Tachycardia-induced cardiomyopathy

Tachycardia-induced cardiomyopathy
Other namesArrhythmia-induced cardiomyopathy, tachycardia-mediated cardiomyopathy, tachymyopathy, chronotropic cardiomyopathy, tachycardiomyopathy
Pronunciation
  • tak-i-kahr-dee-uh in-dyoos-duh kahr-dee-oh-mahy-op-uh-thee
SpecialtyCardiology 
Symptomsshortness of breath, ankle swelling, fatigue, weight gain, palpitations, chest discomfort [1][2]
Durationshort or long term[1]
Causesfast or irregular heart rhythm[1]
Risk factorsProlonged tachycardia[3][4]
Treatmentantiarrythmic agents, diuretics, catheter ablation, pacemaker[1]

Tachycardia-induced cardiomyopathy (TIC) is a disease where prolonged tachycardia (a fast heart rate) or arrhythmia (an irregular heart rhythm) causes an impairment of the myocardium (heart muscle), which can result in heart failure.[1][5] People with TIC may have symptoms associated with heart failure (e.g. shortness of breath or ankle swelling) or symptoms related to the tachycardia or arrhythmia (e.g. palpitations).[1][2] Though atrial fibrillation is the most common cause of TIC, several tachycardias and arrhythmias have been associated with the disease.[5][1]

There are no formal diagnostic criteria for TIC. Thus, TIC is typically diagnosed when (1) tests have excluded other causes of cardiomyopathy and (2) there is improvement in myocardial function after treatment of the tachycardia or arrhythmia.[1][5][6] Treatment of TIC can involve treating the heart failure as well as the tachycardia or arrhythmia.[1] TIC has a good prognosis with treatment, with most people recovering some to all of their heart function.[1]

The number of cases that occur is unclear.[5] TIC has been reported in all age groups.[6]

  1. ^ a b c d e f g h i j Ellis, Ethan R.; Josephson, Mark E. (2013-12-01). "Heart failure and tachycardia-induced cardiomyopathy". Current Heart Failure Reports. 10 (4): 296–306. doi:10.1007/s11897-013-0150-z. ISSN 1546-9549. PMID 23963583. S2CID 24317606.
  2. ^ a b Sabatine, Marc S. (2013-10-07). Pocket Medicine: The Massachusetts General Hospital Handbook of Internal Medicine. Lippincott Williams & Wilkins. ISBN 9781451193787.
  3. ^ Povolný, J (2015). "Tachycardia-induced cardiomyopathy". Vnitrni Lekarstvi (in Czech). 61 (1): 56–9. ISSN 0042-773X. PMID 25693617.
  4. ^ Ellis, ER; Josephson, ME (2013). "What About Tachycardia-induced Cardiomyopathy?". Arrhythmia & Electrophysiology Review. 2 (2): 82–90. doi:10.15420/aer.2013.2.2.82. PMC 4711573. PMID 26835045.
  5. ^ a b c d Cite error: The named reference :0 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference :3 was invoked but never defined (see the help page).
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