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Gaceta médica de México
versión On-line ISSN 2696-1288versión impresa ISSN 0016-3813
Resumen
MORENO-PALACIOS, Jorge et al. Tasa libre de litos sin complicación mayor como definición de éxito en nefrolitotomía percutánea. Gac. Méd. Méx [online]. 2019, vol.155, n.1, pp.52-57. Epub 01-Jul-2021. ISSN 2696-1288. https://doi.org/10.24875/gmm.18004474.
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.
Palabras llave : Kidney calculi; Percutaneous nephrolithotomy; Risk factor; Postoperative complications; Treatment outcomes.