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Automatic measureme...
Automatic measurement of atrial pacing thresholds in dual-chamber pacemakers: Clinical experience with atrial capture management
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Sperzel, J (author)
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Milasinovic, G (author)
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Smith, T W (author)
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Mead, H (author)
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- Brandt, Johan (author)
- Lund University,Lunds universitet,Thoraxkirurgi,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Thoracic Surgery,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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Haisty, W K (author)
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Bailey, J R (author)
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Roelke, M (author)
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Simonson, J (author)
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Englund, J (author)
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Farges, E (author)
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Compton, S (author)
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- English.
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In: Heart Rhythm. - : Elsevier BV. - 1547-5271. ; 2:11, s. 1203-1210
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http://dx.doi.org/10...
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Abstract
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- BACKGROUND The Medtronic EnPulse (TM) pacemaker incorporates the new atrial capture management (ACM) algorithm to automatically measure atrial capture thresholds and subsequently manage atrial pacing outputs. OBJECTIVES The purpose of this study was to evaluate the clinical performance of ACM. METHODS Two hundred patients with an indication for a dual-chamber pacemaker underwent implantation. ACM thresholds and manually measured atrial pacing thresholds were assessed at follow-up visits. Clinical equivalence was defined as the ACM-measured threshold being within -0.25 V to +0.5 V of the manually measured threshold. The clinician analyzed all ACM measurements performed in-office for evidence of proarrhythmia. RESULTS All 200 implanted patients had a 1-month visit, and validated manual and in-office ACM threshold data were available for 123 patients. The ACM threshold was 0.595 +/- 0.252 V, and the manual threshold was 0.584 +/- 0.233 V. The mean difference was 0.010 V with a 95% confidence interval of (-0.001, 0.021). The mean difference over all visits was 0.011 V. For all patients, the individual threshold differences were within the range of clinical equivalence at all visits. No atrial arrhythmias were observed during 892 ACM tests in 193 patients. CONCLUSION This study demonstrated that the ACM algorithm is safe, accurate, and reliable over time. ACM was demonstrated to be clinically equivalent to the manual atrial threshold test in all patients at 1 month and over the entire follow-up period of up to 6 months. ACM ensures atrial capture, may save time during follow-up, and can be used to manage atrial pacing outputs.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- atrioventricular conduction
- atrial chamber reset
- automatic atrial threshold measurement
- atrial capture management
- atrial threshold
- test
- dual-chamber pacemaker
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Sperzel, J
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Milasinovic, G
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Smith, T W
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Mead, H
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Brandt, Johan
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Haisty, W K
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show more...
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Bailey, J R
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Roelke, M
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Simonson, J
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Englund, J
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Farges, E
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Compton, S
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cardiac and Card ...
- Articles in the publication
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Heart Rhythm
- By the university
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Lund University