Clinical Trials of Pharmacological Therapies in Acute Heart Failure Syndromes Lessons Learned and Directions Forward
Clinical Trials of Pharmacological Therapies in Acute Heart Failure Syndromes Lessons Learned and Directions Forward
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DOI:
10.1161/circheartfailure.109.893222
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发表时间:
2010-03-01
影响因子:
9.7
通讯作者:
Gheorghiade, Mihai
中科院分区:
文献类型:
--
作者:
Felker, G. Michael;Pang, Peter S.;Gheorghiade, Mihai
Acute heart failure syndromes (AHFS) are characterized by a gradual or rapid onset of new or worsening signs and/or symptoms of heart failure (HF) requiring urgent therapy, usually resulting in hospitalization. 1, 2 The societal burden of AHFS is substantial, with 1 million hospitalizations annually in the United States and similar relative numbers in Europe. 2–6 Ongoing epidemiological trends, such as the aging population, improved survival after myocardial infarction, and a decrease in sudden death due to defibrillator therapy, suggest that the prevalence of chronic HF resulting in hospitalization will continue to increase during the coming decades. 7 The prognosis after hospitalization for AHFS remains bleak, with rates of death or recurrent hospitalization at 6 months approaching 50%, 8–10 outcomes that have changed little in recent years despite improvements in the management of chronic HF. 11 Hidden within these oft-cited statistics is a notable paradox—signs and symptoms of AHFS (dyspnea, edema, etc) are successfully treated in the majority of patients, but postdischarge outcomes remain dismal, and attempts to develop new short-term therapies for AHFS have largely been unsuccessful. Since our initial publication in 2005, 1 4 large, international phase III development programs—tezosentan, 12 levosimendan, 13 tolvaptan, 14 and rolofylline15—have failed to convincingly demonstrate the safety and efficacy of these agents in AHFS. Even for drugs approved for AHFS treatment (milrinone and nesiritide in the United States and levosimendan in parts of Europe), there have been persistent concerns about safety. 16–18 Broadly speaking, the pharmacological armamentarium for AHFS—loop diuretics, vasodilators, and inotropes—is largely unchanged from the 1970s. 19 Although substantial efforts in the last decade to develop improved AHFS therapies have yielded disappointing results, we believe that as a scientific community, we are now better equipped to conduct future studies. Hospitalization for AHFS is now recognized as a critical clinical problem in both the US and European guidelines. 2, 6 This consensus document arose