CJEM Articles: Lean principles

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  • Application of Lean principles to improve early cardiac care in the emergency department
    September 2011 13 5
    Alecs Chochinov, Erin Weldon, Trevor Strome, Zoe Piggott

    Ojective:

    To achieve our goal of excellent emergency cardiac care, our institution embarked on a Lean process improvement initiative. We sought to examine and quantify the outcome of this project on the care of suspected acute coronary syndrome (ACS) patients in our emergency department (ED).

    Methods:

    Front-line ED staff participated in several rapid improvement events, using Lean principles and techniques such as waste elimination, supply chain streamlining, and standard work to increase the value of the early care provided to patients with suspected ACS. A chart review was also conducted. To evaluate our success, proportions of care milestones (first electrocardiogram [ECG], ECG interpretation, physician assessment, and acetylsalicylic acid [ASA] administration) meeting target times were chosen as outcome metrics in this before-and-after study.

    Results:

    The proportion of cases with 12-lead ECGs completed within 10 minutes of patient triage increased by 37.4% (p < 0.0001). The proportion of cases with physician assessment initiated within 60 minutes increased by 12.1% (p = 0.0251). Times to ECG, physician assessment, and ASA administration also continued to improve significantly over time (p values < 0.0001). Post-Lean, the median time from ECG performance to physician interpretation was 3 minutes. All of these improvements were achieved using existing staff and resources.

    Conclusions:

    The application of Lean principles can significantly improve attainment of early diagnostic and therapeutic milestones of emergency cardiac care in the ED.

  • Applying the Lean principles of the Toyota Production System to reduce wait times in the emergency department
    January 2010 12 1
    D. Ng, G. Vail, N. Schmidt, S. Thomas

    Objective: In recognition of patient wait times, and deteriorating patient and staff satisfaction, we set out to improve these measures in our emergency department (ED) without adding any new funding or beds. Methods: In 2005 all staff in the ED at Hôtel Dieu Grace Hospital began a transformation, employing Toyota Lean manufacturing principles to improve ED wait times and quality of care. Lean techniques such as value stream mapping, just in time delivery techniques, workplace organization, reduction of systemic wastes, use of the worker as the source of quality improvement and ongoing refinement of our process steps formed the basis of our project. Results: Our ED has achieved major improvements in depart mental flow without adding any additional ED or inpatient beds. The mean registration to physician time has decreased from 111 minutes to 78 minutes. The number of patients who left without being seen has decreased from 7.1% to 4.3%. The length of stay (LOS) for discharged patients has decreased from a mean of 3.6 to 2.8 hours, with the largest decrease seen in our patients triaged at levels 4 or 5 using the Canadian Emergency Department Triage and Acuity Scale. We noted an improvement in ED patient satisfaction scores following the implementation of Lean principles. Conclusion: Lean manufacturing principles can improve the flow of patients through the ED, resulting in greater patient satisfaction along with reduced time spent by the patient in the ED.