1,720,995 research outputs found
Diagnosis and Management of Cardiomyopathies – A Focus on Genetics, Cardiac Magnetic Resonance and Clinical Features.
No full textResults and follow-up after implantation of four or more sirolimus-eluting stents in the same patient
No full textThe aim of this study was to assess the safety and effectiveness of > or =4 sirolimus-eluting stent (SES; Cypher, Cordis, Johnson and Johnson) implantation. The safety of implantation of > or =4 SESs in the same patient and setting has not been established. Furthermore, it has been hypothesized that sirolimus administration with the use of multiple stents may diminish the platelet inhibitory effects of clopidogrel and may trigger drug-drug interactions. We identified 96 consecutive patients (96 procedures) who underwent implantation of > or =4 SESs in 365 lesions (438 stents) during the same procedure. All patients received aspirin indefinitely and clopidogrel or ticlopidine for at least 1 year postprocedure; 57% and 47% of the patients were on calcium channel blocker and statin therapy, respectively. All stents were successfully deployed and glycoprotein IIb/IIIa inhibitors were used in 50% of the procedures. There were no in-hospital deaths, Q-wave myocardial infarction (MI), urgent bypass surgery, or repeat percutaneous coronary intervention; 18 patients (19%) suffered non-Q-wave MI (defined as CK-MB elevation >3 times the upper limit of normal). At 30-day follow-up, there was one (1%) subacute thrombosis resulting in target lesion revascularization. At mean follow-up time of 15.4 +/- 6.2 months, the frequency of target lesion revascularization, target vessel revascularization, and major adverse cardiac event rates were 12%, 16%, and 18%, respectively. No other notable clinical events that might have been attributed to the possible drug-drug interactions or discontinuation of concomitant antithrombotic, statin, or calcium channel blocker therapy were reported. Multiple (> or =4) SES implantation appears safe with no increase in major adverse cardiac events
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
Hat-Marker Orientation to Minimize Neo-Commissural Overlap With Coronaries During CoreValve Evolut TAVR
No full textN/
Insufficienza tricuspidale e indicazioni al trattamento
Full text linkTricuspid regurgitation is a frequent valvular heart disease, particularly in the elderly and in association with other left-sided heart diseases. It has an adverse prognostic impact, with progressively increasing mortality as the degree of regurgitation increases. Isolated or combined (with mitral and/or aortic) surgery remains the treatment of choice, provided operative risk is acceptable. Several transcatheter treatment techniques, currently in early clinical or preclinical study phase, could provide alternative treatment options for patients with high surgical risk
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
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