Leadless pacemaker implantation complications and the denominator problem

Article Cardiac & Cardiovascular Systems

Major adverse clinical events associated with implantation of a leadless intracardiac pacemaker

Robert G. Hauser et al.

Summary: Leadless intracardiac pacemakers like the Medtronic Micra were developed to reduce complications. However, a study comparing MACE associated with Micra implantation to CapSureFix transvenous pacing leads found a higher incidence of major adverse clinical events with Micra, including higher rates of tamponade, death, and the need for rescue thoracotomies. Micra patients also had higher rates of complications such as requiring CPR and suffering from hypotension or shock compared to CapSureFix recipients.

HEART RHYTHM (2021)

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Editorial Material Cardiac & Cardiovascular Systems

An emblematic defibrillator problem

Robert G. Hauser et al.

JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY (2021)

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Article Cardiac & Cardiovascular Systems

Contemporaneous Comparison of Outcomes Among Patients Implanted With a Leadless vs Transvenous Single-Chamber Ventricular Pacemaker

Jonathan P. Piccini et al.

Summary: This study compared patient characteristics and complications between patients implanted with leadless VVI and transvenous VVI pacemakers. Despite significant differences in patient characteristics, patients with leadless VVI pacemakers had higher rates of pericardial effusion and/or perforation but lower rates of other device-related complications and revisions at 6 months.

JAMA CARDIOLOGY (2021)

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Article Cardiac & Cardiovascular Systems