1,721,068 research outputs found
Metabolic syndrome and smoking are associated with an increased risk of nocturia in male patients with benign prostatic enlargement
No full textBackground: To evaluate the relationship between cigarette smoking, metabolic syndrome (MetS) and nocturia in patients with lower urinary tract symptoms (LUTS) and benign prostatic enlargement (BPE). Methods: From 2009 onward, a consecutive series of patients with LUTS/BPE were enrolled. Symptoms were assessed using the International Prostate Symptom Score (IPSS). Age, body mass index (BMI), smoker status, prostate volume (PV), prostate-specific antigen (PSA) levels, fasting glucose levels, triglyceride levels, and high-density lipoprotein levels were recorded. MetS was defined according to Adult Treatment Panel III criteria. Moderate/severe nocturia was defined as nocturnal micturition episodes ≥2. Results: Overall 492 patients were enrolled with median age and BMI of 68 years (IQR 61/74) and 26.5 kg/m2 (IQR: 24/29), respectively. Moderate/severe nocturia was reported in 212 (43.1%) patients. MetS was diagnosed in 147 (29.9%) patients and out of them 89 (60.5%) complained moderate/severe nocturia (p = 0.001). Overall 187 (38%) patients were current smokers and out of them 99 (52%) presented moderate/severe nocturia(p = 0.034). Patients with moderate/severe nocturia were older (p = 0.001) and with larger prostate volume (p = 0.003). On multivariate analysis, age (OR: 1.067 per year, 95% CI: 1.036-1.098; p = 0.001), PV (OR: 1.011 per ml, 95% CI: 1.003-1.019; p = 0.006), MetS (OR: 2.509, 95% CI: 1.571-4.007; p = 0.001) and smoking (OR: 1.690, 95% CI: 1.061-2.693; p = 0.027) were associated with nocturia severity. Conclusions: MetS and smoking doubled the risk of moderate/severe nocturia in patients with LUTS and BPE. Assessing smoking and metabolic status in LUTS/BPE patients is suggested
How can targeted therapy influence renal surgery for renal cell carcinoma?
No full textBetween the end of 2005 and the beginning of 2006 several new target therapies have been introduced for the treatment of renal cell carcinoma. In this review we aimed to explore and summarize the main findings about the use of systemic treatment and its effect on surgery in patients with renal cell carcinoma. We identified three different settings: neoadjuvant and adjuvant settings as well as the association of systemic therapy with surgery in the metastatic renal cell carcinoma patients. Neoadjuvant target therapy with tyrosine kinase inhibitor may facilitate the tumor resection and reduce the overall tumor diameter and its complexity. However, most of the evidences are from small phase I or II clinical trials and results are often conflicting without determining a relevant change in main parameters investigated, such as tumor complexity. In the adjuvant setting, results from pivotal trials investigating the use of tyrosine kinase inhibitor for patients with nonmetastatic RCC treated with surgery discourage this practice. Indeed, most of the evidences from single clinical trials and pooled results from meta-analysis failed to find a survival advantage with the use of adjuvant systemic treatment. To date, an improvement of clinical outcomes after systemic targeted therapies could be only found in the setting of cytoreductive nephrectomy. However, the CARMENA and SURTIME trials recently confirmed the evidences against a surgical treatment in patients with mRCC and poor prognosis. In the near future significant changes may be introduced by the use of immunotherapies
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
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
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
Video-Assisted Informed Consent in Endoscopic Urology: A Randomized Trial on Ureteroscopy
No full textPurpose: The aim of this study is to evaluate the possible benefits of using video consent in the preoperative ureteroscopy (URS) consent process.Material and Methods: Prospective randomized trials took place at two Italian tertiary-care centers from March 2022 to September 2022. Patients were randomly assigned to two groups: Group A (standard verbal/written informed consent) and Group B (informed consent supported by video). We investigated the impact of both types of informed consent on patient anxiety levels using the Spielberger State-Trait Anxiety Inventory (STAI) questionnaire both pre- and post-consent. In addition, using the Visual Analogue Scale, analysis of the effect of informed consent on postoperative pain and the number of calls for assistance during hospitalization as secondary outcomes was done. To assess the satisfaction level related to the whole process, patients were asked to rate their experience on a scale of 1-10, with 1 indicating "not satisfied" and 10 indicating "completely satisfied."Results: Overall, 166 patients were randomized 1:1 in each group. The multivariable regression model demonstrated that video-assisted informed consent significantly increased the difference between post- and pre-consent STAI with a reduced level of anxiety. The video-assisted informed consent significantly predicted the number of assistance calls during hospitalization.Conclusions: Video consent for ureteroscopies is a valid tool to improve procedure awareness and satisfaction. Video consent is able to reduce procedure-related patient anxiety and postoperative assistance calls, thus proving to be useful in obtaining better-informed consent for endourological procedures
When to perform bone scan in patients with newly diagnosed prostate cancer: external validation of a novel risk stratification tool
No full textTo externally validate the performance characteristics of the Briganti's risk stratification tool for baseline staging bone scan in patients with newly diagnosed prostate cancer (PCa). From 2009 onwards, a consecutive series of patients with PCa were enrolled. All patients were staged to evaluate the presence of bone metastasis (BM) with a conventional total-body Tc 99 m MDP scintigraphy performed regardless of baseline PCa characteristics. The area under the curve (AUC) estimates were used to test the accuracy of the Briganti's risk stratification tool that recommended staging baseline bone scan for patients with a biopsy Gleason score > 7 or with a prostate-specific antigen (PSA) > 10 ng/ml and palpable disease (cT2/T3). The new tool was compared to the European Association of Urology (EAU) guideline. A total of 313 patients were consecutively enrolled. Median age was 68 (range 49-95 years), and median PSA was 7 ng/ml (range 0.81-2,670). Twenty (6.4 %) patients presented BMs. Patients with BMs were significantly older, with higher PSA and a higher Gleason score (p = 0.001). The novel Briganti's model was significantly (p = 0.001) more accurate (AUC: 0.75; CI: 0.632-0.859) than the EAU guideline (AUC: 0.64; CI: 0.52-0.761) for the prediction of BMs. Our study validated in a group of patients with PCa the novel risk stratification tool proposed by Briganti, which presented a higher accuracy for baseline staging bone scan when compared with the EAU guideline. In our experience, this approach would further reduce (about 60 %) the use of staging baseline bone scan without compromising the ability to detect BMs in patients with PCa
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