Transient R-wave amplitude attenuation owing to air entrapment during extravascular implantable cardioverter-defibrillator implantation: Delayed reassessment as a potential bail-out strategy
Key Teaching Points Air entrapment in the substernal space may transiently reduce R-wave sensing during EV-ICD implantation. In this setting, R-wave sensing and defibrillation testing failure may resolve spontaneously as the entrapped air dissipates over time. In borderline cases, delayed reassessment, rather than immediate system revision, may be a feasible and appropriate strategy when air entrapment is involved.
Authors
- Nobuhiko Ueda (ORCID: https://orcid.org/0000-0002-7862-3967)
- Satoshi Oka (ORCID: https://orcid.org/0000-0001-6257-1421)
- Kohei Ishibashi
- KENGO FUKUSHIMA KUSANO (ORCID: https://orcid.org/0000-0002-5760-9285)
- Tomonobu Yanase (ORCID: https://orcid.org/0000-0002-8235-8000)
- Mitsuru Wada (ORCID: https://orcid.org/0000-0002-2300-7518)
Institutions
- National Cerebral and Cardiovascular Center (JP)
Publication Details
- Journal
- HeartRhythm Case Reports
- Published
- 2025-11-08
- DOI
- https://doi.org/10.1016/j.hrcr.2025.10.045
- Primary Topic
- Cardiac pacing and defibrillation studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00