OBJECTIVE To perform a multivariate statistical analysis of epidemiological, clinical and biochemical factors that make it possible to identify the variables that can independently predict the course of renal lithiasis, thus defining a group at risk of worse evolution. MATERIAL AND METHODS A retrospective, descriptive and analytic study was in a cohort of 248 patients with kidney stones treat...

OBJECTIVES Schistosomiasis affecting the ureter is commonly accompanied by ureteric dilatation with or without ureteric stricture and altered ureteric wall motility that can influence extracorporeal shockwave lithotripsy (ESWL) results. This study attempts to identify variables that may influence the outcome of ESWL in the treatment of ureterolithiasis in patients with urinary bilharziasis. P...

Introduction: We present our experience with retrograde intrarenal surgery (RIRS) in patients with calculi in congenital anomalies of the upper urinary tract. Methods: A total of 29 patients with urinary stones and congenital anomalies of the kidney and ureter, including duplicated collecting system, horseshoe kidney (HSK), malrotated kidney, ureteropelvic junction stenosis (UPJ-S), and ectopic...

BACKGROUND Urinary stone incidence in pregnancy has been reported in a wide range, from 1 in 200 to 1 in 2000 cases. OBJECTIVES The aim of this study was to investigate the efficacy and safety of ureteroscopic treatment and its results and complications for pregnant women with urinary stones. PATIENTS AND METHODS From 2003 till 2011, 113 pregnant patients with symptomatic urolithiasis were ...

BACKGROUND In IRCU it is uncertain whether variation of urinary protein, especially non-albumin protein (N-Alb-P), is due to the presence of stones or reflects alteration of oxidative metabolism. AIMS To validate in a tripartite cross-sectional study of 187 ambulatory male patients, undergoing a standardized laboratory programme, whether stones impact on N-Alb-P or the state of oxidative meta...

For the detection of metabolic disorders of uric acid in upper urolithiasis, an oral purine loading test was performed in 78 patients with calcium-containing calculi, 5 patients with uric acid calculi, and 34 stone free subjects. From the results of the normal subject group, the criteria of hyperuricemia, latent hyperuricemia, hyperuricosuria and latent hyperuricosuria were proposed. In calcium...

Background Urinary stones affect one in 10 Australians. The majority of stones pass spontaneously, but some conditions, particularly ongoing pain, renal impairment and infection, mandate intervention. Objective This article explores the role of the general practitioner in the assessment and management of urinary stones. Discussion The assessment of acute stone disease should determine the loc...

BACKGROUND Studies that evaluate the effect of age on stone composition are scarce. The aim of this study was to highlight the changes in epidemiological characteristics (stone composition and location) of urolithiasis according to patients' age. METHODS We studied 1,301 urolithiasis patients with age ranging from 6 months to 92 yr (781 males and 520 females). Stone analysis was performed usi...

An 11-year-old female consulted our department with complaints of urinary incontinence and pyuria. She had had a cloacal repair 7 years ago. The radiograph showed four stones in the pelvis. Magnetic resonance imaging showed two diverticula next to the urethra and several low intensity masses in one diverticulum were regarded as stones. Voiding cystourethrography showed normal urinary bladder co...

The chemical composition of biominerals is essential for understanding biomineral formation and regarded as an attractive subject in bio-mineralogical research on human kidney stones (urinary calculi). In order to obtain more geochemically interpreted data biogenic minerals, mineralogical compositions major trace element concentrations sixty-six stone samples derived from removal surgeries were...