scholarly journals Incidence, Predictors and Clinical Impact of Ventricular Electrical Storm in Arrhythmogenic Cardiomyopathy Patients with an Implantable Cardioverter–Defibrillator: A Single-Center Report with Medium-Term Follow-Up

2021 ◽  
Vol Volume 14 ◽  
pp. 10055-10063
Author(s):  
Lin Zhai ◽  
Yiran Hu ◽  
Xiang Li ◽  
Xuan Zhang ◽  
Zhe Gu ◽  
...  
Keyword(s):  
Implantable Cardioverter Defibrillator ◽  
Clinical Impact ◽  
Electrical Storm ◽  
Single Center ◽  
Arrhythmogenic Cardiomyopathy ◽  
Medium Term ◽  
Cardioverter Defibrillator ◽  
Center Report

scholarly journals Small left ventricular size predicts implantable cardioverter defibrillator therapy in long-term observation of patients with left ventricular assist device for non-ischemic cardiomyopathy

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
M Nakao ◽  
M Watanabe ◽  
T Koizumi ◽  
T Kadosaka ◽  
T Koya ◽  
...  
Keyword(s):  
Heart Failure ◽  
Implantable Cardioverter Defibrillator ◽  
Ischemic Cardiomyopathy ◽  
Left Ventricular ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Electrical Storm ◽  
Cardioverter Defibrillator ◽  
Long Term Follow Up

Abstract Funding Acknowledgements Type of funding sources: None. Background  The number of patients who received left ventricular assisted device (LVAD) implantation because of end-stage heart failure has been increasing. In those patients, ventricular arrhythmias (VAs) occur commonly, and electrical storm (ES) and shock therapies by implantable cardioverter-defibrillator (ICD) are considered to increase mortality. Although it is important to identify patients with higher risk of VA events, there have been limited data reporting the risk of VAs in LVAD patients during long-term follow up, especially in non-ischemic cardiomyopathy (NICM). Purpose  We sought to clarify the predictors of ICD therapies in LVAD patients diagnosed as NICM during long-term follow up. Methods We retrospectively analyzed non-ischemic heart failure patients whom a continuous flow LVAD was implanted as a bridge to transplantation therapy from July 2011 to February 2019. ICD programming was generally set as follows; one zone setting (VF zone with maximum shocks) for primary prevention or two zone setting (VF with maximum shocks and VT with ATPs and shocks) for secondary prevention. ICD settings were generally unchanged after LVAD implantation. Clinical and echocardiographic data were collected before and 3 months after LVAD implantation. Device interrogation was performed every 4 - 6 months at out-patient clinic. Patients were followed until May 2019. Results A total of 25 patients were included in the study. The mean age was 49 years, 88% were men. They majority of patients (52%) were diagnosed as idiopathic dilated cardiomyopathy. During the median follow up duration of 889 days (IQR 546 – 2070), 27 appropriate shock events occurred in 7 patients and 154 appropriate ATP-only events in 10 patients. The group with appropriate ICD event (11 patients, 44%) had significantly smaller LVDd (65.2 ± 4.0 vs. 79.4 ± 3.5 mm; p = 0.01) and higher LVEF (26.2 ± 1.6 vs. 20.5 ± 1.4 %; p = 0.02) before LVAD implantation. When patients were divided into 2 groups based on the median value (70.0 mm) of LVDd before LVAD implantation (pre LVDd), patients with smaller pre LVDd (≤ 70mm) had significantly higher rate of appropriate ICD treatment than those with larger pre LVDd (> 70 mm) (Log-rank p < 0.01). In univariate cox regression analysis, pre LVDd was negatively associated with appropriate ICD therapy (hazard ratio 0.94, 95% confidence interval 0.88 - 0.99; p = 0.02). Conclusion Smaller LVDd before LVAD implantation might be a possible predictor of appropriate ICD treatment in patients with NICM. Abstract Figure.

Long-term follow-up of Chagas heart disease patients receiving an implantable cardioverter-defibrillator for secondary prevention

2018 ◽  
Vol 41 (6) ◽  
pp. 583-588 ◽  
Author(s):  
Maria Licia Ribeiro Cury Pavão ◽  
Elerson Arfelli ◽  
Adilson Scorzoni-Filho ◽  
Anis Rassi ◽  
Antônio Pazin-Filho ◽  
...  
Keyword(s):  
Heart Disease ◽  
Secondary Prevention ◽  
Implantable Cardioverter Defibrillator ◽  
Cardioverter Defibrillator ◽  
Long Term Follow Up ◽  
Chagas Heart Disease

scholarly journals B-PO04-064 A PROSPECTIVE EVALUATION OF SUBCUTANEOUS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR INFECTIONS WITH MID TERM FOLLOW-UP

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S304-S305
Author(s):  
Michael R. Gold ◽  
Mark P. Miller ◽  
Johan D. Aasbo ◽  
Raul Weiss ◽  
Martin C. Burke ◽  
...  
Keyword(s):  
Implantable Cardioverter Defibrillator ◽  
Prospective Evaluation ◽  
Cardioverter Defibrillator

Abstract 5700: Worsening Renal Function and Arrhythmic Event in Implantable Cardioverter Defibrillator Patients with Nonischemic Heart Failure

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Atsushi Takahashi ◽  
Tsuyoshi Shiga ◽  
Daigo Yagishita ◽  
Keisuke Futagawa ◽  
Naoki Serizawa ◽  
...  
Keyword(s):  
Heart Failure ◽  
Renal Function ◽  
Renal Dysfunction ◽  
Implantable Cardioverter Defibrillator ◽  
Shock Therapy ◽  
Electrical Storm ◽  
Icd Implantation ◽  
Cardioverter Defibrillator ◽  
Arrhythmic Event ◽  
Icd Shock

Purpose: Implantable Cardioverter Defibrillator (ICD) prevents sudden cardiac death in high risk patients with heart failure (HF). Worsening renal function (WRF) is associated with mortality in patients with myocardial infarction or HF, but its effect on lethal arrhythmia is unknown. We evaluated the influence of WRF on the occurrence of arrhythmic events in patients with nonischemic HF and ICD. Methods: A total of 286 nonischemic HF patients who underwent ICD implantation between 1990 and 2007 were studied. Estimated Glomerular Filtration Rate (eGFR) was calculated using the Modification of Diet in Renal Disease. Renal dysfunction was defined as eGFR <60mL/min/1.73m 2 and WRF was defined as 15mL/min/1.73m 2 per year. Differences in arrhythmia recurrences according to the eGFR and WRF were compared by Kaplan-Meier survival curves. Results: During a mean follow-up time of 2.2+/−1.0 years, 94 (33%) of 286 patients (mean age; 57+/−15 years, 72% male) experienced appropriate ICD shock therapy. There was a significantly higher cumulative rate of appropriate ICD shock therapy (p<0.05) and electrical storm (p<0.05) in patients with renal dysfunction than others. The patients with renal dysfunction at baseline experience WRF more frequently than other patients (53% vs. 23%, respectively, p<0.01). After correcting for age, sex, left ventricular ejection fraction (LVEF), indication for ICD implantation, and use of beta-blockers in a Cox regression model, WRF was still an independent predictor of the time to first appropriate shock (HR 2.21, 95% CI 1.32–3.69, p<0.05) and electrical storm (HR 2.22, 95% CI 1.19 – 4.13, p<0.05). The result of subgroup analysis of 147 patients with low LVEF (LVEF<35%) indicated that the patients with WRF experienced electrical storms more frequently (p<0.05). Conclusion: WRF is associated with increased rate of arrhythmic event in nonischemic HF patients. Especially, those patients with low LVEF and WRF experience more frequent ICD shocks.

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