Abstract:
AIMS:To assess the effect of experimentally induced atrial fibrillation on coronary flow in humans. METHODS AND RESULTS:In 16 patients (10 men, mean age 43+/-13 years) with normal coronary vessels, baseline and hyperaemic blood pressure and Doppler phasic coronary flow velocity were measured, using a 0.014 inch intracoronary Doppler flow wire, during sinus rhythm, experimentally induced atrial fibrillation, and right atrial pacing at a similar heart rate to that during atrial fibrillation. Coronary flow velocity integral per minute increased significantly during both right atrial pacing and atrial fibrillation compared to sinus rhythm, but during right atrial pacing the increase was greater (85+/-43% vs 52+/-25%, P<0.001). This difference persisted even after correction for the product of heart rate and blood pressure (1.15+/-0.51 vs 0.97+/-0.46, respectively, P<0.02). In a further 12 paced patients (seven men, mean age 54+/-10 years) with complete atrioventricular block the induction of atrial fibrillation (atrial fibrillation with regular RR interval) caused no significant changes in coronary flow velocity variables. CONCLUSIONS:Acute atrial fibrillation in humans causes an increase in coronary flow that is, however, insufficient to compensate for the augmented myocardial oxygen demand, mainly because of the irregularity in the ventricular rhythm that exists during atrial fibrillation.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Kochiadakis GE,Skalidis EI,Kalebubas MD,Igoumenidis NE,Chrysostomakis SI,Kanoupakis EM,Simantirakis EN,Vardas PEdoi
10.1053/euhj.2001.2894subject
Has Abstractpub_date
2002-05-01 00:00:00pages
734-41issue
9eissn
0195-668Xissn
1522-9645pii
S0195668X01928945journal_volume
23pub_type
杂志文章abstract::Transluminal coronary angioplasty (PTCA) is a well defined controlled model inducing regional myocardial ischaemia in man. Direct cardiac anti-ischaemic effects of anti-anginal drugs can be assessed by intracoronary injection of small doses which do not affect systemic parameters. Trimetazidine (TMZ) has recently been...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/eurheartj/14.suppl_g.6
更新日期:1993-11-01 00:00:00
abstract::Some studies provide a link between the width of QRS complexes and late potentials occurring at the end of the QRS complex in signal-averaged recordings. The purpose of this study was to compare three methods of QRS duration measurement: the conventional 12 lead ECG, the Frank vectorcardiogram (VCG) and the signal-ave...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060375
更新日期:1994-01-01 00:00:00
abstract:AIMS:Our study aimed to examine the management of acute coronary syndromes (ACS) in Europe and the Mediterranean basin, and to compare adherence to guidelines with that reported in the first Euro Heart Survey on ACS (EHS-ACS-I), 4 years earlier. METHODS AND RESULTS:In a prospective survey conducted in 2004 (EHS-ACS-II...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehl196
更新日期:2006-10-01 00:00:00
abstract:AIM:To describe the relative impact on survival of the delay from estimated time of collapse to call for an ambulance among patients who suffer from a bystander witnessed out of hospital cardiac arrest of a cardiac aetiology. METHODS:A majority of all ambulance organizations in Sweden (covering 85% of Sweden inhabitan...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/s0195-668x(03)00475-5
更新日期:2003-10-01 00:00:00
abstract::Nitric oxide inhalation in myocardial infarction patients sends mixed messages, but may offer some benefit. ...
journal_title:European heart journal
pub_type: 新闻
doi:
更新日期:2015-05-14 00:00:00
abstract::Cardiac hypertrophy was induced in rats either by isoprenaline treatment or by experimental abdominal aortic stenosis. In both models, the UTP content increased in the hypertrophying heart, while the ATP level remained depressed. The rate of net synthesis of uracil nucleotides, estimated by phosphate incorporation int...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/5.suppl_f.155
更新日期:1984-12-01 00:00:00
abstract::Patent foramen ovale (PFO) is implicated in the pathogenesis of a number of medical conditions but to date only one official position paper related to left circulation thromboembolism has been published. This interdisciplinary paper, prepared with the involvement of eight European scientific societies, reviews the ava...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa1070
更新日期:2021-01-28 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
doi:10.1093/eurheartj/ehr005
更新日期:2011-06-01 00:00:00
abstract:AIMS:Clonal haematopoiesis of indeterminate potential (CHIP), defined as the presence of an expanded somatic blood cell clone without other haematological abnormalities, was recently shown to increase with age and is associated with coronary artery disease and calcification. The most commonly mutated CHIP genes, DNMT3A...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehz591
更新日期:2020-02-21 00:00:00
abstract::The efficacy of nifedipine and prazosin in the treatment of Raynaud's phenomenon was assessed in a prospective double-blind randomized cross-over trial in 15 patients. Each patient received one week of nifedipine 20 mg TID, one week of prazosin 1 mg TID, and 2 weeks of placebo. Nifedipine was shown to be effective in ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061923
更新日期:1985-08-01 00:00:00
abstract:AIM:To investigate fatalities from myocardial infarction at 28 days and one-year among patients aged 35-64 years in the Nordic and Lithuanian centres participating in the World Health Organization MONICA (Monitoring of Trends and Determinants of Cardiovascular Disease) Project. METHODS AND RESULTS:Altogether 9100 myoc...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a015124
更新日期:1997-01-01 00:00:00
abstract:AIMS:Although cerebral blood flow (CBF) is known to be low in patients with advanced systolic heart failure (HF), little is known of the prognostic significance of this observation. We investigated whether CBF might be associated with the development of adverse outcomes in systolic HF, and whether it might provide prog...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehr345
更新日期:2012-02-01 00:00:00
abstract:AIMS:We sought to investigate the effect of adenosine pretreatment on the incidence of myonecrosis after non-urgent percutaneous coronary intervention (PCI). METHODS AND RESULTS:This was a prospective, randomized, open-label study. Patients who were scheduled for non-urgent PCI in de novo native coronary arteries were...
journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehl411
更新日期:2007-01-01 00:00:00
abstract:AIMS:We evaluated the accuracy of 64-slice computed tomography (CT) to identify ischaemic aetiology of heart failure (IHF). METHODS AND RESULTS:Ninety-three consecutive patients in sinus rhythm with dilated cardiomyopathy but without suspicion of coronary artery disease (CAD) were enrolled when admitted for angiograph...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehn072
更新日期:2008-09-01 00:00:00
abstract:AIMS:Chronic kidney disease (CKD) was found to be an independent risk factor for all-cause mortality as well as adverse cardiovascular disease (CVD) events in high-risk populations. Findings from population-based studies are scarce and inconsistent. We investigated the gender-specific association of CKD with all-cause ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi880
更新日期:2006-05-01 00:00:00
abstract::The antibody prevalence data indicate that C. pneumoniae infections are common worldwide and more frequently occur in middle-aged and elderly males than in females. C. pneumoniae infections are first acquired in childhood in heavily populated areas, whereas in northern countries, first infections are generally at teen...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:
更新日期:1993-12-01 00:00:00
abstract:AIM:To define the long-term outcome of patients presenting with acute coronary syndrome [ST-segment elevation myocardial infarction (STEMI), and non-STEMI and unstable angina acute coronary syndrome (ACS) without biomarker elevation] and to test the hypothesis that the GRACE (Global Registry of Acute Coronary Events) r...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehq326
更新日期:2010-11-01 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
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...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/oxfordjournals.eurheartj.a061084
更新日期:1995-09-01 00:00:00
abstract:Aims:Pulmonary hypertension (PH) and pulmonary vascular disease (PVD) are common and associated with adverse outcomes in heart failure with preserved ejection fraction (HFpEF). Little is known about the impact of PVD on the pathophysiology of exercise intolerance. Methods and results:Heart failure with preserved eject...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehy331
更新日期:2018-08-07 00:00:00
abstract::A double-blind, placebo-controlled trial comparing the antiarrhythmic effects of lidocaine (given intravenously as a bolus injection of 100 mg followed by an infusion of 2 mg min-1) and propafenone (given as a bolus of 105 mg followed by 300 mg orally every 8 h) was conducted in the first 24 h following acute myocardi...
journal_title:European heart journal
pub_type: 临床试验,杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062428
更新日期:1988-11-01 00:00:00
abstract:AIMS:The management and outcomes of patients with functional moderate/severe mitral regurgitation and severe left ventricular (LV) systolic dysfunction are not well defined. We sought to determine the characteristics, management strategies, and outcomes of patients with moderate or severe mitral regurgitation (MR) and ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehv343
更新日期:2015-10-21 00:00:00
abstract:AIMS:Positron emission tomography (PET) myocardial perfusion imaging (MPI) can non-invasively measure myocardial blood flow reserve (MBFR). We aimed to examine whether MBFR identifies patients with a survival benefit after revascularization, helping to guide post-test management. METHODS AND RESULTS:We examined all-ca...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehz389
更新日期:2020-02-01 00:00:00
abstract:AIMS:Despite the known benefits of regular exercise, the reasons why many coronary heart disease (CHD) patients engage in little physical activity are not well understood. This study identifies factors associated with low activity levels in individuals with chronic CHD participating in the STABILITY study, a global cli...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/eht258
更新日期:2013-11-01 00:00:00
abstract:AIMS:Surgery in patients with infective endocarditis (IE) can be elective (upon completion of antibiotic treatment) or urgent (before antibiotic treatment has ended) when the clinical course is unfavourable. However, urgent surgery for left-sided endocarditis is associated with high mortality. The aims of this study we...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehl315
更新日期:2007-01-01 00:00:00
abstract:AIMS:Vascular endothelial growth factor-A (VEGF-A) is an angiogenic and vasoprotective molecule whose expression is modulated by hypoxia and inflammatory mediators. Here we have tested the hypothesis that plasma levels of VEGF-A are influenced by pre-existing coronary artery disease and by changes in circulating interl...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2001.3034
更新日期:2002-06-01 00:00:00
abstract:AIMS:Circulating microRNAs (miRs) may reflect pathophysiologically relevant processes in the atherosclerotically diseased coronary arterial wall. Given the unmet medical need to identify patients with an unstable plaque phenotype, we determined the relation of circulating atherosclerosis-regulatory miRs with plaque phe...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehw047
更新日期:2016-06-07 00:00:00
abstract:AIMS:Little research exists on exercise performance and training in patients with an implemented cardioverter defibrillator (ICD) and only in a limited number of patients. This study aims to investigate the effect of exercise training in ICD patients in comparison to the effects in other cardiac patients without an ICD...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ehj.2004.04.034
更新日期:2004-07-01 00:00:00
abstract:AIMS:To perform a retrospective analysis of subgroups of patients enrolled into the European Myocardial Infarct Amiodarone Trial (EMIAT) in order to identify patients who might benefit from prophylactic amiodarone treatment and patients in whom amiodarone might be harmful. METHODS:Baseline characteristics of the 1486 ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1997.0823
更新日期:1998-01-01 00:00:00
abstract:AIM:Heart disease is recognized as a consequence of dysregulation of cardiac gene regulatory networks. Previously, unappreciated components of such networks are the long non-coding RNAs (lncRNAs). Their roles in the heart remain to be elucidated. Thus, this study aimed to systematically characterize the cardiac long no...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehu180
更新日期:2015-02-07 00:00:00