Received: 13 December 2018
Accepted: 6 May 2019
First Online: 17 May 2019
Compliance with ethical standards
: The institutional review board at Northwestern University approved the study protocol.
: Bradley P. Knight receives honoraria for consulting and speaking for Medtronic Inc. Rod S. Passman receives research support, consulting fees, and speaker fees from Medtronic; royalties from UpToDate; and research support from Pfizer and Kardia. Northwestern University receives fellowship support from Medtronic, Inc.