Dollars and sense: the economics and outcomes of patients undergoing carotid endarterectomy at Royal Adelaide Hospital.

This study examined the costs and outcomes of patients undergoing carotid endarterectomy who returned directly to the vascular unit after surgery rather than to the intensive care unit (ICU)/high dependency unit (HDU). The ICU/HDU is for critically ill patients. HDU is the step-down area from the ICU. The nurse-to-patient ratio for these patients is 1:2 and senior medical staff are available 24 hours a day. To prepare staff for the change in practice, an intense educational program was provided and protocols for patient management were developed and implemented. Outcomes were then monitored for the group of patients who returned directly to the vascular unit. Case notes audits, informal patient interviews, daily monitoring of patient outcomes, and an analysis of costing data from Australian Diagnostic Related Groups demonstrated that 50% of patients required transfer to the ICU/HDU after surgery for respiratory, hemodynamic, or neurologic management. The remaining 50% of patients returned directly to the vascular unit with no major complications and had better outcomes with less intensive nursing care overall. The length of hospital stay and the management costs were reduced significantly.