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Supraventricular tachycardia

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444: 343: 476: 40: 487: 594: 612:, is caused by a re-entry rhythm in the atria, with a regular atrial rate often of about 300 beats per minute. On the ECG this appears as a line of "sawtooth" waves preceding the QRS complex. The AV node will not usually conduct 300 beats per minute so the P:QRS ratio is usually 2:1 or 4:1 pattern, (though rarely 3:1, and sometimes 1:1 where class IC 623:(AVNRT) involves a reentry circuit forming next to, or within, the AV node. The circuit most often involves two tiny pathways one faster than the other. Because the node is immediately between the atria and ventricle, the re-entry circuit often stimulates both, appearing as a backward (retrograde) conducted P-wave buried within or occurring just 575:. Some atrial tachycardias, rather than being a result of increased automaticity may be a result of a micro-reentrant circuit (defined by some as less than 2 cm in longest diameter to distinguish it from macro-reentrant atrial flutter). Still other atrial tachycardias may be due to triggered activity caused by after-depolarizations. 705: 689: 826:
has revolutionized the treatment of tachycardia caused by a re-entrant pathway. This is a low-risk procedure that uses a catheter inside the heart to deliver radiofrequency energy to locate and destroy the abnormal electrical pathways. Ablation has been shown to be highly effective: around 90% in the
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In orthodromic AVRT, atrial impulses are conducted down through the AV node and retrogradely re-enter the atrium via the accessory pathway. A distinguishing characteristic of orthodromic AVRT can therefore be an inverted P-wave (relative to a sinus P wave) that follows each of its regular, narrow QRS
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are in use). Because the ratio of P to QRS is usually consistent, A-flutter is often regular in comparison to its irregular counterpart, atrial fibrillation. Atrial flutter is also not necessarily a tachycardia by definition unless the AV node permits a ventricular response greater than 100 beats per
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Signs and symptoms can arise suddenly and may resolve without treatment. Stress, exercise, and emotion can all result in a normal or physiological increase in heart rate, but they can precipitate SVT in rare cases. Episodes can last from a few minutes to one or two days. They sometimes persist until
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SVTs can be categorised by whether the AV node is involved in maintaining the rhythm. If it is, manoeuvres slowing conduction through the AV node will terminate it. If it is not, AV nodal blocking maneuvers will not terminate it, but resulting temporary suppression of the AV node is still useful to
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blocking agent as pill-in-pocket, but regular medication may also be used to prevent or reduce recurrence. While some treatment modalities can be applied to all SVTs, there are specific therapies available to treat some sub-types. Effective treatment consequently requires knowledge of how and where
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Symptoms of heart arrhythmias, such as SVT, are more difficult to assess in infants and toddlers because of their limited ability to communicate. Caregivers should watch for lack of interest in feeding, shallow breathing, and lethargy. These symptoms may be subtle and may be accompanied by vomiting
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meets the definition of SVT when associated with a ventricular response greater than 100 beats per minute. It is characterized as an "irregularly, irregular rhythm" both in its atrial and ventricular depolarizations and is distinguished by its fibrillatory atrial waves that, at some point in their
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This therapy has further improved the treatment options for AVNRT (and other SVTs with pathways close to the AV node), widening the application of curative ablation to young patients with relatively mild but still troublesome symptoms who might not have accepted the risk of requiring a pacemaker.
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gas freezing the tissue to −10 °C (+14.0 °F). This provides the same result as radiofrequency ablation but does not carry the same risk. If it is found that the wrong tissue is being frozen, the freezing process can be quickly stopped with the tissue returning to normal temperature and
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is an initial slurred deflection seen in the initial part of an otherwise narrow QRS of a patient at risk for WPW and is an indicator of the presence of an accessory pathway. These beats are a fusion between the conduction down the accessory pathway and the slightly delayed but then-dominant
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Schwagten, Bruno et al. "Long-term follow-up after catheter ablation for atrioventricular nodal reentrant tachycardia: a comparison of cryothermal and radiofrequency energy in a large series of patients." Journal of interventional cardiac electrophysiology : an international journal of
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is a newer treatment involving the AV node directly. SVT involving the AV node is often a contraindication to using radiofrequency ablation due to the small (1%) incidence of injuring the AV node, then requiring a permanent pacemaker. Cryoablation uses a catheter supercooled by
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Once an acute arrhythmia has been terminated, ongoing treatment may be indicated to prevent recurrence. However, those that have an isolated episode, or infrequent and minimally symptomatic episodes, usually do not warrant treatment other than observation and explanation.
459:, which allows only a proportion of the fast impulses to pass through to the ventricles. An accessory "bypass tract" can avoid the AV node and its protection so that the fast rate may be directly transmitted to the ventricles. This situation has characteristic findings on 633:(AVRT), also results from a reentry circuit, although one physically much larger than AVNRT. One portion of the circuit is usually the AV node, and the other, an abnormal accessory pathway (muscular connection) from the atria to the ventricle. 506:(VT). In the clinical setting, the distinction between narrow and wide complex tachycardia (supraventricular vs. ventricular) is fundamental since they are treated differently. In addition, ventricular tachycardia can quickly degenerate into 712:
The following types of supraventricular tachycardias are more precisely classified by their specific site of origin. While each belongs to the broad classification of SVT, the specific term/diagnosis is preferred when possible:
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of the AV node itself initiating frequent heartbeats. On the ECG, junctional tachycardia often presents with abnormal morphology P-waves that may fall anywhere in relation to a regular, narrow QRS complex. It is often due to
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In antidromic AVRT, atrial impulses are conducted down through the accessory pathway and re-enter the atrium retrogradely via the AV node. Because the accessory pathway initiates conduction in the ventricles outside of the
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function in a short time. If after freezing the tissue to −10 °C the desired result is obtained, the tissue can be further cooled to a temperature of −73 °C (-99.4 °F) and it will be permanently ablated.
1990:) has this. He had his first attack on April 9, 2012 while golfing and was hospitalized over night. He was diagnosed April 17, 2014 in Hamilton ON after having an attack walking home from dinner on March 16, 2014. 1630:
Bhaskaran A, Chik W, Thomas S, Kovoor P, Thiagalingam A. A review of the safety aspects of radio frequency ablation. Int J Cardiol Heart Vasc. 2015;8:147-153. Published 2015 Jun 9. doi:10.1016/j.ijcha.2015.04.011
2102: 2087: 2072: 571:) ability to generate electrical impulses that are common to all cardiac muscle cells, have established themselves as a 'rhythm center' with a natural rate of electrical discharge that is faster than the normal 1573:
Electrocardiograms of the months. Wolff-Parkinson-White pattern with alternating conduction between the A-V node and the aberrant pathway (bundle of Kent). N Y State J Med. 1982 Dec;82(13):1847-8. PMID
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within the atria, distinguished by P-waves of at least three different morphologies that all fall before irregular, narrow QRS complexes. This rhythm is most commonly seen in elderly people with
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have been devised to assist in distinguishing between them. In general, a history of structural heart disease markedly increases the likelihood that the tachycardia is ventricular in origin.
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arises from an independent focus within the atria, distinguished by a consistent P-wave of abnormal shape and/or size that falls before a narrow, regular QRS complex. It can be caused by
331:. Atrial fibrillation affects about 25 per 1000 people, paroxysmal supraventricular tachycardia 2.3 per 1000, Wolff-Parkinson-White syndrome 2 per 1000, and atrial flutter 0.8 per 1000. 1534:
Hafeez Y, Quintanilla Rodriguez BS, Ahmed I, et al. Paroxysmal Supraventricular Tachycardia. . In: StatPearls . Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from:
2045: 360: 548:) that falls before a regular, narrow QRS complex. It cannot be distinguished electrocardiographically from sinus tachycardia unless the sudden onset is observed (or recorded on a 1913: 359: 1621:
Kotadia ID, Williams SE, O'Neill M. Supraventricular tachycardia: An overview of diagnosis and management. Clin Med (Lond). 2020;20(1):43-47. doi:10.7861/clinmed.cme.20.1.3
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Custer AM, Yelamanchili VS, Lappin SL. Multifocal Atrial Tachycardia. 2020 Jul 19. In: StatPearls . Treasure Island (FL): StatPearls Publishing; 2021 Jan–. PMID 29083603.
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conduction via the AV node. Once an antidromic AVRT tachycardia is initiated, it is no longer delta waves but rather a wide complex (>120 ms) tachycardia that is seen.
820:, as well as antiarrhythmic drugs may be used, usually with good effect, although the adverse effects of these therapies need to be weighed against potential benefits. 1939: 1555:
Rosen MR, Moak JP, Damiano B. The clinical relevance of afterdepolarizations. Ann N Y Acad Sci. 1984;427:84-93. doi: 10.1111/j.1749-6632.1984.tb20776.x. PMID 6378020.
791:, a form of SVT that involves a slow retrograde conduction over accessory pathway – occurs predominantly in infants and children but can occasionally occur in adults 812:
In general, patients with more frequent or disabling symptoms warrant some form of prevention. A variety of drugs including simple AV nodal blocking agents such as
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A normal resting heart rate is 60 to 100 beats per minute. A resting heart rate of more than 100 beats per minute is defined as a tachycardia. During an episode of
529:, except for its faster rate (>100 beats per minute in adults). However, sinus tachycardia is considered part of the diagnoses included in SVT by most sources. 1785: 1546:
Hadid C. Sustained ventricular tachycardia in structural heart disease. Cardiol J. 2015;22(1):12-24. doi: 10.5603/CJ.a2014.0069. Epub 2014 Oct 9. PMID 25299497.
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Alasti M, Mirzaee S, Machado C, et al. Junctional ectopic tachycardia (JET). J Arrhythm. 2020;36(5):837-844. Published 2020 Jul 27. doi:10.1002/joa3.12410
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Aumüller G. Die Entdeckung des AV-Knotens des Herzens durch Sunao Tawara und Ludwig Aschoff . Dtsch Med Wochenschr. 2019 Dec;144(25):1771–1777. German.
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Lau EW, Ng GA (2002). "Comparison of the performance of three diagnostic algorithms for regular broad complex tachycardia in practical application".
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and death and merits different consideration. In the less common situation in which a wide-complex tachycardia may be supraventricular, a number of
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Severo, Richard (September 26, 2003). "George Plimpton, Urbane and Witty Writer, Dies at 76". The New York Times. Retrieved May 25, 2010.
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Lifestyle changes, medication and heart procedures may be needed to control or eliminate the rapid heartbeats and related symptoms.
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Most SVTs are unpleasant rather than life-threatening, although very fast heart rates can be problematic for those with underlying
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Al-Zaiti, SS; Magdic, KS (September 2016). "Paroxysmal Supraventricular Tachycardia: Pathophysiology, Diagnosis, and Management".
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Bibas L, Levi M, Essebag V. Diagnosis and management of supraventricular tachycardias. CMAJ. 2016 Dec 6;188(17–18):E466–E473.
966:, New Zealand's two-time world champion and Olympic champion rower, was diagnosed with SVT in 2013 when he was 27 years old. 2691: 2528: 1935: 1702: 928: 2882: 2696: 2686: 2275: 658: 2993: 2824: 2438: 1781: 385:
treated. The rapid heart rate, if fast enough, reduces the opportunity for the "pump" to fill between beats decreasing
2864: 1320: 1262: 1174: 2859: 1964: 2728: 2509: 482:-Imaging with start (red arrow) and end (blue arrow) of a SV-tachycardia with a pulse frequency of about 128/min. 2804: 2799: 2723: 796: 782: 772: 667: 634: 620: 132: 116: 108: 2008: 3150: 3026: 2955: 2787: 2523: 741: 578: 128: 502:, although, occasionally, electrical conduction abnormalities may produce a wide QRS complex that may mimic 3145: 2938: 2921: 2854: 2153: 541: 525:
surge associated with fright, stress, or physical activity, provokes the tachycardia. It is identical to a
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Specific treatment depends on the type of SVT and can include medications, medical procedures, or surgery.
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Hadid C. Sustained ventricular tachycardia in structural heart disease. Cardiol J. 2015;22(1):12–24.
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case of AVNRT. Similar high rates of success are achieved with AVRT and typical atrial flutter.
761:(Without rapid ventricular response, fibrillation and flutter are usually not classified as SVT) 2794: 2760: 2703: 2681: 2503: 2485: 2421: 2288: 2241: 2169: 1339:
Mahtani AU, Nair DG. Supraventricular Tachycardia. Med Clin North Am. 2019 Sep;103(5):863–879.
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chaos, stimulate a response from the ventricles in the form of irregular, narrow QRS complexes.
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Sound of a 20 year old male's heart in an episode of paroxysmal supraventricular tachycardia.
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A 12-lead ECG showing paroxysmal supraventricular tachycardia at about 180 beats per minute.
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Atrial fibrillation: Irregular impulses reaching AV node, only some being transmitted.
393:. The following symptoms are typical with a rate of 150–270 or more beats per minute: 3222: 3073: 3031: 2946: 2764: 2662: 2379: 2322: 2220: 1979: 1518: 1484: 1480: 1442: 1418: 1390: 1348: 1316: 1258: 1230: 1170: 1080: 856: 518: 452: 308: 286: 266: 215: 163: 158: 124: 60: 48: 1496: 671: 3195: 3087: 2980: 2676: 1839: 1510: 1476: 1450: 1434: 1410: 1340: 1220: 1210: 1072: 352: 328: 700:, then entering ventricle. Rhythm originating at or above AV node constitutes SVT. 3217: 2609: 2590: 2577: 2384: 2263: 2138: 2126: 2049: 1717: 1706: 975: 716: 304: 282: 1699: 1535: 533: 3210: 3118: 3016: 3008: 2906: 2416: 2409: 2396: 1344: 951: 753: 727: 638: 609: 553: 549: 479: 390: 386: 320: 270: 250: 223: 207: 167: 100: 2096: 1312:
Bennett's Cardiac Arrhythmias: Practical Notes on Interpretation and Treatment
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arrhythmias and pacing vol. 30,1 (2011): 55-61. doi:10.1007/s10840-010-9530-4
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Permanent (or persistent) junctional reciprocating tachycardia (PJRT)
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Katritsis, Demosthenes G.; Camm, A. John; Gersh, Bernard J. (2016).
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may be used for rate control, and selected patients benefit from
210:. This is in contrast to the other group of fast heart rhythms – 1754:"Abnormal coronary condition where the heart falls out of synch" 1197:
Zoni-Berisso, M; Lercari, F; Carazza, T; Domenicucci, S (2014).
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Atrial fibrillation: Red dots show atrial fibrillation activity.
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Acute attacks of supraventricular tachycardia are treated with
552:). It may sometimes be distinguished by its prompt response to 410: 1710: 311:, may be effective in certain types. For atrial fibrillation, 855:, or the elderly. Episodes can be treated when they occur by 532:
Sinoatrial node reentrant tachycardia (SANRT) is caused by a
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may be done to rule out specific underlying causes such as
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is physiologic when a reasonable stimulus, such as the
1936:"Heart trouble rules Cohen out of rowing World Champs" 775:(AVNRT) or junctional reciprocating tachycardia (JRT) 300:, the heart beats about 150 to 220 times per minute. 2054: 1286:"Supraventricular tachycardia – Symptoms and causes" 868:
the arrhythmia is initiated and its mode of spread.
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Subtypes of SVT can often be distinguished by their
1000:"What Are the Signs and Symptoms of an Arrhythmia?" 257:. They are generally due to one of two mechanisms: 2168: 1162: 581:(MAT) is tachycardia arising from at least three 3235: 1166:Clinical Cardiology: Current Practice Guidelines 670:(JET) is a rare tachycardia caused by increased 1928: 1700:Re-entrant Supraventricular Tachycardia (RSVT) 1065:Critical Care Nursing Clinics of North America 1062: 2154: 1888:"Rowing | Bad day for New Zealand crews" 1730:"USA Volleyball 2008 Olympic Games Press Kit" 1582: 1580: 1536:https://www.ncbi.nlm.nih.gov/books/NBK507699/ 1098: 1096: 1094: 1033: 1031: 1029: 1027: 1025: 723:Sinoatrial nodal reentrant tachycardia (SNRT) 249:These abnormal rhythms start from either the 2001:"Miley Cyrus Opens Up About Heart Condition" 1885: 1395:: CS1 maint: multiple names: authors list ( 994: 992: 1862:"Paul Bearer Cause of Death – Heart Attack" 1129: 1127: 1125: 1123: 1121: 447:Mechanisms of supraventricular tachycardias 2471:Arrhythmogenic right ventricular dysplasia 2161: 2147: 2043:Cardiac Disorders – Open Directory Project 1577: 1257:. Elsevier Health Sciences. p. 1372. 1192: 1190: 1091: 1022: 631:Atrioventricular reciprocating tachycardia 498:(ECG) characteristics. Most have a narrow 38: 1952:Scott Brady of punk band Brave The Wild ( 1246: 1244: 1224: 1214: 1158: 1156: 989: 1365:Iyer, V. Ramesh, MD, MRCP (2014-03-26). 1169:. Oxford University Press. p. 538. 1118: 1058: 1056: 703: 687: 649:complexes, due to retrograde conduction. 592: 485: 474: 442: 181:Medications, medical procedures, surgery 139:, SA Nodal Reentrant Tachycardia (SANRT) 1676:"What Is Supraventricular Tachycardia?" 1651:"What Is Supraventricular Tachycardia?" 1377:from the original on September 11, 2014 1308: 1187: 1114:from the original on February 18, 2015. 875:unmask the underlying abnormal rhythm. 228:paroxysmal supraventricular tachycardia 105:paroxysmal supraventricular tachycardia 3236: 2205:Spontaneous coronary artery dissection 1984:: CS1 maint: archived copy as title ( 1241: 1153: 885: 2142: 1912:. Radio New Zealand. 26 August 2013. 1469:Pacing and Clinical Electrophysiology 1466: 1315:. John Wiley & Sons. p. 49. 1250: 1053: 1010:from the original on 19 February 2015 948:, American Gold Medal Olympic swimmer 942:, American Gold Medal Olympic swimmer 435:and/or a decrease in responsiveness. 334: 152:increased cardiac muscle automaticity 2529:Nonbacterial thrombotic endocarditis 1942:from the original on 1 November 2013 1916:from the original on 2 November 2013 1601:The Lecturio Medical Concept Library 1364: 1280: 1278: 929:Prime Minister of the United Kingdom 218:. There are four main types of SVT: 1371:Children's Hospital of Philadelphia 779:AV reciprocating tachycardia (AVRT) 13: 2825:Accelerated idioventricular rhythm 1049:from the original on June 7, 2015. 781:– visible or concealed (including 627:the regular, narrow QRS complexes. 438: 353:Supraventricular Tachycardia Sound 341: 238:, feeling of faintness, sweating, 14: 3255: 2036: 1784:. News of the World. 3 Nov 2008. 1275: 683: 1782:"Anastacia delays heart surgery" 1481:10.1046/j.1460-9592.2002.00822.x 1329:from the original on 2016-10-02. 1271:from the original on 2016-10-02. 1183:from the original on 2016-10-02. 1104:"How Are Arrhythmias Diagnosed?" 375:Problems playing this file? See 357: 2510:Subacute bacterial endocarditis 2023: 1993: 1967:from the original on 2017-09-08 1902: 1886:Ian Anderson (27 August 2013). 1879: 1868:from the original on 2013-11-02 1854: 1828: 1800: 1788:from the original on 2012-03-14 1774: 1746: 1722: 1693: 1668: 1643: 1633: 1624: 1615: 1597:"Supraventricular Tachycardias" 1589: 1567: 1558: 1549: 1540: 1528: 1503: 1460: 1427: 1403: 1358: 1333: 1302: 756:with rapid ventricular response 750:with rapid ventricular response 234:. The symptoms of SVT include 1367:"Supraventricular Tachycardia" 1135:"How Are Arrhythmias Treated?" 901:, third-place finisher in the 797:Junctional ectopic tachycardia 783:Wolff-Parkinson-White syndrome 773:AV nodal reentrant tachycardia 668:Junctional ectopic tachycardia 635:Wolff-Parkinson-White syndrome 621:AV nodal reentrant tachycardia 451:The main pumping chamber, the 232:Wolff–Parkinson–White syndrome 109:Wolff-Parkinson-White syndrome 1: 3027:Pulseless electrical activity 2956:Multifocal atrial tachycardia 2830:Catecholaminergic polymorphic 1254:Ferri's Clinical Advisor 2017 982: 972:, American singer and actress 936:, American singer-songwriter. 803: 742:Multifocal atrial tachycardia 579:Multifocal atrial tachycardia 463:. A congenital heart lesion, 1816:. Los Angeles. 20 March 2008 954:, Australian football player 846: 550:continuous monitoring device 470: 265:. Diagnosis is typically by 196:Supraventricular tachycardia 25:Supraventricular tachycardia 16:Abnormally fast heart rhythm 7: 569:primitive, inborn, inherent 216:lower chambers of the heart 80:, feeling faint, sweating, 33:Supraventricular arrhythmia 10: 3260: 2971:Wandering atrial pacemaker 2518:non-infective endocarditis 2459:Endocardial fibroelastosis 1345:10.1016/j.mcna.2019.05.007 1309:Bennett, David H. (2012). 544:of normal shape and size ( 307:, or a procedure known as 202:) is an umbrella term for 51:strip showing PSVT with a 3188: 3131: 3049:hexaxial reference system 3040: 3007: 2994:Jervell and Lange-Nielsen 2979: 2937: 2896: 2873: 2847: 2815: 2773: 2754: 2653: 2639: 2539: 2524:Libman–Sacks endocarditis 2493: 2479: 2395: 2344: 2337: 2274: 2229: 2186: 2177: 2058: 1077:10.1016/j.cnc.2016.04.005 905:, bronze medalist in the 536:circuit localised to the 323:(anticoagulants) such as 291:electrolyte abnormalities 214:, which start within the 185: 177: 157: 143: 92: 71: 59: 46: 37: 29: 24: 2929:Ventricular fibrillation 2200:Coronary artery aneurysm 1938:. TVNZ. 26 August 2013. 897:, American professional 508:ventricular fibrillation 313:calcium channel blockers 3206:Diastolic heart failure 3180:Athletic heart syndrome 3141:Ventricular hypertrophy 2875:Pre-excitation syndrome 2729:Left posterior fascicle 2254:Acute coronary syndrome 2194:Coronary artery disease 1864:. TMZ.com. 2013-03-23. 1251:Ferri, Fred F. (2016). 824:Radiofrequency ablation 504:ventricular tachycardia 212:ventricular tachycardia 208:upper part of the heart 2724:Left anterior fascicle 2504:infective endocarditis 2289:Hibernating myocardium 2170:Cardiovascular disease 1705:June 19, 2006, at the 890:Notable cases of SVT: 863:injection or taking a 853:ischemic heart disease 709: 701: 696:, traversing atria to 598: 491: 483: 448: 346: 263:increased automaticity 2888:Wolff–Parkinson–White 2848:Premature contraction 2746:Adams–Stokes syndrome 2449:Loeffler endocarditis 2259:Myocardial infarction 2007:. MTV. Archived from 1762:. UK. 20 October 2003 1515:10.5603/CJ.a2014.0069 1203:Clinical Epidemiology 1039:"Types of Arrhythmia" 707: 691: 596: 489: 478: 457:atrioventricular node 446: 429:Loss of consciousness 345: 255:atrioventricular node 3055:Right axis deviation 3017:Sudden cardiac death 2375:Pericardial effusion 2318:Ventricular aneurysm 1441:. Epub 2016 Oct 24. 1417:. Epub 2019 Dec 17. 920:2008 Summer Olympics 907:2004 Summer Olympics 329:novel anticoagulants 3060:Left axis deviation 2917:Atrial fibrillation 2912:Ventricular flutter 2835:Torsades de pointes 2709:Bundle branch block 2668:Sick sinus syndrome 2454:Cardiac amyloidosis 2439:Tachycardia-induced 2294:Myocardial stunning 2242:Prinzmetal's angina 2211:Coronary thrombosis 1735:. Usavolleyball.org 1517:. Epub 2014 Oct 9. 1439:10.1503/cmaj.160079 1415:10.1055/a-0819-7328 1216:10.2147/CLEP.S47385 960:, wrestling manager 912:Tayyiba Haneef-Park 903:1998 Tour de France 886:Society and culture 748:Atrial fibrillation 734:Ectopic (unifocal) 692:Impulse arising in 614:antiarrhythmic drug 603:Atrial fibrillation 559:Ectopic (unifocal) 527:normal sinus rhythm 406:Shortness of breath 240:shortness of breath 220:atrial fibrillation 97:Atrial fibrillation 82:shortness of breath 3244:Cardiac arrhythmia 3163:Atrial enlargement 2961:Pacemaker syndrome 2883:Lown–Ganong–Levine 2805:Junctional ectopic 2800:AV nodal reentrant 2306:Myocardial rupture 2216:Coronary vasospasm 2048:2017-03-16 at the 1813:The New York Times 1716:2007-07-03 at the 1603:. 9 September 2020 918:competitor in the 736:atrial tachycardia 710: 702: 599: 561:atrial tachycardia 492: 484: 449: 347: 335:Signs and symptoms 204:fast heart rhythms 137:Atrial tachycardia 3231: 3230: 3223:Obstructive shock 3127: 3126: 3074:Short QT syndrome 3041:Other / ungrouped 3032:Sinoatrial arrest 2947:Ectopic pacemaker 2843: 2842: 2663:Sinus bradycardia 2635: 2634: 2631: 2630: 2380:Cardiac tamponade 2333: 2332: 2323:Dressler syndrome 2221:Myocardial bridge 2136: 2135: 857:Valsalva maneuver 540:, resulting in a 519:Sinus tachycardia 496:electrocardiogram 465:Ebstein's anomaly 389:and consequently 362: 309:catheter ablation 287:pheochromocytomas 267:electrocardiogram 206:arising from the 193: 192: 164:Electrocardiogram 159:Diagnostic method 125:Sinus Tachycardia 49:electrocardiogram 19:Medical condition 3251: 3196:Cardiac fibrosis 3088:T wave alternans 2981:Long QT syndrome 2775:Supraventricular 2771: 2770: 2704:Intraventricular 2651: 2650: 2491: 2490: 2342: 2341: 2187:Coronary disease 2184: 2183: 2163: 2156: 2149: 2140: 2139: 2056: 2055: 2030: 2027: 2021: 2020: 2018: 2016: 2011:on March 4, 2017 1997: 1991: 1989: 1983: 1975: 1973: 1972: 1951: 1949: 1947: 1932: 1926: 1925: 1923: 1921: 1906: 1900: 1899: 1897: 1895: 1883: 1877: 1876: 1874: 1873: 1858: 1852: 1851: 1849: 1847: 1840:The Mercury News 1832: 1826: 1825: 1823: 1821: 1804: 1798: 1797: 1795: 1793: 1778: 1772: 1771: 1769: 1767: 1750: 1744: 1743: 1741: 1740: 1734: 1726: 1720: 1697: 1691: 1690: 1688: 1686: 1672: 1666: 1665: 1663: 1661: 1647: 1641: 1637: 1631: 1628: 1622: 1619: 1613: 1612: 1610: 1608: 1593: 1587: 1584: 1575: 1571: 1565: 1562: 1556: 1553: 1547: 1544: 1538: 1532: 1526: 1507: 1501: 1500: 1464: 1458: 1431: 1425: 1407: 1401: 1400: 1394: 1386: 1384: 1382: 1362: 1356: 1337: 1331: 1330: 1306: 1300: 1299: 1297: 1296: 1282: 1273: 1272: 1248: 1239: 1238: 1228: 1218: 1194: 1185: 1184: 1160: 1151: 1150: 1148: 1146: 1131: 1116: 1115: 1110:. July 1, 2011. 1100: 1089: 1088: 1060: 1051: 1050: 1045:. July 1, 2011. 1035: 1020: 1019: 1017: 1015: 1006:. July 1, 2011. 996: 766:Atrioventricular 643:AV valvular ring 402:Rapid heart beat 364: 363: 344: 299: 42: 22: 21: 3259: 3258: 3254: 3253: 3252: 3250: 3249: 3248: 3234: 3233: 3232: 3227: 3218:Rheumatic fever 3184: 3123: 3036: 3003: 2975: 2933: 2892: 2869: 2839: 2811: 2758: 2750: 2644: 2627: 2535: 2484: 2475: 2391: 2385:Hemopericardium 2329: 2270: 2264:Unstable angina 2237:Angina pectoris 2230:Active ischemia 2225: 2173: 2167: 2137: 2132: 2131: 2067: 2050:Wayback Machine 2039: 2034: 2033: 2028: 2024: 2014: 2012: 1999: 1998: 1994: 1977: 1976: 1970: 1968: 1955:"Archived copy" 1953: 1945: 1943: 1934: 1933: 1929: 1919: 1917: 1908: 1907: 1903: 1893: 1891: 1884: 1880: 1871: 1869: 1860: 1859: 1855: 1845: 1843: 1834: 1833: 1829: 1819: 1817: 1806: 1805: 1801: 1791: 1789: 1780: 1779: 1775: 1765: 1763: 1752: 1751: 1747: 1738: 1736: 1732: 1728: 1727: 1723: 1718:Wayback Machine 1711:BobbyJulich.com 1707:Wayback Machine 1698: 1694: 1684: 1682: 1674: 1673: 1669: 1659: 1657: 1649: 1648: 1644: 1638: 1634: 1629: 1625: 1620: 1616: 1606: 1604: 1595: 1594: 1590: 1585: 1578: 1572: 1568: 1563: 1559: 1554: 1550: 1545: 1541: 1533: 1529: 1508: 1504: 1465: 1461: 1432: 1428: 1408: 1404: 1388: 1387: 1380: 1378: 1363: 1359: 1338: 1334: 1323: 1307: 1303: 1294: 1292: 1284: 1283: 1276: 1265: 1249: 1242: 1195: 1188: 1177: 1161: 1154: 1144: 1142: 1133: 1132: 1119: 1102: 1101: 1092: 1061: 1054: 1037: 1036: 1023: 1013: 1011: 998: 997: 990: 985: 976:George Plimpton 888: 849: 806: 686: 554:vagal maneuvers 473: 441: 439:Pathophysiology 416:Rapid breathing 382: 381: 373: 371: 370: 369: 368: 365: 358: 355: 348: 342: 337: 305:Vagal maneuvers 297: 283:hyperthyroidism 20: 17: 12: 11: 5: 3257: 3247: 3246: 3229: 3228: 3226: 3225: 3220: 3215: 3214: 3213: 3211:Cardiac asthma 3208: 3198: 3192: 3190: 3186: 3185: 3183: 3182: 3177: 3176: 3175: 3170: 3160: 3159: 3158: 3153: 3148: 3137: 3135: 3129: 3128: 3125: 3124: 3122: 3121: 3119:Strain pattern 3116: 3115: 3114: 3109: 3104: 3092: 3091: 3090: 3078: 3077: 3076: 3064: 3063: 3062: 3057: 3044: 3042: 3038: 3037: 3035: 3034: 3029: 3024: 3019: 3013: 3011: 3009:Cardiac arrest 3005: 3004: 3002: 3001: 2996: 2991: 2989:Andersen–Tawil 2985: 2983: 2977: 2976: 2974: 2973: 2968: 2963: 2958: 2953: 2943: 2941: 2935: 2934: 2932: 2931: 2926: 2925: 2924: 2914: 2909: 2907:Atrial flutter 2903: 2901: 2894: 2893: 2891: 2890: 2885: 2879: 2877: 2871: 2870: 2868: 2867: 2862: 2857: 2851: 2849: 2845: 2844: 2841: 2840: 2838: 2837: 2832: 2827: 2821: 2819: 2813: 2812: 2810: 2809: 2808: 2807: 2802: 2792: 2791: 2790: 2779: 2777: 2768: 2752: 2751: 2749: 2748: 2743: 2742: 2741: 2736: 2731: 2726: 2721: 2716: 2706: 2701: 2700: 2699: 2694: 2689: 2679: 2670: 2665: 2659: 2657: 2648: 2637: 2636: 2633: 2632: 2629: 2628: 2626: 2625: 2624: 2623: 2618: 2606: 2605: 2604: 2599: 2587: 2586: 2585: 2580: 2568: 2567: 2566: 2561: 2556: 2543: 2541: 2537: 2536: 2534: 2533: 2532: 2531: 2526: 2514: 2513: 2512: 2499: 2497: 2488: 2477: 2476: 2474: 2473: 2468: 2467: 2466: 2461: 2456: 2451: 2446: 2441: 2436: 2431: 2430: 2429: 2417:Cardiomyopathy 2414: 2413: 2412: 2410:Chagas disease 2401: 2399: 2393: 2392: 2390: 2389: 2388: 2387: 2382: 2372: 2371: 2370: 2361: 2350: 2348: 2339: 2335: 2334: 2331: 2330: 2328: 2327: 2326: 2325: 2320: 2310: 2309: 2308: 2298: 2297: 2296: 2291: 2280: 2278: 2272: 2271: 2269: 2268: 2267: 2266: 2261: 2251: 2250: 2249: 2244: 2233: 2231: 2227: 2226: 2224: 2223: 2218: 2213: 2208: 2202: 2197: 2190: 2188: 2181: 2175: 2174: 2166: 2165: 2158: 2151: 2143: 2134: 2133: 2130: 2129: 2118: 2099: 2084: 2068: 2063: 2062: 2060: 2059:Classification 2053: 2052: 2038: 2037:External links 2035: 2032: 2031: 2022: 1992: 1927: 1901: 1878: 1853: 1827: 1799: 1773: 1745: 1721: 1692: 1667: 1642: 1632: 1623: 1614: 1588: 1576: 1566: 1557: 1548: 1539: 1527: 1502: 1475:(5): 822–827. 1459: 1426: 1402: 1357: 1332: 1321: 1301: 1274: 1263: 1240: 1186: 1175: 1152: 1141:. July 1, 2011 1117: 1090: 1071:(3): 309–316. 1052: 1021: 987: 986: 984: 981: 980: 979: 973: 967: 961: 955: 952:Neville Fields 949: 943: 937: 931: 922: 909: 887: 884: 848: 845: 805: 802: 801: 800: 794: 793: 792: 776: 763: 762: 758: 757: 754:Atrial flutter 751: 745: 739: 725: 724: 685: 684:Classification 682: 681: 680: 665: 664: 663: 650: 639:bundle of Kent 628: 618: 610:Atrial flutter 607: 591: 590: 576: 557: 530: 480:Holter monitor 472: 469: 440: 437: 432: 431: 426: 423: 418: 413: 408: 403: 400: 398:Pounding heart 391:blood pressure 387:cardiac output 372: 366: 356: 351: 350: 349: 340: 339: 338: 336: 333: 321:blood thinners 271:Holter monitor 224:atrial flutter 191: 190: 187: 183: 182: 179: 175: 174: 168:Holter monitor 161: 155: 154: 145: 141: 140: 101:atrial flutter 94: 90: 89: 75: 69: 68: 63: 57: 56: 44: 43: 35: 34: 31: 27: 26: 18: 15: 9: 6: 4: 3: 2: 3256: 3245: 3242: 3241: 3239: 3224: 3221: 3219: 3216: 3212: 3209: 3207: 3204: 3203: 3202: 3201:Heart failure 3199: 3197: 3194: 3193: 3191: 3187: 3181: 3178: 3174: 3171: 3169: 3166: 3165: 3164: 3161: 3157: 3154: 3152: 3149: 3147: 3144: 3143: 3142: 3139: 3138: 3136: 3134: 3130: 3120: 3117: 3113: 3112:ST depression 3110: 3108: 3105: 3103: 3100: 3099: 3098: 3097: 3093: 3089: 3086: 3085: 3084: 3083: 3079: 3075: 3072: 3071: 3070: 3069: 3065: 3061: 3058: 3056: 3053: 3052: 3051: 3050: 3046: 3045: 3043: 3039: 3033: 3030: 3028: 3025: 3023: 3020: 3018: 3015: 3014: 3012: 3010: 3006: 3000: 2997: 2995: 2992: 2990: 2987: 2986: 2984: 2982: 2978: 2972: 2969: 2967: 2964: 2962: 2959: 2957: 2954: 2952: 2948: 2945: 2944: 2942: 2940: 2936: 2930: 2927: 2923: 2920: 2919: 2918: 2915: 2913: 2910: 2908: 2905: 2904: 2902: 2900: 2895: 2889: 2886: 2884: 2881: 2880: 2878: 2876: 2872: 2866: 2863: 2861: 2858: 2856: 2853: 2852: 2850: 2846: 2836: 2833: 2831: 2828: 2826: 2823: 2822: 2820: 2818: 2814: 2806: 2803: 2801: 2798: 2797: 2796: 2793: 2789: 2786: 2785: 2784: 2781: 2780: 2778: 2776: 2772: 2769: 2766: 2762: 2757: 2753: 2747: 2744: 2740: 2739:Trifascicular 2737: 2735: 2732: 2730: 2727: 2725: 2722: 2720: 2717: 2715: 2712: 2711: 2710: 2707: 2705: 2702: 2698: 2695: 2693: 2690: 2688: 2685: 2684: 2683: 2680: 2678: 2674: 2671: 2669: 2666: 2664: 2661: 2660: 2658: 2656: 2652: 2649: 2647: 2642: 2638: 2622: 2621:regurgitation 2619: 2617: 2614: 2613: 2612: 2611: 2607: 2603: 2602:regurgitation 2600: 2598: 2595: 2594: 2593: 2592: 2588: 2584: 2583:regurgitation 2581: 2579: 2576: 2575: 2574: 2573: 2569: 2565: 2564:regurgitation 2562: 2560: 2557: 2555: 2552: 2551: 2550: 2549: 2545: 2544: 2542: 2538: 2530: 2527: 2525: 2522: 2521: 2520: 2519: 2515: 2511: 2508: 2507: 2506: 2505: 2501: 2500: 2498: 2496: 2492: 2489: 2487: 2482: 2478: 2472: 2469: 2465: 2462: 2460: 2457: 2455: 2452: 2450: 2447: 2445: 2442: 2440: 2437: 2435: 2432: 2428: 2425: 2424: 2423: 2420: 2419: 2418: 2415: 2411: 2408: 2407: 2406: 2403: 2402: 2400: 2398: 2394: 2386: 2383: 2381: 2378: 2377: 2376: 2373: 2369: 2365: 2362: 2360: 2357: 2356: 2355: 2352: 2351: 2349: 2347: 2343: 2340: 2336: 2324: 2321: 2319: 2316: 2315: 2314: 2311: 2307: 2304: 2303: 2302: 2299: 2295: 2292: 2290: 2287: 2286: 2285: 2282: 2281: 2279: 2277: 2273: 2265: 2262: 2260: 2257: 2256: 2255: 2252: 2248: 2247:Stable angina 2245: 2243: 2240: 2239: 2238: 2235: 2234: 2232: 2228: 2222: 2219: 2217: 2214: 2212: 2209: 2206: 2203: 2201: 2198: 2195: 2192: 2191: 2189: 2185: 2182: 2180: 2176: 2171: 2164: 2159: 2157: 2152: 2150: 2145: 2144: 2141: 2128: 2124: 2123: 2119: 2117: 2113: 2109: 2108: 2104: 2100: 2098: 2094: 2093: 2089: 2085: 2083: 2079: 2078: 2074: 2070: 2069: 2066: 2061: 2057: 2051: 2047: 2044: 2041: 2040: 2026: 2010: 2006: 2002: 1996: 1987: 1981: 1966: 1962: 1961: 1956: 1941: 1937: 1931: 1915: 1911: 1905: 1890:. Stuff.co.nz 1889: 1882: 1867: 1863: 1857: 1842:. 30 May 2012 1841: 1837: 1831: 1815: 1814: 1809: 1803: 1787: 1783: 1777: 1761: 1760: 1755: 1749: 1731: 1725: 1719: 1715: 1712: 1708: 1704: 1701: 1696: 1681: 1677: 1671: 1656: 1652: 1646: 1636: 1627: 1618: 1602: 1598: 1592: 1583: 1581: 1570: 1561: 1552: 1543: 1537: 1531: 1524: 1520: 1516: 1512: 1506: 1498: 1494: 1490: 1486: 1482: 1478: 1474: 1470: 1463: 1456: 1452: 1448: 1444: 1440: 1436: 1430: 1424: 1420: 1416: 1412: 1406: 1398: 1392: 1376: 1372: 1368: 1361: 1354: 1350: 1346: 1342: 1336: 1328: 1324: 1322:9781118432402 1318: 1314: 1313: 1305: 1291: 1287: 1281: 1279: 1270: 1266: 1264:9780323448383 1260: 1256: 1255: 1247: 1245: 1236: 1232: 1227: 1222: 1217: 1212: 1208: 1204: 1200: 1193: 1191: 1182: 1178: 1176:9780198733324 1172: 1168: 1167: 1159: 1157: 1140: 1136: 1130: 1128: 1126: 1124: 1122: 1113: 1109: 1105: 1099: 1097: 1095: 1086: 1082: 1078: 1074: 1070: 1066: 1059: 1057: 1048: 1044: 1040: 1034: 1032: 1030: 1028: 1026: 1009: 1005: 1001: 995: 993: 988: 977: 974: 971: 968: 965: 962: 959: 956: 953: 950: 947: 944: 941: 938: 935: 932: 930: 926: 923: 921: 917: 913: 910: 908: 904: 900: 896: 893: 892: 891: 883: 881: 876: 872: 869: 866: 862: 858: 854: 844: 840: 837: 836:nitrous oxide 832: 828: 825: 821: 819: 815: 814:beta blockers 810: 798: 795: 790: 787: 786: 784: 780: 777: 774: 771: 770: 769: 767: 760: 759: 755: 752: 749: 746: 743: 740: 737: 733: 732: 731: 729: 722: 721: 720: 718: 714: 706: 699: 695: 690: 678: 677:drug toxicity 673: 669: 666: 660: 656: 655:bundle of His 651: 647: 646: 644: 641:crossing the 640: 636: 632: 629: 626: 622: 619: 615: 611: 608: 604: 601: 600: 595: 588: 584: 580: 577: 574: 570: 566: 562: 558: 555: 551: 547: 543: 539: 535: 531: 528: 524: 523:catecholamine 520: 517: 516: 515: 513: 509: 505: 501: 497: 488: 481: 477: 468: 466: 462: 458: 454: 445: 436: 430: 427: 424: 422: 419: 417: 414: 412: 409: 407: 404: 401: 399: 396: 395: 394: 392: 388: 380: 378: 354: 332: 330: 326: 322: 318: 317:beta blockers 314: 310: 306: 301: 294: 292: 288: 284: 280: 276: 275:event monitor 272: 268: 264: 260: 256: 252: 247: 245: 241: 237: 233: 229: 225: 221: 217: 213: 209: 205: 201: 197: 188: 184: 180: 176: 173: 172:event monitor 169: 165: 162: 160: 156: 153: 149: 146: 142: 138: 134: 130: 126: 122: 118: 114: 110: 106: 102: 98: 95: 91: 87: 83: 79: 76: 74: 70: 67: 64: 62: 58: 54: 50: 45: 41: 36: 32: 28: 23: 3133:Cardiomegaly 3107:ST elevation 3094: 3080: 3066: 3047: 2951:Ectopic beat 2899:fibrillation 2774: 2734:Bifascicular 2608: 2589: 2570: 2546: 2516: 2502: 2495:Endocarditis 2434:Hypertrophic 2368:Constrictive 2354:Pericarditis 2312: 2300: 2283: 2120: 2101: 2086: 2071: 2025: 2013:. 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Index


electrocardiogram
heart rate
Specialty
Cardiology
Symptoms
Palpitations
shortness of breath
chest pain
Atrial fibrillation
atrial flutter
paroxysmal supraventricular tachycardia
Wolff-Parkinson-White syndrome
AVRT
AVNRT
PJRT
Sinus Tachycardia
MAT
JET
Atrial tachycardia
Re-entry
increased cardiac muscle automaticity
Diagnostic method
Electrocardiogram
Holter monitor
event monitor
fast heart rhythms
upper part of the heart
ventricular tachycardia
lower chambers of the heart

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