Final results from a pilot study with an implantable loop recorder to determine the etiology of syncope in patients with negative noninvasive and invasive testing.
Twenty-four patients with recurrent unexplained syncope and negative tilt and electrophysiologic testing underwent implantation of the implantable loop recorder, with recurrence of syncope in 21 patients 5.1+/-4.8 months after device implantation. Eighteen of the 21 had a treatable diagnosis, with arrhythmias in 11. Treatment resulted in resolution of syncope in most patients during long-term follow-up.
Division of Cardiology, University of Western Ontario, London, Canada.
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Krahn
G J
GJ
Klein
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R
Yee
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C
Norris
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D010865:Pilot Projects; D013575:Syncope / Q000209:etiology*