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Khanra D, Manivannan S, Mukherjee A, Deshpande S, Gupta A, Rashid W, Abdalla A, Patel P, Padmanabhan D, Basu-Ray I. Incidence and Predictors of Implantable Cardioverter-defibrillator Therapies After Generator Replacement-A Pooled Analysis of 31,640 Patients' Data. J Innov Card Rhythm Manag 2022; 13:5278-5293. [PMID: 37293556 PMCID: PMC10246925 DOI: 10.19102/icrm.2022.13121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/28/2022] [Indexed: 02/16/2024] Open
Abstract
Among primary prevention implantable cardioverter-defibrillator (ICD) recipients, 75% do not experience any appropriate ICD therapies during their lifetime, and nearly 25% have improvements in their left ventricular ejection fraction (LVEF) during the lifespan of their first generator. The practice guidelines concerning this subgroup's clinical need for generator replacement (GR) remain unclear. We conducted a proportional meta-analysis to determine the incidence and predictors of ICD therapies after GR and compared this to the immediate and long-term complications. A systematic review of existing literature on ICD GR was performed. Selected studies were critically appraised using the Newcastle-Ottawa scale. Outcomes data were analyzed by random-effects modeling using R (R Foundation for Statistical Computing, Vienna, Austria), and covariate analyses were conducted using the restricted maximum likelihood function. A total of 31,640 patients across 20 studies were included in the meta-analysis with a median (range) follow-up of 2.9 (1.2-8.1) years. The incidences of total therapies, appropriate shocks, and anti-tachycardia pacing post-GR were approximately 8, 4, and 5 per 100 patient-years, respectively, corresponding to 22%, 12%, and 12% of patients of the total cohort, with a high level of heterogeneity across the studies. Greater anti-arrhythmic drug use and previous shocks were associated with ICD therapies post-GR. The all-cause mortality was approximately 6 per 100 patient-years, corresponding to 17% of the cohort. Diabetes mellitus, atrial fibrillation, ischemic cardiomyopathy, and the use of digoxin were predictors of all-cause mortality in the univariate analysis; however, none of these were found to be significant predictors in the multivariate analysis. The incidences of inappropriate shocks and other procedural complications were 2 and 2 per 100 patient-years, respectively, which corresponded to 6% and 4% of the entire cohort. Patients undergoing ICD GR continue to require therapy in a significant proportion of cases without any correlation with an improvement in LVEF. Further prospective studies are necessary to risk-stratify ICD patients undergoing GR.
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Affiliation(s)
| | | | | | - Saurabh Deshpande
- Sri Jayadeva Institute of Cardiac Sciences and Research, Bengaluru, India
| | - Anunay Gupta
- Vardhman Mahavir Medical College, and Safdarjung Hospital, New Delhi, India
| | | | - Ahmed Abdalla
- Manchester University NHS Foundation Trust, Manchester, UK
| | - Peysh Patel
- Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Deepak Padmanabhan
- Sri Jayadeva Institute of Cardiac Sciences and Research, Bengaluru, India
| | - Indranill Basu-Ray
- Cardiovascular Research, Memphis Veteran Administration Hospital, Memphis, TN, USA
- School of Public Health, The University of Memphis, Memphis TN, USA
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Yuyun MF, Erqou SA, Peralta AO, Hoffmeister PS, Yarmohammadi H, Echouffo-Tcheugui JB, Martin DT, Joseph J, Singh JP. Ongoing Risk of Ventricular Arrhythmias and All-Cause Mortality at Implantable Cardioverter Defibrillator Generator Change: A Systematic Review and Meta-Analysis. Circ Arrhythm Electrophysiol 2021; 14:e009139. [PMID: 33554611 DOI: 10.1161/circep.120.009139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Matthew F Yuyun
- VA Boston Healthcare System (M.F.Y., A.O.P., P.S.H., J.J.), MA.,Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Boston University School of Medicine (M.F.Y., A.O.P., P.S.H.), MA
| | - Sebhat A Erqou
- Brown University (S.A.E.), RI.,Providence VA Medical Center (S.A.E.), RI
| | - Adelqui O Peralta
- VA Boston Healthcare System (M.F.Y., A.O.P., P.S.H., J.J.), MA.,Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Boston University School of Medicine (M.F.Y., A.O.P., P.S.H.), MA
| | - Peter S Hoffmeister
- VA Boston Healthcare System (M.F.Y., A.O.P., P.S.H., J.J.), MA.,Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Boston University School of Medicine (M.F.Y., A.O.P., P.S.H.), MA
| | - Hirad Yarmohammadi
- Division of Cardiology, Department of Medicine, Columbia University, New York (H.Y.)
| | | | - David T Martin
- Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Brigham and Women's Hospital (D.T.M., J.J.), Boston
| | - Jacob Joseph
- VA Boston Healthcare System (M.F.Y., A.O.P., P.S.H., J.J.), MA.,Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Brigham and Women's Hospital (D.T.M., J.J.), Boston
| | - Jagmeet P Singh
- Harvard Medical School (M.F.Y., A.O.P., P.S.H., D.T.M., J.J., J.P.S.), MA.,Massachusetts General Hospital (J.P.S.), Boston
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Incidence of appropriate anti-tachycardia therapies after elective generator replacement in patient with heart failure initially implanted with a defibrillator for primary prevention: Results of a meta-analysis. Int J Cardiol 2019; 283:122-127. [DOI: 10.1016/j.ijcard.2018.12.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/16/2018] [Accepted: 12/24/2018] [Indexed: 11/20/2022]
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Rajabali A, Badhwar N. In sickness and in health, till death do us part: Is the ICD a lifelong commitment? Indian Pacing Electrophysiol J 2017; 17:27-28. [PMID: 29072988 PMCID: PMC5405742 DOI: 10.1016/j.ipej.2017.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The decision-making process around initial implantation of an Implantable Cardioverter Defibrillator (ICD) is well studied, guided by randomized clinical trials which have translated into widely accepted clinical guidelines. For patients who out-live their first device and are eligible for a generator exchange (GE) the indications to replace the battery is much less well-defined. In this latter case, the clinician needs to make the decision based on persistent indications for primary prevention ICD, risk of future arrhythmic death in the absence of ongoing indications for primary prevention, competing causes of non-arrhythmic death and the patient's overall goals of care.
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Affiliation(s)
- A Rajabali
- Cardiac Electrophysiology and Arrhythmia Service, UCSF Medical Centre, San Francisco, CA 94143, United States
| | - N Badhwar
- Cardiac Electrophysiology and Arrhythmia Service, UCSF Medical Centre, San Francisco, CA 94143, United States.
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