Heart disease

Can anyone tell me how long it takes for tachycardia to weaken heart muscle. Trying to figure out how I may have gotten cardiomyopathy. I have had out of control tachycardia for quite a while but is now somewhat controled by meds. Would love to know how long before it starts to weaken heart. Thanks

[CCFHeartMD11]

Unofrtunately, the actual rate and duration of tachycardia needed to cause a cardiomyopathy is unknown. Certainly, the longer a patient is tachycardic and the faster the rate, the more likely they are to develop cardiomyopathy, but there is not a cutoff at which it becomes "most likely" or "certain".

The important thing is to control the heart rate, and in some cases also control the rhythm. This can often improve heart function. If you develop a cardiomyopathy, you should also be started on a good heart failure regimen to help prevent further negative remodeling (such as a beta blocker and ACE inhibitor).

[Danabrod]

Thank you so much ccfheartmd11 for your response. Helped alot,good to know.