Abstract:
OBJECTIVES:This study was designed to assess the effects of beta-blockade on cardiopulmonary exercise performance in symptomatic patients with tight mitral stenosis in sinus rhythm. BACKGROUND:The role of beta-blockers in these patients has been controversial and assessment of effort tolerance using treadmill exercise time has produced conflicting results. METHODS:Nineteen patients with isolated symptomatic (New York Heart Association class II or III) mitral stenosis received a beta-blocker (acebutalol or atenolol) or matching placebo for one week each in a randomized double-blind crossover fashion. Exercise on a treadmill with real time gas exchange analysis was performed six times over 4 weeks in each patient. The test was further repeated once within a week of percutaneous mitral valvotomy. RESULTS:Heart rate at rest and during peak exercise was significantly lower with beta-blockade compared to control state or placebo treatment. Mean peak oxygen consumption did not differ significantly between treatment groups. When patients were arbitrarily classified into those with (group I, heart rate < or = 130.min-1) and those without (group II, heart rate > or = 131.min-1) adequate beta-blockade, there was a significant difference in peak VO2. The peak VO2 for group I: 14.0 +/- 3.2 vs 17.5 +/- 4.0 ml.min-1.kg-1; peak VO2 for group II: 17.2 +/- 2.4 vs 18.0 +/- 2.4 ml.min-1.kg-1 (beta-blockade vs control state respectively). Treadmill exercise time did not differ between treatment groups. The slope of minute ventilation (MV) and carbon dioxide (CO2) excretion, and instantaneous carbon dioxide ventilatory equivalent (MV/VCO2) was unchanged with beta-blocker therapy indicating no improvement in ventilatory performance. CONCLUSIONS:Beta-blocker therapy in tight mitral stenosis appears to have no beneficial effect on aerobic capacity, nor does it improve ventilatory performance. Adequate beta-blockade may adversely effect peak oxygen consumption.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Patel JJ,Dyer RB,Mitha ASdoi
10.1093/oxfordjournals.eurheartj.a061084subject
Has Abstractpub_date
1995-09-01 00:00:00pages
1264-8issue
9eissn
0195-668Xissn
1522-9645journal_volume
16pub_type
临床试验,杂志文章,随机对照试验abstract:Aims:Optimal blood pressure for prevention of cardiovascular (CV) events in patients with Type 2 diabetes mellitus (T2DM) remains uncertain and there is concern for increased risk with low diastolic blood pressure (DBP). This study analysed the association between blood pressure and CV outcomes in high-risk patients wi...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehx809
更新日期:2018-06-21 00:00:00
abstract::In recent years, stress echocardiography has gained broad acceptance as a non-invasive method for the diagnosis of coronary artery disease. Facing different protocols, dosages and instrumentation, official guidelines for the performance, standardization and quality control of stress echocardiograms are needed; however...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/18.suppl_d.43
更新日期:1997-06-01 00:00:00
abstract:AIMS:Recent randomized clinical trials have reported a reduction in restenosis with intracoronary stents and have suggested that this restenosis reduction is a result of the higher immediate luminal gain, in comparison to conventional percutaneous transluminal coronary angioplasty (PTCA). The hypothesis of this study i...
journal_title:European heart journal
pub_type: 临床试验,杂志文章
doi:10.1053/euhj.1997.0614
更新日期:1998-02-01 00:00:00
abstract:Aims:The differential impact on ischaemic and bleeding events of the type of drug-eluting stent [durable polymer stents [DES] vs. biodegradable polymer stents vs. bioresorbable scaffolds (BRS)] and length of dual antiplatelet therapy (DAPT) remains to be defined. Methods and results:Randomized controlled trials compar...
journal_title:European heart journal
pub_type: 杂志文章,meta分析,评审
doi:10.1093/eurheartj/ehx437
更新日期:2017-11-07 00:00:00
abstract::The present study was designed to examine the effects of a new organic nitrate, teopranitol, in acute myocardial ischaemia. Adult cats were subjected to 5 h of myocardial ischaemia by permanent ligation of the left anterior descending coronary artery (LAD). Teopranitol (10 mg kg-1 X h) or physiological saline (vehicle...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062083
更新日期:1986-05-01 00:00:00
abstract::Hereditary factors may have a part to play in the development of bicuspid aortic valve. This report concerns a pair of identical twins, probably monozygotic, who required aortic valve replacement as a result of aortic stenosis occurring in bicuspid aortic valves. This supports the contention that there may be a geneti...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062276
更新日期:1987-03-01 00:00:00
abstract:AIMS:To investigate the ability of SYNTAX score and Clinical SYNTAX score (CSS) to predict very long-term outcomes in an all-comers population receiving drug-eluting stents. METHODS AND RESULTS:The SYNTAX score was retrospectively calculated in 848 patients enrolled in the SIRolimus-eluting stent compared with pacliTA...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehr369
更新日期:2011-12-01 00:00:00
abstract::In the blood-vessel wall, the endothelium plays a key functional role by generating several substances that modulate vascular smooth muscle tone, as well as growth, and platelet function. This review focuses on the role of the endothelial L-arginine/nitric oxide signal transduction pathway in the maintenance of vascul...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/16.suppl_k.4
更新日期:1995-11-01 00:00:00
abstract:AIMS:To assess the impact of MultiPoint™ Pacing (MPP)-programmed according to the physician's discretion-in non-responders to standard biventricular pacing after 6 months. METHODS AND RESULTS:The study enrolled 1921 patients receiving a quadripolar cardiac resynchronization therapy (CRT) system capable of MPP™ therapy...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehz109
更新日期:2019-09-14 00:00:00
abstract:AIMS:The transversal distribution of coronary atherosclerotic plaques (AP) (myocardial vs pericardial) affects vessel remodelling. The aim of this study was to define the impact of transversal lesion distribution on vessel remodelling in proximal and distal coronary segments using a 3D intravascular ultrasound (IVUS) r...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/s0195-668x(02)00426-8
更新日期:2003-02-01 00:00:00
abstract:AIMS:The ESC/ACC redefined myocardial infarction as any amount of necrosis caused by ischaemia. The aim of this study was to describe the management and outcomes using 'real-world' data taking the new definition of acute myocardial infarction into account. METHODS AND RESULTS:A total of 2,151 consecutive patients (76....
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehm031
更新日期:2007-06-01 00:00:00
abstract:AIMS:To investigate the effects of secretory phospholipase A2 (sPLA(2)) inhibition on plasma lipoproteins. Secretory phospholipase A2 isoenzymes promote atherosclerosis by mechanisms that include lipoprotein modification, retention, and oxidation. METHODS AND RESULTS:Phospholipase Levels And Serological Markers of Ath...
journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehq374
更新日期:2011-04-01 00:00:00
abstract::Impaired relaxation of the ventricle has been described in hypertrophy and in ischemic heart disease. Some of these abnormalities are transient, but all occur at an early stage of the disease. The underlying mechanisms may vary depending on the etiology of the disease, and, except for ischemic heart disease, true myoc...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/4.suppl_a.43
更新日期:1983-01-01 00:00:00
abstract:AIMS:Benefits and complications of postoperative implantable cardioverter-defibrillator tests are controversial matters. This study sought to assess the necessity of defibrillation function tests after implantation. METHODS AND RESULTS:We retrospectively analysed 1007 implantable cardioverter-defibrillator tests in 58...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1999.1716
更新日期:2000-01-01 00:00:00
abstract:AIMS:To assess the outcome and costs of patients with acute myocardial infarction (AMI) after initial admission to hospitals with or without catheterization facilities in Belgium. METHODS AND RESULTS:From a nationwide hospital register, we retrieved the data of 34 961 patients discharged during 1999-2001 with a princi...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehl161
更新日期:2006-11-01 00:00:00
abstract:AIMS:There is growing need for the identification of novel non-invasive methodologies for the identification of individuals at risk for adverse cardiovascular (CV) events. We examined whether endothelial dysfunction, as detected by non-invasive peripheral arterial tonometry (EndoPAT), can predict late CV events. METHO...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehq010
更新日期:2010-05-01 00:00:00
abstract:AIMS:Recent data suggest that the administration of bone marrow-derived stem cells (BMSC) might improve myocardial perfusion and left ventricular (LV) function after acute myocardial infarction (AMI). The aim of this study was to assess spontaneous mobilization of BMSC expressing the haematopoietic and endothelial prog...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi164
更新日期:2005-06-01 00:00:00
abstract:AIMS:Atrial fibrillation (AF) occurs often in patients after coronary artery bypass grafting (CABG) and can result in increased morbidity and mortality. Previous studies using P-wave signal-averaged electrocardiogram (P-SAECG) have shown that patients with a longer filtered P-wave duration (FPD) have a high risk of AF ...
journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehl082
更新日期:2006-07-01 00:00:00
abstract::After single chamber atrial pacemaker implantation, serial electrophysiologic studies were performed noninvasively at intervals of 3 months over a total period of 3 years in 24 patients with symptomatic sinus node dysfunction. All patients underwent invasive electrophysiologic studies before pacemaker implantation and...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061719
更新日期:1984-08-01 00:00:00
abstract::Clinical management of refractory heart failure remains challenging, with a high rate of rehospitalizations despite advances in medical and device therapy. Care can be provided in person, via telehomecare (by telephone), or telemonitoring, which involves wireless technology for remote follow-up. Telemonitoring wireles...
journal_title:European heart journal
pub_type: 杂志文章,评审
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更新日期:2011-06-01 00:00:00
abstract::The immediate and short-term results of coronary angioplasty were analysed in 16 patients who presented with chest pain at rest associated with transient marked ST-segment elevation (greater than or equal to 0.5 mV). The number of in hospital ischaemic attacks was on average 2.8 (range 1-8). All patients had at least ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062324
更新日期:1987-06-01 00:00:00
abstract:AIMS:To evaluate the effects of cardiac resynchronization therapy (CRT) on long-term survival of patients without baseline left ventricular (LV) mechanical dyssynchrony. METHODS AND RESULTS:A total of 290 heart failure patients (age 67 ± 10 years, 77% males) without significant baseline LV dyssynchrony (<60 ms as asse...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehr468
更新日期:2012-04-01 00:00:00
abstract::Thrombolytic therapy is a practical, effective approach to the management of acute myocardial infarction that is widely used in Europe today. Early European trials demonstrated a clear reduction in mortality in patients who received thrombolytic therapy compared with those given conventional treatment. The findings of...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/17.suppl_e.21
更新日期:1996-09-01 00:00:00
abstract:AIMS:Very few data exist on the occurrence of acute kidney injury (AKI) associated with transcatheter aortic valve implantation (TAVI). The objectives of the present study were (i) to determine the incidence, predictive factors, and prognostic value of AKI following TAVI, and (ii) to compare the occurrence of AKI in TA...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehp552
更新日期:2010-04-01 00:00:00
abstract::At the moment, the most reliable method for diagnosing right ventricular dysplasia is considered to be angiography. Morphological alterations such as the presence of akinetic/dyskinetic areas, aneurysmatic dilatations and deep anteroapical fissuring, not necessarily associated with an increase in ventricular volume, a...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/10.suppl_d.42
更新日期:1989-09-01 00:00:00
abstract:AIMS:The cardiac extracellular matrix is highly involved in regulating inflammation, remodelling, and function of the heart. Whether matrix alterations relate to the degree of inflammation, fibrosis, and overall rejection in the human transplanted heart remained, until now, unknown. METHODS AND RESULTS:Expression of m...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehs375
更新日期:2013-07-01 00:00:00
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journal_title:European heart journal
pub_type: 新闻
doi:
更新日期:2014-09-07 00:00:00
abstract::Science has made enormous achievements for our understanding of the world and for everyday life: we now know that we live on a spherical planet of the solar system, we understand the origin of the species, we can take a train, survive myocardial infarction, and fly to the moon. This has been made possible thanks to a ...
journal_title:European heart journal
pub_type: 历史文章,杂志文章
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更新日期:2013-04-01 00:00:00
abstract:AIM:The present study aimed to assess the benefits of two-stent techniques for patients with DEFINITION criteria-defined complex coronary bifurcation lesions. METHODS AND RESULTS:In total, 653 patients with complex bifurcation lesions at 49 international centres were randomly assigned to undergo the systematic two-ste...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa543
更新日期:2020-07-14 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00