Dilated cardiomyopathy natural history, complications and prognosis: Difference between revisions
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Revision as of 16:10, 18 January 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Prognosis
There are many prognostic factors which can be evaluated in a patient with dilated cardiomyopathy.[1] The most important prognostic indicator is a decreased ejection fraction, in addition increased left ventricular size and right ventricular dilation are independent indicators of a poor prognosis.
As is in most types of heart failure a poor NYHA functional class and increased PASP (>35mmHg) are also poor prognostic indicators.
Other findings that infer a poor prognosis are as follows: Maximal O2 uptake of < 12mL/kg / minute on exercise testing, LBBB (left bundle branch block), non sustained ventricular tachycardia, syncope, hyponatremia with a serum sodium less than 135, elevated norepinephrine, ANP (atrial natriuretic peptide) and renin levels (not routinely measured in clinical practice), elevated PCWP (pulmonary capillary wedge pressure) > 18mmHg, low cardiac index < 2.5L/min/m^2.
References
- ↑ Mayo Clinic Cardiology. Concise Textbook. Murphy, Joseph G; Lloyd, Margaret A. Mayo Clinic Scientific Press. 2007.