Some have them on top of the pectoral muscle, so you can see it."[16]. The pulse generator is a small metal box. Time dependence of defibrillator benefit after coronary revascularization in the Multicenter Automatic Defibrillator Implantation Trial (MADIT)-II. The integration of these various parameters is very complex, and clinically, the occurrence of inappropriate therapy is still occasionally seen and a challenge for future software advancements. Prophylactic use of an implantable cardioverter-defibrillator after acute myocardial infarction. This is a more complex procedure. 2005 Jan 20. Hess PL, Mi X, Curtis LH, Wilkoff BL, Hegland DD, Al-Khatib SM. Ask your health care team what machines or equipment you should avoid. A recent study by Birnie and colleagues at the University of Ottawa Heart Institute has demonstrated that ICDs are underused in both the United States and Canada. 2004 Jan. 27 (1):4-9. Cardiac resynchronization therapy is a procedure to implant a device in the chest to make the heart's chambers squeeze (contract) in a more organized and efficient way. 102 (7):748-54. 2002 Dec 25. 1-ranked heart program in the United States. Implantable cardioverter‐defibrillators (ICDs) improve survival in patients at high risk of sudden cardiac death, but device implantation carries a significant risk of bleeding complications. [QxMD MEDLINE Link]. N Engl J Med. CRT is not recommended for patients with NYHA class I or II symptoms and non-LBBB pattern with a QRS duration less than 150 ms. CRT is not indicated for patients whose comorbidities and/or frailty limit survival with good functional capacity to less than 1 year. Symptoms, Diagnosis and Monitoring of Arrhythmia. Reporting in 1999, the Antiarrhythmics Versus Implantable Defibrillators (AVID) trial consisted of 1,016 patients, and deaths in those treated with AAD were more frequent (n = 122) compared with deaths in the ICD groups (n = 80, p < 0.001). 2013 May 30. (PDF). Implantable cardioverter defibrillators have demonstrated clear life-saving benefits, while concerns about patient acceptance and psychological adjustment to the ICD have been the focus of much research. Tarek Ajam, MD, MS is a member of the following medical societies: American College of Cardiology, American College of PhysiciansDisclosure: Nothing to disclose. This requires a more complex surgery. Nevertheless, the prognostic impact of ICD therapy in continuous flow left ventricular assist device (LVAD) recipients remains controversial.Methods162 consecutive HF patients, who underwent . 44 (1):92-4. Stiles S. Early post-ICD-implant follow-up visit prolongs survival in NCDR registry. Summary. Most new ICDs can act as both a pacemaker and a defibrillator. The longer you’re exposed to the potentially interruptive device and the closer it is to your ICD, the more likely it will affect your ICD’s performance. Mark DB, Anstrom KJ, Sun JL, Clapp-Channing NE, Tsiatis AA, Davidson-Ray L, Lee KL, Bardy GH. This is not an all-inclusive list. [QxMD MEDLINE Link]. They include: Your healthcare provider will give you specific instructions about living with an S-ICD. People who have an implanted cardioverter-defibrillator can live full lives. Once the pocket has been created and hemostasis achieved, attention is turned toward obtaining vascular access. 1-800-AHA-USA-1 Then it will be taken out. ICD therapy significantly reduced all-cause mortality, whereas amiodarone did not compared to placebo. Bardy GH, Lee KL, Mark DB, et al, for the Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT) Investigators. If the fast heart rate continues, the defibrillator will deliver a shock to restore your heart to a normal rate. Language links are at the top of the page across from the title. Exposure to Air Pollution Linked With Symptomatic Arrhythmia, Surprisingly More Nonsustained VT Shown in HCM Using Extended ECG Monitoring. They also offer other functions such as storage of detected arrhythmic events. Be sure to follow all of your healthcare provider’s instructions. 2017 AHA/ACC/HRS guideline for management of patients with ventricular arrhythmias and the prevention of sudden cardiac death: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. 1-800-242-8721 Closed on Sundays. This will keep you from feeling pain as the device is replaced. Pacemakers and implantable cardioverter defibrillators (ICDs) are heart devices. This population accounts for the bulk of all ICD implants. J Am Coll Cardiol. Your risks may differ depending on your age, health issues, and where your generator was originally placed. Meta-analysis of the implantable cardioverter defibrillator secondary prevention trials. Learn more. Some of the Class I indications are as follows:[7]. Written by American Heart Association editorial staff and reviewed by science and medicine advisors. Download and print our Answers by Heart sheet: What is an ICD? Covering sleeves can shield the high-voltage coils from lead chatter in an integrated bipolar ICD lead. [31], Wearable cardioverter-defibrillators appear to be a safe and effective alternative for pediatric patients with ventricular arrhythmias at high risk for SCD but who are not ideal candidates for placement of ICDs. N Engl J Med. The Visia AF MRI ICD system is also approved for 1.5T and 3T MR conditional use, when MR conditions for use are met. Here are some common questions that may help you create your own list. Am J Cardiol. N Engl J Med. 337 (22):1576-83. Most people receive conscious sedation and are awake but relaxed during the procedure. Mann DE, Klein RC, Higgins SL, Freedman RA, Hahn SJ, Huang ZZ, et al. They may ask you to: Just before the procedure, a healthcare provider may: The procedure to implant an S-ICD usually takes a couple of hours. 2018 Jul 1. The surgeon will close up the pocket and the small incision in your skin. 7272 Greenville Ave. Expert Rev Cardiovasc Ther. Refer to the User's Manual for detailed indications, contraindications, warnings, precautions and potential adverse events. We do not endorse non-Cleveland Clinic products or services. [10] An accompanying editorial by Dr. Chris Simpson of Queen's University explores some of the economic, geographic, social and political reasons for this. 2008 Oct. 6 (9):1237-48. Available at http://www.who.int/en/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds). Your doctor will program the ICD to deliver the most effective therapies for your specific heart condition. Your healthcare provider can check the battery and functioning of your device. 35 (3):489-92. As with other metallic objects, an ICD is normally a contraindication to the use of magnetic resonance imaging (MRI). Eur Heart J. However, although mortality reduction was associated with with NYHA class II, no benefit of ICD therapy was observed in the remaining NYHA class III patients. You have an infection at the site of the generator, and you need more than antibiotics to clear it up. 2009. This is a transvenous approach (TV-ICD). Or you may need an echocardiogram. The following are class III indications ("no benefit") for CRT Doing so may damage the ICD or the leads going from the ICD generator to the patient's heart. Connolly SJ, Gent M, Roberts RS, et al. Transvenous extraction performance of expanded polytetrafluoroethylene covered ICD leads in comparison to traditional ICD leads in humans. These codes are only used by hospitals for reporting inpatient services. Arrange for a ride home after the procedure. If you have an ICD, be aware of your surroundings and the devices, such as those with strong magnetic fields, that may interfere with its operation. [29] but the elderly do not appear to derive a survival benefit with the addition of an ICD. . This will be just below your collarbone or somewhere in the soft tissue of your abdomen. [9] : Implantable cardioverter-defibrillator (ICDs) are contraindicated in patients experiencing tachyarrhythmias with reversible or transient causes including, but not limited to, the following: The results from the Defibrillators in Acute Myocardial Infarction Trial (DINAMIT) and the subsequent Immediate Risk-Stratification Improves Survival (IRIS) trial which enrolled patients with left ventricular (LV) ejection fractions (EFs) of up to 35% and 40%, respectively after an MI without revascularization have shed light on this entity. [12][13], The work was commenced against much skepticism even by leading experts in the field of arrhythmias and sudden death. See our editorial policies and staff. [24], A 2018 substudy report of the MADIT-Cardiac Resynchronization Therapy (MADIT-CRT) trial indicated that in CRT-treated heart failure patients, left atrial abnormality on electrocardiography (ECG) appeared to be an ECG indicator of poor long-term outcome in those with left bundle branch block (LBBB). It acts instantly if your heart rhythm changes for the worse. 60 (11):981-7. Try to take it easy the rest of the day. [23] The data indicated that CRT and CRT-D significantly reduced death or hospitalization for any cause, but only CRT-D reduced all-cause mortality. Signs may include: A subcutaneous implantable cardioverter defibrillator (S-ICD) is a medical device implanted under your skin. 2004 May 20. Brignole M, Occhetta E, Bongiorni MG, et al, for the SAFE-ICD Study Investigators. Thin wires connect the ICD to your heart. Rx Only Internal Medicine. The lateral edge of the deltopectoral muscle is subsequently lifted and gently separated from the pectoralis minor by using blunt dissection with Metzenbaum scissors; blunt dissection with fingers may also be used at this point. The cephalic vein is then isolated and secured. Cardiac-resynchronization therapy with or without an implantable defibrillator in advanced chronic heart failure. J Am Coll Cardiol. Diagnostic functions, including stored electrograms, allow for verification of shock appropriateness. Richard A Lange, MD, MBA President, Texas Tech University Health Sciences Center, Dean, Paul L Foster School of Medicine This can help the doctor plan future treatment. Sophisticated supraventricular tachycardia (SVT) versus ventricular tachycardia (VT) discrimination algorithms reduce the incidence of inappropriate shocks for atrial fibrillation and rapid ventricular response, sinus tachycardia, and other non–life-threatening SVTs. plantable cardioverter defibrillator (ICD) shock and mortality. The generator is about the size of a pocket watch. 2005 Jun. (Your medical team will keep you under sedation with medications to ensure you don’t feel any pain.) Ferrari, P. et al. It's natural to have many questions, concerns and emotions about a new ICD. 263:48-53. The subcutaneous defibrillator: who stands to benefit. Heartwire from Medscape. Overview of detection and treatment of ventricular arrhythmia by implantable cardioverter-defibrillator (ICD). There, the healthcare team monitors you as the anesthesia wears off. This can be especially helpful for emergency medical personnel. Traditional ICDs are implanted under the skin with the generator positioned beneath . Last reviewed by a Cleveland Clinic medical professional on 08/05/2022. An implantable defibrillator is most commonly used as a part of a patient's treatment. An implantable cardioverter defibrillator (ICD) is a small electronic device connected to the heart. Safety and efficacy of a totally subcutaneous implantable-cardioverter defibrillator. Secondary prevention has the strongest evidence for benefit and it refers to survivors of cardiac arrest secondary to ventricular fibrillation or hemodynamically unstable sustained ventricular tachycardia after reversible causes are excluded. Before finishing the procedure, they test the system by inducing an abnormal heart rhythm and allowing the device to shock you to prove that it’s working properly. [9], ICD therapy may be considered for patients with recurrent syncope associated with complex congenital heart disease and advanced systemic ventricular dysfunction when thorough invasive and noninvasive investigations have failed to define a cause. Follow your healthcare provider’s orders about what medicines to take. The US experience of the wearable cardioverter-defibrillator in pediatric patients. An ICD is an electronic medical device that helps prevent sudden cardiac death. The difference between pacemakers and ICDs is that pacemakers are also available as temporary units and are generally designed to correct slow heart rates, i.e. This is because their batteries run out over time. It monitors the heart's rhythm 24 hours a day and detects abnormal rhythms in the ventricles (these are the parts of the heart that pump blood around the body). The implantable cardioverter-defibrillator (ICD) is first-line treatment and prophylaxis for patients who are at risk of sudden cardiac death (SCD). [Guideline] Al-Khatib SM, Stevenson WG, Ackerman MJ, et al. Therefore, they can't help your heart maintain a normal rate or rhythm. Then your surgeon will put a new generator in the same pocket and connect it to the leads that are in place. In the picture, an example of torsades de pointes can be seen; this represents a form of irregular ventricular tachycardia. 2007 Sep 18. [QxMD MEDLINE Link]. [9] In 2002 the MADITII trial showed benefit of ICD treatment in patients after myocardial infarction with reduced left ventricular function (EF<30). 351 (24):2481-8. Toxic dilated cardiomyopathy (T-DCM) due to substance abuse is now recognized as a potential cause of severe left ventricular dysfunction. Equipment using large magnets or generating magnetic fields, or any similar environment, must be avoided by patients with an ICD. They use them when you have a type of. 3 | January 2023 Absorbable antibacterial envelope (TYRX™)* No resolution of the cardiac symptoms you had before S-ICD implantation. Avoid food and water the day of the procedure. This will make you feel sleepy and relaxed. It's often implanted under the skin just below the collarbone. Defibrillator (ICD)? Depressive symptoms are also common, but the incidence of these problems has been shown to be similar to those observed in other cardiac patient groups, with approximately 24–41% of patients with ICDs experiencing depressive symptoms. Find more information on our content editorial process. Droghetti, A. et al. Almost all forms of physical activities can be performed by patients with an ICD. You will likely have a checkup a week or so after your surgery. Most leads travel through a vein to attach to the right side of your heart. [QxMD MEDLINE Link]. The high-risk profile of the patients or device-related risks such as inappropriate pacing may have influenced the outcomes. Levy WC, Lee KL, Hellkamp AS, et al. Medical staff will start a medicine through an IV line. Ask your healthcare provider if you can take over-the-counter (OTC) medicines. [QxMD MEDLINE Link]. Klug D, Balde M, Pavin D, et al, for the PEOPLE Study Group. Nevertheless, most practitioners prescribe oral antibiotics for a short period. Medtronic Operational Headquarters 710 Medtronic Parkway Minneapolis, MN 55432-5640 USA, Central/Eastern Europe, Middle East & Africa, Electromagnetic Compatibility Guide for Cardiac Devices, Electromagnetic Compatibility for Cardiac Devices, California Transparency in Supply Chains Act, Information About Proposition 65 for California Customers, Digital Millennium Copyright Act (DMCA) Notification. [33, 34] Therefore, secondary prevention ICD therapy is a class I recommendation for patients meeting AVID criteria in ACC/AHA guidelines. For nearly 3 decades, the implantable cardioverter-defibrillator (ICD) has been available to patients who survived life-threatening rapid heart rhythms or are at risk of experiencing them. Can anything be done to minimize the number of non-critical shocks. With an updated browser, you will have a better Medtronic website experience. 2010 Dec 21. for the Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT) Investigators. 7-9 An alternative solution is a DX ICD system capable . Am J Cardiol. Don’t stop taking any medicine unless your healthcare provider tells you to do so. Medscape Education. Heartwire from Medscape. [2, 3], Indications for implantation of an implantable cardioverter-defibrillator (ICD) are established and classified on the basis of guidelines developed by the American College of Cardiology (ACC), the American Heart Association (AHA), and the Heart Rhythm Society (HRS). Wires or leads run from the pulse generator to positions on the surface of or inside the heart and can be installed through blood vessels, eliminating the need for open-chest surgery. Your healthcare provider may do some tests before your procedure. Find more information on our content editorial process. 2004 May 19. If you experience signs of infection or heart trouble after S-ICD implantation, seek medical attention. These guidelines also assigned a class I recommendation for patients with nonischemic cardiomyopathy, NYHA class II and III, and an LVEF up to 30%-35%). Mirowski M, Reid PR, Mower MM, et al. After cleaning the area, the healthcare provider injects medicine to numb the skin over your generator. It contains electric circuits and a battery. Usually the ICD does not improve the quality of life of the patient, although it may provide a strong degree of reassurance. Make sure someone is around to help you. This test checks how blood is moving through your heart. An implantable cardioverter-defibrillator (ICD) is an electrical device that shocks the heart if it senses a dangerous heart rhythm. 2009 Oct 8. It is important to place the lead(s) in the bottom of the pocket and then to position the ICD PG in such a way that it covers the lead(s). Current ICD/lead systems offer tiered therapy with programmable antitachycardia pacing (ATP) schemes, as well as low-energy and high-energy shocks in multiple tachycardia zones. An ICD is a battery-powered device placed under the skin that keeps track of your heart rate. Can my family member or I still drive, travel, have sex, work out or continue other activities we enjoy? They work for 5 to 10 years before they need to be replaced. Ask your healthcare provider about your outlook before your surgery. Sudden cardiac arrest is the "sudden cessation of cardiac activity so that the victim becomes unresponsive, with no normal breathing and no signs of circulation." If the condition is not addressed immediately, sudden cardiac arrest progresses to sudden . The potential benefit of primary prevention in NYHA class IV patients is not defined. Carry a card or wear a bracelet that identifies you as someone with an ICD. [QxMD MEDLINE Link]. [QxMD MEDLINE Link]. 2006 Sep 5. The lead usually lodges in the apex or septum of the right ventricle. [9] : ICD therapy may be considered in patients with the following Have cardiac anatomy that is difficult to access. The procedure may take a few hours. Medical staff will closely watch your heart rate, blood pressure, and other vital signs. It requires inserting two parts: a generator and a defibrillation lead. Mendis S, Puska P, Norrving B, eds. Initially ICDs were implanted via thoracotomy with defibrillator patches applied to the epicardium or pericardium. [1] (which enrolled survivors of cardiac arrest, patients with syncopal ventricular tachycardia [VT], and patients with symptomatic VT with an LVEF up to 40%) showed a significant reduction in all-cause mortality for patients treated with an ICD compared to those who received antiarrhythmic medication. In 2006, the American College of Cardiology, American Heart Association, and European Society of Cardiology (ACC/AHA/ESC) guidelines for management of patients with ventricular arrhythmias and prevention of sudden cardiac death (SCD) assigned a class I recommendation for primary prevention ICD therapy to NYHA class II and III patients with an LVEF up to 30%-40% with coronary artery disease (CAD) and prior MI. Canadian Implantable Defibrillator Study. An implantable cardioverter-defibrillator (ICD) is a small battery-powered device placed in the chest to detect and stop irregular heartbeats (arrhythmias). [QxMD MEDLINE Link]. Biton Y, Rosero S, Moss AJ, et al. [QxMD MEDLINE Link]. Di Cori A, Bongiorni MG, Zucchelli G, et al. A dual-chamber ICD would be useful in patients who have indications for atrial sensing or pacing (those with sinus node disease) or to enhance the SVT versus VT discrimination enhancement by having an atrial electrogram during SVT or VT. Many ICDs also record the heart's electrical patterns when there is an abnormal heartbeat. Living with a Pacemaker or Implantable Cardioverter Defibrillator ICD Cardiovascular Arrhythmia Treatment Pacemakers and ICDs generally last 5 to 7 years or longer, depending on usage and the type of device. CRT may be considered for patients who have the following Medscape Cardiology. In patients who require a subpectoral pocket (ie, very thin patients with minimal subcutaneous tissue), an experienced implanter should perform the operation using appropriate tools, as there is an increased risk of bleeding during the procedure. You often have a few months to schedule your replacement procedure. James K Gabriels, MD, MSc State University of New York Downstate Medical SchoolDisclosure: Nothing to disclose. Incidence and predictors of implantable cardioverter-defibrillator therapy in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy undergoing implantable cardioverter-defibrillator implantation for primary prevention. Wilkoff BL, Cook JR, Epstein AE, et al, for the Dual Chamber and VVI Implantable Defibrillator Trial Investigators. [QxMD MEDLINE Link]. Replacing the pulse generator is a simple surgery. [7] Europace. Advertising on our site helps support our mission. It detects an abnormal heartbeat and tries to return the heartbeat to normal. [QxMD MEDLINE Link]. Policy. Background: Implantable cardioverter-defibrillator (ICD) therapy is the most effective prophylactic strategy against sudden cardiac death (SCD) in patients with ischemic cardiomyopathy (ICM) and left ventricle ejection fraction (LVEF) ≤35% as detected by transthoracic echocardiograpgy (TTE). This is done so you can get medicine during the surgery. Osswald BR, De Simone R, Most S, Tochtermann U, Tanzeem A, Karck M. High defibrillation threshold in patients with implantable defibrillator: how effective is the subcutaneous finger lead?. [Full Text]. Shave and clean the area where your surgeon will implant the device. Eur J Cardiothorac Surg. Bristow MR, Saxon LA, Boehmer J, et al, for the Comparison of Medical Therapy, Pacing, et al. When people refer to an implantable defibrillator, they are actually discussing the system—the defibrillator (ICD) and the leads. Just before the procedure, someone may shave your skin above the area where you will have the incision. Kumar and Clarke. Particularly to be avoided are exercises that cause the clavicle to be pulled down towards the ribs, such as lifting weights with the arm, on the ICD site, while standing. For patients who are at an increased risk of having a cardiac arrest, a permanent implantable cardioverter-defibrillator (ICD), sometimes referred to simply as a defibrillator, can be implanted so that a shock can be quickly delivered if it is ever needed. Note that mortality benefit from ICD therapy is highest in the lower and intermediate group rather than the highest risk group. The device itself acts as an electrode. Circulation. Cardiovascular diseases are responsible for approximately 17.7 million deaths in the world every year, 3, 4 We report a case of dual tachycardia, both AF and VF, induced by an electrical shock that was appropriately detected and terminated by dual-chamber ICD. Circulation. [QxMD MEDLINE Link]. 2007 Feb. 9 (2):137-42. If your heart is beating too fast or irregularly, the device will first send small painless electrical signals to correct your heart rate. Available at http://www.medscape.com/viewarticle/480031#vp_1. 61 (3):e6-75. These devices have two main parts: a pulse generator and a set of wires (leads). A prospective randomized trial. An implantable cardioverter-defibrillator ( ICD) or automated implantable cardioverter defibrillator ( AICD) is a device implantable inside the body, able to perform defibrillation, and depending on the type, cardioversion and pacing of the heart. [2] Later, a post-hoc subset analysis demonstrated a survival benefit for ICD in patients with a QRS duration of at least 120 ms. Cardiac perforation (tear in your heart tissue). Management of high defibrillation threshold. [1, 2, 3]. What should I know about an ICD regarding end-stage heart failure or death? Pacemakers are used to treat slow heart rhythms. Ali A Mehdirad, MD is a member of the following medical societies: American College of CardiologyDisclosure: Nothing to disclose. (PDF). Buxton AE, Fisher JD, Josephson ME, et al. In rare cases, you may need to have the leads removed along with or instead of generator replacement. [18, 19, 20], The MADIT II (Multicenter Automatic Defibrillator Implantation Trial with Cardiac Resynchronization Therapy) trial and SCD-HeFT (Sudden Cardiac Death in Heart Failure Trial) enrolled patients with prior CABG or PCI. Does gender have any bearing on how the ICD works? Practitioners use the terms sudden cardiac arrest (SCA) and sudden cardiac death interchangeably; however, their definitions are distinct. In the Multicenter Automatic Defibrillator Implantation Trial II (MADIT II) study, ICD reduced all cause mortality by 31% in 1232 patients with myocardial infarction (MI) at least 30 days or longer before enrollment and an a left ventricular (LV) ejection fraction (EF) of 30%. *All health/medical information on this website has been reviewed and approved by the American Heart Association, based on scientific research and American Heart Association guidelines. Pacing Clin Electrophysiol. More You may have heard of two little devices that doctors use to help treat heart problems: pacemakers and ICDs (implantable cardioverter defibrillators). A subcutaneous implantable cardioverter defibrillator (S-ICD) is a type of implantable cardioverter defibrillator (ICD). Appropriate detection and termination of VF resulting from alternating current shock by a single-chamber implantable cardioverter-defibrillator (ICD) has previously been reported. 303 (6):322-4. Once the incision is carried down to the prepectoral fascia, electrocautery is used to create a new plane in the inferior part of the incision with the help of an Army-Navy retractor. 2012 Sep 11. Your healthcare provider will monitor your ICD or pacemaker regularly, just like he or she did before the procedure. Geneva, Switzerland: World Health Organization, World Heart Federation, World Stroke Organization; 2011. Our online community of patients, survivors and caregivers is here to keep you going no matter the obstacles. Antiarrhythmics versus Implantable Defibrillators (AVID) Investigators. Adam S Budzikowski, MD, PhD, FHRS is a member of the following medical societies: European Society of Cardiology, Heart Rhythm SocietyDisclosure: Received consulting fee from Boston Scientific for speaking and teaching; Received honoraria from St. Jude Medical for speaking and teaching; Received honoraria from Zoll for speaking and teaching. Despite the lack of financial backing and grants, they persisted and the first device was implanted in February 1980 at Johns Hopkins Hospital by Dr. Levi Watkins, Jr.[12][15], The first devices required the chest to be cut open and a mesh electrode sewn onto the heart; the pulse generator was placed in the abdomen.[12]. [23][24] The primary etiological factors contributing to anxiety in ICD patients have not been determined, however. Coming to a Cleveland Clinic location?Hillcrest Cancer Center check-in changesCole Eye entrance closingVisitation and COVID-19 information. N Engl J Med. Patients ©2023 American Heart Association, Inc. All rights reserved. The implantable cardioverter defibrillator known as ICD is an implantable device similar to a pacemaker that has leads, usually transvenous, that connect to the right ventricle. Card Electrophysiol Rev. Hohnloser SH, Kuck KH, Dorian P, et al, for the DINAMIT Investigators. Information on this site should not be used as a substitute for talking with your doctor. Of all implanted CIEDs, one-third are implantable cardioverter-defibrillators (ICDs). Always talk with your doctor about diagnosis and treatment information. Implantable cardioverter-defibrillators in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy.
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