Is heart rate reduction more important than target dose in chronic heart failure therapy with a beta-blocker?
Yong-Fang Guo
Yi An
摘要：1 IntroductionBeta-adrenoceptor blocking agents (beta-blockers) are now well established as cornerstone therapy in patients with systolic chronic heart failure (CHF).[1] Clinical data have overwhelmingly proven the beneficial effects of beta-blocker therapy in terms of improving patient prognosis,decreasing requirements for hospitalization,and postponing disease progression.[2-4] However,it remains unclear what the optimal efficacious and safe dose for an individual patient with CHF is,and whether this can simply be inferred from the target dose for each beta-blocking agent as used in the major clinical trials.Beta-blockers are a heterogeneous class of drugs,and due to the polymorphisms of beta-adrenoceptor gene expression,there is marked individual variation in responsiveness to specific agents.[5] If pharmacodynamic markers of responsiveness to beta-blockade (such as heart rate (HR) reduction) are more important than the achievement of a target dose,could they become another potential therapeutic target in beta-blocker therapy? We provide a discussion of the question in this article.
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论文发表日期：2011-10-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：3( 260-262 )
英文信息