1,720,962 research outputs found
Combined intranasal fentanyl and dexmedetomidine plus inhaled nitrous oxide sedation in children needing myringotomy and ventilation tube insertion with a specific handheld device
No full textObjectives: We report a case series of one-time 4 mcg/kg dose of intranasal dexmedetomidine and 1 mcg/kg of intranasal fentanyl plus inhaled nitrous oxide for procedural sedation in children with otitis media with effusion (OME) for tympanostomy tube placement with a specific handheld device (Solo TTD, AventaMed ®). Methods: A retrospective review was conducted in a tertiary paediatric teaching hospital on patients with OME referred from December 2018 to December 2019 in need of procedural sedation for myringotomy and ventilation tube insertion (VTI). Sixteen of twenty-four consecutively admitted subjects received a one-time dose (4 mcg/kg) of intranasal dexmedetomidine and 1mcg/Kg of intranasal fentanyl followed by inhaled nitrous oxide (iN2O) at 50% with the intended goal to achieve a Ramsay Sedation Score 4 allowing a motionless procedure with adequate analgesia. Parents’ satisfaction for the procedure was measured by mean of a Likert scale (from 0 to 5 points). Results: Sixteen patients underwent procedural sedation for myringotomy with VTI. Sedation was achieved successfully in fifteen patients (93,75%), with a mean induction time of 29 min (range 19–43) and a mean recovery time of 74 min (range 54–110). The patient who did reach an adequate sedation level underwent an intravenous line positioning and a dose of ketamine. No adverse effects were reported, and the parents’ judgment average on the Likert scale was 4,93. VTI procedure was successful in all ears. Conclusions: A combination of intranasal dexmedetomidine, fentanyl, and iN2O could be considered as a possible option for procedural sedation in children with OME undergoing procedural sedation for tympanostomy tube placement in children with Solo TTD device
Lymphangiomas of the head and neck in children
Full text linkLymphangiomas are rare benign congenital tumours, involving both the head and the neck and causing obstructing symptoms in the upper airways as well as aesthetic anomalies. In recent years, sclerosing therapy with OK-432 has become the treatment of choice in the management of these lymphatic malformations. Nonetheless, surgery still seems to be the therapy advocated for resolution of symptoms. Herein, three cases of lymphangiomas involving the head and the neck are described and a review of the English scientific literature is outlined
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
Lateral sinus thrombosis as a complication of acute mastoiditis.
No full textLateral sinus thrombosis is a rare complication of middle ear diseases: in children, it is usually related to acute otitis media, but it is also found in adults with chronic otitis. It was more frequent in the pre-antibiotic era and mortality was high. The Authors present a paediatric case of lateral sinus thrombosis in which they describe the clinical approach and related literature
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
Non-invasive assessment of hemispheric language dominance by optical topography during a brief passive listening test: A pilot study
No full textThe Wada test is usually used for pre-surgical assessment of language lateralization. Considering its invasiveness and risk of complications, alternative methods have been proposed but they are not always applicable to non-cooperative patients. In this study we explored the possibility of us- ing optical topography (OT) – a multichannel near-infrared system – for non-invasive assessment of hemispheric language dominance during passive listening.
Cortical activity was monitored in a sample of healthy, adult Italian native speakers, all right-hand- ed. We assessed changes in oxy-haemoglobin concentration in temporal, parietal and posterior frontal lobes during a passive listening of bi-syllabic words and vowel-consonant-vowel syllables last- ing less then 3 minutes. Activated channels were identified by t tests.
Left hemisphere showed significant activity only during the passive listening of bi-syllabic words. Specifically, the superior temporal gyrus, the supramarginal gyrus and the posterior inferior pari- etal lobe were activated.
During passive listening of bi-syllabic words, right handed healthy adults showed a significant acti- vation in areas already known to be involved in speech comprehension. Although more research is needed, OT proved to be a promising alternative to the Wada test for non-invasive assessment of hemispheric language lateralization, even if using a particularly brief trial, which has been de- signed for future applications with non-cooperative subjects
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