1,720,983 research outputs found
Prevention of anovaginal fistula during double-stapling of ileal pouch-anal anastomosis
No full textRecto- or anovaginal fistula is a troublesome complication of double-stapling technique in ultralow rectal anastomosis for rectal cancer or in ileal pouch-anal anastomosis for ulcerative colitis. In this study, a technique for preventing this problem by means of separation of the vaginal wall during the stapler firing is described using a flexible spatula introduced through the rectovaginal septum into the peritoneal cavity
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
The use of sclerotherapy with polidocanol foam in the treatment of second-degree haemorrhoidal disease – a video vignette
No full textHaemorrhoidal disease (HD) is one of the most common
anorectal conditions, with a prevalence ranging
between 4% and 36% of the population.
Depending on its severity, HD can be effectively
treated with medical and office-based procedures such
as rubber-band ligation or sclerotherapy or various
surgical approaches. Sclerotherapy has been
described for treating Grade I–III HD. The injection
of a sclerosing agent such as polidocanol provokes
an inflammatory reaction with subsequent necrosis,
fibrosis and fixation of the haemorrhoidal tissue. The
success rate of sclerotherapy varies depending on the
definition of success, the type of sclerosing agent
injected and the degree of HD
Double jejunal intussusception in an adult with chronic subileus due to a giant lipoma: a case report
No full textWe present a case of a 40-year-old male with a clinical history of intermittent intestinal occlusion, abdominal pain and moderate weight loss. Physical examination and laboratory tests were unremarkable. Diagnostic imaging including CT, MR and small-bowel barium X-rays provided evidence of a jejunal lesion of an unknown nature downstream of the ligament of Treitz. Only at surgery was it possible to identify a double intussusception due to a giant stalked polyp which the histological examination revealed to be a submucosal lipoma
Factors affecting the outcome of temporary sacral nerve stimulation for faecal incontinence. The value of the new tined lead electrode
No full textAbstract
AIM:
Sacral nerve stimulation (SNS) is an effective but expensive treatment for faecal incontinence. About 50% of the patients are unresponsive for unknown reasons, hence knowledge of any factors predictive of success would be highly desirable. The aim of this study was to analyse the potential factors associated with a successful outcome of the temporary test of electrostimulation.
METHOD:
Eighty-five patients with faecal incontinence were tested for SNS. The cause was idiopathic in 45, iatrogenic or obstetric in 28, spinal lesion or neurological diseases in nine and anal malformation in three patients; 43 were tested with a unipolar electrode and 42 with a quadripolar electrode. The severity of faecal incontinence was evaluated using the American Medical System (AMS) score and Wexner's score.
RESULTS:
A positive response was obtained in 45 patients (53%); 40 (47%) were implanted with a permanent pulse generator. Responders and nonresponders were comparable in age, duration of incontinence, anal manometry, pudendal nerve terminal motor latency and diabetes. Unipolar electrode test (PNE test) was able to elicit positive responses in 18 of 43 (42%) and the quadripolar in 27 of 42 patients (P < 0.001). Type of incontinence and gender did not affect the success rate. Patients with idiopathic incontinence had a significantly higher response rate (P =0.022). Multivariate regression analysis indicated use of a quadripolar electrode as the only independent variable predicting the success of SNS (OR = 5.58, P = 0.009). Conclusion: Use of the quadripolar electrode is the only factor significantly related to the success of SNS
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