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Abstract
ObjectiveTo report trends in surgical approach and associations with outcomes in children undergoing extirpative renal surgery in the state of Maryland over a 12-year period. MethodsThe Maryland Health Services Cost Review Commission (HSCRC) database was queried to identify children undergoing total or partial nephrectomy between 2000 and 2011. Demographic, clinical, hospital, and charge data were compared between children undergoing open and minimally invasive renal surgery. Multivariable logistic regression analysis was performed to identify independent predictors of prolonged length of hospital stay and 30-day readmission. Multivariable linear regression was performed to identify independent predictors of increased hospital charges. ResultsOf the 346 children undergoing extirpative renal surgery, 289 (83.5%) underwent total nephrectomy and 48 (13.9%) underwent minimally invasive surgery. Utilization of minimally invasive surgery for congenital urinary anomalies has steadily increased from 15% to 35% over the past decade. Children undergoing minimally invasive total nephrectomy were healthier, had shorter hospital stay, and were more likely to have surgery at a high-volume institution. No such differences were noted in patients undergoing open and minimally invasive partial nephrectomy. On multivariable regression analyses, high patient complexity was the main predictor of increased length of stay (OR 16.02, 95% CI 7.06–36.31), 30-day readmission (OR 3.04, 95% CI 1.38–6.70), and total hospital charge (p < 0.001). ConclusionIn Maryland hospitals, most extirpative renal surgeries in children are total nephrectomies performed using an open technique by high-volume surgeons. Although the overall proportion of minimally invasive surgeries has not increased over time, the utilization of MIS in congenital anomaly cases has. Patient complexity and not operative approach dictates postoperative morbidity and hospital charges.
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