1,721,054 research outputs found
What type of pancreatic anastomosis is safest following pancreaticoduodenectomy? An invited commentary on “Critical appraisal of the techniques of pancreatic anastomosis following pancreaticoduodenectomy: A network meta-analysis” (Int J Surg 2019;73:72–7)
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Colonic interposition after esophagectomy
No full textReconstruction after esophageal cancer esophagectomy represents a complex clinical and surgical question. Patients facing this procedure are fragile with many comorbidities and often a history of chemoradiation and previous surgery. The two main esophageal substitutes are the gastric and colonic conduit, both of which require complex surgical procedures that must be carried out with expertise and knowledge to be successful. In this chapter, we describe our experience with the use of colon interposition
ASO Author Reflections: Rethinking Tumor Regression Grade as a Prognostic Marker in Esophageal Adenocarcinoma: The Importance of Treatment Context
No full textSutureless “Slim-Mesh” Technique for the Repair of Abdominal-Wall Hernias in the Obese Population
No full textBackground and Objectives: In 2009, we designed the sutureless “Slim-Mesh” laparoscopic technique to facilitate and promote repair of ventral hernias in the obese/ superobese populations, including cases with large-giant/ massive and multiple widely-spaced hernias. We also aimed to reduce surgical time and intra-and postoperative complications. Methods: Cases were divided into Class I (body mass index [BMI] 30.0–34.9 kg/m2), II (35.0–39.9 kg/m2), III (40.0–49.9 kg/m2), and superobese (50.0–59.9 kg/m2). A ventral hernia was small-medium (1 2–9.9 cm), or large (1 10–14.9 cm)-giant (1 15–19.9 cm)/massive (1 ≥ 20 cm). Between September 2009 and May 2023, 64 obese/superobese ventral-hernia patients were enrolled prospectively (81%)-retrospectively and treated with the Slim-Mesh technique. Results: We operated on 35 males and 29 females. Mean age and BMI were 60 years old and 33 kg/m2, respectively. Class I cases numbered 48, II 13, III 2, with 1 superobese case. Small-medium, large-giant, and massive ventral hernias were found intraoperatively in 40, 21, and 3 cases, respectively. Mean surgical time for all cases was 104 minutes. Mean length of hospital stay was 2 days and mean follow-up time was 5 years. We had 1 case of chronic abdominal-wall pain and 6 late postoperative-complications: 4 (6%) hernia recurrences, and 2 trocar-site hernias. Conclusion: The sutureless “Slim-Mesh” technique implements the laparoscopic approach to repair ventral hernias in the obese/superobese populations rather than open surgery or traditional transfixation suture-based laparoscopy, including cases with large-giant/massive and multiple widelyspaced hernias. This study proves that “Slim-Mesh” is safe, straightforward, quick, easy-to-reproduce, and economical
Patient Position in Operative Endoscopy
Full text linkIt is well known by surgeons that patient positioning is fundamental to exposing the organs when performing an operation via laparoscopy, as gravity can help move the organs and facilitate the exposure of the surgical site. But is it also important for endoscopic procedures? This paper examines various types of endoscopic operations and addresses the issue of the patient’s position. The patient’s position can be changed not only by rotating the patient along the head–toe axis but also by tilting the surgical bed, as is undertaken during laparoscopic surgical procedures. In particular, it is useful to take into account the effect of gravity on lesion exposure, tumour traction during dissection, crushing by body weight, risk of sample drop, risk of damage to adjacent organs, and anatomical exposure for procedures with radiological support. The endoscopist should always keep in mind the patient’s anatomy and the position of the endoscope during operative procedures, not limited to considering only intraluminal vision
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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