1,720,991 research outputs found
La chirurgia laparoscopica nel tumore del colon-retto
No full textOver the past decade advances in laparoscopic surgery have revolutionized the surgical approach to many diseases. Although the first case series on laparoscopic segmental colectomy in patient with sigmoid cancer was described in 1991, this technique has not been readily accepted. Despite reduced morbidity and improved convalescence after laparoscopic surgery for benign disorders, surgeons have been sceptical about similar advantages of laparoscopic colectomy for cancer. Several randomized trials were initiated in the early 1990s to compare the short and long-term outcomes of patients undergoing minimally invasive and conventional open surgery for colon cancer. This review examines recent data from randomized, controlled trials and meta-analysis, that report the short and long-term outcomes after laparoscopic colectomy for cancer
Laparoscopic surgery of colon cancer : state of art and literature review
No full textOver the past decade advances in laparoscopic surgery have revolutionized the surgical approach to many diseases. Although the first case series on laparoscopic segmental colectomy in patient with sigmoid cancer was described in 1991, this technique has not been readily accepted. Despite reduced morbidity and improved convalescence after laparoscopic surgery for benign disorders, surgeons have been sceptical about similar advantages of laparoscopic colectomy for cancer. The safety of the procedure has been questioned because of early reports of port-site metastases and there has been uncertainty about whether minimally invasive surgery for colonic malignancies would achieve adequate oncologic resection. Open surgical resection of the primary tumor, until just recently; has been widely considered the most effective treatment of colon can-cer. The adherence to the principles of complete abdominal exploration, high ligation of mesenteric vessels, lymphnodal clearance and adequate bowel resection margins is essential. Several randomized trials were initiated in the early 1990s to compare the short- and long-term outcomes of patients undergoing minimally invasive and conventional open surgery for colon cancer. Today the results of this large multiinstitutional randomized trials have been reported. This review examines recent data from randomized, controlled trials and meta-analysis, that report the short- and long-term outcomes after laparoscopic colectomy for cancer. Copyrigh
Improving results of esophageal stenting: a study on 160 consecutive unselected patients
No full textEsophageal stenting is a valuable treatment in the management of malignant dysphagia. Recently, self-expanding stents have proved effective in reducing morbidity and mortality. The aim of this study was to evaluate the early and late results of esophageal stenting in a series of 160 consecutive unselected patients with unresectable esophageal and cardial carcinoma treated between November 1992 and December 1996
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
Rendez-vous over-the-scope endoclipping for tracheoesophageal fistula : case report and review of the literature
No full textBackground Management of tracheoesophageal fistula is challenging and is associated with high morbidity and mortality. Malignancy and cuff-related tracheal decubitus are the most common causes of tracheoesophageal fistula. Open surgical division and closure of the fistula orifices with or without tissue interposition has represented the standard of care for decades. Endoscopic management of tracheoesophageal fistula is still debated and only a few cases have been described in the literature. Methods A 57-year-old male patient with chronic tracheoesophageal fistula occurring 1 year after esophagectomy
for squamous-cell carcinoma was treated with a “rendez-vous” over the scope endoclipping technique using the OVESCOR system. The pertinent literature on the topic has been reviewed and compared to the present case.
Results The patient was discharged home on postoperative day 6 on a semisolid diet and remains asymptomatic at 5 month follow-up.
Conclusions The OVESCOR system seems to be safe and effective in the treatment of small tracheoesophageal
fistula
Endoscopic palliation of oesophageal cancer: results of a prospective comparison of Nd:YAG laser and ethanol injection
No full textTo evaluate the effectiveness of intratumoral alcohol injection compared with Nd:YAG laser in the treatment of unresectable fungating cancers of the oesophagus
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
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