Utility of patient-activated cardiac event recorders in the detection of cardiac arrhythmias

Chih Cheng Wu, Ming Hsiung Hsieh, Ching Tai Tai, Chern En Chiang, Wen Chung Yu, Yung Kuo Lin, Hsuan Ming Tsao, Phillip Yu An Ding, Shih Ann Chen

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Background: Patient-activated event recorders are useful for the diagnosis of arrhythmia in patients with palpitation and presyncope. However, the utility of event recorders in patients suspected of arrhythmia but presenting with other symptoms is not clear. Furthermore, the factors influencing their utility have not been evaluated. Methods: Event recorder reports of six hundred and sixty consecutive patients referred due to clinical suspicion of cardiac arrhythmia were reviewed. We divided symptoms into four groups: palpitation, presyncope, chest tightness, and dyspnea. We calculated the diagnostic yield according to patients' symptoms reported on the record, and analyzed the factors affecting the utility of event recorders. Results: The overall diagnostic yield was 64%, and those of palpitation, presyncope, chest tightness, and dyspnea were 66%, 57%, 51% and 60%, respectively. The most common five findings in our patients were sinus rhythm (36%), sinus tachycardia (30%), atrial premature complex (14%), ventricular premature complex (12%), and atrial fibrillation/atrial flutter (7%). The recording duration (8 ± 4 days) was short in the present study, but the overall diagnostic yield was similar to those of previous ones. Women had lower diagnostic yields than men, especially in atrial flutter-fibrillation. The diagnostie diagnostic yield was not influenced by age, ordered doctors, or history of cardiovascular disease. Conclusions: Patient-activated event recorders provided a good diagnostic yield in patients with different presentations of cardiac arrhythmia, and women had lower diagnostic yield in atrial flutter-fibrillation.

Original languageEnglish
Pages (from-to)117-120
Number of pages4
JournalJournal of Interventional Cardiac Electrophysiology
Issue number2
Publication statusPublished - Apr 2003


  • Arrhythmia
  • Event recorder

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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