Presence of Ineffective Cardiac Resynchronization Therapy Pacing Provides Insights Into Hidden Causes and Therapeutic Targets of Nonresponder.
Introduction: An effective cardiac resynchronization therapy (CRT) algorithm classifies each left ventricular (LV) pace as effective or ineffective based on electrogram morphology. Loss of capture, latency, pseudo‐fusion during sinus rhythm, and rapid ventricular responses due to atrial fibrillation...
| Publicado en: | Journal of Cardiovascular Electrophysiology Vol. 36; no. 5; pp. 925 - 935 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
May2025
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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=185153648&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 185153648 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10453873 GSB jtl: Journal of Cardiovascular Electrophysiology issn: 10453873 maglogo: Y pubinfo: dt: May2025 vid: 36 iid: 5 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 185153648 183808942 185153648 185153648 10.1111/jce.16605 185153648 ppf: 925 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: C – @attributes: type: P tig: atl: Presence of Ineffective Cardiac Resynchronization Therapy Pacing Provides Insights Into Hidden Causes and Therapeutic Targets of Nonresponder. aug: au: Oka, Satoshi Ueda, Nobuhiko Wada, Mitsuru Ishibashi, Kohei Nakamura, Toshihiro Miyazaki, Yuichiro Wakamiya, Akinori Kanzaki, Hideaki Izumi, Chisato Kusano, Kengo affil: Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan sug: subj: Cardiac Resynchronization Therapy Cardiac Pacing, Artificial Utilization Heart Failure Therapy Human Funding Source Male Female Algorithms Descriptive Statistics Confidence Intervals Odds Ratio T-Tests Mann-Whitney U Test Fisher's Exact Test Univariate Statistics Cox Proportional Hazards Model Logistic Regression Data Analysis Software Japan Male Female ab: Introduction: An effective cardiac resynchronization therapy (CRT) algorithm classifies each left ventricular (LV) pace as effective or ineffective based on electrogram morphology. Loss of capture, latency, pseudo‐fusion during sinus rhythm, and rapid ventricular responses due to atrial fibrillation (AF) and premature ventricular conductions (PVCs) are potential causes of ineffective CRT pacing. However, little is known about the relationship between percentage of ineffective CRT pacing (%i‐CRT) and CRT response. Methods and Results: Among 136 consecutive CRT recipients, we evaluated 44 patients with an effective CRT algorithm. The primary outcome was the prevalence of CRT responders, defined as a reduction in the LV end‐systolic volume by ≥ 10% 6 months after implantation. The median values of percent ventricular pacing and %i‐CRT were 97.5% (interquartile range [IQR]: 96.4%–98.3%) and 0.3% (IQR: 0.1%–1.0%), respectively. Patients in the highest quartile of %i‐CRT (%i‐CRT ≥ 1%) showed a significantly lower prevalence of CRT responders (4 [36.4%] vs. 28 [84.8%], p = 0.004) than the remaining quartiles. The univariate analysis showed that %i‐CRT ≥ 1% was negatively associated with the CRT response (odds ratio: 0.10, 95% confidence interval: 0.02–0.48). The most frequent cause of ineffective pacing was rapid ventricular responses due to AF and/or PVCs, whereas the cause of the highest %i‐CRT in this cohort was latency. A total of three nonresponders with a high %i‐CRT showed favorable responses after therapeutic interventions for their hidden causes. Conclusion: High %i‐CRT could be associated with an unfavorable CRT response and provide insights into hidden causes and therapeutic targets. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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