BACKGROUND AND OBJECTIVES Nephrolithiasis (LIT) is more prevalent in patients with autosomal dominant polycystic kidney disease (ADPKD) than in the general population. Renal ultrasonography may underdetect renal stones because of difficulties imposed by parenchymal and/or cyst wall calcifications. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS A total of 125 patients with ADPKD underwent ultra...

Medullary sponge kidney (MSK) is a kidney malformation that generally manifests with nephrocalcinosis and recurrent renal stones; other signs may be renal acidification and concentration defects, and pre-calyceal duct ectasias. MSK is generally considered a sporadic disorder, but an apparently autosomal dominant inheritance has also been observed. As MSK reveals abnormalities in both the lower ...

Calcium nephrolithiasis in children is increasing in prevalence and tends to be recurrent. Although children have a lower incidence of nephrolithiasis than adults, its etiology in children is less well understood; hence, treatments targeted for adults may not be optimal in children. To better understand metabolic abnormalities in stone-forming children, we compared chemical measurements and the...

In humans, ammonium urate (AU) nephrolithiasis is rare in the Western hemisphere and more common in Japan and developing countries. Among a variety of risk factors, insulin resistance has been associated with urate nephrolithiasis in people. Bottlenose dolphins (Tursiops truncatus) are susceptible to AU nephrolithiasis, and it is believed that some populations are more likely to develop nephrol...

An enhanced urinary excretion of citrate after administration of alkali and a diminished citrate excretion after administration of ammonium chloride were first observed by Ostberg in 1931 (1). More recently, it has been pointed out that the quantity of citrate excreted in the urine is not a direct consequence of acidification or alkalinization of the urine as believed by Ostberg, but rather is ...

Background Pediatric nephrolithiasis is a condition the prevalence of which varies geographically with multiple etiologies. The aim of this study was to determine possible concomitant anatomic and metabolic disturbances in children with nephrolithiasis and to answer the questions regarding the role of each metabolic and anatomic abnormality. Materials and Methods Between 2007 and 2015, 1,080 pa...

INTRODUCTION The pathophysiology of urolithiasis in infancy is not well known. The aim of this study was to investigate whether infants with urolithiasis have higher serum levels of vitamin D, as a possible risk factor for urolithiasis, compared to infants without urinary calculi. MATERIALS AND METHODS In this case-control study, 36 infants with urolithiasis (age range, 2.5 to 24 months) were...

OBJECTIVES To demonstrate the attendance of mineral metabolism disorders and lithogenic factors in patients' urine with osteoporotic fracture without previously known stones MATERIAL AND METHODS 67 patients with osteoporotic fractures surgically treated in trauma service are included. The area of the fracture site, fracture mechanism and the presence of osteoporosis were the factors taken int...

INTRODUCTION Urinary calculi in infants are relatively infrequent, but their incidence has increased in the recent decades. The aim of this study was to investigate the clinical presentation, metabolic risk factors, and urinary tract abnormalities in infants suffering from kidney calculus. MATERIALS AND METHODS A total of 152 infants were admitted between 2009 and 2012 with ultrasonography-pr...