Acute Performance of a Right Ventricular Automatic Pacing Threshold Algorithm for Implantable Defibrillators.
Introduction: Automatic pacing threshold (AT) testing with threshold trending and output adjustment may simplify follow-up and improve cardiac rhythm device longevity. The objective of this study was to evaluate the performance of a new right ventricular (RV) AT algorithm for implantable cardioverte...
| Published in: | Pacing & Clinical Electrophysiology Vol. 35; no. 3; pp. 259 - 269 |
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| Main Authors: | , , , , , , |
| Format: | research tables/charts tracings Journal Article |
| Published: |
Wiley-Blackwell
Mar2012
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104527974&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104527974 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Mar2012 vid: 35 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104527974 72416752 10.1111/j.1540-8159.2011.03286.x NLM22150243 104527974 ppf: 259 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Acute Performance of a Right Ventricular Automatic Pacing Threshold Algorithm for Implantable Defibrillators. aug: au: Gold, Michael R. Dong, Yanting Greer, Steve Giudici, Michael C. Haffajee, Charles I. Lowy, Jonathan Ellenbogen, Kenneth A. affil: Medical University of South Carolina, Charleston, South Carolina sug: subj: Defibrillators, Implantable Cardiac Pacing, Artificial Algorithms Heart Ventricle Human Descriptive Statistics Prospective Studies Multicenter Studies Data Analysis Software T-Tests Male Female Funding Source Male Female ab: Introduction: Automatic pacing threshold (AT) testing with threshold trending and output adjustment may simplify follow-up and improve cardiac rhythm device longevity. The objective of this study was to evaluate the performance of a new right ventricular (RV) AT algorithm for implantable cardioverter defibrillators (ICDs) using RVcoil to Can evoked response sensing. Method: Patients undergoing ICD, with or without cardiac resynchronization therapy device, implant, replacement, or upgrade were enrolled. A pulse generator emulator (Can) was temporarily placed in the device pocket. An external pacing system (Boston Scientific, St. Paul, MN, USA) with customized software was used for performing threshold tests and data acquisition. RV manual threshold and up to four AT tests using various pacing parameters were conducted. The threshold measurement and the capture detection performance of the RV AT tests were evaluated through comparison with visual examination of surface electrocardiogram. Results: Data from 43 patients were analyzed. A total of 158 AT tests were performed, in which 144 AT tests (91.1%) measured correct threshold values. No consecutive asystolic noncaptured beats were observed in any AT tests, and none of the AT tests resulted in incorrectly low threshold measurements. The difference between manual and AT measurements was -0.05 ± 0.43 V. The accuracy for detecting capture and noncaptured beats were 95% and 99%, respectively. Conclusion: The RVcoil to Can evoked response sensing based RV AT algorithm can reliably measure pacing threshold for ICDs, including CRT-Ds. (PACE 2011;1-10) pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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