Abstract:
BACKGROUND:A more sensitive transthoracic color Doppler technology (convergent color Doppler), along with a heart rate (HR) reduction and new tomographic planes, can greatly improve coronary blood flow velocity (BFV) recordings in the left main (LMCA) and left anterior descending (LAD) coronary arteries, allowing the detection of even a slight acceleration of BFV due to mild coronary stenosis. METHODS:A group of 26 patients underwent convergent color Doppler transthoracic echocardiography (CC-Doppler TTE) in the LMCA and in the LAD coronary arteries before and after HR lowering. A second group of 71 patients scheduled for intravascular ultrasound, expanded to 96 with 25 more patients with normal LAD (by angiography/low likelihood of disease), underwent BFV Doppler recordings by CC-Doppler TTE of the whole LAD (specifically the proximal, mid and distal segments) to detect a localized increase in BFV, after attaining maximal and reference BFV in each segment. RESULTS:In the first group, HR reduction dramatically improved the detection of optimal flow in the LMCA and LAD, from 4 to 54% and from 6 to 94% of the segments, respectively (P < 0.001). In the second group intravascular ultrasonography (IVUS) showed mild stenoses in 60 patients. The maximum velocity was higher in the diseased segment than normal segments (49 ± 24 vs. 33 ± 11 cm/s; P < 0.001) and as the reference velocity was similar (32 ± 9 vs. 33 ± 11 cm/s; P = ns), the % increase was also higher (52 ± 52 vs. 0.7 ± 3%; P < 0.001). Using a >21% increase in velocity as a cutoff value, the sensitivity and specificity of CC-Doppler TTE in detecting at least one LAD plaque were 87% (52/60 patients [pts]) and 100% (36/36 pts), respectively. CONCLUSION:CC-Doppler TTE evaluation of LAD BFV is greatly improved after reducing HR, allowing accurate noninvasive assessment of mild LAD stenosis with no radiation exposure.
journal_name
Coron Artery Disjournal_title
Coronary artery diseaseauthors
Caiati C,Lepera ME,Pollice P,Iacovelli F,Favale Sdoi
10.1097/MCA.0000000000000873subject
Has Abstractpub_date
2020-09-01 00:00:00pages
500-511issue
6eissn
0954-6928issn
1473-5830journal_volume
31pub_type
杂志文章abstract:BACKGROUND:We investigated whether diffuse coronary vasoconstriction induced by acetylcholine caused myocardial ischemia. METHODS:We studied 30 patients (40 coronary arteries) with spontaneous chest pain or equivocal studies on treadmill exercise testing and no significant coronary stenosis or previous myocardial infa...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:
更新日期:1995-06-01 00:00:00
abstract:BACKGROUND:In this study, we examined the relationship between PAI-1 4G/5G polymorphism and patency of the infarct-related artery after thrombolysis in patients with ST-elevation myocardial infarction (STEMI). METHODS:Acute STEMI patients who received thrombolytic therapy within first 12 h were included in our study. ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3283576a77
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:We examined the effects of rosuvastatin treatment on triglyceride levels and lipid measures in a parallel-group multicenter trial (4522IL/0035) in patients with hypertriglyceridemia (Fredrickson Type IIb or IV). METHODS:After a 6-week dietary lead-in period while on a National Cholesterol Education Program ...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00019501-200403000-00008
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:The N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) is a sensitive indicator of hemodynamic stress and its increased level is associated with higher mortality in acute coronary syndrome (ACS) patients. Virtual histology-intravascular ultrasound (VH-IVUS) can provide quantitative information on plaque ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832a196e
更新日期:2009-12-01 00:00:00
abstract:OBJECTIVE:To determine whether a quantitative measurement of peak systolic velocity (PSV) during dobutamine stress echocardiography (DSE) detects severe coronary artery disease (CAD) and predicts mortality in patients with end-stage renal disease. METHODS:One hundred and forty renal transplant candidates had DSE and c...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832ac5eb
更新日期:2009-05-01 00:00:00
abstract:AIM:To determine how hypertension affects the left ventricular diastolic function of patients with effort angina. METHODS:We performed radionuclide ventriculography in 14 patients with isolated stenosis of the left anterior descending coronary artery and in seven healthy volunteers. RESULTS:Neither global nor regiona...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract:OBJECTIVE:Early evaluation of patients with chest pain is important not only for the detection of acute myocardial infarction (AMI) but also for identification of patients at high risk for future cardiac events. A multimarker strategy applying results of early measurements of different biochemical markers of cardiac ne...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200508000-00009
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:There are few reports regarding the concordance of coronary arterial response between acetylcholine (ACh) and ergonovine (ER) spasm provocation tests. OBJECTIVES:We attempted to perform selective spasm provocation tests to examine the incidence of provoked spasm in patients who had undergone first coronary ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200412000-00006
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND:Although coronary artery bypass graft surgery (CABG) has been proven to have mortality and morbidity benefits in patients with non-ST elevation myocardial infarction and multivessel disease, the appropriate timing of this procedure remains unclear. Therefore, we proposed a propensity score-matched analysis c...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000537
更新日期:2017-12-01 00:00:00
abstract:BACKGROUND:Single nucleotide polymorphisms (SNPs) are the most common source of genetic variation. Although microvascular pathology is associated with cardiovascular events, genetic phenotypes causing microvascular disease remain largely unknown. This study identifies sex-specific SNPs associated with coronary microvas...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000104
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Apoptotic cell death is the major form of myocardial damage produced by coronary ischemic events. OBJECTIVE:To assess whether circulating levels of soluble Fas (sFas), an inhibitor of apoptosis, and sFas ligand, an inducer of apoptosis, in patients with coronary artery disease are greater than normal. METH...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199906000-00003
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND:Coronary stenosis of the left anterior descending artery (LAD) is respected by cardiologists because of its negative influence on morbidity and mortality. An important anatomical consideration is the length of the LAD. OBJECTIVE:To investigate the relationship between length of LAD and coronary dominance. ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200102000-00011
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:As the endothelium and inflammatory cells play a crucial role in the development of collaterals after a sudden or slowly progressing stenosis of coronary arteries, the levels of soluble endothelial adhesion molecules (CAMs) including vascular cell adhesion molecule (VCAM-1) intercellular adhesion molecule-1 (...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200411000-00008
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:Coronary heart disease is a major cause of morbidity and mortality in the elderly, a rapidly growing section of the population. Elderly patients have been excluded from most preventative risk factor trials. METHODS:We evaluated fluvastatin, a fully synthetic hydroxymethyl glutaryl coenzyme A reductase inhib...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:The Cardiac Health Profile (CHP) is a new questionnaire for assessing health-related quality of life of patients with cardiovascular diseases. It consists of three parts assessed as follows: the degree of angina pectoris (the CCS scale), the quality of life and subjective scoring of psychosocial 'cost-benefi...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:Experimental and clinical studies have suggested that intracoronary infusion of bone marrow-derived stem/progenitor cells (BMC) may improve left ventricular function after acute myocardial infarction (AMI). We conducted a systematic review and meta-analysis to investigate the efficacy and safety of BMC thera...
journal_title:Coronary artery disease
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MCA.0b013e328300dbd3
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:Studies on the relationship between coronary artery calcium and aortic diameter are scarce. The aim of the current study was to evaluate the correlation between coronary artery calcium score (CACS) and maximal thoracic and abdominal aortic diameters in a population of elderly (>65 years) male hypertensive pa...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000150
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:The role of thrombolytic therapy (TT) and percutaneous coronary interventions (PCIs) in subgroups of patients with right ventricular infarction (RVI) has not been evaluated. METHODS AND RESULTS:We risk-stratified 302 patients with RVI into three subsets upon admission. Class A (n=197) comprised patients wit...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200202000-00008
更新日期:2002-02-01 00:00:00
abstract:INTRODUCTION:The serum level of parathyroid hormone (PTH) has been shown to be a predictor of cardiovascular mortality. Data on the association between PTH level and degree of atherosclerosis severity are lacking. The objective of this study was to determine the relationship of serum PTH level and number of stenotic co...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000089
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVES:Slow coronary flow (SCF) has long since been identified and endothelial dysfunction and atherosclerosis of the epicardial coronary arteries and microvasculature are reported to be associated with SCF. Serum uric acid is an independent biochemical marker of atherosclerosis, oxidative stress and endothelial dy...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3282f0a2a7
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:In-stent restenosis results primarily from neointimal hyperplasia. In a previous study we showed that continuous subcutaneous Angiopeptin infusion for 1 week significantly reduces neointimal hyperplasia in a porcine coronary overstretch in-stent restenosis model. The present study evaluated the relative effi...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199702000-00006
更新日期:1997-02-01 00:00:00
abstract::Ischemic heart disease is a major cause of morbidity and mortality throughout the world. Percutaneous coronary intervention (PCI) has rapidly evolved from balloon angioplasty to drug-eluting stents over the past 25 years and has become an important treatment option for coronary heart disease. During PCI, atherosclerot...
journal_title:Coronary artery disease
pub_type: 杂志文章,评审
doi:10.1097/MCA.0b013e32833729e3
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:To assess the incidence, clinical significance, and independent risk factors of stroke in patients with acute myocardial infarction (AMI) treated invasively. MATERIALS AND METHODS:We analyzed 2520 consecutive patients with AMI admitted between 2003 and 2007. Data on long-term follow-up were screened to iden...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32834df573
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Coronary artery ectasia has been defined as localized or diffuse nonobstructive lesions of the epicardial coronary arteries with a luminal dilation exceeding the 1.5-fold of normal adjacent segment or vessel diameter. Although coronary artery disease is supposed to be responsible for more than 50% of coronar...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200606000-00007
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:Adenosine plays a key role in different protective and adaptive responses to ischemia and has been suggested to induce ischemic preconditioning. AIM:To investigate whether a low-dose adenosine infusion reduces the ischemic burden induced by pharmacological stress without affecting the coronary flow reserve ...
journal_title:Coronary artery disease
pub_type: 杂志文章,随机对照试验
doi:10.1097/mca.0b013e32832ac5c1
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Garlic (Allium sativum) has been considered to exhibit therapeutic features for many years. The effects of garlic on levels of serum lipids and on atherosclerosis have been investigated extensively. We have previously demonstrated that allicin, an active component of garlic, exerts a beneficial effect on lip...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199910000-00012
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVES:The activity of matrix Gla-protein (MGP), a potent inhibitor of vascular calcification, is dependent on carboxylation using vitamin K as a co-factor. In animals, low intake of total vitamin K has been shown to accelerate vascular calcification via the MGP mechanism. This has led to the hypothesis that low le...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200505000-00010
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVE:Some plaques grow slowly in a linear manner, whereas others undergo a rapid phasic progression. However, the detailed in-vivo relationship between plaque characteristics and plaque progression pattern has not been reported. The current study aimed to investigate the plaque progression patterns with serial int...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000420
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to explore the individual effects of the CYP2C19 G681A polymorphism and omeprazole use and their interaction on clopidogrel responsiveness in acute coronary syndrome (ACS). The CYP2C19 G681A polymorphism and omeprazole use were both known for retarding the effects of clopidogrel unde...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000808
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND AND AIM:The association of HIV with coronary atherosclerosis has been established; however, the progression of coronary atherosclerosis over time among participants with HIV is not well known. The Multicenter AIDS Cohort Study Quantitative Coronary Plaque Progression Study is a large prospective multicenter ...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0000000000000546
更新日期:2018-01-01 00:00:00