Abstract:
:The effects of the calcium antagonist, diltiazem (D), on left ventricular (LV) response to postextrasystolic potentiation (PESP) were investigated in 15 coronary artery disease patients. Several haemodynamic and LV function parameters, as well as regional wall kinetics, were analysed. During LV angiography, which was performed before and after D administration (0.25 mg kg-1 bolus and 1.4 microgram kg-1 min-1 infusion), programmed atrial stimulation was applied with the sequence: S1-S1 = 600 ms; S1-S2 = 400 ms; S2-S3 = 800 ms. The results indicate that D exerts a mild negative inotropic effect which is more evident in the postextrasystolic beat (postextrasystolic ESP/ESV and dP/dtmax were significantly lower after D) but the postextrasystolic increase of EF is maintained by the effects of the drug on loading conditions of the left ventricle. Our results indicate that both a reduction of afterload and an increase of preload take place after D. The greater preload reserve induced by the drug (EDVI was significantly higher in each patient after D) was associated with a slight increase in left ventricular filling rate, while end-diastolic compliance and pressure did not show significant variations. These results suggest that the increase in left ventricular preload is due to an increase in left atrial driving pressure, an improvement of left ventricular relaxation or both. D does not affect regional wall kinetics either in basal or in the postextrasystolic beat when overall areas are considered, however its effect seems to be related to the degree of basal regional contraction.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Di Donato M,Maioli M,Marchionni N,Barletta GA,Fantini Fdoi
10.1093/oxfordjournals.eurheartj.a059772subject
Has Abstractpub_date
1990-07-01 00:00:00pages
656-61issue
7eissn
0195-668Xissn
1522-9645journal_volume
11pub_type
杂志文章abstract::Cardiac beta-adrenoceptor density and subtype distribution has been determined in different kinds of heart failure. A decrease in cardiac beta-adrenoceptor function appears to be a general phenomenon in all kinds of heart failure. However, cardiac beta 1- and beta 2-adrenoceptors seem to be differentially affected in ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/10.suppl_b.38
更新日期:1989-06-01 00:00:00
abstract:AIMS:microRNA (miRNA) is reported to be present in the blood of humans and has been increasingly suggested as a biomarker for diseases. We aim to determine the potential of cardiac-specific miRNAs in circulation to serve as biomarkers for acute myocardial infarction (AMI). METHODS AND RESULTS:By verifying their tissue...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehq013
更新日期:2010-03-01 00:00:00
abstract::In atrial flutter, chemical conversion with class I drugs is often unsuccessful, whereas class III drugs seem more promising. The different electrophysiological effects of these drugs may explain this discrepancy. To date, only experimental data show the differential effects of these drugs on conversion rate and atria...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1093/oxfordjournals.eurheartj.a060402
更新日期:1994-10-01 00:00:00
abstract:AIMS:This study investigated whether sedentary behaviour and different activity levels have an independent association with carotid intima-media thickness (IMT) and with the 3-year IMT progression in different carotid segments. METHODS AND RESULTS:The study population included 614 healthy men and women (mean age = 44 ...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehq092
更新日期:2010-06-01 00:00:00
abstract:AIMS:We designed this study in order to determine the effect of insulin on cardiac function in overweight and obese subjects during exercise. METHODS AND RESULTS:The cardiac function of 62 normal glucose tolerant subjects, aged 30-40 and divided into normal weight (group 1, n=22, BMI 20-24.9 kg/m(2)), overweight (grou...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi271
更新日期:2005-06-01 00:00:00
abstract:AIMS:The role of aspirin in the primary prevention setting is continuously evolving. Recent randomized trials have challenged the role of aspirin in the primary prevention setting. METHODS AND RESULTS:Electronic databases were searched for randomized trials that compared aspirin vs. placebo (or control) in subjects wi...
journal_title:European heart journal
pub_type: 杂志文章,meta分析
doi:10.1093/eurheartj/ehy813
更新日期:2019-02-14 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a059838
更新日期:1991-10-01 00:00:00
abstract:AIMS:Induced pluripotent stem cells (iPSCs) provide a unique opportunity for the generation of patient-specific cells for use in disease modelling, drug screening, and regenerative medicine. The aim of this study was to compare human-induced pluripotent stem cells (hiPSCs) derived from different somatic cell sources re...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehs203
更新日期:2013-09-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehv525
更新日期:2016-02-21 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,评审
doi:
更新日期:1998-06-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/5.suppl_c.77
更新日期:1984-10-01 00:00:00
abstract:Aims:Epidemiological studies strongly suggest a link between stress, depression, and cardiovascular diseases (CVDs); the mechanistic correlation, however, is poorly understood. A single-nucleotide polymorphism in the BDNF gene (BDNFVal66Met), associated with depression and anxiety, has been proposed as a genetic risk f...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehv655
更新日期:2017-05-07 00:00:00
abstract::Chronic increases in haemodynamic load modify the expression of cardiac genes, leading to a new phenotype better adapted to the new functional demand. Several mechanisms such as the global activation of genes, the modulation of single genes and/or differential expression of multigene families may account for these mod...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/11.suppl_g.1
更新日期:1990-11-01 00:00:00
abstract::The endothelins are a family of three widely expressed 21 amino acid peptides. Apart from the ability to constrict vascular smooth muscle, they have numerous other potent effects, from enhancing mitogenesis to influencing nervous function. The pathway of their production involves the initial synthesis of a predominant...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:
更新日期:1993-11-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurheartj/ehn516
更新日期:2009-01-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/14.suppl_e.2
更新日期:1993-09-01 00:00:00
abstract:AIMS:The SHould we emergently revascularize Occluded Coronaries in cardiogenic shocK (SHOCK) Trial showed no benefit of early revascularization in patients aged >/=75 years with acute myocardial infarction and cardiogenic shock. We examined the effect of age on treatment and outcomes of patients with cardiogenic shock ...
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)00844-8
更新日期:2003-05-01 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
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/6.suppl_b.85
更新日期:1985-08-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/ehr048
更新日期:2011-06-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:2012-09-01 00:00:00
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2000.2368
更新日期:2001-02-01 00:00:00
abstract::We have determined the effects of the acute administration of intravenous (i.v.) digitalis administration (0.8 mg of digoxin in 5-10 min) on the electrophysiological variables of 12 normal subjects (group 1), 12 patients with asymptomatic sinus node bradycardia (group 2) and 34 patients with symptomatic sinus node dys...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062071
更新日期:1986-04-01 00:00:00
abstract:AIMS:Prospective studies indicate that apolipoprotein measurements predict coronary heart disease (CHD) risk; however, evidence is conflicting, especially in the US. Our aim was to assess whether measurements of apolipoprotein B (apoB) and apolipoprotein A-I (apoA-I) can improve the ability to predict CHD death beyond ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehn347
更新日期:2009-03-01 00:00:00
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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
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehw683
更新日期:2017-04-07 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
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journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.9.1253
更新日期:1993-09-01 00:00:00
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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
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journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/17.suppl_g.14
更新日期:1996-12-01 00:00:00