| Autor: |
Takahiro Hakamata, Sou Otsuki, Daisuke Izumi, Yuta Sakaguchi, Naomasa Suzuki, Yasuhiro Ikami, Yuki Hasegawa, Nobue Yagihara, Kenichi Iijima, Masaomi Chinushi, Koichi Fuse, Takayuki Inomata |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Heart Rhythm. 19:1704-1711 |
| ISSN: |
1547-5271 |
| DOI: |
10.1016/j.hrthm.2022.05.037 |
| Popis: |
Inappropriate shocks delivered by subcutaneous implantable cardioverter-defibrillators (S-ICDs) are most frequently caused by cardiac oversensing. However, the predictors for oversensing of S-ICD remain unclear.We aimed to investigate the predictors for oversensing of S-ICD, especially clinical impact of an electrocardiographic (ECG) change.We retrospectively enrolled 99 consecutive patients who underwent S-ICD implantation between 2013 and 2021. Oversensing events were defined as inappropriate charge of the capacitors induced by cardiac or noncardiac signals other than tachycardia.During a median follow-up period of 34 months (interquartile range 20-50 months), 11 of 99 patients (11%) experienced 34 oversensing events and 4 patients (4%) received inappropriate shocks during their events. Six patients exhibited ECG changes (bundle branch block, 3; ventricular pacing, 1; inverted T wave, 1; poor R-wave progression, 1) during the follow-up period. Oversensing events were observed in 4 of 6 patients with ECG change (67%), and 3 patients underwent S-ICD removal because of inevitable shock. Contrastingly, of the remaining patients without ECG change, all 7 patients who experienced oversensing events could continue using S-ICD with the reprogramming sensing vector and/or restriction of excessive exercise. Logistic regression analysis showed that lower voltage of Sokolow-Lyon ECG (VUnavoidable oversensing resulting in S-ICD removal is caused by ECG change. Oversensing in patients without ECG change can be managed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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