Document Detail


Pacemaker patient-triggered event recording: accuracy, utility, and cost for the pacemaker follow-up clinic.
MedLine Citation:
PMID:  8945047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many pacemaker patients have vague symptoms following implantation. It is often difficult for the physician to ascertain if they are cardiac in origin. A new pacemaker feature has been introduced, Patient-Triggered Event Records (PTER), to help the physician with this diagnosis. The PTER is a continuously running event record which stores the cardiac rhythm and rate. Brief application of a magnet will transfer the record into the device's memory. The data recorded will be the 97 events prior to the magnet application and the 30 events following magnet removal. The exact state of pacing (atrial and ventricular sensing/pacing, or premature ventricular events) and the rate of the ventricular events will be graphically displayed by the programmer for all 127 events. Thus, the exact pacer and cardiac rhythm can be determined during the period of the symptomatic episode. A total of three PTER's can be stored within the device. If a fourth is recorded, it will replace the oldest record. Three pacemakers with the PTER feature were tested in vitro with five different simulated cardiac rhythms. A beat-by-beat comparison between the PTER and the 15 simulated test rhythms revealed a 100% accurate documentation by PTER. Sixteen pacemaker patients which have the PTER feature were monitored using a King of Hearts for a total of 43 symptomatic events. The PTER records produced clinically relevant information 98% of the time while the King of Hearts produced clinically relevant information 81% of the time. A comparison of costs of the two different methods of monitoring these patients, was $2,432 versus $4,480 for the PTER and loop event monitor respectively. The PTER is an accurate, lower cost method for monitoring and diagnosing symptomatic pacemaker patients. The PTER can be used as the first diagnostic tool in troubleshooting patients with paroxysmal symptoms in the pacemaker clinic population.
Authors:
C Machado; D Johnson; J R Thacker; J L Duncan
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  19     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1996 Nov 
Date Detail:
Created Date:  1997-03-06     Completed Date:  1997-03-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1813-8     Citation Subset:  IM    
Affiliation:
HeartCare Institute, Tampa, Florida 33613-4612, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Arrhythmias, Cardiac / diagnosis
Atrial Function
Cardiac Pacing, Artificial / methods
Cohort Studies
Costs and Cost Analysis
Female
Follow-Up Studies
Heart Rate
Humans
Magnetics
Male
Middle Aged
Monitoring, Ambulatory* / economics,  instrumentation,  methods
Pacemaker, Artificial* / economics
Prospective Studies
Signal Processing, Computer-Assisted
Software
Ventricular Function
Ventricular Premature Complexes / physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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