Pediatric Intrathecal Baclofen Pumps: A Descriptive Analysis of Hospital Course and Associated Costs.

The purpose of this study was to identify predictors of increased cost and postoperative length-of-stay (LOS) following intrathecal baclofen pump (ITBP) placement. Patients were derived from the 2009/2012 kids' inpatient database. Inclusion criteria were selected for patients with ICD-9 codes 343.X (infantile cerebral palsy), 86.06 (infusion pump insertion), 03.90 (spinal catheter insertion), and elective hospitalizations. Nonparametric univariate analysis and subsequent gamma log-link general linear modeling were used to identify significant predictors of cost/LOS (p < 0.05). 529 unweighted patients (787 with survey weights applied) met criteria. Median LOS was 3.00 days, and median cost was USD 23,284. Following multivariate modeling, predictors of increased LOS (in days) included increased hospital ITBP volume (p = 0.027), small hospital size (+0.55, p = 0.004), device complications (+0.95, p < 0.001), procedural complications (+1.40, p < 0.001), additional procedures (+0.86, p < 0.001), electrolyte abnormalities (+3.74, p < 0.001), and neurological comorbidities (+1.60, p < 0.001). Factors associated with decreased LOS were paralysis (-0.53, p < 0.001), Northeastern hospital region (-0.55, p = 0.018), and investor-owned hospital status (-0.75, p = 0.001). Similarly, predictors of increased cost included race of Hispanic (+USD 1,156, p = 0.033) or "other" (+USD 2,158, p = 0.001), Northeast hospital region (+USD 4,120, p < 0.001), small (+USD 4,139, p < 0.001) or medium (+USD 3,368, p < 0.001) hospital sizes, additional procedures (+USD 1,649, p < 0.001), neurological comorbidities (+USD 3,222, p = 0.003), and increased LOS (p < 0.001). Factors associated with decreased cost included Western hospital region (-USD 1,594, p = 0.001), government hospitals (-USD 1,391, p = 0.019), and investor-owned hospitals (-USD 2,057, p = 0.021). This study found multiple variables associated with increased cost/LOS following ITBP placement. Broadly, this analysis demonstrates national trends associated with increased cost following ITBP placement.

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