© 2001 by European Society of Cardiology
The use of permanent pacemakers in the detection of cardiac arrhythmias
Department of Cardiology, Freeman Hospital Newcastle upon Tyne, U.K.
AIMS: To compare pacemaker telemetry with simultaneous Holter recordings in the diagnosis of atrial fibrillation and to evaluate the STOP-AF study telemetry criteria for the presence of atrial fibrillation.
METHODS AND RESULTS: 18 consecutive patients enrolled in the STOP-AF study had simultaneous 24 h Holter recordings and down-loaded pacemaker telemetry. There was good agreement on heart rate, but the STOP-AF pacemaker criteria achieved only 57% sensitivity with 64% specificity for the presence of atrial fibrillation on Holter recording over 24 h. False-positives appeared to result from far-field sensing while false-negatives occurred with very short episodes of atrial fibrillation. The pacemaker's antitachycardia responses were not specific for the presence of atrial fibrillation.
CONCLUSION: Pacemaker telemetry is a potentially important source of data on cardiac arrhythmias. Further studies are required to define the limitations of these data in specific devices before they can be interpreted with confidence.
Key Words: Pacemaker, atrial fibrillation, Holter monitoring, telemetry
Correspondence: Dr C. J. Plummer, c/o Dr McComb, Department of Cardiology, Freeman Hospital, Newcastle upon Tyne NE7 7DN, U.K. E-mail: C.J.Plummer{at}ncl.ac.uk
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