| Multicenter clinical experience with an atrial lead designed to minimize far-field R-wave sensing. | |
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MedLine Citation:
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PMID: 19363053 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: To evaluate a novel atrial lead designed to reduce far-field sensing. METHODS AND RESULTS: Sixty-three patients with standard pacing indications were randomized to receive an OptiSense 1699T (St Jude Medical, USA) or conventional pacing lead in the right atrium. Post-implant follow-up was conducted for all patients at 90 days and for a subset at 360 days. Standard electrical parameters were measured. Thresholds of sensing were determined for far-field ventricular signals. The number of inappropriate mode switches was determined from the stored intracardiac electrogram (IEGM). At 90 days, an IEGM Holter recorded 24 h of IEGM. With atrial sensitivity programmed at 0.3 mV, no far-field sensing occurred in the OptiSense group, but it did occur in 20% and 30% of the control group at 90 and 360 days, respectively. Inappropriate mode switching was observed in 4% of the OptiSense group in contrast to 23% of the control group. The IEGM Holter found no far-field sensing in the OptiSense group, but did find 83 023 far-field events from 22% of control patients. The standard electrical parameters of the OptiSense leads were acceptable. CONCLUSION: The OptiSense lead reduced ventricular far-field sensing in the atrium while maintaining satisfactory pacing and sensing performance, resulting in less inappropriate mode switch. |
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Authors:
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Jeffrey W H Fung; Johannes Sperzel; Cheuk Man Yu; Joseph Y S Chan; Robert N Gelder; Michael X Yang; Ryan Rooke; Peter Boileau; Gerd Fröhlig |
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Publication Detail:
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Type: Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2009-04-10 |
Journal Detail:
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Title: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology Volume: 11 ISSN: 1532-2092 ISO Abbreviation: Europace Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-29 Completed Date: 2009-06-26 Revised Date: 2009-08-02 |
Medline Journal Info:
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Nlm Unique ID: 100883649 Medline TA: Europace Country: England |
Other Details:
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Languages: eng Pagination: 618-24 Citation Subset: IM |
Affiliation:
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Division of Cardiology, Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China. jwhfung@cuhk.edu.hk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Atrial Fibrillation / physiopathology, therapy* Electrocardiography* Electrocardiography, Ambulatory Equipment Design Female Foreign-Body Migration Heart Atria / physiopathology* Humans Male Middle Aged Pacemaker, Artificial* / adverse effects Sensitivity and Specificity |
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