Why Is Propranolol Better Than Metoprolol in Acute Treatment of Electrical Storm?
Why Is Propranolol Better Than Metoprolol in Acute Treatment of Electrical Storm?
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为什么普萘洛尔在电风暴的急性治疗中比美托洛尔更好?
DOI:
10.1016/j.jacc.2018.02.058
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发表时间:
2018
影响因子:
24
通讯作者:
Doytchinova,Anisiia
中科院分区:
文献类型:
--
作者:
Chen,Peng-Sheng;Doytchinova,Anisiia
In this issue of the Journal, Chatzidou et al.(1) prospectively randomized 60 patients with implantable cardioverter-defibrillators (ICDs) and electrical storm (ES) in a 1: 1, double-blind design to therapy with propranolol (40 mg orally every 6 h) versus metoprolol (50 mg orally every 6 h). Secondary causes for the index presentation were excluded and all subjects received amiodarone. The authors found that patients treated with propranolol had a shorter length of stay with significantly reduced arrhythmic burden and ICD discharges at 48 h. The results clearly indicate that propranolol is a better antiarrhythmic drug than metoprolol for acute treatment of ES in those patients who have already received amiodarone.Immediate recurrences of ventricular fibrillation (VF) after a successful defibrillation shock were first observed by Zoll et al.(2). Since then, ES, a disease characterized by repeated episodes of ventricular tachycardia (VT) and VF, mostly in patients with ICDs and heart failure, continues to represent a source of significant morbidity and mortality. The influence of the sympathetic nervous system on initiation and