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Lean Six Sigma to Reduce Intensive Care Unit Length of Stay and Costs in Prolonged Mechanical Ventilation

Trzeciak, Stephen; Mercincavage, Michael; Angelini, Cory; Cogliano, William; Damuth, Emily; Roberts, Brian, W.; Zanotti, Sergio; Mazzarelli, Anthony, J.

The Journal for Healthcare Quality (JHQ): January/February 2018 - Volume 40 - Issue 1 - p 36–43
doi: 10.1097/JHQ.0000000000000075
Original Article

Objective: Patients with prolonged mechanical ventilation (PMV) represent important “outliers” of hospital length of stay (LOS) and costs (∼$26 billion annually in the United States). We tested the hypothesis that a Lean Six Sigma (LSS) approach for process improvement could reduce hospital LOS and the associated costs of care for patients with PMV.

Design: Before-and-after cohort study.

Setting: Multidisciplinary intensive care unit (ICU) in an academic medical center.

Patients: Adult patients admitted to the ICU and treated with PMV, as defined by diagnosis-related group (DRG).

Methods: We implemented a clinical redesign intervention based on LSS principles. We identified eight distinct processes in preparing patients with PMV for post-acute care. Our clinical redesign included reengineering daily patient care rounds (“Lean ICU rounds”) to reduce variation and waste in these processes. We compared hospital LOS and direct cost per case in patients with PMV before (2013) and after (2014) our LSS intervention.

Results: Among 259 patients with PMV (131 preintervention; 128 postintervention), median hospital LOS decreased by 24% during the intervention period (29 vs. 22 days, p < .001). Accordingly, median hospital direct cost per case decreased by 27% ($66,335 vs. $48,370, p < .001).

Conclusion: We found that a LSS-based clinical redesign reduced hospital LOS and the costs of care for patients with PMV.

For more information on this article, contact Stephen Trzeciak at trzeciak-stephen@cooperhealth.edu.

The authors declare no conflicts of interest.

Supplemental digital content is available for this article. Direct URL citations appear in the printed text and in the HTML and PDF versions of the article at www.jhqonline.com.

© 2018 National Association for Healthcare Quality
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