Abstract:
:To study the effect of heart rate changes on Doppler measurements of mitral valve area atrial pacing was performed in 14 patients with mitral stenosis and sinus rhythm. Continuous wave Doppler and haemodynamic measurements were performed simultaneously at rest and during pacing-induced tachycardia. (1) Mitral valve area was determined using the conventional pressure half time method. (2) Additionally, mitral valve area was calculated with a combined Doppler and thermodilution technique according to the continuity equation. (3) Simultaneous invasive measurements were used for calculation of the mitral valve area according to the Gorlin formula. With increasing heart rate (69 +/- 13-97 +/- 15-114 +/- 13 beats min-1) mitral valve area either determined by the continuity equation (1.0 +/- 0.2-1.0 +/- 0.3-1.1 +/- 0.4 cm2) or the Gorlin formula (1.2 +/- 0.3-1.2 +/- 0.4-1.3 +/- 0.4 cm2) remained constant. Both methods correlated closely not only at rest (r = 0.88, SEE = 0.11 cm2, P less than 0.001), but also during atrial pacing (first level: r = 0.95, SEE = 0.10 cm2, P less than 0.001, second level: r = 0.95, SEE = 0.13 cm2, P less than 0.001). In contrast, mitral valve area calculated according to the pressure half time method increased significantly during atrial pacing (1.0 +/- 0.3-1.8 +/- 0.5-2.0 +/- 0.5 cm2).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Voelker W,Regele B,Dittmann H,Mauser M,Ickrath O,Schmid KM,Karsch KRdoi
10.1093/oxfordjournals.eurheartj.a060139subject
Has Abstractpub_date
1992-02-01 00:00:00pages
152-9issue
2eissn
0195-668Xissn
1522-9645journal_volume
13pub_type
杂志文章abstract::Between January 1983 and December 1990, 20 patients aged 80 years or older underwent valvular surgery. The patients' ages varied from 80 to 87 years (mean, 82 +/- 1.5 years). The indication for operation was aortic stenosis in 19 patients, and mitral insufficiency after previous mitral valve replacement with a biopros...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060205
更新日期:1992-04-01 00:00:00
abstract::To assess the systolic and diastolic dysfunction of the left ventricle (LV) in relation to age and the severity of impairment in Duchenne muscular dystrophy (DMD), we performed M-mode, two-dimensional and pulsed-wave Doppler echocardiography in 45 male subjects with DMD aged 8 to 25 years and in 40 age-matched healthy...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.5.669
更新日期:1993-05-01 00:00:00
abstract:AIMS:Patients with acute coronary syndrome (ACS) in the Myocardial Ischaemia Reduction with Aggressive Cholesterol Lowering (MIRACL) study had diminished cardiovascular events after 16 weeks of treatment of atorvastatin 80 mg daily. We determined whether plasma lipoproteins at baseline and then at 6 weeks after randomi...
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/ehi186
更新日期:2005-05-01 00:00:00
abstract:AIMS:Anaemia is often observed in patients with chronic heart failure (CHF), and it may be associated with a worse prognosis. Aim of this study was to identify the individual mechanisms of anaemia in CHF patients. METHODS AND RESULTS:One hundred and forty-eight consecutive patients with haemoglobin concentration <13 g...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehi388
更新日期:2005-11-01 00:00:00
abstract::All citizens (N = 22066) aged 16 to 65 of a medium-sized Belgian town were personally invited to CPR training sessions held in their neighbourhood. 1152 responded by attending a training session. Those who did not so respond were surveyed (random sample N = 600) for reasons of their not coming. The sample fitted well ...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1987-03-01 00:00:00
abstract::To assess the value of exercise stress testing and of mental stress as predictors of hypertension, we studied 130 normotensive males 14-18 years of age. Sixty-five had at least one hypertensive parent (SHT), while 65 had normotensive parents (SNT). Systolic (SBP) and diastolic (DBP) blood pressure, rate-pressure produ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061894
更新日期:1985-06-01 00:00:00
abstract::The present review summarizes the available information on the effects of the three major classes of antianginal agents (nitrates, calcium and beta-blockers) on myocardial energy metabolism. It also discusses the role of some new molecules (L-carnitine, trimetazidine and ranolazine) that have been proposed as an alter...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/14.suppl_g.2
更新日期:1993-11-01 00:00:00
abstract:AIM:Unstable coronary artery disease (CAD) is a multifactorial disease involving both thrombotic and inflammatory processes. We have assessed the time-course and the influence of thrombin inhibitors on changes in fibrinogen and C-reactive protein levels, and their relation to myocardial ischaemia in unstable CAD. METH...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0195-668x(02)00312-3
更新日期:2003-01-01 00:00:00
abstract::Aims To assess whether coronary flow velocity reserve following stent implantation is predictive of the subsequent need of target lesion revascularization. Methods and Results The outcome was examined of 417 patients enrolled in a multicentre prospective randomized study (DESTINI), who received a successful single ves...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1053/euhj.2001.2734
更新日期:2002-02-01 00:00:00
abstract::Type 2 diabetes mellitus (T2DM) is characterized by multiple pathophysiologic abnormalities. With time, multiple glucose-lowering medications are commonly required to reduce and maintain plasma glucose concentrations within the normal range. Type 2 diabetes mellitus individuals also are at a very high risk for microva...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehv239
更新日期:2015-09-07 00:00:00
abstract:AIMS:This study investigated the effects of irbesartan vs. enalapril, with early vs. late treatment, on markers of inflammation and ischaemic heart disease in patients with non-ST-segment elevation acute coronary syndrome (NSTEACS). METHODS AND RESULTS:Patients hospitalized with ischaemic symptoms and evidence of NSTE...
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/ehp301
更新日期:2009-11-01 00:00:00
abstract:AIMS:Rotablation is a widely used technique for the treatment of complex coronary artery lesions but is so far only poorly supported by controlled studies. The Comparison of Balloon-Angioplasty versus Rotational Atherectomy study (COBRA) is a multicentre, prospective, randomized trial to compare short- and long-term ef...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1053/euhj.2000.2242
更新日期:2000-11-01 00:00:00
abstract::A possibility that can be advanced to explain the antihypertensive effect of beta-blocking drugs is that they act through the baroreflex control of the cardiovascular system. In 38 essential hypertensive patients we measured 1) The lengthening and shortening in R-R interval caused by stimulation or deactivation of art...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/4.suppl_d.19
更新日期:1983-07-01 00:00:00
abstract::This state-of-the-art review aims to provide an up-to-date look at breakthrough omic technologies that are helping to unravel heart failure (HF) disease mechanisms and heterogeneity. Genomics, transcriptomics, proteomics, and metabolomics in HF are reviewed in depth. In addition, there is a thorough, expert discussion...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa270
更新日期:2020-09-21 00:00:00
abstract::In the adult cardiac myocyte the functional and structural integrity of the sarcolemma depends on the presence of calcium ions in the extracellular fluid. Ultrastructural damage to the myocardial cell after Ca is repleted following brief periods of Ca depletion includes (1) sarcolemmal disruption, (2) mitochondrial da...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/4.suppl_h.23
更新日期:1983-12-01 00:00:00
abstract::Pulmonary arterial hypertension (PAH) can be a rapidly progressive disorder and is associated with high rate of mortality, despite medical intervention. With the availability of effective therapy, early disease detection is an important strategic objective to improve treatment outcomes. Resting echocardiography is cur...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehr160
更新日期:2011-10-01 00:00:00
abstract::The purpose of this study was to evaluate the characteristics of mitral annular motion during diastole in 28 normal subjects, 40 patients with prior myocardial infarction (MI), and 23 patients with coronary artery disease but without prior MI. Mitral annular motion during diastole was obtained from the apex by M-mode ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061029
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Atrial abnormalities in patients with progressive systemic sclerosis have not been evaluated in terms of intra-atrial conduction. We hypothesized that a delay in atrial conduction in these patients might produce diastolic abnormalities as well as atrial arrhythmias. OBJECTIVE:To evaluate the atrial function...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a015211
更新日期:1997-12-01 00:00:00
abstract:AIMS:In the dual antiplatelet therapy (DAPT) study, continued thienopyridine beyond 12 months after drug-eluting stent placement was associated with increased mortality compared with placebo. We sought to evaluate factors related to mortality in randomized patients receiving either drug-eluting or bare metal stents in ...
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/ehv614
更新日期:2016-01-21 00:00:00
abstract:AIMS:We sought to define the mechanisms and correlates of leptin's vascular actions in humans with coronary artery disease. METHODS AND RESULTS:In 131 patients (age 65.7+/-0.7 years mean+/-SEM), ex vivo vascular reactivity to leptin (10(-13)-10(-7) M) was assessed in saphenous vein (SV) rings. Leptin led to SV relaxat...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi831
更新日期:2006-10-01 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::Tricuspid regurgitation (TR) is the most common lesion of the tricuspid valve (TV). Mild TR is common and usually is benign. However, moderate or severe TR can lead to irreversible myocardial damage and adverse outcomes. Despite these findings, few patients with significant TR undergo surgery. The treatment of functio...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehv487
更新日期:2017-03-01 00:00:00
abstract::Recently published epidemiological and genetic studies strongly suggest a causal relationship of elevated concentrations of lipoprotein (a) [Lp(a)] with cardiovascular disease (CVD), independent of low-density lipoproteins (LDLs), reduced high density lipoproteins (HDL), and other traditional CVD risk factors. The ath...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/eht053
更新日期:2013-11-01 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:The very long-term outcome of patients who survive the first few years after receiving cardiac resynchronization therapy (CRT) has not been well described thus far. We aimed to provide long-term outcomes, especially with regard to the occurrence of sudden cardiac death (SCD), in CRT patients without (CRT-P) and wi...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehz238
更新日期:2019-07-01 00:00:00
abstract::Re-entry was demonstrated as a self-perpetuating mechanism as early as 1906. It may lead to single-cycle electrocardiographic phenomena as well as reciprocating tachycardias. Factors favouring re-entry are as follows. Unidirectional or temporary local block of conduction, a mechanism always involved in initiation of r...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/5.suppl_b.19
更新日期:1984-09-01 00:00:00
abstract:AIMS:Our aim was to follow changes in myocardial function and physiology in patients awaiting coronary artery bypass surgery (CABG) and relate changes to post-revascularisation functional response. METHODS AND RESULTS:In 21 patients with CAD and LV dysfunction, myocardial glucose utilisation (MGU) and blood flow (MBF)...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/j.ehj.2004.01.016
更新日期:2004-03-01 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:Magnetic resonance imaging (MRI) is well established as an important diagnostic tool in medicine. However, the presence of a cardiac pacemaker is usually regarded as a contraindication for MRI due to safety reasons. In this study, heating effects at the myocardium-pacemaker lead tip interface have been investigate...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi009
更新日期:2005-02-01 00:00:00
abstract:Aims:To date, clinical evidence of microvascular dysfunction in patients with heart failure (HF) with preserved ejection fraction (HFpEF) has been limited. We aimed to investigate the prevalence of coronary microvascular dysfunction (CMD) and its association with systemic endothelial dysfunction, HF severity, and myoca...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehy531
更新日期:2018-10-01 00:00:00