Comparative three-year performance of chronic atrial sensing among eight different VDD systems

Chiladakis, John; Patsouras, Nikolaos; Agelopoulos, George; Nikolopoulos, Nikolaos; Manolis, Antonis S.

doi:10.1016/s0002-9149(02)02310-x

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…Second, most devices initially programmed to VDD mode (93.8%) were still programmed in a VDD mode at last follow‐up, suggesting that AVS pacing works effectively in patients in sinus rhythm. This is similar to previous reports on leaded VDD pacing systems where maintenance rates of VDD mode were 80.5%−99% over a mean follow‐up of 1−3 years 7–10 . Third, the median projected battery longevity of the Micra AV device is 10.9 years decreasing to 9.6 years in patients with >90% VP.…”

Section: Discussionsupporting

confidence: 88%

“…This is similar to previous reports on leaded VDD pacing systems where maintenance rates of VDD mode were 80.5%−99% over a mean follow‐up of 1−3 years. 7 , 8 , 9 , 10 Third, the median projected battery longevity of the Micra AV device is 10.9 years decreasing to 9.6 years in patients with >90% VP. Although the observed %AM‐VP in patients with >90% VP in the CareLink data set was lower than the MARVEL 2 data (74.7% vs. 79.1%, respectively) it is important to note that the MARVEL 2 data were collected in‐clinic during a 20 min rest period and during a series of postural maneuvers, whereas the CareLink data were continuously sampled and represent a correlate of ambulatory AVS.…”

Section: Discussionmentioning

confidence: 99%

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Correlation between AV synchrony and device collected AM‐VP sequence counter in atrioventricular synchronous leadless pacemakers: A real‐world assessment

Garweg¹,

Piccini

Epstein

et al. 2022

Cardiovasc electrophysiol

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Introduction: Micra atrioventricular (AV) provides leadless atrioventricular synchronous pacing by sensing atrial contraction (A4 signal). Real-world operation and reliability of AV synchrony (AVS) assessment using device data have not been described. The purposes of this study were to (1) assess the correlation between AVS and atrial mechanical sensed-ventricular pacing (AM-VP) percentages in patients with permanent high-degree AV block and (2) report on the real-world effectiveness of Micra AV. Methods:The correlation between ECG-determined AVS in-clinic and devicecollected %AM-VP was assessed using data from 40 patients with high-degree AV block enrolled in the Micra Atrial tRacking using a Ventricular AccELerometer (MAR-VEL) 2 study. A retrospective analysis to assess continuously-sampled %AM-VP since last session, device programming, and electrical parameters was performed using Micra AV transmissions from the Medtronic CareLink database. Patients with transmissions ≥180 days postimplant were included.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Correlation between AV synchrony and device collected AM‐VP sequence counter in atrioventricular synchronous leadless pacemakers: A real‐world assessment

Garweg¹,

Piccini

Epstein

et al. 2022

Cardiovasc electrophysiol

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“…This observation extends the current experience with VDD pacing to a certainly less selected patient population (26% of all patients in our hospital received a VDD pacemaker during the study period) and to a substantially longer follow-up period than previously described. In several studies [6][7][8][9][10][11][12] maintenance rates of the VDD mode were 80.5 to 99% with a mean follow-up of 1 to 3 years. There was no significant reduction in atrial signal amplitude during long-term follow-up (pwave amplitude of 0.92 ± 0.87 mV after implantation and 0.81 ± 0.91 mV after 8 years).…”

Section: Discussionmentioning

confidence: 99%

“…The limitation of previous studies that evaluated VDD pacing in patients with higher-degree AV block and normal sinus node function [6][7][8][9][10][11][12] was mainly their relatively short International Journal of Cardiology 122 (2007) 239 -243 www.elsevier.com/locate/ijcard follow-up, which probably has underestimated the incidence of atrial fibrillation (AF) and secondary sinus node dysfunction. Therefore, we aimed to assess the long-term performance of VDD pacing in a consecutive series of patients who had a VDD pacemaker implanted at our center over a ten year period.…”

Section: Introductionmentioning

confidence: 99%

Value of VDD-pacing systems in patients with atrioventricular block: Experience over a decade

Schaer¹,

Weinbacher²,

Zellweger

et al. 2007

International Journal of Cardiology

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“…The VDD single pass lead pacing system is an alternative to the DDD pacemaker in patients with atrioventricular (AV) block and chronotropic competence of the sinus node 1‐4 . However, the atrial signal amplitude can vary considerably because the atrial sensing poles in the single lead electrode are floating 5,6 .…”

Section: Introductionmentioning

confidence: 99%

Can Chest Roentgenogram Predict the Posture Dependent Changes of Atrial Sensing Performance in Patients with a VDD Pacemaker?

Choi

Nam

Kim

et al. 2004

Pacing Clinical Electrophis

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The VDD pacemaker is useful for sequential pacing with a single lead but carries a risk of sensing failure. This study was designed to evaluate the relationship between the relative position of atrial lead and atrial sensitivity in different postures in patients with VDD pacemakers. Atrial sensitivity determination and chest roentgenography was performed in the supine and standing position 3 months after implantation in 25 patients with VDD pacemakers. Measurements of cardiac longitudinal length (from the top of the aortic arch to the diaphragm) and distances from the floating electrode to the upper margin of the seventh thoracic vertebra (D-T7), to the top of the aortic arch (D-knob), to the lateral wall of right atrium (D-wall), and the D-knob/cardiac longitudinal length (D-Ratio) were performed. Atrial signal amplitude decreased with the standing compared to the supine position in eight patients (group I) and increased or did not change in the other 17 patients (group II). In group I, the change of the D-ratio was greater (0.073 vs 0.035, P < 0.01), and the change of the cardiac longitudinal length with standing position was greater (18.4 +/- 7.3 vs 12.1 +/- 8.8 mm, P < 0.05) than in group II. The change of atrial sensitivity was related to the change of the atrial electrode position with different postures. Decreased atrial-sensed amplitude was observed in patients who had a greater change in the cardiac longitudinal length while standing. Thus, a decrease in atrial sensitivity with standing may be predicted by the positional changes of the cardiac silhouette on roentgenography before the procedure.

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Comparative three-year performance of chronic atrial sensing among eight different VDD systems

Cited by 6 publications

References 18 publications

Correlation between AV synchrony and device collected AM‐VP sequence counter in atrioventricular synchronous leadless pacemakers: A real‐world assessment

Correlation between AV synchrony and device collected AM‐VP sequence counter in atrioventricular synchronous leadless pacemakers: A real‐world assessment

Value of VDD-pacing systems in patients with atrioventricular block: Experience over a decade

Can Chest Roentgenogram Predict the Posture Dependent Changes of Atrial Sensing Performance in Patients with a VDD Pacemaker?

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