Treatment of extensively-drug resistant (XDR) Acinetobacter and impact on clinical outcomes in U.S. veterans affairs (VA) medical centers.

BACKGROUND: Guidelines for treatment of resistant Acinetobacter baumannii (AB) are limited, leaving a knowledge gap in best practices for treatment. This study described treatments and outcomes of extensively-drug resistant (XDR) AB. METHODS: Retrospective cohort study including patients with XDRAB (non-susceptible to at least 1 agent in all but 2 or fewer classes) and antibiotic treatment between 2012 and 2018 at Veterans Affairs Medical Centers. Descriptive statistics summarized antibiotics; propensity score adjusted regression models were fit to compare outcomes. RESULTS: Two hundred and seventy-six patients with 439 XDRAB cultures and Gram-negative targeted antibiotic treatment were included. One hundred and eighteen (43%) patients received monotherapy while 158 (57%) received combination therapy, most commonly including a carbapenem (n = 106, 67%) and polymyxin (n = 66, 42%). One hundred and eighty-four (67%) patients received inadequate treatment. In adjusted models, combination therapy did not decrease the odds of in-hospital (aOR 1.24, 95%CI 0.60-2.59) or 30-day (aOR 1.43, 95%CI 0.86-2.38) mortality, or median postculture length of stay (aIRR 1.11, 95%CI 0.86-1.43). Likewise, receipt of inadequate treatment was not associated with poorer outcomes. CONCLUSIONS: In this national cohort of patients with XDRAB, neither combination therapy nor receipt of adequate treatment improved outcomes. Further research is needed on optimal management of this difficult-to-treat pathogen with few effective antibiotic options.

The Effect of a Comprehensive Care Transition Model on Cost and Utilization for Medically Complex Children With Cerebral Palsy.

INTRODUCTION: Our aim was to evaluate cost and acute care utilization related to an organized approach to care coordination and transitional care after major acute care hospitalization for children with medical complexities, including cerebral palsy. METHODS: A retrospective cohort of 32 patients from Ranken Jordan Pediatric Bridge Hospital (RJPBH) who received the Care Beyond the Bedside model was compared with 151 patients receiving standard care elsewhere across Missouri. Claims data (2007-2012) were obtained from MoHealthNet, Missouri's Medicaid program, for all children with moderate to severe cerebral palsy (defined using approximated Gross Motor Function Classification System levels) who had at least one hospital visit during the study period (N = 183). Risk-adjusted linear and Poisson regression models were used to analyze per-member-per-month costs and three indicators of acute care utilization (emergency department visits, readmissions, and inpatient days). RESULTS: RJPBH patients were associated with statistically significant reductions in per-member-per-month costs (-21%), hospital readmissions (-66%), and inpatient days (-57%). DISCUSSION: RJPBH's enhanced interprofessional medical home-like model, including intense care coordination, psychosocial therapy, family and caregiver empowerment, and transitional care, may be keys to reducing cost and unnecessary hospital use for children with medical complexities with cerebral palsy who receive Medicaid.