1,720,989 research outputs found
PROTOCOLLO ECOGRAFICO DEL PAZIENTE CON SCOMPENSO CARDIACO: RISULTATI AGGIORNATI DELLO STUDIO MULTICENTRICO SIUMB ABCDE 2018-2022
Full text linkLo scompenso cardiaco è una sindrome clinica caratterizzata da specifici segni e sintomi causati da anomalie cardiache di tipo strutturale e/o funzionale. La prevalenza dello scompenso cardiaco è di circa 1-2% nella popolazione adulta dei paesi industrializzati, aumenta fin oltre il 10% oltre i 70 anni ed è la maggiore causa di ospedalizzazione oltre che di disabilità. L’approccio ecografico al paziente con scompenso cardiaco è ad oggi pratica comune, sia per la valutazione della funzionalità cardiaca, sia per il monitoraggio dello stato di volemia che per la quantificazione del liquido interstiziale. Dal 2018 è in corso uno studio multicentrico italiano (“ABCDE”) patrocinato dalla SIUMB che ha come centro promotore il reparto di Medicina Generale e Malattie Aterotrombotiche e Degenerative dell’Università di Verona. L’ approccio ecografico proposto comprende le valutazioni di: A: ABI (Ankle Brachial Index), indice caviglia-braccio; B: linee B all’ecografia polmonare; C: CIMT (Carotid Intima Media Thickness), spessore intima-media carotideo; D: Diametro dell’aorta addominale e della vena cava inferiore; E: stima ecocardiografica della frazione di eiezione ventricolare sinistra. Questa presentazione riporta i risultati aggiornati a poco più di un anno dall’avvio dello studio riportando i dati provenienti dal centro promotore (Verona) e dai centri partecipanti. Dai primi risultati dello studio "ABCDE", la metodica ecografica nel paziente con scompenso cardiaco, intesa sia come “bedside” che come approccio ecografico integrato appare essere uno strumento essenziale di valutazione cardiovascolare globale, e di accorciamento della durata della degenza nei reparti medici
Ultrasound as first line step in anaemia diagnostics
Full text linkThis review covers the role of ultrasonography as an essential non-invasive diagnostic approach when facing patients with anaemia, a common clinical problem. Abdomen ultrasound is well recognised as a first-line examination in the setting of blood loss, both acute and chronic. Less is clear about the additional opportunities, given by ultrasound in anaemia, due to the many other possible causes. Here we provide information on the utility of ultrasound in different contexts and a practical guide for clinicians facing anaemic patients
A Five-Step Vascular Ultrasound Examination in Heart Failure: The First Two Years of the “ABCDE” G-SIUMB Multicenter Study 2018-2022
No full textThe aim of this study is the creation of a 5-step ultrasound examination to evaluate and monitor Heart Failure (HF) patients during hospitalization and follow-up. “ABCDE” is the acronym of an Italian multicentre study composed of a consecutive sample of HF patients admitted from the Emergency to the Internal Medicine/Geriatric Departments of several Italian hospitals. The “ABCDE” score includes the evaluations of A, the Ankle-brachial index (ABI), B, the B-lines, C, the Carotid intima media thickness (CIMT), D, the Diameter of the abdominal aorta and of the inferior cave vein and E, the echocardiographic assessment of the ejection fraction. This paper reports the preliminary results. Up to now, the “ABCDE” multicenter study seems an exciting opportunity to create an integrative ultrasound approach in HF. The definitive confirmation of these preliminary results and the effective usefulness of the “ABCDE” will be available in 2022, at the end of the study
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
Validity and repeatability of the LAVAL self-report questionnaire for measuring different physical activities in Italian males
No full textVariations 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
Spotlight on Cardiovascular Scoring Systems in Covid-19: Severity Correlations in Real-world Setting
Full text linkObjectives and Methods: the current understanding of the interplay between cardiovascular (CV) risk and Covid-19 is grossly inadequate. CV risk-prediction models are used to identify and treat high risk populations and to communicate risk effectively. These tools are unexplored in Covid-19. The main objective is to evaluate the association between CV scoring systems and chest X ray (CXR) examination (in terms of severity of lung involvement) in 50 Italian Covid-19 patients. Results only the Framingham Risk Score (FRS) was applicable to all patients. The Atherosclerotic Cardiovascular Disease Score (ASCVD) was applicable to half. 62% of patients were classified as high risk according to FRS and 41% according to ASCVD. Patients who died had all a higher FRS compared to survivors. They were all hypertensive. FRS≥30 patients had a 9.7 higher probability of dying compared to patients with a lower FRS. We found a strong correlation between CXR severity and FRS and ASCVD (P < 0.001). High CV risk patients had consolidations more frequently. CXR severity was significantly associated with hypertension and diabetes. 71% of hypertensive patients’ CXR and 88% of diabetic patients’ CXR had consolidations. Patients with diabetes or hypertension had 8 times greater risk of having consolidations. Conclusions: High CV risk correlates with more severe CXR pattern and death. Diabetes and hypertension are associated with more severe CXR. FRS offers more predictive utility and fits best to our cohort. These findings may have implications for clinical practice and for the identification of high-risk groups to be targeted for the vaccine precedence
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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