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Does nephrolithometry scoring systems predict success and complications in miniPCNL?
Ali Ayranci1, Burak Ucpinar2, Ufuk Caglar2
1Department of Urology, Haseki Training and Research Hospital, Ugur Mumcu Mah. Belediye Sk. No: 7, Sultangazi, 34265, Istanbul, Turkey. draliayranci@yahoo.com.
International Urology and Nephrology
|March 15, 2022
Summary
STONE and CROES nephrolithometric scoring systems (NSSs) effectively predict stone-free status after mini percutaneous nephrolithotomy (PCNL). However, these and other NSSs do not reliably predict complications following the procedure.
Area of Science:
- Urology
- Endourology
- Nephrolithiasis Management
Background:
- Nephrolithometric scoring systems (NSSs) aid in predicting outcomes for conventional percutaneous nephrolithotomy (PCNL).
- Limited data exists on the utility of these NSSs for mini-PCNL, a less invasive variant.
Purpose of the Study:
- To compare the predictive capabilities of established NSSs for mini-PCNL treatment success and complications.
- To identify reliable scoring systems for optimizing patient selection and outcomes in mini-PCNL procedures.
Main Methods:
- Retrospective review of 140 patients undergoing PCNL between September 2016 and May 2018.
- Evaluation of stone-free status via non-contrast CT 1-3 months post-procedure.
- Classification of postsurgical complications using the modified Clavien-Dindo system.
Main Results:
- The Clinical Research Office of the Endourological Society (CROES) and STONE NSSs significantly predicted mini-PCNL treatment success (p=0.043, p=0.018).
- Guy's NSS did not significantly predict treatment success (p=0.415).
- None of the evaluated NSSs (Guy's, CROES, STONE) significantly predicted postsurgical complications (p>0.189 for all).
Conclusions:
- STONE and CROES NSSs are valuable independent predictors of achieving stone-free status after mini-PCNL.
- Current NSSs lack efficacy in predicting postsurgical complications associated with mini-PCNL.
- Further research may be needed to develop specialized scoring systems for mini-PCNL complications.
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