Low‐energy defibrillation using a base–apex epicardial electrode.
Background: Current implantable cardioverter defibrillators (ICDs) require electric conduction with high voltage and high energy, which can impair cardiac function and induce another malignant arrhythmia. As a result, there has been a demand for an ICD that can effectively operate with lower energy...
| Publicado en: | Pacing & Clinical Electrophysiology Vol. 46; no. 11; pp. 1325 - 1333 |
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| Autores principales: | , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Nov2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=173759871&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 173759871 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Nov2023 vid: 46 iid: 11 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 173759871 172923679 173759871 173759871 10.1111/pace.14832 173759871 ppf: 1325 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: C – @attributes: type: P tig: atl: Low‐energy defibrillation using a base–apex epicardial electrode. aug: au: Okada, Jun‐ichi Washio, Takumi Sugiura, Seiryo Hisada, Toshiaki affil: UT‐Heart Inc., Setagaya‐ku Tokyo,, Japan sug: subj: Defibrillation Electrodes, Implanted Defibrillators, Implantable Electric Injuries Prevention and Control Cardioversion Human Funding Source Heart Physiopathology ab: Background: Current implantable cardioverter defibrillators (ICDs) require electric conduction with high voltage and high energy, which can impair cardiac function and induce another malignant arrhythmia. As a result, there has been a demand for an ICD that can effectively operate with lower energy to mitigate the risks of a strong electric shock. Methods: A pair of sheet‐shaped electrodes covering the heart were analyzed in three configurations (top–bottom, left–right, and front–back) using a heart simulator. We also varied the distance between the two electrodes (clearance) to identify the electrode shape with the lowest defibrillation threshold (DFT). We also investigated the ICD shock waveform, shock direction, and the effect of the backside insulator of the electrode. Results: The DFT was high when the clearance was too small and the DFT was high even when the clearance was too large, suggesting that an optimal value clearance. The top–bottom electrodes with optimal clearance showed the lowest DFT when the biphasic shocks set the top electrode to a high potential first and then the bottom electrode was set to a high potential. An interval between a first shock waveform and a second shock waveform should be provided for low‐energy defibrillation. Because the insulator prevents unnecessary current flow to the backside, the DFT of the electrodes with insulators is less than those without insulators. Conclusion: Painless defibrillation using sheet‐shaped electrodes on the epicardium is predicated on the basis of results using a heart simulator. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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