Abstract:
:The antiarrhythmic effects of verapamil, 17-monochloracetylajmaline, mexiletine and amiodarone were compared in 14 patients with chagasic myocarditis. Drugs and placebo were administered orally in the following order: placebo and verapamil, placebo and 17-monochloracetylajmaline, placebo and mexiletine (1 week each) and placebo and amiodarone (4 weeks each). A 24 hour ambulatory electrocardiographic recording was obtained after administration of each placebo and drug. Verapamil had no effect on the number of ventricular premature complexes, ventricular couplets and runs of ventricular tachycardia. 17-Monochloracetylajmaline did not reduce the number of ventricular premature complexes and ventricular couplets but caused a moderate reduction in runs of ventricular tachycardia. Mexiletine failed to significantly reduce ventricular premature complexes but caused a moderate decrease in both ventricular couplets and runs of ventricular tachycardia. Amiodarone was the only one of the four drugs that caused a substantial reduction of ventricular premature complexes (logarithmic mean 97.8%; p less than 0.001), total suppression of runs of ventricular tachycardia in 11 of 11 patients and suppression of ventricular couplets in 8 of 14 patients and a significant reduction in the remaining 6 patients. The much greater efficacy of amiodarone as compared with the two sodium channel modifiers (17-monochloracetylajmaline and mexiletine) and one calcium channel blocker (verapamil) suggests that its potent antiarrhythmic activity is probably related to other peculiar and still undefined electrophysiologic and pharmacologic properties.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Haedo AH,Chiale PA,Bandieri JD,Lázzari JO,Elizari MV,Rosenbaum MBdoi
10.1016/s0735-1097(86)80232-7subject
Has Abstractpub_date
1986-05-01 00:00:00pages
1114-20issue
5eissn
0735-1097issn
1558-3597pii
S0735-1097(86)80232-7journal_volume
7pub_type
杂志文章abstract:OBJECTIVES:This study sought to elucidate referral patterns and barriers to adult congenital heart disease (ACHD) care, as perceived by pediatric cardiologists (PCs). BACKGROUND:Management guidelines recommend that care of adults with moderate/complex congenital heart disease be guided by clinicians trained in ACHD. ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jacc.2012.09.015
更新日期:2012-12-11 00:00:00
abstract:BACKGROUND:The BAG3 (BLC2-associated athanogene 3) gene codes for an antiapoptotic protein located on the sarcomere Z-disc. Mutations in BAG3 are associated with dilated cardiomyopathy (DCM), but only a small number of cases have been reported to date, and the natural history of BAG3 cardiomyopathy is poorly understood...
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pub_type: 杂志文章,多中心研究
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更新日期:2018-11-13 00:00:00
abstract:OBJECTIVES:We sought to examine the short-term and longer term (6-week) effects of continuous positive airway pressure (CPAP) on myocardial energetics. BACKGROUND:Obstructive sleep apnea (OSA) and heart failure (HF) are both states of increased afterload and metabolic demand. Treatment with CPAP may initially reduce s...
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doi:10.1016/j.jacc.2006.08.059
更新日期:2007-01-30 00:00:00
abstract:OBJECTIVES:We sought to use quantitative markers of the regional left ventricular (LV) response to stress to infer whether diabetic cardiomyopathy is associated with ischemia. BACKGROUND:Diabetic cardiomyopathy has been identified in clinical and experimental studies, but its cause remains unclear. METHODS:We studied...
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更新日期:2003-08-06 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the feasibility and safety of carotid artery stenting (CAS) with a filter protection system. BACKGROUND:Neurologic events linked to the embolization of particulate matter to the cerebral circulation may complicate CAS. Strategies designed to capture embolic particles du...
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doi:10.1016/s0735-1097(02)01692-3
更新日期:2002-03-06 00:00:00
abstract:OBJECTIVES:This study sought to describe the economic outcomes from a prospective multicenter registry of primary coronary angioplasty. BACKGROUND:Interest in coronary angioplasty without preceding thrombolytic therapy as a primary reperfusion strategy has increased as a result of three recent randomized trials showin...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/0735-1097(95)00246-z
更新日期:1995-09-01 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(85)80207-2
更新日期:1985-12-01 00:00:00
abstract::The patient with heart disease and the physician providing cardiovascular health care have experienced dramatic change since the American College of Cardiology first published its journal 25 years ago. During the decade before 1958, cardiology and cardiovascular surgery emerged as specialties. Surgery by closed techni...
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pub_type: 历史文章,杂志文章
doi:10.1016/s0735-1097(83)80005-9
更新日期:1983-01-01 00:00:00
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pub_type: 评论,杂志文章,随机对照试验
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更新日期:2009-01-06 00:00:00
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pub_type: 杂志文章
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更新日期:2003-03-19 00:00:00
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更新日期:2006-04-04 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/0735-1097(95)00472-6
更新日期:1996-02-01 00:00:00
abstract:BACKGROUND:The respective impacts of transvalvular flow, gradient, sex, and their interactions on mortality in patients with severe aortic stenosis undergoing surgical aortic valve replacement (AVR) are unknown. OBJECTIVES:This study sought to compare the impact of pre-operative flow-gradient patterns on mortality aft...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2020.02.065
更新日期:2020-04-28 00:00:00
abstract:OBJECTIVES:The primary objective of this study was to assess the effect of a 6-month testosterone supplementation therapy on functional capacity and insulin resistance in female patients with chronic heart failure (CHF). BACKGROUND:Patients with CHF show decreased exercise capacity and insulin sensitivity. Testosteron...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jacc.2010.03.090
更新日期:2010-10-12 00:00:00
abstract:OBJECTIVES:This study was designed to test the hypothesis that long-term oral supplementation of dietary L-arginine (to provide a sustained elevation of nitric oxide activity) would inhibit atherogenesis in hypercholesterolemic rabbits, as assessed by histomorphometric measurements. BACKGROUND:Endothelium-derived nitr...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(94)90433-2
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVES:This study was designed to determine the susceptibility of an implanted cardioverter-defibrillator to electromagnetic interference in an electrically hostile work site environment, with the ultimate goal of allowing the patient to return to work. BACKGROUND:Normal operation of an implanted cardioverter-defi...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(96)00147-7
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to examine the effect of PCSK9 R46L on low-density lipoprotein cholesterol (LDL-C), risk of ischemic heart disease (IHD), and mortality. BACKGROUND:The 46L allele has been associated with reductions in LDL-C and risk of IHD, but results vary between studies. METHODS:We determined ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,meta分析,评审
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更新日期:2010-06-22 00:00:00
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更新日期:2018-01-16 00:00:00
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doi:10.1016/j.jacc.2005.08.031
更新日期:2005-12-20 00:00:00
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journal_title:Journal of the American College of Cardiology
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doi:10.1016/s0735-1097(86)80089-4
更新日期:1986-07-01 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2008.08.024
更新日期:2008-11-11 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
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更新日期:2002-07-03 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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更新日期:1993-03-01 00:00:00
abstract:OBJECTIVES:We examined whether hydroxyfasudil, a specific Rho-kinase inhibitor, exerts cardioprotective effect on coronary ischemia/reperfusion (I/R) injury and, if so, whether nitric oxide (NO) is involved. BACKGROUND:Recent studies have demonstrated that Rho-kinase is substantially involved in the pathogenesis of ca...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2004.10.053
更新日期:2005-02-15 00:00:00
abstract:OBJECTIVES:The purpose of this study was to determine the spectrum of left ventricular hypertrophy and ventricular morphology in adults with hypertrophic cardiomyopathy due to mutations of the beta-myosin heavy-chain gene. BACKGROUND:Although echocardiography is an important test in diagnosing hypertrophic cardiomyopa...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(93)90055-6
更新日期:1993-08-01 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.jacc.2008.08.058
更新日期:2008-12-16 00:00:00
abstract:OBJECTIVES:A randomized trial was done to compare single-chamber atrial (AAI) and dual-chamber (DDD) pacing in patients with sick sinus syndrome (SSS). Primary end points were changes in left atrial (LA) size and left ventricular (LV) size and function as measured by M-mode echocardiography. BACKGROUND:In patients wit...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0735-1097(03)00757-5
更新日期:2003-08-20 00:00:00
abstract:OBJECTIVES:The purpose of this study was to assess the ability of plasma B-type natriuretic peptide (BNP) to diagnose significant cardiovascular disease (CVD) in the pediatric population. BACKGROUND:BNP has been shown to be reliable in detecting ventricular dysfunction and heart failure in adults. Timely and accurate ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.06.020
更新日期:2009-10-06 00:00:00
abstract::Left ventricular noncompaction (LVNC) describes a ventricular wall anatomy characterized by prominent left ventricular (LV) trabeculae, a thin compacted layer, and deep intertrabecular recesses. Individual variability is extreme, and trabeculae represent a sort of individual "cardioprinting." By itself, the diagnosis ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2016.05.096
更新日期:2016-08-30 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate the effect of IR on thrombus formation and dissection repair following overstretch balloon injury in porcine coronary arteries. BACKGROUND:Exposure of blood to the injured arterial wall after percutaneous transluminal coronary angioplasty (PTCA) induces thrombus for...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(00)00851-2
更新日期:2000-10-01 00:00:00