You searched for "nephrolithiasis"

78 results found

Understanding gender differences in nephrolithiasis

Rates of nephrolithiasis are higher in males than females. The cause for this remains unclear, however animal models have demonstrated an association between sex steroid hormone levels and lithogenesis. This relationship in humans is less well established. This study from...

Radiation exposure – what is the optimal imaging modality in the follow-up of patients with urinary tract calculi?

Cumulative radiation dose is an important consideration in the nephrolithiasis patient population. Exposure to ionising radiation is known to be harmful and is associated with an increased risk of malignancy. Understanding radiation doses is necessary to make informed decisions regarding...

An update on lower pole stone management for 2015

Introduction Urolithiasis is an increasing healthcare problem, with an estimated lifetime prevalence of up to 15% [1]. The number of interventions undertaken for stone disease has increased dramatically over recent years, particularly with respect to ureteroscopy and percutaneous nephrolithotomy (PCNL)...

Testicular microlithiasis

Introduction Testicular microlithiasis (TML) was originally described in 1970 in a healthy four-year-old boy [1] and the first paper regarding microlithiasis as an entity seen on ultrasound was published in 1987 [2]. Testicular microlithiasis is seen on ultrasound as small,...

Dietary citrate substitution in urolithiasis patients

Stone formation is dependent on supersaturation of urinary salts and urinary crystal retention. Urinary promoters (protein aggregates, cell debris) and inhibitors (citrate, magnesium, urinary macromolecules such as glycosaminoglycans and proteins) are involved in the process of stone formation [1]. Hypocitraturia...

Nephrocalcinosis

Case 1 What does this x-ray of the kidney, ureter and bladder (KUB) show? What are the likely causes? What is the pathology behind medullary sponge kidneys (MSK)? What is the risk of urolithiasis with MSK? How are such patients...

All you need to know about percutaneous nephrolithotomy: supine versus prone and mini versus traditional

Introduction Since the first percutaneous nephrolithotomy (PCNL), the technique has undergone many innovations, including modifications in positioning, miniaturisation of instruments and combination with retrograde intra-renal surgery (see Table 1 for an outline of the history of the technique). Controversy has...

Increasing patient hydration through technology

Achieving optimal hydration is crucial particularly for patients with nephrolithiasis. Research suggests that intake should approach 2.5–3.5 litres per day to allow for the daily excretion of 2–3 litres of dilute urine [1]. Unfortunately, patient compliance is known to be...

Early British pioneers of urological imaging

In this series of articles I am going to show you some of the exhibits contained in the Museum of Urology, hosted on the BAUS website (www.baus.org.uk). In this article I am joined by Gavin Gordon of Newcastle University whose...

Thiazide diuretic prophylaxis for kidney stones and the risk of diabetes mellitus

Thiazide diuretics have been used to reduce calcium nephrolithiasis recurrence as it is tolerated well, inexpensive and reduces calcium excretion in urine. It has been linked with increased risk of diabetes mellitus (DM) in the presence of hypertension (ALLHAT study),...

Renal calculi: the role of imaging in pregnancy

Nephrolithiasis is the most common cause of non-obstetric abdominal pain in pregnancy. Accurate diagnosis is imperative as stone related complications can lead to pre-eclampsia, urosepsis, and premature labour [1,2]. In the general population, non-contrast cross sectional imaging is recommended by...

Tackling stones in children: is it difficult to crack on?

The incidence of stone disease in the paediatric population has been increasing worldwide, particularly for the adolescent age group (12–17 years of age). In this article the authors discussed the evolutions of percutaneous nephrolithotomy (PCNL) and ureteroscopy (URS) in children....