Limitations of the AutoCapture  Pacing System in patients with cardiac stimulation devices

Bénézet-Mazuecos, Juan; Iglesias, José Antonio; Rubio, José M.; Cortés, Marcelino; Cruz, Elena de la; Vieja, Juan José de la; Calle, Soraya; Farré, Jerónimo

doi:10.1093/europace/euu080

Cited by 10 publications

(9 citation statements)

References 12 publications

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“…If a patient's intrinsic heart rate is higher than the basic pacing rate or there is fusion between paced beats and the patient's intrinsic rhythm, automatic threshold measurements by AutoCapture may not be possible or reliable. 16 AutoCapture is, therefore, less likely to function when patients are mostly in their own intrinsic rhythm as was the case for two of our patients. With Capture Management, precise threshold measurements are not given >2.5 V. AutoCapture may, therefore, be more suitable for those who have higher pacing thresholds, as AutoCapture not only provides threshold measurements up to 3.875 V, it also runs the output at 0.25 V above the threshold, thereby preserving battery life.…”

Section: Discussionmentioning

confidence: 64%

Virtual clinics for follow-up of pacemakers and implantable cardioverter defibrillators in children

et al. 2019

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There is growing interest in the use of digital medicine to reduce the need for traditional outpatient follow-up. Remote interrogation of pacemakers and implantable cardioverter defibrillators is now possible with most devices. The aim of our study was to evaluate the safety and efficacy of virtual pacing clinics in following up children with pacemakers and implantable cardioverter defibrillators, including epicardial systems.Methods:The study was retrospective over 8 years (2010–2017), with review of patient records and analysis of downloads from the implantable cardiac devices to the virtual clinics.Results:A total of 75 patients were set up for virtual clinic follow-up during the study period, 94.5% with a pacemaker and 5.5% an implantable cardioverter defibrillator. The majority (76.8%) had an epicardial system. Data on lead impedance, battery longevity, programmed parameters, detected arrhythmias, percentage pacing and delivered defibrillator therapies were obtainable by download. Lead threshold measurements were obtainable via download in 83.7% of the devices, including epicardial systems. No concerning device issue was missed. In 15% of patients a major issue was detected remotely, including three patients with lead fractures. The virtual clinics resulted in fewer hospital attendances while enhancing monitoring and enabling more frequent device checks. The vast majority (91.4%) of families who responded to a questionnaire were satisfied with the virtual clinic follow-up.Conclusions:Virtual clinics allow safe and effective follow-up of children with pacemakers and implantable cardioverter defibrillators, including those with epicardial systems and are associated with high levels of parent satisfaction.

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Section: Discussionmentioning

confidence: 64%

Virtual clinics for follow-up of pacemakers and implantable cardioverter defibrillators in children

et al. 2019

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“…'s[8] study, the estimated projected longevity was significantly extended with automatic ventricular threshold assessment and adjustment of amplitude with a St. Jude autocapture system, especially for patients with high stimulation (output over 2.5 V) or high percentage of ventricular stimulation. With another autocapture system of Biotronik pacemaker, Biffi et al .…”

Section: Discussionmentioning

confidence: 99%

Feasibility of Atrial AutoCapture™ to Detect Atrial Evoked Response

Qin

Zhao

et al. 2017

Chinese Medical Journal

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Background:Atrial AutoCapture™ (ACap™) was a new technological development that confirmed atrial capture by analyzing evoked response (ER) with a new method – paced depolarization integral ER detection – and optimized energy output to changes in the stimulation threshold. The purpose of this study was to evaluate the clinical performance of ACap™ function.Methods:This was a prospective, observational, nonrandomized two-center study. Between November 2008 and August 2014, 102 patients were enrolled from two different institutions. Data were collected by case report forms at enrollment, hospital discharge, and in-office follow-ups scheduled at 1, 2, 3, 6, and 12 months postimplantation.Results:Ambulatory ACap™ function started to become available for 20.6% of patients at 1 day, then progressed to 30.4% at 7 days, 38.6% at 1 month, 41.6% at 2 months, 47.5% at 3 months, 53.5% at 6 months, and 63.4% at 1 year. The cause of the unsuccessful attempts to perform ACap™ threshold was ER/polarization <2:1. Availability for SD, BND, and HOCM indications had shown better results than AVB indication. For SD indication cases, feasibility was significantly better for SD with paroxysmal atrial fibrillation (pAF) than SD without pAF (78.4% vs. 35.0% at 1 year, n = 71, P < 0.001). At each stage of the clinical follow-ups, there had been a strict correlation between ACap™ measurements and those conducted manually with P < 0.001 (n = 299).Conclusions:It has been concluded that ACap™ function was safe and effective to confirm atrial threshold and reduce energy output automatically. ACap™ function is unavailable for some patients at early stages of the implantation; however, availability has been progressively increasing during follow-up.

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“…The AutoCapture algorithm of St Jude is a unique feature that verifies the capture of every ventricular paced complex and responds by giving a back-up pulse of high output when no myocardial depolarization is detected within the 15–62.5 ms detection window following the pacing spike, thereby increasing the patient safety [ 1 , 3 ]. The evoked response detection system in this pacemaker model is either the DMax algorithm in unipolar stimulation (as in this case) or the PDI algorithm in bipolar stimulation.…”

Section: Commentarymentioning

confidence: 99%

Two pacing spikes on the T wave in a single-chamber pacemaker: What is the mechanism?

Sundaram

Namboodiri

Ajitkumar

et al. 2022

Indian Pacing and Electrophysiology Journal

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Limitations of the AutoCapture Pacing System in patients with cardiac stimulation devices

Cited by 10 publications

References 12 publications

Virtual clinics for follow-up of pacemakers and implantable cardioverter defibrillators in children

Virtual clinics for follow-up of pacemakers and implantable cardioverter defibrillators in children

Feasibility of Atrial AutoCapture™ to Detect Atrial Evoked Response

Two pacing spikes on the T wave in a single-chamber pacemaker: What is the mechanism?

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