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https://www.readbyqxmd.com/read/28436839/automatic-subretinal-fluid-segmentation-of-retinal-sd-oct-images-with-neurosensory-retinal-detachment-guided-by-enface-fundus-imaging
#1
Menglin Wu, Qiang Chen, Xiaojun He, Ping Li, Wen Fan, Songtao Yuan, Hyunjin Park
OBJECTIVE: Accurate segmentation of neurosensory retinal detachment (NRD)-associated subretinal fluid in spectral domain optical coherence tomography (SD-OCT) is vital for the assessment of central serous chorioretinopathy (CSC). A novel two-stage segmentation algorithm was proposed, guided by Enface fundus imaging. METHODS: In the first stage, Enface fundus image was segmented using thickness map prior to detecting the fluid-associated abnormalities with diffuse boundaries...
April 18, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28436206/clinical-practice-guidelines-on-iron-therapy-a-critical-evaluation
#2
Lucia Del Vecchio, Francesco Locatelli
Anemia is common among patients with chronic kidney disease (CKD) and it is managed primarily with erythropoiesis-stimulating agents (ESA) and iron therapy. Following concerns around ESA therapy and economic constraints, IV iron is more and more administered worldwide. Several guidelines or position papers, which give indications on iron therapy in CKD patients, have been issued in Nephrology. Unfortunately, the field is characterized by a lack of evidence. As a result, the recommendations/suggestions are not uniform...
April 24, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28433444/risk-of-ocular-hypertension-in-adults-with-noninfectious-uveitis
#3
Ebenezer Daniel, Maxwell Pistilli, Srishti Kothari, Naira Khachatryan, R Oktay Kaçmaz, Sapna S Gangaputra, H Nida Sen, Eric B Suhler, Jennifer E Thorne, C Stephen Foster, Douglas A Jabs, Robert B Nussenblatt, James T Rosenbaum, Grace A Levy-Clarke, Nirali P Bhatt, John H Kempen
PURPOSE: To describe the risk and risk factors for ocular hypertension (OHT) in adults with noninfectious uveitis. DESIGN: Retrospective, multicenter, cohort study. PARTICIPANTS: Patients aged ≥18 years with noninfectious uveitis seen between 1979 and 2007 at 5 tertiary uveitis clinics. METHODS: Demographic, ocular, and treatment data were extracted from medical records of uveitis cases. MAIN OUTCOME MEASURES: Prevalent and incident OHT with intraocular pressures (IOPs) of ≥21 mmHg, ≥30 mmHg, and increase of ≥10 mmHg from documented IOP recordings (or use of treatment for OHT)...
April 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28431584/monitoring-quality-and-coverage-of-harm-reduction-services-for-people-who-use-drugs-a-consensus-study
#4
Lucas Wiessing, Marica Ferri, Vendula Běláčková, Patrizia Carrieri, Samuel R Friedman, Cinta Folch, Kate Dolan, Brian Galvin, Peter Vickerman, Jeffrey V Lazarus, Viktor Mravčík, Mirjam Kretzschmar, Vana Sypsa, Ana Sarasa-Renedo, Anneli Uusküla, Dimitrios Paraskevis, Luis Mendão, Diana Rossi, Nadine van Gelder, Luke Mitcheson, Letizia Paoli, Cristina Diaz Gomez, Maitena Milhet, Nicoleta Dascalu, Jonathan Knight, Gordon Hay, Eleni Kalamara, Roland Simon, Catherine Comiskey, Carla Rossi, Paul Griffiths
BACKGROUND AND AIMS: Despite advances in our knowledge of effective services for people who use drugs over the last decades globally, coverage remains poor in most countries, while quality is often unknown. This paper aims to discuss the historical development of successful epidemiological indicators and to present a framework for extending them with additional indicators of coverage and quality of harm reduction services, for monitoring and evaluation at international, national or subnational levels...
April 22, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28424029/baseline-executive-control-ability-and-its-relationship-to-language-therapy-improvements-in-post-stroke-aphasia-a-systematic-review
#5
Tijana Simic, Elizabeth Rochon, Elissa Greco, Rosemary Martino
PURPOSE: To review current evidence on the relationship between executive control (EC) and post-treatment language gains in adults with post-stroke aphasia. METHOD: Electronic databases (CINAHL, Cochrane Trials, Embase, MEDLINE, MEDLINE-in-Process and PsycINFO) were systematically searched (year 2000 - present). Abstracts and full-text articles were reviewed by two independent raters against pre-specified criteria: original research with N > 2; at least 90% adults with stroke, all undergoing treatment for acquired aphasia; pre-treatment EC abilities were compared to language gains post-treatment across studies...
April 19, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28410600/primary-adrenal-non-hodgkin-lymphoma-a-case-report-and-review-of-the-literature
#6
Nanik Ram, Owais Rashid, Saad Farooq, Imran Ulhaq, Najmul Islam
BACKGROUND: Lymphomas are cancers that arise from the white blood cells and have been traditionally divided into two large subtypes: Hodgkin and non-Hodgkin lymphoma. B-cell lymphoma is the most common subtype of non-Hodgkin lymphoma; almost 85% of patients with lymphoma have this variant. Lymphomas can potentially arise from any lymphoid tissue located in the body; however, primary adrenal non-Hodgkin lymphoma is extremely rare. We report the history, examination findings, and laboratory results of a 50-year-old man diagnosed with a primary left adrenal diffuse large B-cell lymphoma...
April 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28410303/personalized-therapy-tumor-antigen-discovery-for-adoptive-cellular-therapy
#7
Cassian Yee, Gregory A Lizee
Adoptive cell therapy using endogenous T cells involves the ex vivo isolation and expansion of antigen-specific T cells from the peripheral blood and is uniquely suited for validating and translating antigen discovery. Endogenous T-cell therapy does not require accessible tumor as a source of infiltrating T cells and is free of regulatory and logistical constraints associated with engineering T cells. Candidate epitope peptides identified through antigen discovery may be rapidly implemented as targets in clinical trials of endogenous T-cell therapy and even incorporated as an "ad hoc" approach to personalized treatment when autologous tumor is available...
March 2017: Cancer Journal
https://www.readbyqxmd.com/read/28409420/single-fraction-spine-stereotactic-ablative-body-radiotherapy-with-volumetric-modulated-arc-therapy
#8
Matthew M Gestaut, Nitika Thawani, Sangroh Kim, Veera R Gutti, Sameer Jhavar, Niloyjyoti Deb, Andrew Morrow, Russell A Ward, Jason H Huang, Mehul Patel
This study investigated a single institution's experience with volumetric modulated arc therapy (VMAT) directed stereotactic ablative body radiotherapy (SABR) for vertebral metastases. From 2010 to 2014, 95 lesions of spinal metastases in 73 patients were treated with SABR using VMAT. Clinical local control, pain level, and use of steroid medication were employed to evaluate treatment responses. The majority (79%) of patients were treated with a radiation dose of 20 Gy in a single fraction. However, when normal tissue constraints could not be achieved, the dose was reduced to 18 Gy (11%) or 16 Gy (8%) in 1 fraction...
April 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28406273/-we-are-part-of-a-family-benefits-and-limitations-of-community-art-groups-cags-in-thyolo-malawi-a-qualitative-study
#9
Umberto Pellecchia, Saar Baert, Spencer Nundwe, Andy Bwanali, Bote Zamadenga, Carol A Metcalf, Helen Bygrave, Sarah Daho, Liesbet Ohler, Brown Chibwandira, Kennedy Kanyimbo
INTRODUCTION: In 2012 Community ART Groups (CAGs), a community-based model of antiretroviral therapy (ART) delivery were piloted in Thyolo District, Malawi as a way to overcome patient barriers to accessing treatment, and to decrease healthcare workers' workload. CAGs are self-formed groups of patients on ART taking turns to collect ART refills for all group members from the health facility. We conducted a qualitative study to assess the benefits and challenges of CAGs from patients' and healthcare workers' (HCWs) perspectives...
March 28, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28406034/analysis-of-a-new-optimized-percutaneous-access-system-for-cipii
#10
Eric Renard
While only used initially in cases with resistance to subcutaneous insulin therapy, intraperitoneal insulin therapy provides an overall more stable glucose control than subcutaneous insulin therapy thanks to its pharmacokinetics as pointed by Garcia-Verdugo et al from the experience of implantable insulin pumps. The expansion of these devices has been limited by underdelivery issues and high cost. The availability of a new percutaneous access to intraperitoneal route could allow a similar glucose control with less constraints of follow-up and expected lower cost...
April 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28405101/the-feasibility-study-of-a-hybrid-coplanar-arc-technique-versus-hybrid-intensity-modulated-radiotherapy-in-treatment-of-early-stage-left-sided-breast-cancer-with-simultaneous-integrated-boost
#11
Yuan-Gui Chen, An-Chuan Li, Wen-Yao Li, Miao-Yun Huang, Xiao-Bo Li, Ming-Qiu Chen, Mutian Zhang, Ben-Hua Xu
This study demonstrated the feasibility and advantages of a hybrid, volumetric arc therapy technique that used two 90° coplanar arcs and two three-dimensional conformal tangential beams in the simultaneous-integrated boost radiotherapy of left-sided breast cancer after breast-conserving surgery. A total of nine patients with stage I, left-sided breast cancer who underwent breast-conserving surgery were selected for this retrospective study. For each patient, a hybrid arc plan was generated and then compared with two hybrid intensity-modulated radiotherapy plans...
January 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/28401689/progressive-resistance-training-prt-improves-rheumatoid-arthritis-outcomes-a-district-general-hospital-dgh-model
#12
Klara Morsley, Berna Berntzen, Lisa Erwood, Toby Bellerby, Lyn Williamson
OBJECTIVE: Rheumatoid cachexia is common in rheumatoid arthritis (RA) patients and develops soon after diagnosis, despite adequate drug therapy. It is associated with multiple adverse effects on body composition, function and mortality. Progressive resistance training (PRT) improves these outcomes but is not widely prescribed outside of a research setting. The aim of the present study was to explore the practicality and effectiveness of providing PRT to patients in a district general hospital within the constraints of existing resources...
April 12, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28399800/tst-positivity-in-household-contacts-of-tuberculosis-patients-a-case-contact-study-in-malawi
#13
Jonas Hector, Suzanne T Anderson, Gertrude Banda, Mercy Kamdolozi, Laura F Jefferys, Doris Shani, Natalie J Garton, Agnes Mwale, Annie Jobe, Geraint R Davies, Derek J Sloan
BACKGROUND: Screening household contacts of active tuberculosis (TB) patients is recommended for TB control. Due to resource constraints this rarely occurs in lower income countries. Demographic and clinical features of index cases may influence the likelihood of onwards TB transmission. It has also been proposed that accumulation of intracellular lipid bodies within M. tuberculosis cells may also enhance bacterial transmissibility. This study explored whether clinical and bacteriological observations recorded at baseline in TB cases in Malawi could help identify those with the highest risk of onwards transmission, to prioritise contact tracing...
April 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28399340/what-s-new-in-eyelid-tumors
#14
Nora Silverman, Roman Shinder
Eyelid malignancies represent between 5% and 10% of all skin cancers. Basal cell carcinoma is the most common, followed by squamous cell carcinoma, sebaceous cell carcinoma, Merkel cell carcinoma, and melanoma. The gold standard treatment for periocular epithelial malignancies is surgical excision. Given the constraints of the anatomy and function of the eyelids, excision with negative margins and reconstruction can be challenging. In cases of significant tissue invasion or metastasis, complete tumor removal may not be possible...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28399128/creation-of-an-immunodeficient-hla-transgenic-mouse-humamice-and-functional-validation-of-human-immunity-after-transfer-of-hla-matched-human-cells
#15
Yang Zeng, Bingrun Liu, Marie-Thérèse Rubio, Xinyue Wang, David M Ojcius, Ruoping Tang, Antoine Durrbach, Zhitao Ru, Yusen Zhou, Yu-Chun Lone
Research on human immunology has been hindered by the lack of optimal small animal models, given that the protective immune responses of human and non-human species show significant differences. However, due to ethical constraints[1] and the high cost of clinical trials, it is urgent to improve the current animal models that can mimic faithfully human physiology, particularly the human immune system (HIS). HIS mice had been generated recently by engrafting human hematopoietic stem cells (hHSCs) or human peripheral mononuclear cells (hPBMCs) into highly immuno-deficient mice such as NSG, NOG or NRG mice...
2017: PloS One
https://www.readbyqxmd.com/read/28395504/influence-of-jaw-tracking-in-intensity-modulated-and-volumetric-modulated-arc-radiotherapy-for-head-and-neck-cancers-a-dosimetric-study
#16
Karthick Raj Mani, Sagar Upadhayay, K J Maria Das
PURPOSE: To Study the dosimetric advantage of the Jaw tracking technique in intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) for Head and Neck Cancers. MATERIALS AND METHODS: We retrospectively selected 10 previously treated head and neck cancer patients stage (T1/T2, N1, M0) in this study. All the patients were planned for IMRT and VMAT with simultaneous integrated boost technique. IMRT and VMAT plans were performed with jaw tracking (JT) and with static jaw (SJ) technique by keeping the same constraints and priorities for a particular patient...
March 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/28379849/sparsity-constrained-split-feasibility-for-dose-volume-constraints-in-inverse-planning-of-intensity-modulated-photon-or-proton-therapy
#17
Scott Penfold, Rafał Zalas, Margherita Casiraghi, Mark Brooke, Yair Censor, Reinhard Schulte
A split feasibility formulation for the inverse problem of intensity-modulated radiation therapy treatment planning with dose-volume constraints included in the planning algorithm is presented. It involves a new type of sparsity constraint that enables the inclusion of a percentage-violation constraint in the model problem and its handling by continuous (as opposed to integer) methods. We propose an iterative algorithmic framework for solving such a problem by applying the feasibility-seeking CQ-algorithm of Byrne combined with the automatic relaxation method that uses cyclic projections...
April 5, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28376900/an-integrated-strategy-of-biological-and-physical-constraints-in-biological-optimization-for-cervical-carcinoma
#18
Ziwei Feng, Cheng Tao, Jian Zhu, Jinhu Chen, Gang Yu, Shaohua Qin, Yong Yin, Dengwang Li
BACKGROUND: For cervical carcinoma cases, this study aimed to evaluate the quality of intensity-modulated radiation therapy (IMRT) plans optimized by biological constraints. Furthermore, a new integrated strategy in biological planning module was proposed and verified. METHODS: Twenty patients of advanced stage cervical carcinoma were enrolled in this study. For each patient, dose volume optimization (DVO), biological model optimization (BMO) and integrated strategy optimization (ISO) plans were created using same treatment parameters...
April 4, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28371288/intensity-modulated-radiation-therapy-after-extra-pleural-pneumonectomy-for-malignant-pleural-mesothelioma-is-feasible-without-fatal-pulmonary-toxicity-and-provides-good-survival
#19
Sameer Jhavar, Jessica Pruszynski, Alan Gowan, Teresa Boyle, Niloyjyoti Deb, Mehul Patel
AIM: To analyze patterns of failure, toxicity, relapse-free survival (RFS), and overall survival (OS) in malignant pleural mesothelioma (MPM) patients treated with intensity-modulated radiation therapy following extrapleural pneumonectomy (EPP). METHODS: We reviewed 18 charts of patients with MPM from 2005 to 2014 who underwent EPP followed by hemithoracic intensity-modulated radiation therapy. Intensity-modulated radiation therapy dose delivery adhered to published lung dose constraints...
March 29, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28367748/conceptions-of-agency-and-constraint-for-hiv-positive-patients-and-healthcare-workers-to-support-long-term-engagement-with-antiretroviral-therapy-care-in-khayelitsha-south-africa
#20
Erin Stern, Christopher Colvin, Nobom Gxabagxaba, Charlotte Schutz, Rosie Burton, Graeme Meintjes
In the context of the optimism around antiretroviral therapy (ART) as prevention of HIV/AIDS, addressing the barriers to long-term ART adherence is critical. This is particularly important given the tendency to individualise or use a blame discourse when exploring why HIV-infected patients "fail" to adequately adhere to ART, and not sufficiently exploring contextual reasons for poor adherence that may require varying solutions. This study took place at three clinics and one hospital in Khayelitsha, South Africa, to document the contextual factors that challenged ART adherence in this community...
March 2017: African Journal of AIDS Research: AJAR
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