selective embolization was contraindicated due to risk of spinal cord ischaemia. After a multidisciplinary meeting, it was decided to attempt surgery to ligate this pathological artery...
March 1, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29468828/liquid-exfoliation-of-colloidal-rhenium-disulfide-nanosheets-as-a-multifunctional-theranostic-agent-for-in-vivo-photoacoustic-ct-imaging-and-photothermal-therapy
#3
Zhao-Hua Miao, Lan-Xiang Lv, Kai Li, Pei-Ying Liu, Zhenglin Li, Huanjie Yang, Qingliang Zhao, Manli Chang, Liang Zhen, Cheng-Yan Xu
Near-infrared light-mediated theranostic agents with superior tissue penetration and minimal invasion have captivated researchers in cancer research in the past decade. Herein, a probe sonication-assisted liquid exfoliation approach for scalable and continual synthesis of colloidal rhenium disulfide nanosheets, which is further explored as theranostic agents for cancer diagnosis and therapy, is reported. Due to high-Z element of Re (Z = 75) and significant photoacoustic effect, the obtained PVP-capped ReS2 nanosheets are evaluated as bimodality contrast agents for computed tomography and photoacoustic imaging...
February 22, 2018: Small
https://www.readbyqxmd.com/read/29468135/optimal-surgical-approach-for-the-treatment-of-quervains-disease-a-surgical-anatomical-study
#4
Alexander R Poublon, Gert-Jan Kleinrensink, Anton LA Kerver, J Henk Coert, Erik T Walbeehm
AIM: To determine which of the common used incision techniques has the lowest chance of iatrogenic damage to the nerves which at risk are the superficial branch of the radial nerve (SBRN) and the Lateral Antebrachial Cutaneous Nerve (LABCN). METHODS: Twenty embalmed arms were dissected and the course of the SBRN and the LABCN in each individual arm was marked and the distance between the two branches of the SBRN at the location of the First Extensor Compartment (FEC) was measured...
February 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29467886/primary-intrapulmonary-solitary-fibrous-tumours
#5
Xia Lin, Yingming Xiang, Hongcan Shi, Fangbiao Zhang
Due to the extreme rarity of primary intrapulmonary solitary fibrous tumours (SFTs), their clinical course, imaging characteristics, diagnosis, treatment and prognosis are poorly understood. The present study therefore assessed the diagnosis and management of primary intrapulmonary SFTs and systematically reviewed previously reported cases in the literature. A total of 5 patients who underwent resection for primary intrapulmonary SFTs were enrolled in the present study and their clinical course, tumour characteristics, management and survival were assessed in this retrospective study...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29467098/retention-engagement-and-adherence-to-pre-exposure-prophylaxis-for-men-who-have-sex-with-men-and-transgender-women-in-prep-brasil-48-week-results-of-a-demonstration-study
#6
Beatriz Grinsztejn, Brenda Hoagland, Ronaldo I Moreira, Esper G Kallas, Jose V Madruga, Silvia Goulart, Iuri C Leite, Lucilene Freitas, Luana M S Martins, Thiago S Torres, Ricardo Vasconcelos, Raquel B De Boni, Peter L Anderson, Albert Liu, Paula M Luz, Valdiléa G Veloso
BACKGROUND: PrEP Brasil was a demonstration study to assess feasibility of daily oral tenofovir diphosphate disoproxil fumarate plus emtricitabine provided at no cost to men who have sex with men (MSM) and transgender women at high risk for HIV within the Brazilian public health system. We report week 48 pre-exposure prophylaxis (PrEP) retention, engagement, and adherence, trends in sexual behaviour, and incidence of HIV and sexually transmitted infections in this study cohort. METHODS: PrEP Brasil was a 48 week, open-label, demonstration study that assessed PrEP delivery at three referral centres for HIV prevention and care in Rio de Janeiro, Brazil (Fundação Oswaldo Cruz), and São Paulo, Brazil (Universidade de São Paulo and Centro de Referência e Treinamento em DST e AIDS)...
February 16, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29467092/the-effect-of-computer-assisted-reporting-on-interreader-variability-of-lumbar-spine-mri-degenerative-findings-five-readers-with-30-disc-levels
#7
Benjamin Wang, Daniel I Rosenthal, Chun Xu, Pari V Pandharipande, H Benjamin Harvey, Tarik K Alkasab, Ambrose J Huang
PURPOSE: The aim of this study was to assess differences in interreader variability among radiologists after the implementation of a computer-assisted reporting (CAR) tool for the interpretation of degenerative disc disease on lumbar spine MRI. METHODS: Thirty lumbar spine MRI examinations were selected from the radiology database. Five fellowship-trained musculoskeletal radiologists evaluated each L4-L5 disc in a blinded fashion and reported the findings using a traditional free dictation approach...
February 19, 2018: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29467056/review-integrating-a-semen-quality-control-program-and-sire-fertility-at-a-large-artificial-insemination-organization
#8
B R Harstine, M D Utt, J M DeJarnette
The technology available to assess sperm population characteristics has advanced greatly in recent years. Large artificial insemination (AI) organizations that sell bovine semen utilize many of these technologies not only for novel research purposes, but also to make decisions regarding whether to sell or discard the product. Within an AI organization, the acquisition, interpretation and utilization of semen quality data is often performed by a quality control department. In general, quality control decisions regarding semen sales are often founded on the linkages established between semen quality and field fertility...
February 22, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29466877/behavior-and-health-beliefs-as-predictors-of-hiv-testing-among-women-a-prospective-study-of-observed-hiv-testing
#9
Hao Fan, Kenneth H Fife, Dena Cox, Anthony D Cox, Gregory D Zimet
Much of the research examining predictors of HIV testing has used retrospective self-report to assess HIV testing. FINDINGS: therefore, may be subject to recall bias and to difficulties determining the direction of associations. In this prospective study, we administered surveys to women in community clinics to identify predictors of subsequent observed HIV testing, overcoming these limitations. Eighty-three percent were tested. In the adjusted multivariable model, being born in the U...
February 22, 2018: AIDS Care
https://www.readbyqxmd.com/read/29465648/associations-between-anorectal-chlamydia-and-oro-anal-sex-or-saliva-use-as-a-lubricant-for-anal-sex-a-cross-sectional-survey
#10
Vincent J Cornelisse, Christopher K Fairley, Tim R H Read, David Lee, Sandra Walker, Jane S Hocking, Marcus Y Chen, Catriona S Bradshaw, Eric P F Chow
BACKGROUND: Receptive condomless anal sex is a known risk factor for anorectal chlamydia, but it remains unclear whether oro-anal sex practices also contribute. We aimed to determine whether oro-anal sex ("rimming"), fingering or the use of saliva as anal lubricant are risk factors for anorectal chlamydia among men who have sex with men (MSM). METHODS: This cross-sectional study was conducted at Melbourne Sexual Health Centre from July 2014 to June 2015...
January 30, 2018: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/29465303/morphologic-and-morphometric-study-on-microvasculature-of-developing-mouse-kidneys
#11
Jie Zhang, Jing Cong, Jie Yang, Jesper Skovhus Thomsen, Arne Andreasen, Shi-Jie Chang, Kai-Yue Wang, Ling Gu, Xiao-Yue Zhai
A proper morphogenesis of the renal microvasculature is crucial not only for fulfilling the renal function, but also to slow down the progression of chronic kidney disease in adulthood. However, the current description of the developing microvasculature is incomplete. The present study investigated the morphogenesis and volume densities of the renal microvasculature using computer-assisted tubular tracing, immunohistochemistry for CD34, and unbiased stereology. The earliest glomerular capillaries were observed at the lower cleft of the S-shape nephrons, as simple loops connecting the afferent and efferent arterioles...
February 21, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29464733/camerra-an-analysis-tool-for-the-computation-of-conformational-dynamics-by-evaluating-residue-residue-associations
#12
Quentin R Johnson, Richard J Lindsay, Tongye Shen
A computational method which extracts the dominant motions from an ensemble of biomolecular conformations via a correlation analysis of residue-residue contacts is presented. The algorithm first renders the structural information into contact matrices, then constructs the collective modes based on the correlated dynamics of a selected set of dynamic contacts. Associated programs can bridge the results for further visualization using graphics software. The aim of this method is to provide an analysis of conformations of biopolymers from the contact viewpoint...
February 21, 2018: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29464146/virtual-surgical-planning-the-pearls-and-pitfalls
#13
Johnny I Efanov, Andrée-Anne Roy, Ke N Huang, Daniel E Borsuk
Objective: Over the past few years, virtual surgical planning (VSP) has evolved into a useful tool for the craniofacial surgeon. Virtual planning and computer-aided design and manufacturing (CAD/CAM) may assist in orthognathic, cranio-orbital, traumatic, and microsurgery of the craniofacial skeleton. Despite its increasing popularity, little emphasis has been placed on the learning curve. Methods: A retrospective analysis of consecutive virtual surgeries was done from July 2012 to October 2016 at the University of Montreal Teaching Hospitals...
January 2018: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29463721/fast-flow-based-algorithm-for-creating-density-equalizing-map-projections
#14
Michael T Gastner, Vivien Seguy, Pratyush More
Cartograms are maps that rescale geographic regions (e.g., countries, districts) such that their areas are proportional to quantitative demographic data (e.g., population size, gross domestic product). Unlike conventional bar or pie charts, cartograms can represent correctly which regions share common borders, resulting in insightful visualizations that can be the basis for further spatial statistical analysis. Computer programs can assist data scientists in preparing cartograms, but developing an algorithm that can quickly transform every coordinate on the map (including points that are not exactly on a border) while generating recognizable images has remained a challenge...
February 20, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29463464/epididymal-sperm-from-spix-s-yellow-toothed-cavies-sperm-successfully-cryopreserved-in-tris-extender-with-6-glycerol-and-20-egg-yolk
#15
Andréia M Silva, Erica C G Praxedes, Lívia B Campos, Luana G P Bezerra, Samara S J Moreira, Keilla M Maia, Ana L P Souza, Alexandre R Silva
As a non-threatened hystricognath rodent species, Spix's yellow-toothed cavies can be used as a model for the development of assisted reproductive techniques for the conservation of closely related species. The objective was to establish a functional protocol for cryopreservation of epididymal sperm from these cavies. Twelve sexually mature males, ∼2 y old and weighing ∼300 g, were euthanized. Sperm were recovered by retrograde flushing of the vas deferens and cauda epididymis with Tris extender. Thereafter, sperm were extended in Tris plus 20% egg yolk, with 3%, 6% or 9% glycerol or dimethyl sulfoxide (DMSO), placed in 0...
February 15, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29462753/paracecal-hernia-with-intestinal-ischemia-treated-with-laparoscopic-assisted-surgery
#16
Koichi Inukai, Eri Tsuji, Shuhei Uehara
INTRODUCTION: Paracecal hernia is rare, and strangulation with ischemia has been infrequently observed in the limited number of published reports on paracecal hernias. PRESENTATION OF CASE: We describe a case of an incarcerated paracecal hernia with resultant ischemic bowel that was successfully treated with laparoscopic-assisted surgery. A 54-year-old man who had not undergone any surgery previously presented to our hospital with abdominal pain and vomiting. An abdominal computed tomographic scan showed evidence of an intestinal obstruction at a paracecal site...
February 14, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29462601/novel-developments-in-endoscopic-mucosal-imaging
#17
F van der Sommen, W L Curvers, W B Nagengast
Endoscopic techniques such as High-definition and optical-chromoendoscopy have had enormous impact on endoscopy practice. Since these techniques allow assessment of most subtle morphological mucosal abnormalities, further improvements in endoscopic practice lay in increasing the detection efficacy of endoscopists. Several new developments could assist in this. First, web based training tools could improve the skills of the endoscopist for enhancing the detection and classification of lesions. Secondly, incorporation of computer aided detection will be the next step to raise endoscopic quality of the captured data...
February 17, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29461222/peculiarities-of-the-occlusion-formation-in-dental-implant-supported-artificial-teeth
#18
Z Orjonikidze, R Orjonikidze, S Arutyunov
The aim of this study was to assess and develop an effective computer technology assisted method for improved treatment of dental implant patients. Both an experimental and clinical assessments were conducted. The experimental part was performed to develop the mathematical models for calculating and analyzing the tensely deformed condition (TDC) in the system "non-removable prosthesis - dental implant - lower jaw " (PIJ). Clinical study was conducted on 76 patients with previously placed dental implant supported prostheses in the posterior parts of the lower jaw (with and without signs of bone receding around the implants) allocated into three groups...
January 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29459357/attitudes-toward-e-mental-health-services-in-a-community-sample-of-adults-online-survey
#19
Sonja March, Jamin Day, Gabrielle Ritchie, Arlen Rowe, Jeffrey Gough, Tanya Hall, Chin Yan Jackie Yuen, Caroline Leanne Donovan, Michael Ireland
BACKGROUND: Despite evidence that e-mental health services are effective, consumer preferences still appear to be in favor of face-to-face services. However, the theory of planned behavior (TPB) suggests that cognitive intentions are more proximal to behavior and thus may have a more direct influence on service use. Investigating individual characteristics that influence both preferences and intentions to use e-mental health services is important for better understanding factors that might impede or facilitate the use of these services...
February 19, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29459096/objective-structured-clinical-examination-death-certificate-station-computer-based-versus-conventional-exam-format
#20
A Biolik, S Heide, R Lessig, V Hachmann, D Stoevesandt, J Kellner, C Jäschke, S Watzke
One option for improving the quality of medical post mortem examinations is through intensified training of medical students, especially in countries where such a requirement exists regardless of the area of specialisation. For this reason, new teaching and learning methods on this topic have recently been introduced. These new approaches include e-learning modules or SkillsLab stations; one way to objectify the resultant learning outcomes is by means of the OSCE process. However, despite offering several advantages, this examination format also requires considerable resources, in particular in regards to medical examiners...
February 10, 2018: Journal of Forensic and Legal Medicine
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