Abstract:
BACKGROUND:The efficacy of thrombolytic therapy might be influenced by changes in the hemodynamic status. The aim of the study was to examine whether changes in perfusion pressure could affect the time to reflow in an in-vitro model. METHODS:The in-vitro flow system comprised flexible plastic tubes that enclosed a blood clot formed in one of the circuit arms. Streptokinase (125,000 U) or saline (control) was injected from a proximal side branch to induce thrombolysis. The protocol comprised four treatments: A, perfusion pressure 150/90 mmHg with streptokinase infusion; B, perfusion pressure 150/90 mmHg with saline; C, perfusion pressure 120/60 mmHg with streptokinase; D, perfusion pressure 120/60 mmHg with saline. Reflow was defined as flow restoration determined by the ultrasonic flowmeter. RESULTS:Successful recanalization was obtained in six of six samples subjected to treatment A (100%), two of seven samples subjected to treatment B (28%), three of five samples subjected to treatment C (60%) and none of six samples subjected to treatment D (0%). Time to reflow was 23 +/- 11 min with treatment A, 76 +/- 24 min with treatment B, 66 +/- 25 min with treatment C, and > 90 min with treatment D. CONCLUSIONS:Our data suggest that the hemodynamic status determines the efficacy of streptokinase-induced thrombolysis, and that spontaneous clot lysis is more likely to occur at greater perfusion pressures. It is conceivable that the hypotensive reaction induced by streptokinase in the clinical setting may adversely affect angiographic patency, compared with that observed with other lytic agents such as tissue-type plasminogen activator.
journal_name
Coron Artery Disjournal_title
Coronary artery diseaseauthors
Kornowski R,Mendelevich L,Zaretsky U,Einav S,Laniado S,Keren Gdoi
10.1097/00019501-199809010-00007subject
Has Abstractpub_date
1998-01-01 00:00:00pages
43-8issue
1eissn
0954-6928issn
1473-5830journal_volume
9pub_type
杂志文章abstract:OBJECTIVES:We aimed to evaluate the management and outcomes of patients of the octogenarian age group with non-ST elevation myocardial infarction (NSTEMI) in a real-world setting. METHODS:The risk of 30-day and 1-year mortality by age and the time of coronary angiography [categorized as early (≤48 h of admission) and ...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0b013e32835c8f53
更新日期:2013-03-01 00:00:00
abstract:INTRODUCTION:We investigated the relationship between heart rate variability and preclinical carotid intima-media thickening, a putative index of atherosclerosis. METHODS:A sample of 350 men and women (mean age 56.8 years) selected for the presence or absence of untreated hypertension was assessed for heart rate varia...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e328011ac01
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Platelet-activating factor is a biologically potent phospholipid that may mediate cell damage in patients with myocardial ischemia. In plasma, its inactivation to lyso-platelet-activating factor is catalyzed by a specific, lipoprotein-associated acetylhydrolase. Because lipoprotein levels decrease after myoc...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199302000-00009
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND:Several prognostic factors have been identified in patients with vasospastic angina; however, factors that would predict potentially fatal cardiac arrest during the period between the onset of angina and its definitive diagnosis remain unknown. We investigated the predictive value of the clinical findings th...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract:BACKGROUND:In the medical literature, several cases of Tako-tsubo cardiomyopathy (TTC) with coronary artery disease (CAD) have been reported, and in clinical practice, several typical TTC cases show relevant stenoses of the coronary arteries spatially unrelated to the dysfunctional myocardium. OBJECTIVE:This study aim...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0b013e3283645c4e
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:The safety of ergonovine/ergometrine stress testing for coronary vasospasm when performed outside the cardiac catheterization laboratory (cath lab) has been questioned vigorously. AIM:To assess the tolerability and safety of ergonovine/ergometrine stress testing performed in the echocardiographic laboratory...
journal_title:Coronary artery disease
pub_type: 杂志文章,评审
doi:10.1097/00019501-200112000-00008
更新日期:2001-12-01 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::This review provides a brief introduction to the basic concepts of MRA techniques with specific discussions on imaging of coronary arteries. These techniques, especially those for imaging of coronary arteries, are still rapidly evolving. The goals of future research include obtaining faster imaging, higher SNR, and hi...
journal_title:Coronary artery disease
pub_type: 杂志文章,评审
doi:10.1097/00019501-199905000-00002
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND:There is increasing evidence that an open infarct-related artery results in increased electrical stability of the heart and that this effect is at least in part responsible for the favorable outcome of these patients. In the thrombolytic era the optimal strategy for risk stratification remains controversial....
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:Drug-coated balloon (DCB) angioplasty has emerged as an effective management strategy worldwide. In June 2016, DCB became available for the treatment of de novo small coronary lesions in Japan; however, there has been no multicenter analysis in a post-approval real-world clinical setting to date. The aim of t...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000782
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:This study aimed at evaluating efficacy and safety of thrombus aspiration and intracoronary-targeted thrombolysis on coronary thrombus burden in ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous catheterization, comparing their effects on myocardial perfusion through index of...
journal_title:Coronary artery disease
pub_type: 杂志文章,随机对照试验
doi:10.1097/MCA.0000000000000743
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:The aim of this study was to identify psychosocial variables that, in addition to known medical factors, predict the long-term outcome after a first myocardial infarction. PATIENTS AND METHODS:The study population consisted of 222 men aged 30-60 years who entered an inpatient rehabilitation program a mean o...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199502000-00009
更新日期:1995-02-01 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:OBJECTIVE:Plasma nuclear and mitochondrial DNA (mtDNA) levels are altered in many diseases. However, it is not known whether they are also altered in acute myocardial infarction (AMI). In the present study, we examined plasma nuclear and mtDNA levels in the patients with AMI before and after a percutaneous coronary int...
journal_title:Coronary artery disease
pub_type: 社论
doi:10.1097/MCA.0000000000000231
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVE:Coronary artery bypass graft (CABG) surgery has been a mainstream surgical procedure for coronary artery disease for the past three decades. 64-Slice coronary computed tomographic angiography (CCTA) has been established as an accurate alternative to invasive coronary artery angiography for postoperative evalu...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32834b830e
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:The high-frequency contribution (i.e. 60-120 Hz) within the QRS complex of the surface ECG is supposed to be related to the arrhythmogenic substrate underlying sustained ventricular tachycardia in patients with coronary artery disease. One of the factors that prevents a wider clinical application of spectral...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199403000-00011
更新日期:1994-03-01 00:00:00
abstract:OBJECTIVES:Red cell distribution width (RDW), a measure of red blood cell size heterogeneity, was evaluated in patients undergoing primary percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI). BACKGROUND:Higher RDW is associated with mortality in patients with symptomatic car...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e328342c77b
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:The aim of this study was to investigate microvascular function in patients with valvular heart disease (VHD), which causes chronic left ventricular volume and/or pressure overload, therefore change in coronary microvascular hemodynamics. PATIENTS AND METHODS:We prospectively enrolled 30 patients with VHD c...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000594
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:Predictors of 30-day mortality may differ from predictors of mortality at 1 year among 30-day survivors of ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI). We aimed to evaluate the predictors of 30-day and 1-year mortality in unselected patients with ST...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832e5c4c
更新日期:2009-09-01 00:00:00
abstract:OBJECTIVES:Our aim was to investigate the safety and efficacy of transradial approach, predictors of bleeding complications, and choice of radial access site in a real-life setting using a contemporary European registry of percutaneous coronary intervention (PCI) in ST-elevation myocardial infarction (STEMI). BACKGROU...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0b013e32833aa6d1
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND:Baseline coronary artery diameter and coronary artery dilation response to nitrate are associated with coronary vasoreactivity. OBJECTIVES:The present study investigated the predictive value of coronary artery tone for a positive intracoronary acetylcholine (ACh) provocation test. METHODS:A total of 197 pa...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000401
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:Limited data exist about the prognostic significance of new-onset atrial fibrillation (AF) after contemporary primary percutaneous coronary intervention (pPCI). The objective of this study was to identify the incidence and predictors of new-onset AF and associated adverse 30-day outcomes in AF patients who u...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章
doi:10.1097/MCA.0b013e32834df552
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Treatment of coronary in-stent restenosis (ISR) remains challenging in contemporary clinical applications. Drug-coated balloon (DCB) angioplasty offers an effective treatment for ISR. Shenqi is a novel iopromide-based paclitaxel-coated balloon and its clinical safety, effectiveness and angiographic efficacy ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000994
更新日期:2020-11-20 00:00:00
abstract:BACKGROUND:Different cardiovascular risk calculators and risk-based thresholds for initiating statin therapy are currently in use. Using coronary computed tomography angiography, we sought to compare the Pooled-Cohort Equation [atherosclerotic cardiovascular disease (ASCVD) score] with the Systematic COronary Risk Eval...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000398
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:Although the relationship between atherosclerosis and inflammatory cells has been recognized in recent years, the effect of interleukin-6 (IL-6) genetic variants associated with atherosclerosis is still controversial. Therefore, we investigated the association between IL-6 polymorphism and levels of IL-6 in ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3282f27bf7
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVE:Ga-NOTA-RGD PET is a newly developed molecular imaging for angiogenesis. In this study, Ga-NOTA-RGD PET was used to investigate imaging characteristics in a rat myocardial infarction (MI) model and to monitor the efficacy of an angiogenesis induction therapy. MATERIALS AND METHODS:Ga-NOTA-RGD PET was perform...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3283608c32
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:The cause for discrepancy in the clinical presentation and outcome of coronary artery disease (CAD) between men and women is not established. Different prevalences of risk factors or specific sex-related atherosclerotic aspects have been advocated as possible explanations. We investigated coronary plaque mor...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000522
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:The aim of the present study is to investigate incidence, predictors, and long-term outcomes of suboptimal coronary flow after primary percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) in a large population. METHODS:A total of 2056 consecutive patients with STEMI (mean ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32834f1b8a
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:An association between early repolarization and ventricular fibrillation has recently been reported in patients with vasospastic angina (VSA). However, no studies have clarified whether the presence of early repolarization can predict VSA. METHODS:Participants comprised 286 patients (136 males) with clinica...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000983
更新日期:2020-11-13 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