Ahmed R El-Nahas

..We performed a critical analysis of the results of radical cystectomy for invasive bladder carcinoma treated at 1 center...

..Extracorporeal shockwave lithotripsy for treatment of paediatric renal stones is also safe for the kidney and the child on long-term follow-up...

..For treatment of lower pole stones of 10-20 mm, flexible ureterorenoscopy has a significantly higher stone-free rate and lower retreatment rate than shock wave lithotripsy...

..To determine factors affecting the stone-free rate and complications of percutaneous nephrolithotomy (PNL) for treatment of staghorn stones...

..It was comparable to nephrostomy-free technique in analgesic requirements and hospital stay. The nephrostomy tube provided a bridge for second look nephroscopy...

..To study long-term results of percutaneous nephrolithotomy (PNL) for treatment of staghorn stones...

..Review of the English literature showed that the Acucise technique was more widely performed, though laser had better (but not statistically significant) safety and efficacy profiles...

..To determine prognostic variables which influence late recurrence after initially successful percutaneous endopyelotomy for secondary ureteropelvic junction obstruction (UPJO)...

..To determine the predictors of the clinical outcome of residual fragments after extracorporeal shockwave lithotripsy (SWL)...

..To assess the value of noncontrast computed tomography (NCCT) as a possible predictor of renal stone disintegration by shock wave lithotripsy (SWL)...

..To study the ability of comprehensive magnetic resonance imaging (MRI) to replace multiple imaging methods in the evaluation of patients with pelvi-ureteric junction obstruction (PUJO)...

..To compare the results of percutaneous and open drainage for perinephric abscess...

..A literature review of potential risk factors and suggested techniques to avoid injuring the liver during PCNL is also presented...

..We compared the safety and efficacy of the 2 retrograde endopyelotomy techniques...

..To evaluate the role of multiphasic helical computed tomography (CT) in planning surgical treatment for pelvi-ureteric junction obstruction (PUJO)...

..To determine factors affecting patients' discomfort during the period self-retaining ureteral stents are in place...

..To present the combination of laparoscopy and nephroscopy for the treatment of stones in pelvic ectopic kidneys...

..This study was conducted to evaluate the safety and efficacy of the supracostal approach for percutaneous nephrolithotomy in pediatric patients...

..To use a matched-pair analysis design to compare the safety and efficacy of shock wave lithotripsy (SWL) and ureteroscopy (URS). Controversy still exists regarding whether SWL or URS is the best management of upper ureteral calculi...

..We determined the factors predicting unfavorable results of semirigid ureteroscopy for ureteral calculi...

..We identified risk factors predicting severe bleeding due to percutaneous nephrolithotomy...

..To determine factors affecting the success of bilateral same-session ureteroscopy (BSU) in the treatment of ureteral calculi...

..Percutaneous nephrolithotomy was preferred for large or complex renal stones, whereas ureteroscopy was used for smaller stones. The evaluation of stone-free status and regular follow-up are mandatory because of the high recurrence rate...

..Our regression model can predict the probability of the success of ESWL in such controversial groups and can define patients who would need other treatment modality...

..In this study we evaluated percutaneous access for percutaneous nephrolithotomy obtained by interventional radiologists or urologists, and compared access outcomes and complications...

..CONCLUSIONS: PCNL is a safe and effective procedure in the treatment of large stones within horseshoe kidneys...

..To present our experience with ureteroscopy for the treatment of pediatric ureteral calculi...

..To present our experience with extracorporeal shock wave lithotripsy (ESWL) in the management of upper urinary tract calculi in patients with urinary diversion...

..Early diagnosis and proper treatment represent the key to minimizing patient morbidity and avoiding serious complications...

..To evaluate the functional and morphological effects of postpercutaneous nephrolithotomy (PCNL) superselective renal angiographic embolization...

..However, regular follow-up after treatment is recommended...

..We conducted a prospective randomized study to investigate the relation between the degree of stone-induced hydronephrosis and the outcome of extracorporeal shock-wave lithotripsy (ESWL) in patients with lumbar ureter stones...

..We reviewed our recent experience with percutaneous nephrolithotomy (PNL) in obese patients to determine the safety and outcome of this procedure in such group of patients...

..To define factors affecting the success and long-term outcome of extracorporeal shock-wave lithotripsy (ESWL) monotherapy of partial staghorn calculi...

..To evaluate the various anatomic factors, using computed tomography urography (CTU), that predispose to a lower-pole kidney stone formation on one side compared with the other. Materials and..

..We performed a prospective, randomized clinical trial to evaluate the outcome of ureteral stents for solitary ureteral stones 2 cm or less in moderately or severely obstructed systems using shock wave lithotripsy...

..We compared the results of percutaneous nephrolithotomy and shock wave lithotripsy for the treatment of 1 to 2 cm renal stones in children...

..To evaluate the ability of noncontrast computed tomography (NCCT) to predict stone composition and fragility for treatment with extracorporeal shock wave lithotripsy (SWL)...

..To investigate the relation between the degree of stone-induced hydronephrosis and the outcome of shock wave lithotripsy in patients with distal ureter stones...

..Patients with a solitary kidney provide a unique opportunity to evaluate any clinically significant change in renal function...

..To evaluate the surgical feasibility of laparoscopic adrenalectomy and what laparoscopy offers for the surgeon and the patient. Patients and..

..To define the preoperative kidney and stones characteristics on noncontrast-enhanced computed tomography that affect the success of extracorporeal shockwave lithotripsy (SWL) for treatment of renal calculi in pediatric patients...

..We compared the long-term functional results following two different reflux prevention techniques in orthotopic ileal bladder substitution in a prospective controlled randomized study...

..To compare the functional results from a prospective randomized trial of two different reflux-prevention techniques for ileal bladder substitution...

..To evaluate the validity of the standard tubularized incised plate (TIP) urethroplasty technique for different kinds of hypospadia...

..To introduce new technique for covering neourethra with dorsal dartos subcutaneous tissue in Snodgrass hypospadias repair...

..To assess the clinical relevance of small, asymptomatic, noninfection residual stone fragments (≤5 mm) after percutaneous nephrolithotomy (PNL), evaluated using spiral noncontrast-enhanced computed tomography (NCCT)...

..Moreover, prostatic involvement is extremely rare. We present a case report of prostatic hydatid cyst that was treated with laparoscopic excision. We reviewed diagnosis and management of hydatid disease of the urogenital tract...

..Noncontrast CT permitted excellent depiction of the site of migrated IUD for selection of proper management. Endoscopic retrieval is feasible and safe in cases with intravesical migrated IUD...

..1% and 15.1%, respectively. DW is superior to T(2)-weighted MRI in staging of organ-confined tumours (< or =T2) and both techniques are comparable in the evaluation of higher-stage tumours...

..To present our experience with bladder cancer among a renal transplant population and to review critically the relevant literature...

..We compared 3 predictive models for survival after radical cystectomy, risk group stratification, nomogram and artificial neural networks, in terms of their accuracy, performance and level of complexity...

..The survival probability in pT N+ cases depended on pT stage and the number of involved nodes. A prospective study with anatomical mapping of retrieved nodes is necessary to define the optimal extent of lymphadenectomy with cystectomy...

..CONCLUSIONS: These findings suggest that angiogenesis and DNA ploidy are independent additional prognostic factors in patients with squamous cell carcinoma of the urinary bladder...

..They provide a versatile surgical technique suitable for urinary diversion or conversion procedures. The operation is associated with an acceptable complication rate and is followed by good functional results...

..There are no skipped lesions. Negative nodes in the endopelvic region indicate that more proximal dissection is not necessary. Bilateral endopelvic dissection is mandatory...

..To investigate possible associated pathology in the prostate removed from patients with invasive bladder cancer and determine if there is a justification for prostate-sparing cystectomy...

..To be meaningful and useful, future trials that involve additional or alternative modalities should be prospective, randomized and adequately powered...

..This article reviews the published literature and details the authors' current technique of robotic radical cystectomy and urinary diversion...

..4) Most reconstructive surgeons have abandoned the continent Kock ileal reservoir largely because of the significant complication rate associated with the intussuscepted nipple valve...