1,721,028 research outputs found
Ureterorenoscopy with a flexible instrument.
No full textFlexible ureterorenoscopy should be routinely used at the Urological Centers that deal with urinary stones. Flexible instruments should be used for both diagnostic and therapeutic purposes, allowing a safe exploration of the whole upper urinary tract. Thanks to their flexibility and to the active and passive deflection of their distal part, these instruments allowed to successfully treat several difficult situations, such as renal caliceal calculi in the lower calices or even in some middle/upper calices or in horseshoe kidneys. The therapeutic potential of this approach is enhanced by the large availability of ancillary instrumentation, such as baskets, grasps, holmium laser fibers, etc, which is continuously growing. On the other side, a steep learning curve of the technique is usually required for the surgeon. Furthermore, the intrinsic fragility of the instrument components and a potentially lower quality, when compared to that of the rigid and semi-rigid ureteroscopes, should be considered
Low-risk for colonic injuries during supine versus prone percutaneous nephrolithotomy: which is the rationale?
No full textRetrograde transureteral approach: a safe and efficient treatment for recurrent cystine renal stones.
No full textMost patients presenting cystinuria require multiple urological procedures during their lifetime. In this kind of patients the availability of minimally invasive procedure represents an advantage of minimizing the cumulative morbidity of several repeated treatments. Herein we report our experience using ureterorenoscopy (URS) for the treatment of recurrent renal cystine stones. From 2003 to 2007, 10 patients (4 males and 6 females) with one or multiple recurrent renal cystine stones underwent URS. Overall, 21 procedures have been performed. Mean maximum diameter of stones was 11.2 mm (range 5-30 mm). Either 8-9.5 F semirigid or 7.9 F flexible ureteroscopes were used. In 6 cases, stones were removed using a basket; in 9 procedures laser lithotripsy with flexible scope was performed; in 6 cases renal calculi were pulled down in the ureter using flexible instrument and then shattered with laser introduced by semirigid instrument. Stone-free status was defined as the absence of any residual fragment. A complete stone clearance was obtained in 15 out of 21 procedures (71%). In 5 cases (24%) significant residual fragments occurred; in the remaining case (5%) URS was ineffective. In 5 out of these unsuccessful procedures, stone clearance was obtained with auxiliary treatments. The last patient has not been treated yet. No major complications occurred as a result of the procedures. URS offers excellent advantages in case of recurrent hard calculi such as cystine stones. Minimally invasive procedures allow satisfactory outcomes, improving patients' quality of life
Periorbital emphysema after laparoscopic nephrectomy: case report and literature review.
No full textA 40-year-old lady presented with marked swelling and inability to open her left eye immediately after laparoscopic nephrectomy for a left pyelonephritic kidney. A diagnosis of periorbital emphysema was made and within 7 days the emphysema spontaneously disappeared. Periorbital emphysema is a rare benign condition that may complicate a laparoscopic nephrectomy
Second-line intravesical gemcitabine in high risk superficial bladder cancer: our experience.
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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
Rosai-Dorfman Disease: Case Report of an Unusual Testicular Involvement and Review of Literature
No full textVariations 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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