1,721,385 research outputs found
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
Long-term results of laparoscopic treatment for advanced rectal cancer.
No full textBACKGROUND:
The management of advanced rectal cancer has changed into a multidisciplinary treatment model. Only limited randomized data are available for patients with rectal cancer treated laparoscopically.
AIM:
We report a multimodal treatment of advanced rectal cancer: preoperative oncological treatment, use of endoscopic stent (for malignant obstruction), minimal invasive treatment.
METHODS:
The Authors reported a series of 45 laparoscopic rectal resections for adenocarcinoma, some of them with malignant obstruction. Long-term oncological results were reviewed.
RESULTS:
The 30-day mortality was 2.2%. Of 45 adenocarcinoma, 4 cases were obstructed. Successful stent positioning was obtained in all patients and treated with radiochemiotherapy before laparoscopic resection. The 5-year global survival rate (including stage IV) was 62.2%; for stage II was 77.9% and 53.8% for stage III.
CONCLUSION:
This study indicates that laparoscopy for advanced rectal cancer have good long-term results. In high and middle rectal malignant obstructions, we considered the use of stents to be useful
Laparoscopic treatment of mixed adenoneuroendocrine cancer of right colon: case report and review of literature
No full textAbstract
Mixed adeno-neuroendocrine cancer (MANEC) term was introduced for the first time in WHO Classification of Gastrointestinal tumors in 2010. It represents a very rare neoplasm assessing about the 0.2% of all gastrointestinal cancer. The perioperative management is very challenging because of the poor knowledge of the biology of this cancer and the relative impossibility to make a diagnosis only by the biopsy during the colonoscopy. In this paper we present the case of a 83- year- old woman affected by right colon sited neoplasm with liver metastasis, which resulted to be a MANEC. The patient underwent to laparoscopic right colectomy and wedge resection of liver metastasis. The post-operative period was uneventful, and the patient was fit to be discharged at third post-operative day. A literature review about the etiology, diagnosis and treatment of right colon sited MANEC has been carried out and only eight papers about right sited MANEC have been found
Deep pelvic endometriosis (Adamyan IV stage): multidisciplinary laparoscopic treatments.
No full textFew small studies have confirmed the feasibility of laparoscopic colorectal resection for Deep Infiltrating Endometriosis (DIE), albeit with a wide range of complications.
AIM:
The aim of this study is to evaluate retrospectively the feasibility and clinical outcome of laparoscopic segmental bowel resection for DIE.
METHODS:
We have retrospectively reviewed the data of patients undergoing laparoscopic rectosigmoidal resection for bowel endometriosis from January 2000 and June 2008. Data analysis included age, preoperative symptoms, operative procedure, operating room time, intraoperative and postoperative complication, length of stay and Quality of life.
RESULTS:
56 colorectal laparoscopic resection for DIE were performed. No conversion occurred. There were no intraoperative complication; 35 patients had a temporary ileostomy and 15 required reoperation for major complication.
CONCLUSION:
DIE should be managed in specialised centers with a multidisciplinary equipe; it represents a difficult surgery which require a high surgeon skill and it must be practiced considering both the risks and the benefits
Laparoscopic colon resection: evidence based results
No full textAbout 90-92% of patients with carcinoma of the colon are treated surgically. For other surgeons, laparoscopic surgery for the treatment of malignancies remains controversial because of concerns about the adequacy of lymphadenectomy, the extent of resection, early findings of port-site metastasis and the lack of data on long-term results. In our experience, there are no differences between the laparoscopic and laparotomic techniques, and only advantages if the laparoscopic technique is use correctly. We essentially agree with the good results of many studies published in the last ten years, but we are extremely confident that it is necessary to have a good learning curve and a high-volume cases hospital to obtain good results through a laparoscopic approach. So laparoscopic colorectal surgery should be performed only by surgeons who have completed training in this approach and who perform the procedure often enough to maintain a good level of competence
Efficacy of laparoscopic sacrocervicopexy for apical support of pelvic organ prolapse.
No full textTo evaluate the efficacy of laparoscopic sacrocervicopexy for apical support in sexually active patients with pelvic organ prolapse.
METHODS:
One-hundred thirty-five women with symptomatic prolapse of the central compartment (Pelvic Organ Prolapse Quantitative [POP-Q] stage 2) underwent laparoscopic sacrocervicopexy. The operating physicians used synthetic mesh to attach the anterior endopelvic fascia to the anterior longitudinal ligament of the sacral promontory with subtotal hysterectomy. Anterior and posterior colporrhaphy was performed when necessary. The patients returned for follow-up examinations 1 month after surgery and then over subsequent years. On follow-up a physician evaluated each patient for the recurrence of genital prolapse and for recurrent or de novo development of urinary or bowel symptoms. We define "surgical failure" as any grade of recurrent prolapse of stage II or more of the POP-Q test. Patients also gave feedback about their satisfaction with the procedure.
RESULTS:
The mean follow-up period was 33 months. The success rate was 98.4% for the central compartment, 94.2% for the anterior compartment, and 99.2% for the posterior compartment. Postoperatively, the percentage of asymptomatic patients (51.6%) increased significantly (P < .01), and we observed a statistically significant reduction (P < .05) of urinary urge incontinence, recurrent cystitis, pelvic pain, dyspareunia, and discomfort. The present study showed 70.5% of patients stated they were very satisfied with the operation and 18.8% stated high satisfaction.
CONCLUSION:
Laparoscopic sacrocervicopexy is an effective option for sexually active women with pelvic organ prolaps
Laparascopic colon resection for cancer: evidence based results.
No full textAbstract
About 90-92% of patients with carcinoma of the colon are treated surgically. For other surgeons, laparoscopic surgery for the treatment of malignancies remains controversial because of concerns about the adequacy of lymphadenectomy, the extent of resection, early findings of port-site metastasis and the lack of data on long-term results. In our experience, there are no differences between the laparoscopic and laparotomic techniques, and only advantages if the laparoscopic technique is use correctly. We essentially agree with the good results of many studies published in the last ten years, but we are extremely confident that it is necessary to have a good learning curve and a high-volume cases hospital to obtain good results through a laparoscopic approach. So laparoscopic colorectal surgery should be performed only by surgeons who have completed training in this approach and who perform the procedure often enough to maintain a good level of competence
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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