1,720,966 research outputs found
Advantages of the maneuver of intestinal derotation for pancreaticoduodenectomy
No full textBACKGROUND AND AIMS: Pancreaticoduodenectomy (PD) is the surgical treatment of choice for cephalopancreatic cancer representing the only hope of cure. Since its first description in 1935 by Allan Whipple, several modifications have been proposed. The execution of the Cattell-Braasch maneuver of intestinal derotation (ID) in the course of PD, by restoring the entire bowel to its embryological position, could represent a further and multiexpedient variant.
MATERIALS AND METHODS: We retrospectively studied 45 consecutive pancreatic cancer patients treated with Whipple-Child PD in which the Cattell-Braasch procedure of ID was performed as integrative part of the intervention. Additionally, we compared our results with the ones of conventional PD performed through open, laparoscopy, and robotic surgery. Continuous variables of ID-PD were calculated using Student's t-test whereas Mantel-Haenszel method was used for comparison with other non-ID PD techniques.
RESULTS: The average operative time was 342 min (range 250-435 min). The median estimated intraoperative blood loss was 460 ml (range 350-570 ml) (p < .0001); no intraoperative blood transfusion was required. The average number of lymph nodes harvested per specimen was 19.4 (range 17-25) (p < .0001). Morbidity and mortality rate was 28.8% and 4.4% (respectively p < .0001 and p = .1596).
CONCLUSION: Our data are in keeping with the classical PDs performed without ID. The association of the maneuver of ID with PD seems to bring some important advantages such as wider exposure of the operative field, safer dissection of anatomical structures, less intraoperative blood loss and higher number of sampled lymph nodes
Surgical treatment of hepatocellular carcinoma in elderly cirrhotic patients: personal experience
No full textBACKGROUND:
Due to the longer life expectancy of the world's population, the number of elderly cirrhotic patients undergoing surgery for hepatocellular carcinoma (HCC) is increasing. Our study evaluates the benefits of hepatic resections for HCC in cirrhotic patients aged over 65, analysing the early and long-term surgical results.
PATIENTS AND METHODS:
We retrospectively considered a series of 46 patients receiving hepatic resection for HCC. The clinicopathological data and surgical outcome of 14 (30.4%) patients aged 65 or older (group I) were evaluated and compared to the 32 (69.6%) younger than 65 (group II).
RESULTS:
No operative mortality was recorded in either group. The hospital mortality rate was 7.1% (1 out of 14) in group I and 9.4% (3 out of 32) in group II (p = 1.00). Hospital morbidity did not differ significantly in the two groups (21.4% vs 34.4%; p = 0.50). At follow-up (median 34 months, interquartile range: 12-63) 3 patients from group I (21.4%) and 16 patients from group II (50%) experienced tumor recurrence (p = 0.14). The five-year disease-free survival rate for group I and group II was 71.4% vs 28.2%, respectively (p = 0.05). The overall 5-year survival rate for group I and group II was, respectively, 77.4% vs 41.8%, (p = 0.3).
CONCLUSION:
Elderly cirrhotic patients with HCC can benefit from hepatic resection as well as younger patients; age by itself should not be considered a contraindication to surgery
Port site recurrences following laparoscopic liver resection for hepatocellular carcinoma
No full textWe commend Martin RC 2nd and colleagues on their very well-done review comparing outcomes between laparoscopic (LLR) and open liver resection (OLR) for hepatocellular carcinoma (HCC) [1]
Primary malignant melanoma of the gallbladder: an outstandingly rare tumor
No full textWe commend Giannini et al. [1] on their interesting article about two rare cases of gallbladder metastasis from malignant cutaneous melanoma. As for us, we would like to pique interest in another particular and very rare disease involving both melanoma and cholecyst, which is primary malignant melanoma of the gallbladder
Caval stenting and side-to-side portocaval shunt in the treatment of Budd-Chiari syndrome
No full text
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
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
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