1,721,085 research outputs found
Eosinophilic peritonitis (Letter)
No full textPeritoneal dialysis (PD) peritonitis is typically caused by gram-positive bacteria but may be culture negative. Culture-negative peritonitis is often caused by fastidious organisms. Infective peritonitis is a common complication of PD, with an incidence of 42 cases per 100 patient-years,(1) while eosinophilic peritonitis is a rare and poorly described non-infective entity that is often missed or confused for bacterial PD peritonitis. We herein report a case of eosinophilic peritonitis that was treated successfully.No Full Tex
Haemodialysis catheters–a review of design and function
No full textIntroduction: Hemodialysis (HD) catheters are a fundamental form of dialysis access. An appreciation of the principles of catheter design is important for practitioners involved in the insertion and maintenance of hemodialysis access. Although a wide range of styles and brands are available on the market, comparative clinical trials are lacking. Areas covered: This concise review outlines common dialysis catheter characteristics and summarizes their practical relevance. Materials and surface coatings, tip geometry, side holes, and lumen cross-sectional shape are discussed. Expert opinion: HD catheter choice should be at the operator’s discretion based on their best clinical judgment and experience. While device selection should be informed theoretic design principles, more important is a concentration on thoughtful catheter insertion and maintenance practices.No Full Tex
Respiratory failure: A rare complication of chronic kidney disease mineral and bone disorder
No full textBackground: Disordered metabolism of bone and minerals is a problem frequently encountered in patients with chronic kidney disease. Early biochemical changes include altered calcium and phosphate balance, while advanced disease produces reduced bone strength and extraskeletal calcification. The syndrome describing this constellation of findings is termed chronic kidney disease mineral and bone disorder.
Case Report: This report details a rare and extreme manifestation of chronic kidney disease mineral and bone disorder in a patient on long-term hemodialysis for end-stage renal failure. Progressive abnormalities of the thoracic skeleton were ultimately severe enough to produce restrictive lung physiology and symptomatic respiratory failure.
Conclusion: Cases of chronic kidney disease mineral and bone disorder with pronounced clinical sequelae occur uncommonly in contemporary practice because of early detection and effective therapies. To our knowledge, this report is the first case in the literature of severe thoracic involvement manifesting as respiratory failure.Full Tex
Urgent-start peritoneal dialysis
No full textPeritoneal dialysis is an important form of kidney replacement therapy. Most patients presenting with an unplanned, urgent need for dialysis are prescribed haemodialysis, leading to peritoneal dialysis underutilisation. Urgent-start peritoneal dialysis refers to treatment that is commenced within 2 weeks of catheter placement. Urgent-start peritoneal dialysis represents an efficacious, cost-effective alternative to the conventional approach of commencing dialysis. There is a paucity of evidence to guide management, however experience with the technique is increasing. This article overviews the rationale and practical application of urgent-start peritoneal dialysis.Full Tex
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Recurrent pulseless electrical activity and cardiac arrest caused by baroreceptor failure following neck irradiation
No full textIntroduction: Baroreceptor damage and hypersensitivity can produce labile autonomic blood pressure control. Neck irradiation for malignancy is a well-known but under-recognised cause of baroreceptor failure.
Case presentation: We describe a dramatic delayed complication of neck irradiation treatment. Our patient developed recurrent unexplained hypotension and pulseless electrical activity cardiac arrest upon connection to intermittent haemodialysis, which he had previously tolerated uneventfully until exposure to radiotherapy.
Conclusion: No other cause was identified, and this case thus highlights baroreflex dysfunction as an important differential diagnosis in patients with profound hypotension.Full Tex
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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