View source for Tachycardia induced cardiomyopathy

{{Infobox Disease |
ICD10 = {{ICD10|I|42|9|i|30}}
}}
'''Tachycardia induced cardiomyopathy''', also known as '''chronotropic cardiomyopathy''' and '''tachycardiomyopathy''', is a weakening of the [[myocardium]] (the muscle of the [[heart]]) that is due to prolonged periods of a [[tachycardia|fast heart rate]].

The rate and duration of the elevation in heart rate necessary to cause a [[cardiomyopathy]] is unclear and is likely dependent on a number of unknown factors.

==Treatment==
The primary treatment for a tachycardia induced cardiomyopathy is correct the underlying tachycardia.  Supportive agents such as [[beta blocker]]s and [[ACE inhibitor]]s / [[Angiotensin II receptor antagonist|angiotensin receptor blockers]] are of benefit to try to prevent remodeling of the [[left ventricle]].

If the tachycardia can be abolished, the heart muscle can recover after some time.<ref>{{cite journal | author=Calo L, Sciarra L, Scioli R, Lamberti F, Loricchio ML, Pandozi C, Santini M. | title=Recovery of cardiac function after ablation of atrial tachycardia arising from the tricuspid annulus.| journal=Ital Heart J. | year=2005 | volume=6 | issue=8 | pages=652–7 | pmid=16161499}}</ref>

Not only is there a need to control the tachycardia that is responsible for causing tachycardia induced cardiomyopathy, but also treating underlying conditions that cause tachycardia.  For instance, treatment of [[hyperthyroidism]] can also lead to reversal of tachycardia induced cardiomyopathy.

==See also==
* [[Cardiomyopathy]]
* [[Congestive heart failure]]

==References==
{{reflist}}

[[Category:Cardiology]]
[[Category:Cardiomyopathy]]

{{disease-stub}}
[[Category:2Fix]]