Artikel ; Online: Aveir VR real-world performance and chronic pacing threshold prediction using mapping and fixation electrical data.
2024 Band 26, Heft 3
Abstract: Aims: Aveir VR performance and predictors for its pacing threshold (PCT) in a real-world cohort were investigated.: Methods: Electrical measurements at various stages of an Aveir VR implant were prospectively collected. Predictors for 3-month PCT ... ...
| Abstract | Aims: Aveir VR performance and predictors for its pacing threshold (PCT) in a real-world cohort were investigated. Methods: Electrical measurements at various stages of an Aveir VR implant were prospectively collected. Predictors for 3-month PCT were studied. A retrospective cohort of consecutive 139 Micra implants was used to compare the PCT evolution. High PCT was defined as ≥1.5 V, using a pulse width of 0.4 ms for Aveir and 0.24 ms for Micra. Excellent PCT was defined as ≤0.5 V at the respective pulse width. Results: Among the 123 consecutive Aveir VR implant attempts, 122 (99.2%) were successful. The majority were of advanced age (mean 79.7) and small body size (mean BSA 1.60). Two patients (1.6%) experienced complications, including one pericardial effusion after device reposition and one intraoperative device dislodgement. Eighty-eight patients reached a 3-month follow-up. Aveir 3-month PCT was correlated with impedance at mapping (P = 0.015), tether mode (P < 0.001), end-of-procedure (P < 0.001), and mapping PCT (P = 0.035), but not with PCTs after fixation (P > 0.05). Tether mode impedance >470 ohms had 88% sensitivity and 71% specificity in predicting excellent 3-month PCT. Although it is more common for Aveir to have high PCT at end of procedure (11.5% for Aveir and 2.2% for Micra, P = 0.004), the rate at 3 months was similar (2.3% for Aveir and 3.1% for Micra, P = 1.000). Conclusion: Aveir VR demonstrated satisfactory performance in this high-risk cohort. Pacing thresholds tend to improve to a greater extent than Micra after implantation. The PCT after fixation, even after a waiting period, has limited predictive value for the chronic threshold. Low-mapping PCT and high intraoperative impedance predict chronic low PCT. |
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| Mesh-Begriff(e) | Humans ; Pacemaker, Artificial ; Treatment Outcome ; Retrospective Studies ; Equipment Design ; Virtual Reality ; Cardiac Pacing, Artificial/adverse effects ; Cardiac Pacing, Artificial/methods |
| Sprache | Englisch |
| Erscheinungsdatum | 2024-03-08 |
| Erscheinungsland | England |
| Dokumenttyp | Journal Article |
| ZDB-ID | 1449879-0 |
| ISSN | 1532-2092 ; 1099-5129 |
| ISSN (online) | 1532-2092 |
| ISSN | 1099-5129 |
| DOI | 10.1093/europace/euae051 |
| Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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