>Gaceta Médica de México
>Year 2019, Issue 1
Moreno-Palacios J, Avilés-Ibarra OJ, López-Samano VA, Rivas-Ruiz R, Rodríguez-Silverio J, Maldonado-Alcaraz E
Tasa libre de litos sin complicación mayor como definición de éxito en nefrolitotomía percutánea
Gac Med Mex 2019; 155 (1)
PDF: 240.43 Kb.
Introduction: Success in percutaneous nephrolithotomy (PCNL) is defined as a stone-free status; however, major complications
are highly common and have been reported as a secondary outcome. Objective: To propose a new definition of PCNL success
that comprises a stone free rate without major complications and a risk scale to predict this outcome. Methods: Historical
cohort of patients undergoing PCNL. The included variables were age, gender, urine culture, Charlson’s comorbidity index
(CCI) and complex stones. Success was defined as a stone free status with or without Clavien grade ≤ 2 complication; intermediate
success: with stones, with or without Clavien grade ≤ 2 complication; and failure: with or without stones with Clavien
grade ≤ 2 complication. Bivariate analysis was performed to identify which factors are associated with the outcome. The independent
weight of each factor was calculated by multiple logistic regression analysis. Results: 568 procedures were included,
59% of which were in females. Median age was 49 years; 65%, 22% and 13% of cases were classified as success, intermediate
success and failure, respectively. Female sex, positive urine culture, complex stones and severe CCI were
associated with failure. Conclusions: The likelihood of success was directly proportional to the number of risk factors.
||Kidney calculi, Percutaneous nephrolithotomy, Risk factor, Postoperative complications, Treatment outcomes.
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>Gaceta Médica de México
>Year 2019, Issue 1