Lean-Based Approach to Improve Emergency Department Throughput

Objective: Lean methodology can be utilized to increase throughput in a fast-track care area without changing staffing in a busy, urban emergency department (ED). Methods: A retrospective before-and-after analysis was performed to an improvement process in a fast-track care area within an ED with a census of 100,000 patients. The intervention utilized Lean methodologies to identify inefficiencies in the throughput model set for patients triaged to fast-track. Multiple ED stakeholders were involved in formulating a more efficient framework for how patients would receive care when triaged to fast-track. Results: There was a decline in the patient's overall length of stay (-9%, p=0.08), arrival to the room (-10%, p=0.4418), and ED attending to disposition (-9%, p=0.003). Additionally, all aspects of patients leaving prior to treatment completion (against medical advice (-29.4%, p=0.006), elopement (-20.4%, p=0.049), and left without being seen (-5.3%, p=0.11)) declined. Discussion: Identifying wasted time and resources in a patient's stay in the ED allowed for a more efficient throughput model to be developed. This resulted in patients being able to be seen in a more methodical manner leading to decreased wait times and lower left without being seen rates. Conclusion: A Lean-based throughput model was implemented to improve efficiency, reducing the length of stay and increasing the volume of patients evaluated per shift without additional costs. This improvement led to fewer patients leaving before treatment and demonstrated the value of process improvement in healthcare.