• Robert L Ohsfeldt, Thomas R Miller, John E Schneider, and Cara M Scheibling.
• Avalon Health Economics LLC, 26 Washington St., Floor 3, Morristown, NJ 07960, USA; Texas A&M University, 212 Adriance Lab Rd 1266 TAMU, College Station, TX 77843, USA. Electronic address: rohsfeldt@tamhsc.edu.
• J Clin Anesth. 2016 Dec 1; 35: 157-162.

Study ObjectiveTo provide estimates of the costs and health outcomes implications of the excess risk of unexpected disposition for nurse anesthetist (NA) procedures.DesignA projection model was used to apply estimates of costs and health outcomes associated with the excess risk of unexpected disposition for NAs reported in a recent study.SettingAmbulatory and inpatient surgery.PatientsBase-case model parameters were based on estimates taken from peer-reviewed publications when available, or from other sources including data for all hospital stays in the United States in 2013 from the Healthcare Cost and Utilization Project Web site. The impact of parameter uncertainty was assessed using 1-way and 2-way sensitivity analyses.InterventionsNot applicable.MeasurementsMajor complication rates, relative risks of complications, anesthesia costs, costs of complications, and cost-effectiveness ratios.Main ResultsIn the base-case model, there were on average 2.3 fewer unexpected dispositions for physician anesthesiologists compared with NAs. Overall, anesthesia-related costs (including the cost of managing unexpected dispositions) were estimated to be about $31 higher per procedure for physician anesthesiologists compared with NAs. Alternative model scenarios in the sensitivity analysis produced estimates of smaller additional costs associated with physician anesthesia administration, to the point of cost savings in some scenarios.ConclusionsProvision of anesthesia for ambulatory knee and shoulder procedures by physician anesthesiologists results in better health outcomes, at a reasonable additional cost, compared with procedures with NA-administered anesthesia, at least when using updated cost-effectiveness willingness-to-pay benchmarks.Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.

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