Medicare-mandated shared decision making for left atrial appendage closure in clinical practice.

Introduction: The Centers for Medicare & Medicaid Services (CMS) required a shared decision-making (SDM) interaction, with an "independent" physician, before left atrial appendage closure (LAAC). The purpose of this study is to better understand how this requirement is implemented in clinical practice.
Methods: We surveyed LAAC-performing centers. The characteristics of respondent and nonrespondent hospitals were compared using the CMS Provider of Services File for 2017.
Results: We received 86 responses out of 269 surveys mailed (32%). Respondent and nonrespondent hospital affiliations were similar: mean hospital size 525 beds, 15% for-profit, and 34% teaching hospitals. Thirty-four respondents (39.5%) stated that the implanting physician conducts some or all of the SDM interactions. The percentage of patients who decide not to undergo LAAC after the SDM interaction was estimated at 8.1%. Out of 72 responses to an open-ended question about the benefit of the SDM interaction, 44 (61%) described the requirement in negative terms, of which most felt the requirement was burdensome for patients and providers. Only 28 respondents (39%) described the requirement in positive or mixed terms.
Conclusion: In violation of the letter of the CMS policy for LAAC, implanting physicians perform the SDM interaction at nearly 40% of responding hospitals. Most respondents felt the SDM requirement was burdensome for patients. More detailed guidance from CMS on how to comply with the policy may result in better alignment between the intent of the policy and how it is implemented.
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