1,720,959 research outputs found
Acellular dermal matrix in breast augmentation surgery: a systematic review
Full text linkBackground: The use of acellular dermal matrix (ADM) in breast reconstruction was described for the first time in 20 0 0s. Recently, ADMs have been used not only in reconstructive surgery but also in cosmetic breast surgery for both primary and revision indications. Therefore, the matrices represent an important support to recent surgical techniques for breast augmentation in treatment or prevention of complications. Conversely, ADMs can affect operative times, costs, and additional complications related to their placement. A review of the literature was carried out to evaluate the efficacy, safety, and indication for the use of these matrices in cosmetic breast surgery. Methods: A literature review was conducted including manuscripts published up to April 2023 on breast augmentation using ADM. PubMed and MEDLINE were the databases used for research. The keywords used were "Breast augmentation" and "Acellular Dermal Matrix." Non-English language articles have been excluded. Results: The initial search for "breast augmentation" yielded 7900 results, which were further reviewed for "Acellular Dermal Matrices" in breast augmentation, selecting 74 articles. Following further screening, 12 articles were included in the review. A total of 787 patients were treated with breast augmentation and ADM placement. The main indication was capsular contracture (60%). Conclusions: The current evidence from the published scientific literature, albeit limited, suggests the indication for the use of ADM in revision surgery, to support the prosthetic pocket, to minimize the risk of capsular contracture and its recurrence. (c) 2024 The Author(s). Published by Elsevier Ltd on behalf of British Association of Plastic, Reconstructive and Aesthetic Surgeons. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/
Injection Treatments for Vulvovaginal Atrophy of Menopause: A Systematic Review
No full textBackground Injection treatments have been proposed as novel treatment options for Vulvovaginal Atrophy of Menopause (VVA) also known as Genitourinary Syndrome of Menopause (GSM). However, to date data about these treatments are poor.Objective To assess all available injection treatments for VVA.Methods A systematic review was performed by searching five electronic databases for peer-reviewed studies that assessed injection treatments for VVA.Results Eight studies (7 observational and 1 randomized) with 236 women were included.Assessed injection materials were: autologous platelet-rich plasma (PRP) + hyaluronic acid (HA), not cross-linked HA plus calcium hydroxyapatite (NCLHA + CaHA), micro-fragmented adipose tissue (MFAT), hyaluronan hybrid cooperative complexes (HCC), crosslinked HA, microfat and nanofat grafting + PRP, and PRP alone.Improvement in GSM symptoms after treatment was assessed through Visual Analogic Scale (VAS) for GSM symptoms or patient satisfaction, several validated questionnaires (FSFI, VHI, FSD, SF12, ICIQ UI SF, PGI-I, FSDS-R, VSQ), symptoms severity, changes in vaginal mucosa thickness, flora, pH, and expression on vaginal mucosal biopsies of Procollagen I and III and ki67 immunofluorescence or COL1A1 and COL3A1 mRNA.Injection treatments showing significant improvement in GSM-related symptoms were: (i) HCC in terms of VAS for GSM symptoms and FSFI score; (ii) Crosslinked HA in terms of VAS for GSM symptoms, FSFI and VHI score, COL1A1 and COL3A1 mRNA expression on vaginal mucosal biopsies; (iii) NCLHA + CaHA in terms of FSFI score; (iv) PRP + HA in terms of VHI, FSD and SF12 score; (v) microfat and nanofat grafting + PRP in terms of VHI score and FSDS-R score; (vi) PRP alone in terms of VHI and VSQ scores.Conclusions All assessed injection treatments except for MFAT seem to lead to significant improvement in VVA symptoms on validated questionnaires. Further studies are necessary in the field
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
Reply to De Luca et al. Comment on “Marra et al. Metastatic Renal Cell Carcinoma to the Soft Tissue 27 Years after Radical Nephrectomy: A Case Report. Medicina 2023, 59, 150”
No full textWe appreciated the comments of De Luca and colleagues [...
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
Metastatic Renal Cell Carcinoma to the Soft Tissue 27 Years after Radical Nephrectomy: A Case Report
No full textBackground and Objectives: Approximately 20–40% of patients affected with renal cell carcinoma (RCC) develop either distant metastatic or locally recurring disease following radical nephrectomy. Soft tissue, skin, and the central nervous system are less common metastatic sites. We present the case of a patient who has received a diagnosis of RCC; it was found that she had no metastases at the time of nephrectomy but had metastases in the soft tissue and subcutaneous tissue of the scalp 27 years later. As far as we can tell, this is the longest period elapsed between primary renal tumor and subcutaneous/soft tissue metastasis; moreover, this case is the first report of a combined soft tissue/subcutaneous metastasis from RCC. Case presentation: A 73-year-old woman underwent right radical nephrectomy 27 years earlier for clear cell renal cell carcinoma (CCRCC). She presented at our unit because she noticed swelling in the left temporal region; after radiological exams, a benign lesion was suspected. The patient underwent surgical eradication, but the massive bleeding did not allow the removal of the lesion. A biopsy of the mass was performed and the histological examination was consistent with RCC metastases. Conclusions: Metastases from renal cell carcinoma to the subcutaneous and soft tissues are rare. It is essential to take into account RCC metastases in the differential diagnostic of the new starting mass of the head and neck, and the necessity for close and continuous surveillance of patients diagnosed with renal cancer even after a long disease-free period should be emphasized
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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