117,334 research outputs found

    Robot-Assisted Pancreatic Surgery: Safety and Feasibility.

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    The recent advent of robotic surgery has changed the surgical perspective in operating theatres worldwide. The main innovation is that a computer-based interface, located between patient and surgeon, is able to improve his/her dexterity. The goal of robotic surgery is, therefore, to reduce intraoperative complications, overcome some limits of pure laparoscopy, and, definitively, reduce the postoperative impact of surgery on the patients. A shorter hospital stay is expected to reduce the interval between access to adjuvant therapies when dealing with oncologic diseases, leading to a potential survival increase. Nevertheless, the broad clinical application of robotics to pancreatic surgery has many peculiarities. The intrinsic difficulties of this kind of surgery, the lack of specific expertise (pancreatic surgery and robotic skills), together with the need for regional centralization are the major drawbacks. However, robotic surgery has been demonstrated to be safe and feasible in pancreaticoduodenectomy, distal pancreatectomy (with or without spleen preservation), enucleation, and atypical resections

    Safety of Laparoscopic Cholecistectomy performed by Residents

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    Introduction: Laparoscopic cholecistectomy is becoming widely performed by Italian surgical residents, but specific outcomes have been poorly investigated, as compared to those carried out by experienced surgeons. Methods: Data from 188 consecutive, unselected patients who underwent LC performed by residents between 2000 and 2006 at our institution were collected. An equal number of LC performed over the same period by experienced surgeons were randomly extracted from the database. Demographics, periopeoperative parameters and complications were matched among the two groups. Results: Age, gender, ASA score, length of stay, proportion of urgent operation and cholecystitis were all well matched in the two groups. No major complications were collected in both series. The number of IOC, rendez-vous, drainages, and minor complications were also equal. Nevertheless, the overall conversion rate and the mean difficulty score (0–20) were lower among residents (1 vs. 5%, p 0.03 and 6.65 vs. 7.32, p 0.04 respectively). On the other hand, the mean duration of surgery was significantly longer in the residents group (71 vs. 62 minutes, p 0.000). Discussion: Italian residents have fewer possibilities to gain sufficient skills at the end of their residentship, as compared to their foreign colleagues due to social, cultural, political and academic troubles. However, LC is a safe and common procedure even in the hands of Italian trainees, although patients’ selection is strictly required. In fact, tthis study found that residents performed less complex operations in more time, as compared to senior surgeons

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?

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    In this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

    Chronic hidradenitis suppurativa the inguinal, perineal and scrital regions. A case report and review of the literature.

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    Hidradenitis suppurativa is a chronic, recurrent, debilitating disease that presents with inflamed lesions in the apocrine glands of the body. The most common locations are the axillary, inguinal and anogenital areas. Hidradenitis suppurativa is caused primarily by follicular occlusion with secondary involvement of the apocrine glands. The authors report a case of 47-old-man with an 18-year history of multiple sclerosis complicated by spastic paraparesis, who presented with hidradenitis suppurativa in the inguinal, perineal, and scrotal areas which was treated by wide surgical excision. A review of the most recent literature is include

    Chronic hidradenitis suppurativa in the inguinal, perineal and scrotal regions. A case report and review of the literature

    No full text
    Abstract Hidradenitis suppurativa is a chronic, recurrent, debilitating disease that presents with inflamed lesions in the apocrine glands of the body. The most common locations are the axillary, inguinal and anogenital areas. Hidradenitis suppurativa is caused primarily by follicular occlusion with secondary involvement of the apocrine glands. The authors report a case of 47-old-man with an 18-year history of multiple sclerosis complicated by spastic paraparesis, who presented with hidradenitis suppurativa in the inguinal, perineal, and scrotal areas which was treated by wide surgical excision. A review of the most recent literature is include

    Letter from unknown writer to Jesse L. Boyce

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    Letter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
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