Kidney STONE Calculator
Calculate STONE score for percutaneous neprolithotomy success prediction
Medical Disclaimer
This calculator is for educational purposes only. Always consult a healthcare professional for medical advice and diagnosis.
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STONE Score Calculation
About STONE Score
The STONE score predicts percutaneous neprolithotomy (PCNL) success and stone-free rates.
STONE Components:
- S: Stone size
- T: Tract length
- O: Obstruction
- N: Number of access tracts
- E: ESSENCE score
Score Interpretation:
- Low (0-5): 95% success rate
- Moderate (6-10): 85% success rate
- High (11-13): 70% success rate
ESSENCE Score:
- • Endoscopic combined intrarenal surgery
- • Stone burden
- • Stone number
- • Stone composition
- • Experience
Clinical Uses:
- • PCNL planning
- • Patient counseling
- • Risk assessment
- • Alternative treatment consideration
Limitations:
- • Surgeon experience not fully captured
- • Stone composition not considered
- • Patient factors not included
- • Based on retrospective data
Professional Resources:
- • Urologist
- • Urologic surgeon
- • Interventional radiologist
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