Features and Results of Conducted Studies Using a Lean Management Approach in Emergency Department in Hospital: A Systematic Review

Abstract Objective: To perform a systematic review of the properties and results of the studies that their approaches are lean management in emergency departments and the factors which influence on their performance. Method: The necessary information in the first stage was collected by searching these keywords: "Lean principles" “Lean Six Sigma", "Lean Process", “Lean thinking”, “Lean Methodology”, “Toyota Production System lean processing”, "lean techniques", "emergency department”, “emergency medicine”, “emergency room” and “emergency care ” . And in the next stage