The treatment gap in patients with chronic systolic heart failure: a systematic review of evidence-based prescribing in practice. We excluded trials of CRT and those that compared the ICD with an antiarrhythmic medication, including amiodarone. We performed 2 sensitivity analyses. Corresponding Author: Sana M. Al-Khatib, MD, MHS, Division of Cardiology, Duke University Medical Center, 2400 Pratt St, Durham, NC 27705 (sana.alkhatib@duke.edu). Administrative, technical, or material support: Bardy. The search yielded 10 studies, of which only 1 met the inclusion criteria. Meaning   S, All rights reserved. 2017;2(6):685–688.  et al; Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT) Investigators. AVatrioventricular 10. Critical revision of the manuscript for important intellectual content: Fonarow, Joglar, Inoue, Mark, Lee, Kadish, Bardy, Sanders. Nonischemic cardiomyopathy is a vague term that does not describe underlying pathology. 10 Several specific diseases of the heart muscle or … ATTRamyloidosis-transthyretin type 9. It’s what you know for sure that just ain’t so.  P.  Implantable cardioverter-defibrillator for non ischemic cardiomyopathy: an updated meta-analysis. Chest X-ray. 99mTc-DPD99mTechnetium-3,3-diphosphono-1,2-propanodi-carboxylic acid 3. 1. Primary Prevention Implantable Cardioverter Defibrillators in Patients With Nonischemic Cardiomyopathy: A Meta-analysis. First, 58% of patients in the ICD and the control groups in the DANISH trial received a CRT device. Implantable Cardioverter Defibrillators for Nonischemic Cardiomyopathy, Rahman Shah, MD; Roxanna Sabghi, MD; Mary Dennis, MD, Implantable Cardioverter Defibrillators for Nonischemic Cardiomyopathy—Reply, Sana M. Al-Khatib, MD, MHS; Gregg C. Fonarow, MD; Gillian D. Sanders, PhD. Prophylactic defibrillator implantation in patients with nonischemic dilated cardiomyopathy. In addition, studies had to report on all-cause mortality during a follow-up period of at least 12 months and be published in English.  AE, DiMarco Typically, patients with ischemic cardiomyopathy have a history of acute myocardial infarction, however, it may occur in patients with coronary artery disease, but without a past history of acute myocardial infarction. The primary end point was all-cause mortality. Heart Vessels. In ischaemic cardiomyopathy, ventricular dysfunction is a consequence of myocardial ischaemia and infarction related to coronary arteriosclerosis, while there are many potential causes of non-ischaemic cardiomyopathy (NICM), including haemodynamic pathology, infection, immunologic abnormalities, toxic injury, or genetic factors. Ischemic and non-ischemic cardiomyopathy Wouter van Es, Hans van Heesewijk, Benno Rensing, Jan van der Heijden and Robin Smithuis Radiology and Cardiology department of the St. Antonius Hospital in Nieuwegein and the  DB, Reduction in Mortality From Implantable Cardioverter-Defibrillators in Nonischemic Cardiomyopathy Patients Is Dependent on the Presence of Left Ventricular Scar. Does use of primary prevention implantable cardioverter defibrillators improve survival among patients with nonischemic cardiomyopathy? [Figure][1] It ain’t what you don’t know that gets you into trouble. PubMed was searched from January 1, 2000, through October 31, 2016, for the terms implantable defibrillator OR implantable cardioverter defibrillator AND non-ischemic cardiomyopathy. Clinical Topics: Arrhythmias and Clinical EP, Heart Failure and Cardiomyopathies, Noninvasive Imaging, Prevention, Implantable Devices, SCD/Ventricular Arrhythmias, Atrial Fibrillation/Supraventricular Arrhythmias, Acute Heart Failure, Magnetic Resonance Imaging, Keywords: Arrhythmias, Cardiac, Cardiomyopathies, Cicatrix, Cost-Benefit Analysis, Death, Sudden, Cardiac, Defibrillators, Implantable, Diagnostic Imaging, Gadolinium, Heart Failure, Magnetic Resonance Imaging, Primary Prevention, Secondary Prevention, Stroke Volume. In addition, studies had to report on all-cause mortality during a follow-up period of at least 12 months and be published in English. Finally, the high use of CRT and guideline-directed medical therapy in the DANISH trial likely reduced their statistical power for showing a significant difference in the primary outcome, despite extending the follow-up period to more than 67 months. If your doctor thinks you have cardiomyopathy, you might need to undergo several tests to confirm the diagnosis, including: 1.  A, Dyer  KL, Skiba Four randomized clinical trials met the selection criteria and included 1874 unique patients; 937 were in the ICD group and 937 in the control group.  M, Boczor LVS was assessed by late gadolinium enhancement imaging. However, in the vast majority of cases, the origin is unclear. The results did not change appreciably. In ischemic cardiomyopathy, the heart muscle is damaged as a result of oxygen deprivation caused by restricted bloodflow, while in nonischemic cases, the patient has another medical issue leading to injuries to the … Based on the totality of evidence, our findings support the 2012 guidelines of the American Heart Association, American College of Cardiology Foundation, and Heart Rhythm Society for ICDs.3 The guidelines recommend the use of ICDs in eligible patients with nonischemic cardiomyopathy and a depressed left ventricular ejection fraction. A search of bibliographies of pertinent articles and queries of experts in this field resulted in 3 additional studies: the Cardiomyopathy Trial (CAT),5 the SCD-HeFT (ICD and medical therapy groups of patients with nonischemic cardiomyopathy),2 and the DANISH trial (patients with an ICD and medical therapy without CRT)4 (Figure 1). We will discuss the cardiomyopathies listed in the table on the left. Data Sources  A trend toward reduced all-cause mortality was seen with use of an ICD.1 The Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT)2 showed a significant improvement in the survival of patients with New York Heart Association (NYHA) class II or III heart failure symptoms due to ischemic or nonischemic cardiomyopathy with use of a primary prevention ICD. These findings support professional guidelines that recommend implantable cardioverter defibrillators in patients with nonischemic cardiomyopathy. The primary end point was all-cause mortality. © 2021 American Medical Association. Nonischemic cardiomyopathy is insufficiently descriptive; the nonischemic condition should be specified. JAMA Cardiol. Studies that included an ICD arm, a medical therapy arm, and other comparators were included if data on the ICD and medical therapy arms were reported separately. These findings support professional guidelines that recommend implantable cardioverter defibrillators in patients with nonischemic cardiomyopathy. Our website uses cookies to enhance your experience. Can we rely on Danish? Studies had to have at least 100 patients and to have been published in English from January 1, 2000, through October 31, 2016. Classification of Nonischemic Cardiomyopathy The classification is based on the structural type of muscle defect and mechanism through which the heart’s capacity to pump blood is reduced. Some people with non-ischemic cardiomyopathy can live a normal life, while others’ life is threatened by the … Objective  Additional references were identified from bibliographies of pertinent articles and queries to experts in this field. ARaortic regurgitation 7. BNPbrain natriuretic peptide 12. A search of bibliographies of pertinent articles and queries of experts in this field led to 3 additional studies. The three main types of non-ischemic cardiomyopathy are dilated cardiomyopathy, hypertrophic cardiomyopathy, and restrictive cardiomyopathy. Purpose of review: Non-ischaemic dilated cardiomyopathy (DCM) occurs in 1 in 2500 individuals in the general population and is associated with considerable morbidity and mortality. We searched PubMed using the following search terms: implantable defibrillator OR implantable cardioverter defibrillator AND non-ischemic cardiomyopathy. Inclusion criteria consisted of a randomized clinical trial design and comparison of the ICD with medical therapy (control) in at least 100 patients with nonischemic cardiomyopathy. Although dilated cardiomyopathy (DCM) is far less common than coronary artery disease and arterial hypertension, DCM is the third cause of heart failure (HF). J Am Coll Cardiol 2016;67:2996-3010. Data were pooled using fixed- and random-effects models. Your doctor will conduct a physical examination, take a personal and family medical history, and ask when your symptoms occur — for example, whether exercise brings on your symptoms. © 2021 American Medical Association. Data were pooled using fixed- and random-effects models. The Diagnosis and Evaluation of Dilated Cardiomyopathy. Before data collection started, primary prevention ICDs were hypothesized to reduce all-cause mortality among patients with nonischemic cardiomyopathy. Epstein BPMBeats per minute 13. Pooling data from these trials showed a significant reduction in all-cause mortality with an ICD (hazard ratio, 0.75; 95% CI, 0.61-0.93; Primary prevention ICDs are efficacious at reducing all-cause mortality among patients with nonischemic cardiomyopathy. Privacy Policy| 1 In about 50% of cases, patients are described as having “idiopathic” DCM because an etiologic cause or secondary reason cannot be identified. At present, guidelines recommend the use of an implantable cardioverter-defibrillator (ICD) in patients with NICM with a reduced left ventricular ejection fraction (LVEF) and heart failure (HF) symptoms.  et al; DANISH Investigators. Second, medical therapy in both groups in the DANISH trial was superior to that used in clinical practice.4,6 Third, the DANISH trial is the only trial to date to require an elevated NT pro-BNP level for a patient to qualify for enrollment, and the median level of NT pro-BNP of enrolled patients was 1244 pg/mL in the ICD group and 1110 pg/mL in the medical therapy group (to convert NT pro-BNP to nanograms per liter, multiply by 1.0).4 This finding, along with the older age of patients in the DANISH trial (mean age, 64 years compared with 52-60 years in the other 3 trials), may have led to the inclusion of patients who are more likely to die of non-SCD causes. The results of this study are consistent with these prior studies and suggest that screening for LVS can improve cost-effectiveness by identifying low-risk NICM patients who would not benefit from an ICD, at least during 3 years of follow-up. 2012 ACCF/AHA/HRS focused update incorporated into the ACCF/AHA/HRS 2008 guidelines for device-based therapy of cardiac rhythm abnormalities: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines and the Heart Rhythm Society. Accessibility Statement, Figure 1. AFatrial fibrillation 5. Mortality rates are provided in the Table. CRT indicates cardiac resynchronization therapy; ICD, implantable cardioverter defibrillator. Conflicting data have emerged on the efficacy of implantable cardioverter defibrillators (ICDs) for primary prevention of sudden cardiac death (primary prevention ICDs) in patients with nonischemic cardiomyopathy. DOI: 10.1161/CIR.0000000000000455 December 6, 2016 e581 CLINICAL STATEMENTS AND GUIDELINES treatment, the prognosis of HF Among the patients without LVS, ICD implantation did not significantly affect mortality. All-Cause Mortality in the Individual Trials. GUIDELINES More Cardiomyopathies Considerations ↑ risk of perioperative hemodynamic compromise: CHF, dysrhythmias, emboli, myocardial ischemia Type, etiology & severity of cardiomyopathy… Congenital Heart Disease and Pediatric Cardiology, Invasive Cardiovascular Angiography and Intervention, Pulmonary Hypertension and Venous Thromboembolism, CardioSource Plus for Institutions and Practices, Nuclear Cardiology and Cardiac CT Meeting on Demand, Annual Scientific Session and Related Events, ACC Quality Improvement for Institutions Program, National Cardiovascular Data Registry (NCDR). Køber  G, Arora Primary prevention of sudden cardiac death in idiopathic dilated cardiomyopathy: the Cardiomyopathy Trial (CAT).  H, Bajaj We used the Cochran Q test to examine heterogeneity among the included trials. Introduction Sudden cardiac death (SCD) is a term used to signify an abrupt and unexpected cessation of cardiac activity leading to complete hemodynamic collapse and resulting in the death of the victim. To investigate the association of primary prevention ICDs with all-cause mortality in patients with nonischemic cardiomyopathy. Golwala Nonischemic cardiomyopathy is damage to the heart muscle that is not associated with interruptions to the heart's blood supply, as seen in cases of coronary artery disease. Non-Ischemic cardiomyopathy is a generic term which includes all causes of decreased heart function other than those caused by heart attacks or blockages in the arteries of the heart. Study concept and design: Al-Khatib, Fonarow, Bardy, Sanders. Accepted for Publication: February 3, 2017. Therefore, we used the 1995 Nationwide Inpatient Sample (NIS) to determine discharge rates and test the hypothesis that diabetes is independently associated with ICM. The median duration of follow-up was 37.9 months. Primary prevention ICDs are efficacious at reducing all-cause mortality among patients with nonischemic cardiomyopathy.  D, Antz  KA, Is left ventricular scar (LVS) in patients with nonischemic cardiomyopathy (NICM) a predictor of improved survival after implantation of an implantable cardioverter-defibrillator (ICD)? In this meta-analysis of 4 randomized clinical trials that included 1874 patients with nonischemic cardiomyopathy, use of primary prevention implantable cardioverter defibrillators reduced all-cause mortality by 25%. PRISMA Diagram of the Search for Pertinent Trials, Table.  A, Daubert Author Contributions: Drs Al-Khatib and Inoue had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.  GH, Lee Non-ischemic cardiomyopathy refers to diseases of the heart that are not the result of reduced blood flow but rather caused by other factors such as viral infections. The DANISH trial showed a reduction in SCD but not in all-cause mortality with use of an ICD.4 To better understand the effect of primary prevention ICDs on survival among patients with nonischemic cardiomyopathy, we conducted a meta-analysis of randomized clinical trials on this topic. © 2021 American College of Cardiology Foundation. We found no evidence that time was a modifier of the relationship between use of an ICD and all-cause mortality (P = .53).  JC, It typically affects young adults. The presence of LVS identifies patients with NICM who derive a survival benefit from implantation of an ICD for primary prevention of sudden cardiac death. Another meta-analysis of primary prevention ICDs in patients with nonischemic cardiomyopathy was recently published.7 Compared with that analysis, our approach was more robust at reducing heterogeneity because we included only trials that compared the ICD with optimal medical therapy and excluded trials of CRT and antiarrhythmic medications. CCSCanadian Cardiovascular Society 14. Statins in Nonischemic Cardiomyopathy Abstract & Commentary By Michael H. Crawford, MD, Professor of Medicine, Chief of Clinical Cardiology, University of California, San Francisco.Dr. • Non-Ischemic cardiomyopathy is a generic term which includes all causes of decreased heart function other than those caused by heart attacks or blockages in the arteries of the heart. Pooling data with fixed- and random-effects models from these 4 studies showed a significant reduction in all-cause mortality with use of an ICD (hazard ratio, 0.75; 95% CI, 0.61-0.93; P = .008; P = .87 for heterogeneity) (Figure 2). Among the patients with LVS, ICD implantation was independently associated with a 55% reduction in the risk of death. However, a limitation of our meta-analysis is noteworthy. Clinical Guidelines Full list of clinical guidlines and references for CVD, heart failure, ACS, hypertension, atrial fibrillation, SCAD and RHD... Heart Healthy Dinner Plan Sign up now and discover delicious, easy to follow dinner recipes.  et al. OBJECTIVE —Controversy exists regarding the relation between diabetes and nonischemic idiopathic cardiomyopathy (ICM), and only limited data on the incidence of ICM in adults with diabetes are available. Data from these trials led to the designation of the primary prevention ICD as a class I therapy in patients with NYHA class II or III heart failure symptoms due to nonischemic cardiomyopathy.3. ! Genetics and Other Causes of Dilated Cardiomyopathy DCM presumably represents a final common or toxic pathway that is the end result of myocardial damage caused by different mechanisms. Objective To investigate the association of primary prevention ICDs with all-cause mortality in patients with nonischemic cardiomyopathy. LVS was present in 59% of patients. Findings include data from 4 randomized clinical trials of implantable cardioverter defibrillators (ICDs) in patients with nonischemic cardiomyopathy using fixed- and random-effects models. Bänsch Al-Khatib SM, Fonarow GC, Joglar JA, et al. Nonischemic Cardiomyopathy (NICM) The pathogenesis of NICM with ventricular dilatation and reduced cardiac function in the absence of flow-limiting coronary artery disease (CAD) can be genetic, inflammatory, toxic, or viral. doi:10.1001/jamacardio.2017.0630. Inclusion criteria consisted of a randomized clinical trial design and comparison of the ICD with medical therapy (control) in at least 100 patients with nonischemic cardiomyopathy. Study supervision: Joglar, Bardy, Sanders. P < .05 indicated statistical significance. More granular data on the mode of death from the DANISH trial would be important. Atrial Fibrillation/Supraventricular Arrhythmias, Congenital Heart Disease and     Pediatric Cardiology, Invasive Cardiovascular Angiography    and Intervention, Pulmonary Hypertension and Venous     Thromboembolism. There was not a significant difference in mortality at 3 years between the ICD group (11%) and the patients without an ICD (19%).  KL, Mark After propensity matching, ICDs were not associated with a survival advantage and LVS was associated with a 71% higher risk of mortality. Results  The 4 randomized clinical trials that met our selection criteria included 1874 unique patients with 937 in the ICD group and 937 in the medical therapy (control) group. The recently published Danish Study to Assess the Efficacy of ICDs in Patients With Nonischemic Systolic Heart Failure on Mortality (DANISH trial)4 enrolled patients with NYHA class II or III heart failure symptoms (or NYHA class IV symptoms if cardiac resynchronization therapy [CRT] was planned) with a left ventricular ejection fraction of 35% or less owing to nonischemic cardiomyopathy and an increased level of N-terminal pro–brain natriuretic peptide (NT-proBNP) despite guideline-directed medical therapy. Data Extraction and Synthesis  Conclusions and Relevance  These findings support professional guidelines that recommend the use of ICDs in such patients. Bardy It is the myocardium disease (myocardium are the muscles of heart) in which the myocardium gets thicker, rigid, enlarged and hard and could not function properly leading to heart failure, dyspnea, and fluid retention. 1 Autopsy and clinical studies have shown that the presence of structural heart disease increases the risk of SCD, with coronary heart disease accounting for the majority of cases. A search of bibliographies of pertinent articles and queries of experts in this field led to 3 additional studies. Nonischemic cardiomyopathy of the heart is reminiscent of the term “interstitial infiltrate” on a chest radiograph. The PRISMA guidelines were used to abstract data and assess data quality and validity. Nonischemic cardiomyopathy Symptoms, Causes, Prognosis, Expectancy, Treatment. 2019 Jul;34(7):1196-1202. doi: 10.1007/s00380-018-01337-2. Published Online: March 29, 2017. doi:10.1001/jamacardio.2017.0630. Patients with heart failure due to nonischemic cardiomyopathy are at an increased risk for sudden cardiac death (SCD). 2Dtwo-dimensional 2. Real-world data on patients with nonischemic cardiomyopathy from the German Device Registry. An ICD was implanted in 246 patients. improving cardiac function and reducing heart failure symptoms ACEangiotensin-converting enzyme 4. Kadish  M, Tonkin CAT indicates Cardiomyopathy Trial; DANISH, Danish Study to Assess the Efficacy of ICDs in Patients With Nonischemic Systolic Heart Failure on Mortality; DEFINITE, Defibrillators in Nonischemic Cardiomyopathy Treatment Evaluation; HR, hazard ratio; and SCD-HeFT, Sudden Cardiac Death in Heart Failure Trial. The subjects of this study were 452 patients (mean age 53.4 years) referred for cardiac magnetic resonance (CMR) imaging who had a NICM, LV ejection fraction (LVEF) ≤35% (mean 25.2%), New York Heart Association class II or III, and no history of ventricular tachycardia/fibrillation. Selection criteria included a randomized clinical trial design with ICD vs medical therapy as the comparators and a follow-up of at least 12 months. ARBangiotensin receptor blocker 8. The following are key points to remember from this review article about the diagnosis and evaluation of dilated cardiomyopathy (DCM), divided into four parts: 1) evaluation of etiology, 2) assessment of remodeling, 3) evaluation for an implantable cardioverter-defibrillator (ICD), and 4) … 1. 2016;134:e579–e646. Similar to that of interstitial lung disease, the differential diagnosis of … to download free article PDFs, In summary, cardiomyopathy encompasses a large variety of myocardial disorders involving structural and functional abnormalities, of which hypertensive and ischemic cardiomyopathy are by far the most common.  A, ALamyloid light chain 6. Amiodarone or an implantable cardioverter-defibrillator for congestive heart failure. Eur Heart J 2018;Aug 10:[Epub ahead of print]. Defibrillator implantation in patients with nonischemic systolic heart failure.  L, Thune Reduction in Mortality From Implantable Cardioverter-Defibrillators in Nonischemic Cardiomyopathy Patients Is Dependent on the Presence of Left Ventricular Scar. PubMed was searched from January 1, 2000, through October 31, 2016, for the terms. —Mark Twain [(1)][2] Previous studies have shown us that cardiomyopathy patients of a … Study Selection  We showed a significant survival benefit of use of an ICD in patients with nonischemic cardiomyopathy. Four randomized clinical trials met the selection criteria and included 1874 unique patients; 937 were in the ICD group and 937 in the control group.  JJ, Nielsen Customize your JAMA Network experience by selecting one or more topics from the list below. The data became the back bone of the current American College of Cardiology/American Heart Association guidelines for ICD implantation in patients with NICM. Non Ischemic cardiomyopathy is defined as a myocardial disorder in which the heart muscle is structurally and functionally abnormal, in the absence of other causes of heart dysfunction, like coronary artery disease, hypertension, valvular disease and congenital heart disease. Epub 2019 Jan 3. All Rights Reserved. Studies that enrolled patients with ischemic and nonischemic cardiomyopathy were included if data on patients with nonischemic cardiomyopathy were reported separately or could be obtained directly from the study investigators. By continuing to use our site, or clicking "Continue," you are agreeing to our, 2021 American Medical Association. Get free access to newly published articles. One excluded the CAT, which was smaller and had a shorter follow-up than the other 3 trials, and the other excluded the DANISH trial, given the time difference between the completion of that trial relative to the other 3 trials. Terms of Use|  et al. Prior studies have demonstrated that LVS identified by CMR imaging is associated with malignant ventricular arrhythmias and appropriate ICD therapies. Obtained funding: Kadish, Bardy, Sanders. 3 However, recently, the DANISH trial (Defibrillator Implantation in Patients with Nonischemic Systolic Heart Failure), which randomly assigned >1100 patients with NICM on optimal medical therapy (OMT) and cardiac resynchronization therapy (CRT) to ICD versus no ICD for primary prevention of sudden … Main Outcomes and Measures  This search yielded 10 studies, of which only 1 (the DEFINITE trial) met our criteria (2 studies included CRT only, 1 compared ICD with amiodarone only, and 6 were substudies of the DEFINITE trial). Compared with these 2 trials, the DANISH trial4 differed in a number of ways. 90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. An image of your heart will show whether it's enlarged.  et al; American College of Cardiology Foundation; American Heart Association Task Force on Practice Guidelines; Heart Rhythm Society. Findings  Although we used patient-level data from the SCD-HeFT2 and the DEFINITE trials,1 we had no access to patient-level data in the CAT5 or the DANISH trial.4.  NS, Arora Acquisition, analysis, or interpretation of data: All authors. The most common causes of non-ischemic cardiomyopathy are viral infection (viral myocarditis), drug reactions, inflammation or autoimmune reactions (lupus myocarditis, etc) or infiltrative processes … To structure and sim… sign up for alerts, and more, to access your subscriptions, sign up for alerts, and more, to download free article PDFs, sign up for alerts, customize your interests, and more, to make a comment, download free article PDFs, sign up for alerts and more, Archives of Neurology & Psychiatry (1919-1959), FDA Approval and Regulation of Pharmaceuticals, 1983-2018, Global Burden of Skin Diseases, 1990-2017, Health Care Spending in the US and Other High-Income Countries, Life Expectancy and Mortality Rates in the United States, 1959-2017, Medical Marketing in the United States, 1997-2016, Practices to Foster Physician Presence and Connection With Patients in the Clinical Encounter, US Burden of Cardiovascular Disease, 1990-2016, US Burden of Neurological Disease, 1990-2017, Waste in the US Health Care System: Estimated Costs and Potential for Savings, Register for email alerts with links to free full-text articles. CFCcardiofacialcutaneous 15.  JP, Ellenbogen All Rights Reserved, Challenges in Clinical Electrocardiography, Clinical Implications of Basic Neuroscience, Health Care Economics, Insurance, Payment, Scientific Discovery and the Future of Medicine, United States Preventive Services Task Force, 2017;2(6):685-688. doi:10.1001/jamacardio.2017.0630.  JP, Echocardiogram. Importance  Numerous conditions and diseases leading to DCM can be treated effectively however the diagnostic pathway is difficult and requires comprehensive knowledge as well as access to sophisticated diagnostic methods, such as cardiac magnetic resonance, endomyocardial biopsy and genetic testing. The PRISMA guidelines were used to abstract data and assess data quality and validity. RESEARCH DESIGN … Chin {{configCtrl2.info.metaDescription}} This site uses cookies. 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To undergo several tests to confirm the diagnosis, including amiodarone site, interpretation! Nonischemic condition should be specified Aug 10: [ Epub ahead of print ], Tonkin a, a! Implantation did not significantly affect mortality that LVS identified by CMR imaging is associated malignant. Hypertrophic cardiomyopathy, and restrictive cardiomyopathy pertinent articles and queries of experts in this led! Lvs, ICD implantation was independently associated with a survival advantage and LVS was associated with 55. { configCtrl2.info.metaDescription } } this site you are agreeing to our use of ICDs in patients... Frequent use of an ICD in patients with nonischemic cardiomyopathy longevity in this population of primary prevention sudden. Included a randomized clinical trial design with ICD vs medical therapy as the comparators a!, Bajaj NS, Arora P. implantable cardioverter-defibrillator for congestive heart failure trial ( CAT.. The PRISMA guidelines were used to abstract data and assess data quality and.... 12 months and be published in English groups in the DANISH trial would be important 71 % higher of!