1,720,980 research outputs found
The "phone and mail" system in a teledermatology service for chronic psychiatric patients
No full textAIM:
We aimed to test a new teledermatologic method that permits to match a high level of diagnostic accuracy, comparable with or higher to that of the "Store and Forward" method, with the highest handiness, comparable to that achievable with a video call, without suffering from the limitations of the two methods.
METHODS:
We used latest-generation cell phones with a HSDPA network broad-band internet access system for video calling and for sending via e-mail high-definition images, chosen by the specialist-at-a-distance during the video call, in times comparable to those achievable with fixed-wired access systems. We tested the diagnostic reliability, the compliance and the efficacy of the method.
RESULTS:
We found a significant concordance both between direct and via video call description of the objective signs and between direct and on high definition image description. The Spearman Rank showed a higher correlation between direct observation and high definition image observation than between direct and via video call observation: this last finding matched the experimenters' subjective experience. The compliance was positive and the efficacy comparable with the ambulatorial follow-up.
CONCLUSION:
In conclusion, the "Phone and Mail" method can be seen as being capable of joining together the necessary diagnostic precision and effectiveness with a high degree of practicality and simplicity, thanks to the ease of use of the cell phone, within the reach of everybody, to the ubiquity of its utilization, to the allowed rapidity of diagnosis, practically in real time, and to the low cost of the system
Lo sbrigliamento delle ulcere cutanee
No full textThe aim of this study is to review different methods of debridement in chronic wounds and to identify the evidence of debriding agents in wound healing. Debridement is an essential part of the tissue repair process and is defined as the removal of devitalized tissue from the wound bed. The accumulation of this tissue is regarded to prevent or delay granulation and epithelialization. Debridement techniques are divided into mechanical and non-mechanical methods on the basis of the physical peculiarities of the means employed and into selective and non-selective methods regarding the preservation or not of vital tissue from the wound bed. Advantages and disadvantages of each procedure are taken in to account to select the best form of debridement for each type of chronic wound. Surgical debridement is the most aggressive form and the more rapid compared to other techniques. It is essential to prevent infection and to remove dry thick eschars mainly in pressure ulcers. Autolytic debridement is the most easy and well tolerated from the patient and it is obtained through the use of occlusive dressings. Other forms of debridement such as the larva-therapy were used in the past and today have been reconsidered as useful and safe methods. The enzymatic and wet to dry debridements are the most common methods in our country and this is mainly due to the availability of these products. Chronic wounds are often contaminated with devitalized tissue and foreign material, which represent a barrier to cells migration and a source of infection. Selection of the debridement technique must consider the patient compliance, the wound size, the amount of exudate and the skill of the operator
Valutazione clinica e strumentale dell'attività terapeutica di un vasoprotettore contenente vitamina PP,vitamina C ed estratti fitoterapici titolati in escina,bromelina,antocianosidi nella cura delle ulcere
No full textBackground. Chronic leg ulcers due to venous insufficiency represent a significant burden for the national sanitary system. Although the role of venous hypertension as a key pathogenetic factor of this lesion is clear, several microcirculatory mechanisms involved in the tissue repair process remain to be clarified. The purpose of this study was to evaluate the efficacy and tolerability of a vasoactive drug for the treatment of varicose leg ulcers.
Methods. The study was a prospective randomized trial lasting eight weeks. Twenty patients matched for sex, age, wound dimensions and with clinical and instrumental evidence of chronic venous insufficiency were enrolled in this study. Patients attended a weekly consultation at the outpatients clinic for chronic leg ulcers of the Department of Dermatology at the University of Pisa and they were randomized into two groups according to treatment: G1 (n=10) vasoactive drug, occlusive dressing, elastic bandage, G2 (n=10) occlusive dressing, elastic bandage. During the study, subjective parameters were evaluated: intensity of pain, paresthesia, heaviness and objective parameters: intensity of oedema, wound area, transcutaneous tissue gas monitoring (O2 - CO2).
Results. At the end of the study a marked reduction of subjective symptoms such as pain and paresthesia was observed with an increase of oxygen tissue perfusion in the G1 group compared to the G2 group. No significant differences were observed in the two groups about the remaining parameters investigated.
Conclusions. The drug investigated in this study showed a good tolerability and efficacy in weakening the clinical symptoms related to venous insufficiency. The positive effect of the vasoactive drug on transcutaneous oxygen tension confirms a direct action on the microcirculatory system, which could positively modulate the tissue repair process
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
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