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https://www.readbyqxmd.com/read/29341205/promotion-time-cure-rate-model-with-nonparametric-form-of-covariate-effects
#1
Tianlei Chen, Pang Du
Survival data with a cured portion are commonly seen in clinical trials. Motivated from a biological interpretation of cancer metastasis, promotion time cure model is a popular alternative to the mixture cure rate model for analyzing such data. The existing promotion cure models all assume a restrictive parametric form of covariate effects, which can be incorrectly specified especially at the exploratory stage. In this paper, we propose a nonparametric approach to modeling the covariate effects under the framework of promotion time cure model...
January 17, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29341157/minimizing-inequality-in-access-to-precision-medicine-in-breast-cancer-by-real-time-population-based-molecular-analysis-in-the-scan-b-initiative
#2
L Rydén, N Loman, C Larsson, C Hegardt, J Vallon-Christersson, M Malmberg, H Lindman, A Ehinger, L H Saal, Å Borg
BACKGROUND: Selection of systemic therapy for primary breast cancer is currently based on clinical biomarkers along with stage. Novel genomic tests are continuously being introduced as more precise tools for guidance of therapy, although they are often developed for specific patient subgroups. The Sweden Cancerome Analysis Network - Breast (SCAN-B) initiative aims to include all patients with breast cancer for tumour genomic analysis, and to deliver molecular subtype and mutational data back to the treating physician...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29340885/quantifying-diastolic-function-from-e-waves-as-triangles-to-physiologic-contours-via-the-geometric-method
#3
Mikhail Golman, William Padovano, Leonid Shmuylovich, Sándor J Kovács
Conventional echocardiographic diastolic function (DF) assessment approximates transmitral flow velocity contours (Doppler E-waves) as triangles, with peak (Epeak), acceleration time (AT), and deceleration time (DT) as indexes. These metrics have limited value because they are unable to characterize the underlying physiology. The parametrized diastolic filling (PDF) formalism provides a physiologic, kinematic mechanism based characterization of DF by extracting chamber stiffness (k), relaxation (c), and load (x o ) from E-wave contours...
January 16, 2018: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29340600/development-and-impact-of-a-massive-open-online-course-mooc-for-antimicrobial-stewardship
#4
Jacqueline Sneddon, Gavin Barlow, Sally Bradley, Adrian Brink, Sujith J Chandy, Dilip Nathwani
Background: The University of Dundee and the BSAC developed a massive open online course (MOOC) to address the global need for education to support antimicrobial stewardship in low- and middle-income countries. Methods: An interactive course, Antimicrobial Stewardship: Managing Antibiotic Resistance, was developed and delivered via the FutureLearn© platform. The course ran over four 6 week periods during 2015 and 2016 supported by educators and was evaluated via data on uptake and feedback from learners on impact on clinical practice...
January 10, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29340547/quality-of-life-after-vertical-gastrectomy-evaluated-by-the-baros-questionnaire
#5
Guilherme Pedroso Vargas, Giselle Abigail Mendes, Rinaldo Danesi Pinto
BACKGROUND: The satisfactory outcome in the surgical treatment of obesity must include, in addition to weight loss, a significant change in the pre-existing comorbidities and in the quality of life of the patients. AIM: To evaluate the quality of life in the late postoperative period in patients that underwent videolaparoscopic sleeve gastrectomy. METHODS: Was applied the questionnaire "Bariatric Analysis and Reporting Outcome System" (BAROS) in patients that underwent videolaparoscopic sleeve gastrectomy...
October 2017: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/29340328/nephrin-loss-can-be-used-to-predict-remission-and-long-term-renal-outcome-in%C3%A2-patients-with-minimal-change-disease
#6
Nina A van de Lest, Malu Zandbergen, Daphne H T IJpelaar, Ron Wolterbeek, Jan A Bruijn, Ingeborg M Bajema, Marion Scharpfenecker
Introduction: Minimal change disease is a common cause of nephrotic syndrome. In general, patients with minimal change disease respond to corticosteroids and have excellent long-term renal survival. However, some patients have less favorable outcome. These patients are often thought to have progressed to focal segmental glomerulosclerosis. We previously reported that a segmental loss of podocyte markers is present before the development of focal segmental glomerulosclerosis in a rat model...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340312/ckd-screening-and-surveillance-in-australia-past-present-and-future
#7
REVIEW
Sree K Venuthurupalli, Wendy E Hoy, Helen G Healy, Anne Cameron, Robert G Fassett
Chronic kidney disease (CKD) was largely a hidden health problem until the publication of an internationally agreed approach to its identification, monitoring, and treatment. The 2002 National Kidney Foundation CKD classification and the subsequent 2006 Kidney Disease Improving Global Outcomes (KDIGO) recommendations are powerful tools for translating thinking about CKD into clinical practice. These guidelines were strongly endorsed by the international community, including Australia, and were incorporated into CKD practice guidelines...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340038/diagnostic-performance-of-68gallium-psma-11-pet-ct-to-detect-significant-prostate-cancer-and-comparison-with-18fec-pet-ct
#8
Manuela A Hoffmann, Matthias Miederer, Helmut J Wieler, Christian Ruf, Frank M Jakobs, Mathias Schreckenberger
Background: Radiolabeled prostate-specific membrane antigen (PSMA) has proven to be a highly accurate method to detect recurrence and metastases of prostate cancer, but only sparse data is available about its performance in the diagnosis of clinically significant primary prostate cancer. Methods: We compared 68Ga-PSMA-11 PET/CT in 25 patients with 18FEC PET/CT in 40 patients with suspected prostate carcinoma based on an increased PSA level.The PET/CT results were compared with the histopathologic Gleason Score (GS) of biopsies...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339842/the-clinico-radiological-outcome-of-open-reduction-and-internal-fixation-of-displaced-scaphoid-fractures-in-the-adult-age-group
#9
Amit Kumar, B P Sharma, Saurabh
Background: Scaphoid fracture is the most common among carpal bone fractures, frequently imperceptible on initial radiographs. Tendency of scaphoid fracture to undergo in non-union makes it an important challenging injury for all orthopaedic surgeons. Displaced scaphoid fracture has high non-union rate in conservative management asserting the need to explore operative treatment. Materials and method: A prospective study was conducted in our institution in thirty patients in 20 to 50 year age group, for displaced scaphoid fracture (<30 days duration)...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29339580/advantages-of-soft-subdural-implants-for-the-delivery-of-electrochemical-neuromodulation-therapies-to-the-spinal-cord
#10
Marco Capogrosso, Jérôme Gandar, Nathan Greiner, Eduardo Martin Moraud, Nikolaus Wenger, Polina Shkorbatova, Pavel E Мusienko, Ivan Minev, Stephanie P Lacour, Gregoire Courtine
We recently developed soft neural interfaces enabling the delivery of electrical and chemical stimulation to the spinal cord. These stimulations restored locomotion in animal models of paralysis. Soft interfaces can be placed either below or above the dura mater. Theoretically, the subdural location combines many advantages, including increased selectivity of electrical stimulation, lower stimulation thresholds, and targeted chemical stimulation through local drug delivery. However, these advantages have not been documented, nor have their functional impact been studied in-silico or in a relevant animal model of neurological disorders using a multimodal neural interface...
January 17, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29339058/carboxylic-group-riched-graphene-oxide-based-disposable-electrochemical-immunosensor-for-cancer-biomarker-detection
#11
Sajid Rauf, Geetesh K Mishra, Jahanzaib Azhar, Rupesh K Mishra, K Yugender Goud, Muhammad Azhar Hayat Nawaz, Jean Louis Marty, Akhtar Hayat
In this work, we have developed for the first time a carboxylic group riched graphene oxide based disposable electrochemical immunosensor for cancer biomarker detection using methylene blue (MB). The developed immunosensor is highly sensitive for detection of biomarker Mucin1 (MUC1) in human serum samples. Development of this disposable electrochemical immunosensor was premeditated by applying specific monoclonal antibodies against MUC1. In this method, we explored highly conductive surface of carboxylic group (-COOH-) rich graphene oxide (GO) on screen-printed carbon electrodes (SPCE)...
January 12, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29338978/non-risk-adapted-surveillance-for-stage-i-testicular-cancer-critical-review-and-summary
#12
REVIEW
Phillip Martin Pierorazio, Peter Albers, Peter C Black, Torgrim Tandstad, Axel Heidenreich, Nicola Nicolai, Craig Nichols
CONTEXT: Cancer-specific survival for men with clinical stage I testicular cancer (CSITC) is uniformly excellent. Non-risk-adapted active surveillance (NRAS) is a management strategy for CSITC to minimize overtreatment and avoid possible long-term side effects of adjuvant therapy. OBJECTIVE: To review the evidence regarding oncologic outcomes for men with CSITC undergoing NRAS and discuss ongoing controversies in the management of CSITC. EVIDENCE ACQUISITION: MEDLINE/PubMed, Embase, and the Cochrane Central Register of Controlled Trials were searched from January 1, 1987 through January 1, 2017...
January 12, 2018: European Urology
https://www.readbyqxmd.com/read/29338092/delayed-initial-radioiodine-therapy-related-to-incomplete-response-in-low-to-intermediate-risk-differentiated-thyroid-cancer
#13
Hui Li, Ying-Qiang Zhang, Chen Wang, Xin Zhang, Xin Li, Yan-Song Lin
Whether the initiating time of radioiodine (RAI) therapy will affect the clinical outcome in differentiated thyroid cancer (DTC) remains controversial. The objective of this study was to evaluate the impact of RAI therapy initiating time on response to initial therapy in low- to intermediate-risk DTC METHODS: A total of 235 consecutive patients with low- to intermediate-risk DTC were retrospectively reviewed. According to the time interval between thyroidectomy and RAI therapy, patients were divided into Group 1 (interval < 3 months, n=187) and Group 2 (interval ≥ 3 months, n=48)...
January 16, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29338066/endoscopic-scoring-indices-for-evaluation-of-disease-activity-in-ulcerative-colitis
#14
REVIEW
Nadia Mohammed Vashist, Mark Samaan, Mahmoud H Mosli, Claire E Parker, John K MacDonald, Sigrid A Nelson, G Y Zou, Brian G Feagan, Reena Khanna, Vipul Jairath
BACKGROUND: Endoscopic assessment of mucosal disease activity is routinely used to determine eligibility and response to therapy in clinical trials of ulcerative colitis. The operating properties of the existing endoscopic scoring indices are unclear. OBJECTIVES: A systematic review was undertaken to evaluate the development and operating characteristics of endoscopic scoring indices for the evaluation of ulcerative colitis. SEARCH METHODS: We searched MEDLINE, Embase and CENTRAL from inception to 5 July 2016...
January 16, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29337840/targeted-temperature-management-at-33%C3%A2-c-or-36%C3%A2-c-produces-equivalent-neuroprotective-effects-in-the-middle-cerebral-artery-occlusion-rat-model-of-ischemic-stroke
#15
Jung Ho Lee, Jisoo Lim, Yong Eun Chung, Sung Phil Chung, Incheol Park, Chul Hoon Kim, Je Sung You
Targeted temperature management (TTM, 32°C to 36°C) is one of the most successful achievements in modern resuscitation medicine. It has become standard treatment for survivors of sudden cardiac arrest to minimize secondary brain damage. TTM at 36°C is just as effective as TTM at 33°C and is actually preferred because it reduces adverse TTM-associated effects. TTM also likely has direct neuroprotective effects in ischemic brains in danger of stroke. It remains unclear, however, whether higher temperature TTM is equally effective in protecting the brain from the effects of stroke...
January 15, 2018: Shock
https://www.readbyqxmd.com/read/29337531/a-branched-glycerol-based-copolymer-with-ultrahigh-p65-sirna-delivery-efficiency-for-enhanced-cancer-therapy
#16
Li Zhou, Xiaoyan Qu, Yi Guo, Min Wang, Bo Lei, Peter X Ma
The small interfering RNA (siRNA) is emerging as a potential therapeutic for the treatment of various diseases, because of the targeted gene silencing capability. The suppression of p65 expression has shown great potential in various cancer treatments. However, various substantial obstacles limit their clinical applications, including low cellular uptake, instability and cytotoxicity of delivery vehicles. We show a highly branched and biocompatible glycerol-based copolymer (HBGCs) to effectively deliver siRNA for excellent p65 gene silencing and safe lung cancer treatment in vitro and in vivo...
January 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29337042/endovascular-recanalization-for-nonmalignant-obstruction-of-the-inferior-vena-cava
#17
Young Erben, Haraldur Bjarnason, Gudrun L Oladottir, Robert D McBane, Peter Gloviczki
OBJECTIVE: The aim of this study was to evaluate outcomes of endovascular recanalization of the inferior vena cava (IVC) and iliac veins with long-standing chronic venous obstruction caused by nonmalignant disease. METHODS: Medical records for 66 patients who underwent endovascular recanalization of the IVC with or without iliac veins from January 2001 to December 2014 at our medical center were retrospectively reviewed. Primary outcomes included morbidity and mortality; secondary outcomes included primary, primary assisted, and secondary patency and resolution of symptoms...
January 11, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29336978/metastatic-burden-in-newly-diagnosed-hormone-naive-metastatic-prostate-cancer-comparing-definitions-of-chaarted-and-latitude-trial
#18
Sarah Buelens, Filip Poelaert, Bert Dhondt, Valérie Fonteyne, Pieter De Visschere, Piet Ost, Sofie Verbeke, Geert Villeirs, Kathia De Man, Sylvie Rottey, Karel Decaestecker, Nicolaas Lumen
OBJECTIVES: No uniformity exists in the definition of metastatic burden in metastatic hormone-naive prostate cancer (mHNPC) across clinical trials making their comparison challenging. We explored definition agreement and prognostic significance of bulky mHNPC according to the CHAARTED and LATITUDE trial. MATERIALS AND METHODS: Since 2014, 95 patients with newly diagnosed mHNPC were prospectively registered. For this study, they were categorized as having high-volume (HVD) vs...
January 11, 2018: Urologic Oncology
https://www.readbyqxmd.com/read/29336523/quadratus-lumborum-block-in-management-of-severe-pain-after-uterine-artery-embolization
#19
B Ben-David, Z Kaligozhin, D Viderman
BACKGROUND AND OBJECTIVES: The quadratus lumborum (QL) block has been widely used for acute postoperative pain management after numerous surgical procedures including urological, abdominal, gynaecological and orthopaedic surgical procedures. The local anaesthetic spread in this area can provide unilateral sensory block in T6-L2 dermatomes. We performed bilateral quadratus lumborum block for the management of acute pain after the uterine artery embolization (UAE). METHODS: A 43-year-old woman was admitted to the gynaecology department of Mother and Child Hospital, University Medical Center, for uterine artery embolization...
January 16, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29336386/retrospective-study-of-complete-atrioventricular-canal-defects-anesthetic-and-perioperative-challenges
#20
Aniruddha Ramesh Janai, Wilfried Bellinghausen, Edwin Turton, Carmine Bevilacqua, Waseem Zakhary, Martin Kostelka, Farhad Bakhtiary, Joerg Hambsch, Ingo Daehnert, Florian Loeffelbein, Joerg Ender
OBJECTIVE: The objective of this study was to highlight anesthetic and perioperative management and the outcomes of infants with complete atrioventricular (AV) canal defects. DESIGN: This retrospective descriptive study included children who underwent staged and primary biventricular repair for complete AV canal defects from 1999 to 2013. SETTING: A single-center study at a university affiliated heart center. PARTICIPANTS: One hundred and fifty-seven patients with a mean age at surgery of 125 ± 56...
January 2018: Annals of Cardiac Anaesthesia
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