CONTEXT Low-dose computed tomography (CT) has become the first choice for detection of ureteral calculi. Conservative observational management of renal stones is possible, although the availability of minimally invasive treatment often leads to active treatment. Acute renal colic due to ureteral stone obstruction is an emergency that requires immediate pain management. Medical expulsive therapy...

PURPOSE To retrospectively assess the clinical utility in ureteroscopy (URS) planning of cumulative stone diameter (CSD), which does not account for stone width or depth, as a predictor of URS outcome and compare it with stone volume. MATERIALS AND METHODS Patients with renal stones treated at a single institute by flexible URS were retrospectively evaluated. To assess the clinical utility of...

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OBJECTIVES To assess the outcome and safety of the totally tubeless percutaneous nephrolithotomy in renal anomalies. PATIENTS AND METHODS During a prospective clinical trial from December 2002 to November 2006, 60 patients with renal anomalies and nephrolithiasis were included in our study. The anomalies consisted of the horseshoe kidney, rotational anomalies of pyelocalyceal system, and ecto...

During the last 2 decades, the role of retrograde int­ rarenal surgery (RIRS) has markedly expanded as an advanced treatment modality for urinary calculi. RIRS is now considered as a first­line treatment of renal stones sized less than 20 mm regardless of stone location, stone composition, or renal anatomy because of high success rates and low morbidities [1,2]. The stone­breaking and retrieval...

Renal stone disease is common and caused by a variety of conditions. The overall lifetime rate of renal stone in the general population is approximately 5-12%. The aim of the present study was to determine the prevalence of recurrence rate and metabolic changes present in patients with urinary lithiasis. Patients with renal stone, who attended the nephrology clinics in Ahvaz, Iran, were enrolle...

Micropercutaneous nephrolithotomy is a safe and efficient technique for appropriate sized stones. It is performed through a 4.85 Fr all-seeing needle and stones are fragmented into dust, without the need for tract dilatation, unlike other percutaneous nephrolithotomy types. Even though micropercutaneous nephrolithotomy has many advantages, increase in intrapelvic pressure during surgery may cau...

BACKGROUND To establish and internally validate an innovative R.I.R.S. scoring system that allows urologists to preoperatively estimate the stone-free rate (SFR) after retrograde intrarenal surgery (RIRS). METHODS This study included 382 eligible samples from a total 573 patients who underwent RIRS from January 2014 to December 2016. Four reproducible factors in the R.I.R.S. scoring system, i...