| Summary: | Objective: To explore how best to deimplement nonrecommended medical services, which can result in excess costs and patient harm. Methods: We conducted telephone interviews with 15 providers at 3 health systems from June 19 to November 21, 2017. Using the case of nonrecommended imaging in patients with cancer, participants assessed the potential for 7 rationales or “arguments,” each characterizing overuse in terms of a single problem type (cost or quality) and affected stakeholder group (clinicians, institutions, society, or patients), to convince colleagues to change their practices. We tested rationales for all problem-stakeholder combinations appearing in prior deimplementation studies. Results: Participants’ views varied widely. Relatively few found cost arguments powerful, except for patients’ out-of-pocket costs. Participants were divided on institution-quality and clinician-quality rationales. Patient-quality rationales resonated strongly with nearly all participants. However, a “yes, but” phenomenon emerged: after initially expressing strong support for a rationale, participants often undercut it with denials or rationalizations. Conclusion: Deimplementation efforts should combine multiple rationales appealing to clinicians’ diverse perspectives and priorities. In addition, efforts must consider the complex cognitive dynamics that can undercut data and reasoned argumentation.
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