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The effects of beta-blockers on severe heart failure are not well known. We investigated the effects of carvedilol (beta 1, beta 2, alpha 1-blocker) on symptoms, functional class (FC), and left ventricular function in patients with refractory heart failure.

Efeitos do carvedilol (bloqueador <FONT FACE=Symbol>b1,b2,a</FONT>1) na insuficiência cardíaca refratária