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Laser endopyelotomy (LEP) is considered as an option for the treatment of pelviureteric junction obstruction in adults. A comprehensive systematic search of the published literature was performed to assess the success rate and perioperative complications of LEP in the treatment of primary and secondary pelviureteric junction obstruction and to identify the factors that may have an impact on the success...
To evaluate the protective effects of melatonin (Mel) on an ethylene glycol (EG)-induced nephrolithiasis model in rats.Thirty-two Wistar albino rats were divided into 4 groups: control, EG, prevention Mel (Mel + EG + Mel), and therapeutic Mel (EG + Mel). EG (0.75%) was added to drinking water to create nephrolithiasis model. The EG group received EG and the Mel + EG + Mel group received both EG and...
To describe and discuss the feasibility and the use of apnea during retrograde intrarenal surgery (RIRS).A discussion of the current literature about the different anesthesia techniques and the use of apnea to improve RIRS by avoiding renal movements over diaphragmatic excursion was performed.To date, there are no mentions in the literature about the use of apnea as a mechanism to facilitate this...
To report the first performance of simultaneous bilateral percutaneous nephrolithotomy and flexible ureteroscopy carried out in tandem by 2 different surgeons in a patient with bilateral medium-sized renal calculi, describing step-by-step details of the surgical technique.A 46-year-old man, affected with hyperparathyroidism, was diagnosed with asymptomatic bilateral medium-sized renal stones. An abdominal...
To compare the efficacy and the safety of flexible ureterorenoscopy (f-URS) in the treatment of kidney stones according to the body mass index (BMI), which seems to be less influenced by weight compared with shock wave lithotripsy and percutaneous nephrolithotomy.We conducted a retrospective monocentric study in patients with a known BMI who underwent an f-URS for kidney stones between 2006 and 2008...
To measure the various diameters of laser fibers from various manufacturers and compare them with the advertised diameter.Fourteen different unused laser fibers from 6 leading manufacturers with advertised diameters of 200, 270, 272, 273, 365, and 400 μm were measured by light microscopy. The outer diameter (including the fiber coating, cladding, and core), cladding diameter (including the cladding...
To compare the outcomes of flexible ureterorenoscopy and lasertripsy (FURS) using digital and conventional FURS for kidney stones.From September 2007 to April 2011, 118 patients underwent FURS (by the same surgeon). The outcomes were compared between equal numbers of procedures (59 each) using a conventional flexible ureterorenoscope (C-FURS; Olympus URF-P5) and a digital flexible ureterorenoscope...
To assess the outcome of flexible ureterorenoscopy (F-URS) with the holmium laser in treating stones in the horseshoe kidney (HSK).We retrospectively reviewed the records of 17 patients with a HSK stone (17 renal units) who had undergone F-URS with the holmium laser from December 2004 to May 2009. The presenting symptoms were renal colic, urinary tract infection, or hematuria. F-URS was used in as...
To examine the significance of the carbonation rate (CR) in carbonated apatite (carbapatite [CA]) stones and its relationships with the morphologic characteristics of CA and etiology. CA stones without struvite can result from metabolic disorders or urinary tract infection, but the latter etiology is still debated. Infection stones caused by urea-splitting bacteria are made of CA admixed with struvite...
To determine the deterioration in the maximal active deflection and flow capabilities of a new-generation flexible ureteroscope (URS). We performed 50 ureterorenoscopies using the same URS: a Karl Storz 11278 AU1 Flex-X, which is capable of a 270° active deflection in the ventral and dorsal directions. Postoperatively, we evaluated the maximal active ventral and dorsal deflection, irrigation flow...
To compare the outcomes in patients who had undergone either open nephroureterectomy or conservative endoscopic surgery (ureteroscopic or percutaneous management) for upper urinary tract transitional cell carcinoma. We performed a retrospective review of the data for patients treated surgically for upper urinary tract transitional cell carcinoma from 1990 to 2004. The data included patient sex,...
To determine the value of mid-infrared spectroscopy (MIRS) of ureteral stent encrustations in predicting urinary stone composition. A retrospective study analyzed the composition of stent encrustations and urinary stones by MIRS in patients who had had a stent for ureteral obstruction between 2001 and 2003. The overall correlation was evaluated. The correlation coefficient kappa for agreement between...
Objectives. Laparoscopic partial nephrectomy (LPN) has generally been reserved for small exophytic lesions because of the limited hemostatic capabilities when excising large segments of renal parenchyma. To overcome this problem, we investigated a technique of laparoscopic reversible, regional hypoperfusion using a cable-tie to minimize blood loss and optimize exposure.Methods. Ten domestic pigs underwent...
In a retrospective analysis of hemorrhagic cystitis subsequent to allogeneic bone marrow transplantation, we focused on patients who underwent subtotal cystectomy with ileocystoplasty because stepwise use of conservative treatments had failed. Severe lasting hemorrhagic cystitis (more than 40 days) led to urinary tract obstruction and sepsis that required subtotal cystectomy in 3 of 1300 bone graft...
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