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| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Dean Liu | -- | 2179 | 2022-11-10 01:38:18 |
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An implantable cardioverter-defibrillator (ICD) or automated implantable cardioverter defibrillator (AICD) is a device implantable inside the body, able to perform cardioversion, defibrillation, and (in modern versions) pacing of the heart. The device is therefore capable of correcting most life-threatening cardiac arrhythmias. The ICD is the first-line treatment and prophylactic therapy for patients at risk for sudden cardiac death due to ventricular fibrillation and ventricular tachycardia. Current devices can be programmed to detect abnormal heart rhythms and deliver therapy via programmable antitachycardia pacing in addition to low-energy and high-energy shocks. "AICD" was trademarked by the Boston Scientific corporation, so the more generic "ICD" is preferred terminology. Current device batteries last about six to ten years; with advances in technology (batteries with more capacity or potentially rechargeable batteries) it may be possible to increase this well past ten years. The lead (the electrical cable connecting the device to the heart) has a much longer average longevity but can incur various types of malfunction, specifically insulation failure or fracture of the conductor, and require replacement. The process of implantation of an ICD system is similar to implantation of a pacemaker. In fact, ICDs are composed of an ICD generator and of wires. The first component or generator contains a computer chip or circuitry with RAM (memory), programmable software, a capacitor and a battery; this is implanted typically under the skin in the left upper chest. The second part of the system is an electrode wire or wires that, similar to pacemakers, are connected to the generator and passed through a vein to the right chambers of the heart. The lead usually lodges in the apex or septum of the right ventricle. Just like pacemakers, ICDs can have a single wire or lead in the heart (in the right ventricle, single chamber ICD), two leads (in the right atrium and right ventricle, dual chamber ICD) or three leads (biventricular ICD, one in the right atrium, one in the right ventricle and one on the outer wall of the left ventricle). 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. bradycardia, while ICDs are often permanent safeguards against sudden life-threatening arrhythmias. Recent developments include the subcutaneous ICD (S-ICD), and the ability to pace the left ventricle from multiple sites near-simultaneously with Multipoint Pacing (Abbott).
References
- Tracy, Cynthia M.; Epstein, Andrew E.; Darbar, Dawood; DiMarco, John P.; Dunbar, Sandra B.; Estes, N.A. Mark; Ferguson, T. Bruce; Hammill, Stephen C. et al. (January 2013). "2012 ACCF/AHA/HRS Focused Update Incorporated Into the ACCF/AHA/HRS 2008 Guidelines for Device-Based Therapy of Cardiac Rhythm Abnormalities". Journal of the American College of Cardiology 61 (3): e6–e75. doi:10.1016/j.jacc.2012.11.007. PMID 23265327. https://dx.doi.org/10.1016%2Fj.jacc.2012.11.007
- Bardy GH, Lee KL, Mark DB, Poole JE, Packer DL, Boineau R, Domanski M, Troutman C, Anderson J, Johnson G, McNulty SE, Clapp-Channing N, Davidson-Ray LD, Fraulo ES, Fishbein DP, Luceri RM, Ip JH; Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT) Investigators. Amiodarone or an implantable cardioverter-defibrillator for congestive heart failure. N Engl J Med. 2005 Jan 20; 352(3):225–37.
- "Causes of death in the Antiarrhythmics Versus Implantable Defibrillators (AVID) Trial". Journal of the American College of Cardiology 34 (5): 1552–59. November 1999. doi:10.1016/s0735-1097(99)00376-9. PMID 10551706. https://dx.doi.org/10.1016%2Fs0735-1097%2899%2900376-9
- Birnie, David H; Sambell, Christie; Johansen, Helen; Williams, Katherine; Lemery, Robert; Green, Martin S; Gollob, Michael H; Lee, Douglas S et al. (July 2007). "Use of implantable cardioverter defibrillators in Canadian and US survivors of out-of-hospital cardiac arrest". Canadian Medical Association Journal 177 (1): 41–46. doi:10.1503/cmaj.060730. PMID 17606938. PMC 1896034. http://www.cmaj.ca/cgi/reprint/177/1/41. Retrieved 2007-07-29.
- Simpson, Christopher S (July 2007). "Implantable cardioverter defibrillators work – so why aren't we using them?". Canadian Medical Association Journal 177 (1): 49–51. doi:10.1503/cmaj.070470. PMID 17606939. PMC 1896028. http://www.cmaj.ca/cgi/reprint/177/1/49. Retrieved 2007-07-29.
- Matchett, M; Sears, SF; Hazelton, G; Kirian, K; Wilson, E; Nekkanti, R (January 2009). "The implantable cardioverter defibrillator: its history, current psychological impact and future.". Expert Review of Medical Devices 6 (1): 43–50. doi:10.1586/17434440.6.1.43. PMID 19105779. https://dx.doi.org/10.1586%2F17434440.6.1.43
- "Standby automatic defibrillator: An approach to prevention of sudden coronary death". Arch Intern Med 126 (1): 158–61. 1970. doi:10.1001/archinte.1970.00310070160014. PMID 5425512. https://dx.doi.org/10.1001%2Farchinte.1970.00310070160014
- Lown, B; Axelrod, P (October 1972). "Implanted standby defibrillators.". Circulation 46 (4): 637–9. doi:10.1161/01.cir.46.4.637. PMID 5072764. https://dx.doi.org/10.1161%2F01.cir.46.4.637
- Roberts, Sam (April 16, 2015). "Levi Watkins, 70, Dies; Pioneering Heart Surgeon Pushed Civil Rights". New York Times. https://www.nytimes.com/2015/04/17/health/levi-watkins-70-pioneering-heart-surgeon-is-dead.html?_r=0.
- "Eriksen to have heart-starting device". BBC Sport. 17 June 2021. https://www.bbc.co.uk/sport/football/57508250.
- Burns, J. L.; Serber, E. R.; Keim, S; Sears, S. F. (April 2005). "Measuring patient acceptance of implantable cardiac device therapy: Initial psychometric investigation of the Florida Patient Acceptance Survey". Journal of Cardiovascular Electrophysiology 16 (4): 384–90. doi:10.1046/j.1540-8167.2005.40134.x. PMID 15828880. https://dx.doi.org/10.1046%2Fj.1540-8167.2005.40134.x
- "Effective management of ICD patient psychosocial issues and patient critical events". J Cardiovasc Electrophysiol 20 (11): 1297–304. 2009. doi:10.1111/j.1540-8167.2009.01526.x. PMID 19563356. https://dx.doi.org/10.1111%2Fj.1540-8167.2009.01526.x
- Bardy, Lee, Mark et al., 2005
- Mark DB, Anstrom KJ, Sun JL, Clapp-Channing NE, Tsiatis AA, Davidson-Ray L, Lee KL, Bardy GH. Quality of life with defibrillator therapy or amiodarone in heart failure. N Engl J Med 2008; 359(10):999–1008
- "Rare infection of implantable cardioverter-defibrillator lead with Candida albicans: case report and literature review". Ther Adv Cardiovasc Dis 8 (5): 193–201. October 2014. doi:10.1177/1753944714539406. PMID 24951637. https://dx.doi.org/10.1177%2F1753944714539406
- "Depression and anxiety status of patients with implantable cardioverter defibrillator and precipitating factors". Pacing Clin Electrophysiol 29 (6): 619–26. Jun 2006. doi:10.1111/j.1540-8159.2006.00409.x. PMID 16784428. https://dx.doi.org/10.1111%2Fj.1540-8159.2006.00409.x
- Sears SF Jr.; Todaro JF; Lewis TS; Sotile W; Conti JB. (1999). "Examining the psychosocial impact of implantable cardioverter defibrillators: a literature review". Clin Cardiol 22 (7): 481–89. doi:10.1002/clc.4960220709. PMID 10410293. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=6656039
- "Anxiety and marital adjustment in patients with implantable cardioverter defibrillator and their spouses". Journal of Cardiopulmonary Rehabilitation and Prevention 27 (1): 46–49. 2007. doi:10.1097/01.hcr.0000265027.79649.6a. PMID 17474644. https://dx.doi.org/10.1097%2F01.hcr.0000265027.79649.6a
- "Sexual health for patients with an Implantable Cardioverter Defibrillator". Circulation 122 (13): 465–67. 2010. doi:10.1161/circulationaha.110.949628. PMID 20876441. https://dx.doi.org/10.1161%2Fcirculationaha.110.949628
