1,720,982 research outputs found
Rib resection using a Gigli saw under thoracoscopic guidance
No full textIntroduction: Despite the advantages and expanded indications of video-assisted thoracoscopic surgery, the open surgical approach is commonly preferred for the surgical treatment of rib lesions. Such an approach could lead to disadvantageous results such as increased postoperative pain and prolonged hospital stay. Despite all these handicaps, thoracoscopic resection of isolated rib resection has been reported in a small number of publications. Aim: To compare the clinical outcomes of patients with isolated benign rib pathologies treated with either minimally invasive or open surgery. Material and methods: The medical records of 22 patients undergoing surgery for isolated benign rib pathologies between 2013 and 2017 were reviewed. Variables statistically compared between the two groups were age, gender, symptoms, lesion size, duration of the surgery, amount of intraoperative bleeding, conversion to open surgery, volume and duration of the drainage, postoperative complications, length of hospital stay, pathological diagnosis, follow-up period, recurrence, duration of narcotic analgesic usage and pain according to visual analog scale evaluation. Results: The thoracoscopic approach was superior to conventional surgery in terms of drainage volume, time to drain removal, morbidity, hospital stay, narcotic analgesic treatment duration and postoperative pain scores. All thoracoscopic procedures were concluded successfully, and conversion to open surgery was not required. During the mean 14-month follow-up period, no recurrence was encountered in either group. Conclusions: This technique is a safe option for isolated benign lesions of the ribs. It is more effective in patient recovery in the postoperative period and in the management of surgical pain
Uniportal Thoracoscopic Approach For Pulmonary Hydatid Cyst: Preliminary Results
No full textPurpose: Pulmonary hydatid cyst is a preventable parasitary disease with high prevalence in low-medium income countries. Thoracoscopic approach is seen in the literature as small-case groups and multiple-port incisions are observed in these studies. Unlike other thoracoscopic approaches for the surgical treatment, we describe the single-port technique for the first time in our study. We attempt to compare the clinical outcomes and preliminary results of patients with pulmonary hydatid cyst treated with either minimally invasive or thoracotomy. Methods: The medical records of 66 patients undergoing surgery for pulmonary hydatid cyst disease between January 2013 and July 2017 were reviewed. The number of patients who underwent thoracotomy was 48, whereas 18 were managed by single-port video-assisted thoracoscopic surgery. Variables statistically compared between the 2 groups were age, diameter of the cystic, operation time, volume and duration of the drainage, postoperative complications, length of stay, duration of narcotic analgesic usage, and pain score. Results: Thoracoscopic approach was superior to conventional thoracotomy in terms of operation time, drainage volume, time to drain removal, hospital stay, narcotic analgesic treatment duration, and postoperative pain scores. All thoracoscopic procedures were concluded successfully, and conversion to open surgery was not required. No postoperative mortality was seen in either group. During the follow-up period, no recurrence was encountered in either group. Conclusions: Uniportal thoracoscopic approach is a safe option for the treatment of hydatid cyst disease. It can be used as an alternative to thoracotomy, depending on the size and location of the lesion
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Clinical analysis of pneumonectomy for destroyed lung: a retrospective study of 32 patients
No full textObjectiveDestroyed lung is whole lung destruction secondary to chronic or recurrent lung infections. This clinical condition can result in irreversible changes in the lung parenchyma. In this study, we aimed to evaluate patients undergoing pneumonectomy with a diagnosis of lung destruction in terms of surgical technique, post-operative morbidity and mortality, and long-term outcomes.MethodsA total of 32 patients that underwent pneumonectomy due to a destroyed lung between 2005 and 2017 were retrospectively reviewed. Age, gender, presenting symptoms, etiologies, localization of the destruction, pre-operative medical history, pre- and post-operative respiratory function tests, intraoperative complications and bleeding volume, morbidity and mortality, length of hospital stay, and long-term follow-up outcomes were reviewed for each patient.ResultsThe study included 32 patients with a mean age of 31.710.8years. All the patients presented with persistent cough, whereas sputum production was presented by 25, hemoptysis by 18, and chest pain by 11 patients. The underlying primary diseases included nonspecific bronchiectasis in 20 (62.5%), tuberculosis in 9 (28.1%), left pulmonary hypoplasia accompanied by Bochdalek hernia in 2 (6.2%), and aspiration of a foreign body lodged in the left main bronchus in 1 (3.1%) patient. Mean operative time was 220.6 +/- 40.2min and mean perioperative bleeding was 450.9 +/- 225.7ml. Post-operative complications occurred in 14.2% of the patients, most commonly including atelectasis associated with stasis of secretions and wound site infection. Mean post-operative hospital stay was 11.8 +/- 2.8days and mean follow-up period was 35.5 +/- 28.3months. A significant clinical improvement was observed in 81.2% of the patients post-operatively.Conclusions Favorable long-term outcomes were obtained in our patients through careful patient selection and appropriate pre-operative work-up and surgical technique
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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