1,720,973 research outputs found
Role of percutaneous cholecystostomy before laparoscopic cholecystectomy in severe acute cholecystitis.
No full textIntroduction: The aim of the study was to investigate the role of percutaneous cholecystostomy before laparoscopic cholecystectomy in gangrenous and phlegmonous cholecystitis. Patients and Methods: Medical records of 100 patients submitted to cholecystectomy with a definitive diagnosis of severe acute cholecystitis were reviewed. The surgical outcomes of 40 patients submitted to cholecystostomy (PC + Cholecystectomy Group) prior to cholecystectomy were compared to those of 60 patients submitted directly to cholecystectomy (Cholecystectomy Group). Results: No differences were found in the rate of first intention laparoscopic cholecystectomy, conversion rate of laparoscopy, the duration of cholecystectomy, post-operative complications, in-hospital mortality and post-operative stay. A higher rate of pre-operative adverse events, longer time lapses since admission to cholecystectomy and longer overall post-operative stays were observed in the PC + cholecystectomy group. Significant failure of cholecystostomy in resolving the acute clinical picture was found in cases of gangrenous cholecystitis. Cholecystostomy allowed resolution of acute phase in phlegmonous cholecystitis but no benefits of pre-operative cholecystostomy were observed in these cases. Conclusion: Percutaneous pre-operative cholecystostomy appears to be of limited utility in patients with severe acute cholecystitis candidate for cholecystectomy
Predictive factors for the diagnosis of severe acute cholecystitis in an emergency setting.
No full textBackground: The aim of this study was to assess predictive factors for the diagnosis of severe acute cholecystitis. Methods: The medical records of 295 patients with pathologically confirmed acute cholecystitis were reviewed. Patients were divided, based on pathology findings, into a group with nonsevere acute cholecystitis and a group with severe acute cholecystitis. Preoperative data were compared by univariate and multivariate analyses. Therefore, diagnostic values were assessed based on the statistically significant predictive factors. The same approach was attempted for differential diagnosis between gangrenous and phlegmonous cholecystitis. Results: Among ten variables found to be significantly different at univariate analysis, four were found to be independent predictive factors of severe acute cholecystitis: fever, distension of the gallbladder, wall edema, and preoperative adverse events. Common bile duct stones were confirmed as a protective factor. Leukocyte count, cardiovascular diseases, age, gender, and diabetes were not found to be significant predictive factors of severe acute cholecystitis. No differences were found in any of the preoperative data by comparing phlegmonous and gangrenous cholecystitis. Conclusion: Severe acute cholecystitis may be differentiated preoperatively from nonsevere acute cholecystitis based on clinical and US data, and predictive diagnostic values may be estimated according to the number of observed predictive factors. No differences were found when comparing phlegmonous and gangrenous cholecystitis
The wandering spleen: case report of laparoscopic splenectomy in a pregnant woman
Full text linkWe report he case of a wandering spleen with acute splenic infarction in a pregnant woman and its minimally invasive surgical treatment, focusing on the clinical and radiological findings that could mislead or drive clinicians to the right diagnosis, or a potential disaster
Role of Epidural Analgesia within an ERAS Program after Laparoscopic Colorectal Surgery: A Review and Meta-Analysis of Randomised Controlled Studies
Full text linkIntroduction. Epidural analgesia has been a cornerstone of any ERAS program for open colorectal surgery. With the improvements in anesthetic and analgesic techniques as well as the introduction of the laparoscopy for colorectal resection, the role of epidural analgesia has been questioned. The aim of the review was to assess through a meta-analysis the impact of epidural analgesia compared to other analgesic techniques for colorectal laparoscopic surgery within an ERAS program. Methods. Literature research was performed on PubMed, Embase, and the Cochrane Library. All randomised clinical trials that reported data on hospital stay, postoperative complications, and readmissions rates within an ERAS program with and without an epidural analgesia after a colorectal laparoscopic resection were included. Results. Five randomised clinical trials were selected and a total of 168 patients submitted to epidural analgesia were compared to 163 patients treated by an alternative analgesic technique. Pooled data show a longer hospital stay in the epidural group with a mean difference of 1.07 (95% CI 0.06-2.08) without any significant differences in postoperative complications and readmissions rates. Conclusion. Epidural analgesia does not seem to offer any additional clinical benefits to patients undergoing laparoscopic colorectal surgery within an ERAS program
Day Hospital chirurgico: valutazioni cliniche ed economiche
No full textLa finalità dello studio è di rilevare la fattibilità di un DH chirurgico nell'attuale contesto sanitario, analizzarne i costi di gestione e verificare i risultati in termini di ottimizzazione delle risorse
Sonographic diagnosis of acute cholecystitis in patients with symptomatic gallstones
No full textPurpose: The aim of the retrospective study was to assess the diagnostic ultrasound (US) criteria for acute cholecystitis in patients admitted for symptomatic gallbladder stones. Methods: The medical records of 186 patients who had undergone cholecystectomy within 24 hours after an US examination were reviewed. Acute cholecystitis was defined on the basis of pathology findings. The correlation between standardized US signs and final diagnosis of acute cholecystitis was assessed with univariate and multivariate analyses. The diagnostic values of US based on the correlated signs were then calculated. Results: The prevalence of acute cholecystitis was 52.7% (95% confidence interval [CI], 42.8-64.2). Three US signs were found to be predictive of acute cholecystitis: gallbladder distension, wall edema, and pericholecystic fluid collection. When none of the US signs were registered, sonography proved to have a 72.4% (95% CI, 59.1-83.3) negative predictive value. When registering two or three signs, sonography had positive predictive values of 78% (95% CI, 56.3-92.5) and 100% (95% CI, 58.9-100), respectively. With just one sign, the positive predictive value was 57.6% (95% CI, 47.2-67.4), and such a finding was furthermore observed in only 53.2% of the cases. Conclusions: The sonografic diagnosis of acute cholecystitis may be achieved by registering only three standardized US signs. Nevertheless, in patients admitted for symptomatic gallstones, US is of some utility in less than half of those patients
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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