1,720,962 research outputs found

    Reconstructive surgery of the sulcus of glans penis for balanopreputial adhesion due to lichen sclerosus Our experience and medicolegal implications: Our experience and medicolegal implications

    No full text
    Aim: Our exeperience with the reconstructive surgery of the adhesion of the glans with the preputial skin due to lichen sclerosus. Material of study: Twentyeight patients (mean age, 44 years; range, 28-69) underwent reshaping of the balanopreputial sulcus at our institution. All patients presented with trapped penis resulting from adhesion at the sulcus of glans due to Lichen Sclerosus. The procedure entailed separating the coronal adhesion along its entire length with the use of a blunttipped forceps, then reshaping the balanopreputial sulcus. Though simple, the maneuver is delicate and requires scrupulous attention to the ventral aspect to avoid damaging the urethra. The adhesion is removed circumferentially around the glans by means of electrobistoury. Results: The duration of the follow-up period was 24 months. All patients stated they were satisfied with the cosmetic results and functional outcome. Recurrence of the condition occurred in 7% of the patients and was treated medically; recurrence of adhesion occurred in 2% of the patients and was treated with repeat surgery. Discussion: The indication for medical therapy in early LS is a selective criterion restricted to less severe cases; otherwise, the physician may be held responsible for treatment failure, justified claims for reimbursement, disease progression and the decidedly greater damage that may ensue. Such consequences can be averted when assessment is based on recent scientific evidence and the approach to treatment is appropriate in terms of efficacy and effectiveness. Surgical management is definitive and restores normal penile anatomy and function, including sexual and urinary function, thus enabling the patient to regain sexual confidence. Conclusions: Lichen sclerosus et atrophicus is a rare disease, however, its management is not devoid of medicolegal considerations. The etiopathogenesis of the disease is unknown but progression to carcinoma of the penis has been reported in untreated cases. Consequently, timely diagnosis holds medicolegal relevance for averting delayed initiation of treatment. In cases of balanopreputial adhesion with disappearance of the sulcus of glans, we proceed with lysis and reshaping of the sulcus by means of a simple technique we have developed. The technique involves separating the coronal adhesion circumferentially around the glans using a blunt-tipped forceps, then reshaping the balanopreputial sulcus. Though very simple, the procedure is also delicate as the surgeon must be careful not to damage the urethra beneath the ventral surface

    Considerazioni medico legali sulla chirurgia protesica della disfunzione erettile in un caso di Malattia di La Peyronie.

    No full text
    Peyronie’s Disease is characterized by the presence of an inelastic fibrous plaque of the penile tunica albuginea affecting 3-10% of the male population. The fibrous scar causes the curvature of the erect penis, which prevents the penetration. In the stabilization phase the plaque can cause a variable degree of Erectile Dysfunction (20% -54%). In the treatment of the chronic disease, the gold standard is the surgery and in case of concomitant Erectile Dysfunction is indicated the placement of a penile prosthesis. This surgery is loaded of an increase of the variables which can affect the outcome, such as individual clinical features and functionality of the device. The case concerns a patient suffering from Erectile Dysfunction associated with Peyronie’s disease underwent surgery for implantation of hydraulic three-component penile prosthesis. After the surgery there was a malfunction of the prosthesis, which required unloading measures under sedation and a surgical revision of the scrotal pump. The latter was followed by the displacement of the prosthesis’ cylinder and by a new surgical treatment for the reintegration of the prosthesis and the repair of the right corpus cavernosum. After three months were a different positioning of the two cylinders inserted into the corpora cavernosa, with the right cranial extreme positioned 2.3 cm below the contralateral. In this case the failure of surgical treatment highlights a negligent behavior and the responsibility of the doctors by failing to examine adequately the variables, clinical and otherwise, that might affect the outcome of the intervention

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    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

    Variations on the Author

    Get PDF
    “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

    Get PDF
    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

    New surgical technique for ventral penile curvature without circumcision

    No full text
    Objectives To describe and report on our variant of penile corporoplasty, the double-breasted' corporoplasty, with penoscrotal and infrapubic access not requiring circumcision. The medicolegal aspects of treatment are also discussed. Patients and Methods Between February 1995 and October 2012, double-breasted corporoplasty was performed in 93 patients with congenital ventral penile curvature. Preoperative assessment comprised RigiScan monitoring, prostaglandin E1 injection with photographic documentation and measurement of penile angulation, administration of the International Index of Erectile Function-5 (IIEF-5) questionnaire, and biothesiometry up until 5 years ago when it was substituted with the Genito Sensory Analyser for testing sensitivity. Dorsal infrapubic access was used in the patients with ventral curvature. After preparation and incision of Colles' fascia, the penis is degloved and double-breasted corporoplasty is performed at the site established at preoperative assessment. The tunica albuginea is prepared, an incision is made, and the cavernous tissue is isolated from the albuginea to obtain two flaps that are then overlaid and sutured asymmetrically with interrupted 2-0 polyglactin 910 (Vicryl (R)) sutures. After the free edge of the albuginea is sutured with a running polyglactin 910 suture, a non-absorbable monofilament and uncoated suture made of polypropylene (Premicron (R)) suture is placed at the point of maximum traction. Results Complete correction of penile curvature was achieved in 96% of patients; recurrence occurred in 4%. No major complications were reported, nor were there neurovascular lesions or change in erectile function. Palpable subcutaneous irregularities at the site of the corporoplasty, without functional or aesthetic impairment, were reported by 35% of patients. There was no change in the appearance of the penis as circumcision was not performed and the residual scar was barely noticeable as it was hidden in the infrapubic fold. The corporoplasty technique can adequately restore the patient's psychophysical integrity, making it, from a medicolegal perspective, one of the most reliable procedures in the surgical repair of penile curvature. Conclusions This original technique is associated with low morbidity, a low recurrence rate and excellent aesthetic results. The results show that it is safe and effective. When indicated for the surgical treatment of penile curvature, the choice of the technique satisfies the criteria of diligence and prudence for the surgeon's conduct

    Dispelling the Myths Behind First-author Citation Counts

    Get PDF
    We 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

    Lichen sclerosus in patients with squamous cell carcinoma. Our experience with partial penectomy and reconstruction with ventral fenestrated flap

    No full text
    NTRODUCTION:The vast majority of penile malignant tumors are squamous cell carcinomas (SCCs). After histological diagnosis of penile carcinoma, when possible, more conservative procedures are performed, otherwise it is necessary to perform a total penectomy.MATERIAL AND METHODS:Ten patients, from 2006 to 2008, underwent to partial penectomy and reconstruction with ventral fenestrated flap technique; five of these patients had lichen sclerosus. All tumors were staged as T2N0M0, involving the corpus spongiosum and cavernosum. Patients were evaluated both the aesthetical and the sexual satisfaction, the first one by patient aesthetical self-assessment score, the second one by the International Index of Erectile Function (IIEF). Patients underwent follow-up for forty months.RESULTS:Of the ten patients, no one encountered severe complications. The average aesthetic satisfaction one month postoperatively was of 2 points, 40 months postoperatively it was of 3 points (scoring scale: 1= complete dissatisfaction, 5 = complete satisfaction). The average IIEF score in the preoperative period was 21.6 points, one month postoperatively it was 13 points, 40 months postoperatively it was 19.7 points (mild erectile dysfunction). DISCUSSION:The technique we presented, compared to other techniques, allows a reduction in operating time and is a one step technique without risk of non-engraftment. The ventral fenestrated flap technique did not result in metal stenosis in our ten patients series.CONCLUSIONS:The use of a ventral fenestrated flap in the closure of the defect due to partial penectomy has numerous advantages. Aesthetics is highly accepted by patients who are satisfied and report satisfactory sexual activity despite the reduction in penis length

    Author Index

    No full text
    Nao informado
    corecore