What is the prognosis of dilated cardiomyopathy?

Updated: Nov 28, 2018
  • Author: Vinh Q Nguyen, MD; Chief Editor: Gyanendra K Sharma, MD, FACC, FASE  more...
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Answer

Although some cases of dilated cardiomyopathy reverse with treatment of the underlying disease, many progress inexorably to heart failure. With continued decompensation, mechanical circulatory support or heart transplantation may be necessary.

The prognosis for patients with heart failure depends on several factors, with the etiology of disease being the primary factor. Other factors play important roles in determining prognosis; for example, higher mortality rates are associated with increased age, male sex, and severe congestive heart failure (CHF). Prognostic indices include the New York Heart Association (NYHA) functional classification.

The Framingham Heart Study found that approximately 50% of patients diagnosed with CHF died within 5 years. [68] Patients with severe heart failure have more than a 50% yearly mortality rate. Patients with mild heart failure have significantly better prognoses, especially with optimal medical therapy.

Individuals with a high likelihood of myocardial recovery following appropriate therapy include those with alcohol-induced cardiomyopathy, hypertensive cardiomyopathy, tachycardia-induced cardiomyopathy, Takotsubo cardiomyopathy, or ischemic cardiomyopathy after revascularization.


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