Special Session 45: 

Modelling Antimicrobial Deescalation in ICUs

Xi Huo
Univeristy of Miami
USA
Co-Author(s):    J. Hughes, L. Falk, A. Hurford, B. Coburn, A. Morris, J. Wu
Abstract:
Antimicrobial de-escalation aims to minimize resistance to high-value broad-spectrum empiric antimicrobials by switching to alternative drugs when testing confirms susceptibility. Though widely practiced in ICUs, the effects of de-escalation are not well understood. We develop a high-dimensional ODE model to assess the effect of de-escalation on a broad range of outcomes, and clarify expectations. In this talk, I will present the medical background and conclusions of our first modelling results, and show how we numerically analyze the model output with a broad range of undetermined parameters and limited data.