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Updated: Aug 23, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
Implantable cardioverter-defibrillators: expanding indications
1Division of Cardiology and Cardiovascular Center, Penn State University College of Medicine, Hershey, Pennsylvania 17033, USA. gnaccarelli@psu.edu
Purpose Of Review:
This article reviews multiple secondary and primary prevention trials that have expanded the indications for implantable cardioverter-defibrillators (ICDs).
Recent Findings:
Most studies performed over the last several years have concentrated on the role of ICDs in high-risk patients for the primary prevention of sudden death. Several recent trials that have been completed but not published are also reviewed.
Summary:
Data from recently completed trials and evolving ICD technology, such as ICDs with cardiac resynchronization capabilities, will alter indications for ICDs in the near future.
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