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The clinical implications of brushite calculi
L W Klee1, C G Brito, J E Lingeman
1Department of Urology, Indiana University School of Medicine, Indianapolis.
The Journal of Urology
|April 1, 1991
Summary
Brushite urinary calculi require aggressive treatment and metabolic evaluation. Percutaneous nephrostolithotomy or ureteroscopy with ureteral lithotripsy offer high success rates for stone removal.
Area of Science:
- Urology
- Nephrology
- Mineral Metabolism
Background:
- Brushite (calcium phosphate dihydrate) urinary calculi are a distinct stone subtype.
- Understanding their clinical presentation and treatment outcomes is crucial for effective patient management.
Observation:
- A review of 30 patients with 46 brushite calculi revealed metabolic activity and a high incidence of recurrent stone formation (87%).
- Brushite stones often appeared hyperdense on X-ray but lacked a consistent shape.
- Metabolic evaluation identified treatable abnormalities in 82% of patients.
Findings:
- Percutaneous nephrostolithotomy or ureteroscopy with ureteral lithotripsy achieved a 92% stone-free rate.
- Extracorporeal shock wave lithotripsy monotherapy had a significantly lower stone-free rate of 11%.
Implications:
- Brushite stone patients necessitate aggressive management strategies.
- Comprehensive metabolic evaluation is essential for identifying underlying causes.
- Close clinical follow-up is recommended to prevent recurrence.