Key result
Pacemaker telemetry using STOP-AF criteria achieved only 57% sensitivity and 64% specificity for detecting atrial fibrillation compared to 24-hour Holter recordings.
Why the study?
Does pacemaker telemetry accurately detect atrial fibrillation compared to 24 h Holter recordings in patients with permanent pacemakers?
Observational (n=18)
Does pacemaker telemetry accurately detect atrial fibrillation compared to 24 h Holter recordings in patients with permanent pacemakers?
Pacemaker telemetry using STOP-AF criteria demonstrated low sensitivity and specificity for detecting atrial fibrillation compared to Holter monitoring, indicating a need for further validation of device-specific diagnostic criteria.
Answers are grounded in this paper and cite their sources.
Pacemaker telemetry may be unreliable for AF detection; leaves open need for validated device-specific criteria versus ambulatory monitoring.
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.
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Chris Plummer (2001) conducted an observational in Atrial fibrillation (n=18). Pacemaker telemetry vs. Holter recordings was evaluated on Diagnosis of atrial fibrillation. Pacemaker telemetry using STOP-AF criteria achieved only 57% sensitivity and 64% specificity for detecting atrial fibrillation compared to 24-hour Holter recordings.
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