Background: Standardization is an evidence-based approach to improve handoffs. The factors underpinning fidelity (that is, adherence) to standardized handoff protocols are not well specified, which hampers implementation and sustainability efforts.
Methods: The Handoffs and Transitions in Critical Care (HATRICC) study (2014-2017) involved the creation and implementation of a standardized protocol for operating room (OR)-to-ICU handoffs in two mixed surgical ICUs.