- Healthcare error proliferation model
The Healthcare Error Proliferation Model is the adaptation of James Reason’s
Swiss Cheese Modeldesigned to illustrate the complexityinherent in the contemporary healthcaredelivery system and the attributionof human error within these systems. The Healthcare Error Proliferation Model (Palmieri, et. al, 2008) explains the sequence of events typically leading to adverse outcomes, emphasizing the role that organizational and external cultures contribute to error identification prevention, mitigation, and defense construction.
Healthcare systems are "complex" in that they are diverse in both structure (e.g. nursing units, pharmacies, emergency departments, operating rooms) and professional mix (e.g. nurses, physicians, pharmacists, administrators, therapists) and made up of multiple interconnected elements with "adaptive" tendencies in that they have the capacity to change and learn from experience. The term "complex adaptive systems" (CAS) was coined at the interdisciplinary
Santa Fe Institute(SFI), by John H. Holland, and Murray Gell-Mann. Subsequently, scholars such as Ruth Anderson, Rubin McDaniels, and Paul Cilliers have extended CAS theory and research to the social sciences such as education and healthcare.
The Healthcare Error Proliferation Model (HEPM) adapts the Swiss Cheese Model (Reason, 1990) to the complexity of healthcare delivery systems and integrated organizations. The Swiss Cheese Model, likens the complex adaptive system to multiple hole infested slices of Swiss cheese positioned side-by-side (Reason, 1990, 2000). The cheese slices are dubbed defensive layers to describe their role and function as the system location outfitted with features capable of intercepting and deflecting hazards. The layers represent discrete locations or organizational levels potentially populated with errors permitting error progression. The four layers include: 1) organizational leadership, 2) risky supervision, 3) situations for unsafe practices, and 4) unsafe performance.
The HEPM portrays hospitals as having multiple operational defensive layers outfitted with essential elements necessary to maintain key defensive barricades (Cook & O'Connor, 2005; Reason, 2000). By examining the defensive layers attributes, prospective locales of failure, the etiology of accidents might be revealed (Leape et al., 1995). Experts have discussed the importance of examining these layers within the context of the complex adaptive healthcare system (Kohn et al., 2000; Wiegmann & Shappell, 2003) and considering the psychological safety of clinicians. Hence, this model expands Reason’s seminal work.
The model incorporates the complex adaptive healthcare system as a key characteristic. Complex adaptive systems characteristically demonstrate self-organization as diverse agents interact spontaneously in nonlinear relationships [cite journal | author = Anderson, R. A., Issel, M. L., & McDaniel, R. R | year = 2003 | title = Nursing homes as complex adaptive systems: Relationship between management practice and resident outcomes | journal = Nursing Research | volume = 52 | issue = 1 | pages = 12–21.] [cite book | author = Cilliers, P. | year = 1998 | title = Complexity and post modernism: Understanding complex systems | publisher = New York: Routledgel. | ISBN = 978-0415152860] where professionals act as information processors (Cilliers, 1998; McDaniel & Driebe, 2001) and co-evolve with the environment (Casti, 1997). Healthcare professionals function in the system as diverse actors within the complex environment utilizing different methods to process information (Coleman, 1999) and solve systemic problems within and across organizational layers (McDaniel & Driebe, 2001).
A complex adaptive healthcare system (CAHS) is a care delivery enterprise with diverse clinical and administrative agents acting spontaneously, interacting in nonlinear networks where agents and patients are information processors, and actively co-evolve with their environment with the purposed to produce safe and reliable patient-centered outcomes. [cite journal | author = Palmieri, P. A., DeLucia, P. R., Ott, T. E., Peterson, L. T., & Green, A. | year = 2008 | title = The anatomy and physiology of error in averse healthcare events | journal = Advances in Health Care Management | volume = 7 | pages = 33–68 | doi = 10.1016/S1474-8231(08)07003-1 | accessdate 2008-08-29]
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None at this time.
Adverse effect (medicine)
International healthcare accreditation
Patient safety organization
Patient Safety and Nursing
Serious adverse event
Swiss Cheese modelof accident causation in human systems
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