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Int. braz. j. urol ; 40(6): 763-771, Nov-Dec/2014. tab, graf
Artículo en Inglés | LILACS | ID: lil-735990

RESUMEN

Purpose To investigate risk factors for urine leak in patients undergoing minimally invasive partial nephrectomy (MIPN) and to determine the role of intraoperative ureteral catheterization in preventing this postoperative complication. Materials and Methods MIPN procedures done from September 1999 to July 2012 at our Center were reviewed from our IRB-approved database. Patient and tumor characteristics, operative techniques and outcomes were analyzed. Patients with evidence of urine leak were identified. Outcomes were compared between patients with preoperative ureteral catheterization (C-group) and those without (NC-group). Univariable and multivariable analyses were performed to identify factors predicting postoperative urine leak. Results A total of 1,019 cases were included (452 robotic partial nephrectomy cases and 567 laparoscopic partial nephrectomy cases). Five hundred twenty eight patients (51.8%) were in the C-group, whereas 491 of them (48.2%) in the NC-group. Urine leak occurred in 31(3%) cases, 4.6% in the C-group and 1.4% in the NC-group (p<0.001). Tumors in NC-group had significantly higher RENAL score, shorter operative and warm ischemic times. On multivariable analysis, tumor proximity to collecting system (OR=9.2; p<0.01), surgeon’s early operative experience (OR=7.8; p<0.01) and preoperative moderate to severe CKD (OR=3.1; p<0.01) significantly increased the odds of the occurrence of a postoperative urine leak. Conclusion Clinically significant urine leak after MIPN in a high volume institution setting is uncommon. This event is more likely to occur in cases of renal masses that are close to the collecting system, in patients with preoperative CKD and when operating surgeon is still in the learning curve for the procedure. Our findings suggest that routine intraoperative ureteral catheterization during MIPN does not reduce the probability of postoperative urine leak. In addition, it adds to the overall ...


Asunto(s)
Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nefrectomía/efectos adversos , Cateterismo Urinario/métodos , Incontinencia Urinaria/etiología , Incontinencia Urinaria/prevención & control , Tasa de Filtración Glomerular , Cuidados Intraoperatorios , Análisis Multivariante , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Nefrectomía/métodos , Tempo Operativo , Reproducibilidad de los Resultados , Factores de Riesgo , Insuficiencia Renal Crónica/cirugía , Índice de Severidad de la Enfermedad , Estadísticas no Paramétricas , Factores de Tiempo , Resultado del Tratamiento
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