Sensing performance of a new wireless implantable loop recorder: a 12-month follow up study

Pacing and Clinical Electrophysiology : PACE
Sony JacobRandy A Lieberman

Abstract

The implantable loop recorder (ILR) is a cost-effective tool with a high diagnostic yield in the evaluation of unexplained recurrent syncope. The Sleuth ILR (Transoma Medical, St. Paul MN, USA) is a new-generation ILR with wireless transmission capability approved by the Food and Drug Administration. We report the feasibility of achieving appropriate sensing over 1-year follow-up at the traditional midclavicular and alternative inframammary implantation sites without preimplant electrocardiogram (ECG) mapping. We studied 32 patients with unexplained syncope, aged 58.4+/-18.44 years, with an ILR implanted at the left midclavicular location (n = 17) or the left inframammary site (n = 15) over 1-year post implant. No preimplant electrocardiogram (ECG) mapping was performed. The highest R-wave amplitudes were observed at the inframammary site, but over the entire follow-up period, amplitudes were not significantly different from those at the midclavicular site. At both sites, R-wave amplitudes at the 6-month follow-up were significantly higher than those measured at 1 week. P-waves were visible in 80-90% of the patients. There was no discernible difference in P-waves (amplitude) relative to implant location. Body mass index, left v...Continue Reading

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Citations

Feb 8, 2011·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Vijayapraveena ParuchuriSuneet Mittal
Apr 26, 2012·Pacing and Clinical Electrophysiology : PACE·Franco GiadaAntonio Raviele
Jun 28, 2015·Cardiology Clinics·Franco Giada, Angelo Bartoletti

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