1,720,992 research outputs found
Anal fistulas treatment with bulking agents: An observational study
No full textBACKGROUND: Anal fistulae represent one of the most challenging conditions to treat by proctologists. Nowadays different treatment options are available. METHODS: We analysed our initial experience with bulking agents: we treated 46 patients from January 2014 to December 2017. For our prospective study, they were operated by the same surgical colo-rectal staff in our Istitution. All the details of the procedure were discussed with patients before surgery and a written consent was obtained. All patients were examined after a week, one month, six months and one year after procedure with clinical study including digital examination, proctoscopy and anal UltraSound Scan. We also did a mini-review regarding the most important bulking agents. RESULTS: None of the patients developed continence impairment after procedure. No mortality was observed. Patients needed analgesics for pain relief, for a period of 3-7 days, were 29 of 46 (63%). A total recurrence rate of 21% and overall success rate of 65.2% at 1 year follow-up. CONCLUSIONS: Anal fistulas treatment is still controversial and recurrence is typically very frequent. Our results underlined the importance of an accurate tailored treatment of fistula patients. A unique treatment useful for all types of fistulas does not exist. Among the most recent techniques, bulking agents' injections can be considered simple and safe therapeutic options, with no continence impairment
Il nuovo servizio sanitario tra spazio fisico e digitale: profili organizzativi e prestazionali
No full textIl contributo illustra le linee direttrici della missione 6 del PNRR in materia di tutela della salute, con particolare riguardo al profilo della digitalizzazione della sanità e agli strumenti all'uopo previsti
2 L PEG plus ascorbic acid versus 4 L PEG plus simethicon for colonoscopy preparation: a randomized single-blind clinical trial.
No full textTreatment and outcomes of patients with chronic radiation proctitis. A single-center experience and review of the literature
No full textChronic radiation proctitis is a frequent complication after radiotherapy for pelvic malignancies. It is reported that 1 to 5% of patients develop chronic radiation proctitis even with recent advances in external radiotherapy. Hematochezia, mucus discharge, urgency and tenesmus are common symptoms and they can vary in severity but bleeding is often the most debilitating to the patient. Different options are reported for treatment of this condition that always should keep in differential diagnosis in patients with history of pelvic radiotherapy. Treatments range from easy, with topic administration of formalina, to expensive and requiring specialized equipment such as hyperbaric oxygen therapy. Surgery is reserved to patients with failure of conservative treatments due to the high risk of leakage and high morbidity up to 60%
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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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