1,721,011 research outputs found
Cold loops applied to bipolar resectoscope: A safe "one-step" myomectomy for treatment of submucosal myomas with intramural development
No full textTo assess the safety and efficacy of cold loop myomectomy applied to bipolar resectoscope to perform "one-step" myomectomy of submucosal myomas with intramural involvement
Abnormal placenta implantation. Integration between first‐ and third‐trimester imaging in predicting the severity of Placenta Accreta Spectrum (PAS) disorders
No full textPlacenta accreta spectrum (PAS) disorders are pathological conditions correlated to a high risk of adverse maternal surgical outcomes, especially if not diagnosed. In the last 10 years, the literature interest for prenatal diagnosis of PAS disorders has been noticeably greater. More recently, significant progression in prenatal imaging techniques permitted an increase of early identified cases and a more accurate diagnosis of these anomalies, especially in women with multiple risk factors. The aim of this chapter is to give an overhaul on prenatal diagnosis of PAS disorders throughout gestation and to report whether integration between first- and third-trimester ultrasound can predict the development and severity of these anomalies
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
HPV-Vaccines
No full textHuman papillomavirus (HPV) is closely linked with the pathogenesis of cervical cancer and many other cancers. HPV vaccines are vaccines that prevent infection from certain types of human papillomavirus. However, despite the various prevention strategies and treatments, such as HPV screening, prophylactic HPV vaccines, surgery, radiotherapy, and chemotherapy, the disease burden remains heavy worldwide. Currently, three types of prophylactic vaccines—quadrivalent HPV vaccines, bivalent HPV vaccines, and a new nonavalent HPV vaccine—are commercially available. Although these vaccines protect against 90% of HPV infections, their capacity to eliminate pre-existing infections is limited. In this Topical Collection, we aim to systematically cover the progress, current status, and future prospects of various vaccines being developed for the prevention and treatment of HPV-associated lesions and cancers
Hysteroscopic Isthmoplasty: Step-by-Step Technique
No full textStudy Objective To demonstrate our technique for surgical hysteroscopy performed with a standard-size resectoscope or miniresectoscope in 3 cases of isthmocele. Design Step-by-step demonstration of the technique using slides, pictures, and video (educative video) (Canadian Task Force classification III). Setting Isthmocele is a characteristic semidiverticular anomaly of the anterior isthmic wall of the uterus, located at the site of a previous cesarean delivery scar. The etiopathogenesis of isthmocele remains poorly understood, although several hypotheses have been proposed. Factors that may possibly play a role in niche development include a very low incision through cervical tissue, inadequate suturing technique during closure of the uterine scar, surgical interventions that increase adhesion formation, and patient-related factors that impair wound healing or increase inflammation or adhesion formation. The treatment of isthmocele focuses on relieving symptoms (i.e., postmenstrual spotting, suprapubic pelvic pain, dysmenorrhea, dyspareunia, and infertility), and, consequently, asymptomatic cases should not be treated. Various surgical approaches have been described to treat isthmocele-related symptoms, including hysteroscopy, laparoscopy, vaginal, robotic, and combined techniques. Intervention Our local Institutional Review Board approved the study protocol. The procedures were performed in operative room using a 26 Fr and 16 Fr continuous-flow resectoscope under general anesthesia. The surgical technique involves resection of the fibrotic tissue of the lower margin and then the upper margin of the pouch using a cutting loop, until the underlying muscular tissue is reached, followed by resection of the inflamed and necrotic tissue of the base of the pouch. Similar surgical maneuvers are performed on the contralateral side (right anterolateral wall) for complete ablation of the isthmic region (inverted ablation). Conclusion According to the most recent literature, hysteroscopic hystmoplasty appears to be a safe and effective treatment option in cases of isthmocele with a niche at least 2 mm deep and a residual myometrial thickness of at least 3 mm to improve postmenstrual bleeding. When residual myometrial thickness is <3 mm, the hysteroscopic approach is not recommended, mainly because of the risk of bladder injury. In these symptomatic cases, laparoscopic or vaginal repair may be considered
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
Early Endometrial Cancer. Case-control study to evaluate the efficacy and safety of the new Robotic Single-site System
Full text linkObjective: To compare surgical and cosmetic outcomes of robotic single-site (RSS) versus robotic multiport (RMP) approaches in early
stage endometrial cancer. Methods: This is a perspective case-control study, comparing perioperative and early post-operative outcomes in RSS (cases) and RMP (controls) patients with early stage endometrial cancer. Clinical data including patient's demographics and peri-operative measures
were recorded. Complications, hospital stay and post-operative pain were also considered. Cosmetic result was evaluated with Patient
and Observer Scar Assessment Scale (POSAS). Results: A total of 15 women who underwent RSS were matched with 13 controls treated by RMP. No significant differences were found in terms of age, histologic type, stage, and grading. The mean operative time was similar (p=0.431) and also blood loss (p=0.611). No intra-operative complications occurred in both groups. The POSAS scores confirmed excellent cosmetic outcome of the
RSS approach. Conclusion: Our study suggests the safety and feasibility of RSS for staging early endometrial cancer without major differences from the
RMP in terms of surgical outcomes. The POSAS revealed a significant higher evaluated cosmetic outcome in RSS patients
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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