Between 1972 and 1984 148 children with urolithiasis were studied and managed at the University Clinic Children's Hospital of Teheran. In 125 children the calculi were in the upper and in 23 children in the lower urinary tract. The maximum incidence was between the ages of 5-8 and 12 years. 25 children had malformations and 16 had metabolic disorders. Cystinuria was observed in 6 and xanthinuria in 3 cases. The main constituents of calculi analyses in the upper urinary tract were calcium oxalate followed by ammonium acid urate. In the lower urinary tract ammonium acid urate and oxalate were seen with equal frequency, followed by uric acid. 16 children had staghorn calculi with an age profile of 5-13 years. Predominant symptoms were flank pain and gross hematuria. In 4 cases the calculi were bilateral. The calculi were removed successfully by pyelotomy and extensive pyelolithotomy. In 2 cases with more branched-out staghorn calculi and separate fragments, a logitudinal extensive nephrotomy was performed. In the absence of recurrent stones, renal growth and function were satisfactory postoperatively. In the majority of the cases the analyses of the staghorn calculi revealed phosphate.

Download full-text PDF

Source
http://dx.doi.org/10.1159/000281679DOI Listing

Publication Analysis

Top Keywords

staghorn calculi
16
urinary tract
12
calculi
8
lower urinary
8
ammonium acid
8
acid urate
8
children
5
childhood urolithiasis
4
urolithiasis iran
4
iran special
4

Similar Publications

Objective: This study aims to identify the risk factors for systemic inflammatory response syndrome (SIRS) after minimally invasive percutaneous nephrolithotomy (PCNL) with a controlled irrigation pressure and to find which patients undergoing PCNL are likely to develop SIRS under the pressure-controlled condition.

Methods: A total of 303 consecutive patients who underwent first-stage PCNL in our institute between July 2016 and June 2018 were retrospectively reviewed. All the procedures were performed with an 18 F tract using an irrigation pump setting the irrigation fluid pressure at 110 mmHg and the flow rate of irrigation at 0.

View Article and Find Full Text PDF

Management of a small renal mass and a renal stone in the same kidney presents several dilemmas. Simultaneous robot-assisted partial nephrectomy and pyelolithotomy via the same surgical access site is a reasonable approach in a patient with both entities. An 80-year-old woman was diagnosed with a 2.

View Article and Find Full Text PDF

Objective: To evaluate major bleeding risk factors in percutaneous nephrolithotomy (PCNL) for upper urinary tract calculi and validate a prediction model.

Study Design: Analytical study. Place and Duration of the Study: The First Affiliated Hospital of Wannan Medical College, Wuhu, China, from January 2019 to August 2023.

View Article and Find Full Text PDF

Staghorn calculi pose challenges in urology, often necessitating more invasive procedures such as percutaneous nephrolithotomy (PCNL) to clear a large stone burden with fewer procedures. Here we present a case of a 76-year-old female with chronic kidney disease and a malrotated right pelvic kidney who underwent PCNL for a 3.5 cm staghorn calculus.

View Article and Find Full Text PDF

Introduction: An evaluation and prognosis of complications of different treatment options in patients with staghorn stones are necessary to choose optimal surgical strategy and perioperative prophylaxis on individualized basis. Intra- and postoperative thrombotic and hemorrhagic complications are not still well-studied in modern operative urology.

Aim: To explore the influence of morpho-densitometry changes of blood platelets on perioperative thrombotic and hemorrhagic complications in patients with staghorn nephrolithiasis after percutaneous nephrolithotomy (PCNL).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!