Abstract:
:The concept of coronary vascular reserve stems from the description of coronary autoregulation by Mosher in 1964. Schematically, the coronary blood flow at rest depends on the determinants of myocardial oxygen demand (heart rate, contractility and ventricular load). If maximal coronary vasodilation is produced, it results in a linear and steep pressure-flow relationship. The increment of coronary flow above its basal value is called the coronary flow reserve, which indicates the flow added to the basal flow for a given coronary perfusion pressure when the coronary vascular bed is maximally dilated. Thus, in the absence of epicardial coronary artery stenosis, the maximal coronary flow is a function of the coronary perfusion pressure and of the maximal surface area of the coronary circulation at the resistance vessel level. Evaluation of the coronary reserve in humans raises three major concerns: (1) methods for measuring or evaluating coronary flow are imprecise and inconvenient (diffusible indicators), invasive (coronary sinus thermodilution, intracoronary Doppler), expensive and require sophisticated technology (ultrafast computed tomography, positron emission tomography), or in the process of being validated (contrast echocardiography, transoesophageal Doppler echocardiography, myocardial scintigraphy: (2) the compounds used to produce maximal coronary vasodilation are administered either by the intracoronary route (papaverine) or intravenously (dipyridamole, adenosine); (3) how to interpret the data: is the alteration of the coronary reserve due to a modification of the basal coronary flow or/and of the maximal coronary flow? Thus, each method has its own limitations and constraints that must be taken into account in order to avoid crude misinterpretations. In conclusion, the measurement of coronary reserve may be an important means of understanding coronary physiology and pathophysiology. Recently developed non-invasive methods (ultrafast computed tomography, positron emission tomography, echography) and the ability to produce maximal coronary vasodilation by the intravenous route are promising.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Nitenberg A,Antony Idoi
10.1093/eurheartj/16.suppl_i.7subject
Has Abstractpub_date
1995-08-01 00:00:00pages
7-21eissn
0195-668Xissn
1522-9645journal_volume
16 Suppl Ipub_type
杂志文章,评审abstract:AIMS:Obstructive sleep apnoea (OSA) is highly prevalent in patients with chronic heart failure (CHF) and may contribute to CHF progression. We aimed to determine whether treatment of OSA with continuous positive airway pressure (CPAP) would improve subjective and objective measures of heart failure severity in patients...
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/ehm131
更新日期:2007-05-01 00:00:00
abstract:AIMS:To analyse whether the proportion of patients with lone atrial fibrillation engaged in chronic sport practice was higher than that observed in the general population. METHODS AND RESULTS:The records of 1160 patients, seen at the arrhythmia outpatient clinic, were reviewed. A total of 70 patients (6%) suffered lon...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2001.2802
更新日期:2002-03-01 00:00:00
abstract:Aims:Alcohol is a risk factor for cardiac arrhythmias. Retrospective analyses suggest supraventricular arrhythmias consecutive to acute alcohol consumption, but prospective data are limited. We intended to prospectively associate acute alcohol consumption with cardiac arrhythmias. Methods and results:At the 2015 Munic...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehx156
更新日期:2017-07-14 00:00:00
abstract::A previously described nitroglycerin-induced heparin resistance could not be verified by in-vitro experiments or in a randomized, double-blind, crossover trial in healthy volunteers. A clinically relevant attenuation of the anticoagulant effect of a heparin bolus (40 U.kg-1) by a concomitant infusion of nitroglycerin ...
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.a060182
更新日期:1992-03-01 00:00:00
abstract::Hypercholesterolaemia is an important risk factor for cardiovascular disease. Both total and LDL cholesterol levels are three-fold higher at the end of the first year of life and about four-fold higher in adulthood compared with the neonatal period. In the USA, only 25% of infants are exclusively breastfed and simple ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa868
更新日期:2020-12-16 00:00:00
abstract::The aim of this study was to determine whether sudden cardiac death from pulmonary embolism exhibits any chronobiological rhythm. Five hundred and seven consecutive subjects dying suddenly outside of hospital and brought into our Emergency Department from January 1983 to December 1989 were studied. The time and date o...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.eurheartj.a060232
更新日期:1992-05-01 00:00:00
abstract:Aims:There are limited data on the clinical implications of total physiologic atherosclerotic burden assessed by invasive physiologic studies in patients with coronary artery disease. We investigated the prognostic implications of total physiologic atherosclerotic burden assessed by total sum of fractional flow reserve...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehx458
更新日期:2018-03-14 00:00:00
abstract::We examined two 'cohorts' of elderly men, 60 and 67 years old. The two 'cohorts' overlapped to a large extent in terms of numbers but not in the follow-up periods. The mean have been followed-up for 7 and 8 years respectively. Among the 748 60-year-old men without prior myocardial infarction the 7-year incidence of co...
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1991-06-01 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:OBJECTIVE:The purpose of this study was to describe the frequencies of various diagnoses in patients admitted with acute chest pain, but without acute myocardial infarction, and to evaluate a non-invasive screening programme for these patients. PATIENTS:A total of 204 consecutive non-acute myocardial infarction patien...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a014998
更新日期:1996-07-01 00:00:00
abstract:AIMS:The association of body weight and weight change with mortality and cardiovascular (CV) outcome in patients with diabetes mellitus (DM) is not clearly established. We assessed the relationship between weight, weight change, and outcomes in patients with established CV risk factors and type 2 DM or pre-diabetes. M...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehaa293
更新日期:2020-07-21 00:00:00
abstract::The author reviews statistical methods commonly applied in economic evaluations that rely on individual patient-level data. The paper includes a review of foundational concepts, unique characteristics of health economic data, and methods developed to address them. The paper then highlights issues that should be consid...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehu174
更新日期:2014-07-01 00:00:00
abstract::To evaluate gender-related differences in left ventricular (LV) structure and function in aortic stenosis, LV biplane cineangiography, micromanometry and endomyocardial biopsies were carried out in 56 patients with aortic stenosis and normal coronary arteries. Patients were divided into males (M: n = 35), and females ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060749
更新日期:1995-10-01 00:00:00
abstract::To examine whether increases in heart rate might be a common trigger of angina at rest, changes in heart rate, blood pressure and rate-pressure product during pain were compared with the ischaemic threshold (heart rate with ST segment shift > = 1 mm), determined by atrial pacing, in 272 patients with unstable angina. ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.9.1170
更新日期:1993-09-01 00:00:00
abstract:AIMS:Our objectives were (i) to compare the discriminatory performance of the Thrombolysis in Myocardial Infarction risk score (TIMI RS), Platelet glycoprotein IIb/IIIa in Unstable angina: Receptor Suppression Using Integrilin Therapy risk score (PURSUIT RS), and Global Registry of Acute Cardiac Events risk score (GRAC...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehm004
更新日期:2007-05-01 00:00:00
abstract::The natriuretic peptides (NPs) family, including atrial, B-type, and C-type NPs, is a group of hormones possessing relevant haemodynamic and anti-remodelling actions in the cardiovascular (CV) system. Due to their diuretic, natriuretic, vasorelaxant, anti-proliferative, and anti-hypertrophic effects, they are involved...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/eht466
更新日期:2014-02-01 00:00:00
abstract::Can intracoronary thrombolytic therapy (ITT) reduce the infarct size and improve regional and global left ventricular function and if so how long after recanalization does this improvement develop? 42 patients were treated with ITT, of whom 25 showed successful recanalization (group A) and 17 had persistent occlusion ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061937
更新日期:1985-09-01 00:00:00
abstract:AIM:In this study we sought to determine the safety, feasibility and prognostic value of pharmacological stress echocardiography performed in a primary care cardiology centre, populated by unselected patients evaluated with the aid of limited financial and technological resources. METHODS AND RESULTS:The study populat...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1998.1096
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:The pathophysiology of myocardial infarction (MI) may differ depending on whether it occurs early or late in life. We tested the hypothesis that risk factor pattern differs according to the age at MI. METHODS:We performed a matched case-control study in the population-based Malmö Preventive Project (n = 33 ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehw026
更新日期:2016-07-01 00:00:00
abstract::Haemodynamic effects of pharmacological doses of insulin during acute ischaemic heart failure were studied in 8 dogs. Severe depression of left ventricular function was induced by the injection of 50 micron plastic microspheres into the left main coronary artery. This was demonstrated by a significant increase in left...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061885
更新日期:1985-05-01 00:00:00
abstract:AIMS:Brugada syndrome is considered to be a distinctive subgroup of idiopathic ventricular fibrillation. Identification of the circadian pattern of ventricular fibrillation would contribute to the elucidation of its underlying pathophysiology, but this pattern remains unknown in patients with Brugada syndrome. METHODS...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1998.1332
更新日期:1999-03-01 00:00:00
abstract::Degenerative mitral valve disease has become the major cause of mitral regurgitation in North America; it is incumbent on surgeons to know repair techniques and to document their results. Fortunately, improvements in myocardial protection have been concurrent with the evolution of mitral valve repair in our country. T...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/12.suppl_b.30
更新日期:1991-07-01 00:00:00
abstract::The transdermal nitroglycerin patches have been very successful nitrate formulations since their introduction in 1982. Nevertheless, considerable controversy regarding efficacy and tolerance has arisen. Nitroglycerin has multiple mechanisms of action in angina pectoris. Transdermal nitroglycerin in ointment formulatio...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/10.suppl_a.11
更新日期:1989-05-01 00:00:00
abstract::A major consequence of chronic cardiac dysfunction is chronic overload of contractile myocardium. Various aetiologies, in reaction to this, may induce compensatory mechanisms consisting of excentric (dilatation) and concentric hypertrophy. Chronic left ventricular dysfunction is caused most frequently by myocardial in...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/14.suppl_a.33
更新日期:1993-07-01 00:00:00
abstract::Left ventricular flow patterns were studied at rest by colour flow Doppler echocardiography in 33 patients with mitral tilting-disc prostheses (group 1), in 38 patients with mitral tissue prostheses (group 2) and in 18 healthy volunteers (controls). A 'crossed' flow pattern was seen in 14 patients with mechanical (42%...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060494
更新日期:1994-03-01 00:00:00
abstract::The management of streptococcal and enterococcal endocarditis has changed in recent years with the development of effective new regimens that are easier to administer, but resistance to commonly used antibiotics has appeared, especially among enterococci. Beta-lactam antibiotics either alone or in combination are suit...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/16.suppl_b.75
更新日期:1995-04-01 00:00:00
abstract::An investigation was undertaken to assess the value of adding streptokinase therapy to standard penicillin treatment of artificially induced infective endocarditis due to Streptococcus sanguis. In pigs a low-grade infection could be induced which closely simulated streptococcal endocarditis in man, but for technical r...
journal_title:European heart journal
pub_type: 临床试验,杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062100
更新日期:1986-06-01 00:00:00
abstract:AIMS:To determine what proportion of patients with heart failure are eligible for cardiac resynchronization therapy (CRT). METHODS AND RESULTS:Eligibility criteria from the trials establishing the efficacy of CRT were applied to two prospective cohorts: the first enrolled patients with newly diagnosed heart failure di...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehi446
更新日期:2006-02-01 00:00:00
abstract::Brief hyperventilation is occasionally accompanied by repolarization abnormalities in subjects without apparent heart disease. However, the effect of prolonged hyperventilation on repolarization abnormalities is not clearly defined. We analysed the repolarization abnormalities induced by prolonged hyperventilation, co...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a015079
更新日期:1996-09-01 00:00:00
abstract:AIMS:The object of this study is to analyse the trends in coronary events in Finland during 1993-2002, correcting for the effect of troponins. METHODS AND RESULTS:A population-based myocardial infarction register recorded all coronary events (n=14 782) in four geographical areas of Finland during 1993-2002. Correction...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1093/eurheartj/ehl120
更新日期:2006-10-01 00:00:00