Abstract:
BACKGROUND:Both systolic and diastolic dysfunction have been observed in patients with anterolateral myocardial infarction. Diastolic dysfunction is related to disturbances in relaxation and diastolic filling. OBJECTIVE:To analyse cardiac rotation, regional shortening and diastolic relaxation in patients with anterolateral infarction. METHODS:Cardiac rotation and relaxation in controls and patients with chronic anterolateral infarction were assessed by myocardial tagging. Myocardial tagging is based on magnetic resonance imaging and allows us to label specific myocardial regions for imaging cardiac motion (rotation, translation and radial displacement). A rectangular grid was placed on the myocardium (basal, equatorial and apical short-axis plane) of each of 18 patients with chronic anterolateral infarction and 13 controls. Cardiac rotation, change in area and shortening of circumference were determined in each case. RESULTS:The left ventricle in controls performs a systolic wringing motion with a clockwise rotation at the base and a counterclockwise rotation at the apex when viewed from the apex. During relaxation a rotational motion in the opposite direction (namely untwisting) can be observed. In patients with anterolateral infarction, there is less systolic rotation at the apex and diastolic untwisting is delayed and prolonged in comparison with controls. In the presence of a left ventricular aneurysm (n = 4) apical rotation is completely lost. There is less shortening of circumference in infarcted and remote regions. CONCLUSIONS:The wringing motion of the myocardium might be an important mechanism involved in maintaining normal cardiac function with minimal expenditure of energy. This mechanism no longer operates in patients with left ventricular aneurysms and operates significantly less than normal in those with anterolateral hypokinaesia. Diastolic untwisting is significantly delayed and prolonged in patients with anterolateral infarction, which could explain the occurrence of diastolic dysfunction in these patients.
journal_name
Coron Artery Disjournal_title
Coronary artery diseaseauthors
Nagel E,Stuber M,Lakatos M,Scheidegger MB,Boesiger P,Hess OMdoi
10.1097/00019501-200005000-00009subject
Has Abstractpub_date
2000-05-01 00:00:00pages
261-7issue
3eissn
0954-6928issn
1473-5830journal_volume
11pub_type
杂志文章abstract:BACKGROUND:Acute kidney injury (AKI) and anemia have been extensively studied in ST-elevation myocardial infarction (STEMI), yet the precise nature of their reciprocal relationship has not been elucidated in STEMI patients. METHODS:We performed a retrospective analysis of 2096 consecutive patients admitted for STEMI b...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000973
更新日期:2020-10-13 00:00:00
abstract:BACKGROUND:Several investigators have indirectly implicated oxygen free radicals in reperfusion injury following ischemia in the isolated rabbit heart. METHODS:A quantitative assessment of free-radical production during ischemia and reperfusion was made using electron paramagnetic resonance (EPR) spectroscopy. Serial ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199312000-00009
更新日期:1993-12-01 00:00:00
abstract:OBJECTIVES:YKL-40 is secreted by macrophages, including those in atherosclerotic plaques, neutrophils, and vascular smooth muscle cells. Circulating YKL-40 is elevated in patients with inflammation and increased tissue remodeling. The aim was to examine the sequential changes in serum YKL-40 in patients with acute myoc...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3282f40dd5
更新日期:2008-06-01 00:00:00
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journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000788
更新日期:2019-11-01 00:00:00
abstract:AIMS:The clinical effectiveness of sirolimus-eluting stents (SES) for treatment of patients with saphenous vein graft disease is not well defined. This analysis sought to evaluate the clinical follow-up after treatment of stenotic saphenous vein grafts using SES in a large patient registry. Patients treated with SES fo...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0b013e3282ef5b40
更新日期:2007-11-01 00:00:00
abstract:BACKGROUND:The effects of initial tests on long-term events have been unknown. PATIENTS AND METHODS:In this observational retrospective study, we analyzed the effects of initial noninvasive tests by myocardial perfusion imaging (MPI) and computed tomography angiography (CTA) on long-term major adverse cardiac events (...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0000000000000645
更新日期:2018-11-01 00:00:00
abstract::The causal relationship of lipoprotein(a) with cardiovascular disease has been established. However, clinical impacts of lipoprotein(a) levels on adverse vascular events in patients with established coronary artery disease who are undergoing statin treatment have not been fully elucidated. We measured lipoprotein(a) l...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000798
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Platelets have an important role in coronary thrombosis. METHODS:We studied 151 consecutive patients undergoing implantation of Palmaz-Schatz stents because of suboptimal results after coronary balloon angioplasty treated by intense anticoagulation. Surface exposure of the constitutively expressed glycoprot...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199703000-00001
更新日期:1997-03-01 00:00:00
abstract:BACKGROUND:Single or multiple brief periods of myocardial ischemic preconditioning (PC) limits ischemia- and reperfusion-induced arrhythmias. This study tested whether PC protects against ischemia/reperfusion-induced arrhythmias and, if so, whether the protective effect was mediated by the opening of ATP-sensitive (KAT...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199307000-00010
更新日期:1993-07-01 00:00:00
abstract:BACKGROUND:Free-radical generation after successful thrombolysis in acute myocardial infarction may jeopardize ischaemic but viable myocardium, thus limiting the optimal benefits of reperfusion. METHODS:Circulating free-radical activity was assessed in 25 consecutive patients with acute myocardial infarction. Those wh...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199309000-00003
更新日期:1993-09-01 00:00:00
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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: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:BACKGROUND:Elderly patients with ischaemic heart disease are often treated more conservatively and for longer than younger patients, but this strategy may result in subsequent invasive intervention of more advanced and higher risk coronary disease. METHODS:We performed a retrospective analysis of 109 patients aged > o...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199711000-00006
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Carotid intima-media thickness (CIMT) is regarded as a controversial risk marker for cardiovascular disease (CVD). We aimed to evaluate the role of CIMT and carotid plaque progression as predictors for the progression of coronary plaque and compositions. METHODS:In the Garlic 4 study, asymptomatic patients ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000001001
更新日期:2021-01-06 00:00:00
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journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3282c1fd9f
更新日期:2007-09-01 00:00:00
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journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200006000-00010
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:The aim of this study was to evaluate the safety and efficacy of the novel NovaCross microcatheter system in patients with ischemic heart disease due to coronary chronic total occlusions (CTO). METHODS:A total of 191 subjects between the ages of 25-80 years were recruited in 10 investigational sites. Each s...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000947
更新日期:2020-11-01 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: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:AIM:This study aimed to investigate whether patients with very low left ventricular ejection fractions (LVEF) should be accepted for reoperative coronary artery bypass grafting (CABG). STUDY POPULATION:Between January 1990 and December 1993, 1681 patients underwent primary CABG and 308 (15.5%) reoperative CABG. One hu...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199505000-00010
更新日期:1995-05-01 00:00:00
abstract:OBJECTIVES:The long-term clinical impact of polymer-free sirolimus-eluting stents (PF-SES) in unselected patients undergoing percutaneous coronary intervention (PCI) still remains poorly investigated. We studied the long-term clinical impact of PF-SES in a large cohort of unselected patients receiving PCI therapy at tw...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0000000000000378
更新日期:2016-08-01 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: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: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: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:BACKGROUND:Pregnancy-associated plasma protein-A (PAPP-A) is a high-molecular-weight, zinc-binding matrix metalloproteinase that is known to be abundantly expressed in ruptured plaques. Previous studies have shown PAPP-A to be a significant marker of plaque instability and cardiovascular events in patients with acute c...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e328241d967
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:P-selectin, an adhesion molecule of the selectin family, is expressed on the surface of activated thrombocytes by thrombin. The aim of the present study was to assess the predictive value of P-selectin (estimated by flow cytometric assay) for acute cardiac events in acute coronary syndrome. METHODS:The stud...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199508000-00009
更新日期:1995-08-01 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:AIMS:Compare the degree of acute vascular injury caused by a polymer-free, thin-strut drug-eluting stent (DES) to that caused by a bioresorbable polymer, thick-strut DES using optical coherence tomography (OCT). METHODS AND RESULTS:Fifty patients requiring nonurgent PCI were randomized to receive either a thin or a th...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000943
更新日期:2020-08-19 00:00:00
abstract:BACKGROUND:Lipoprotein (a) [Lp(a)] is an independent risk factor for coronary artery disease and niceritrol (a prodrug of nicotinic acid) is known to reduce Lp(a) levels. Patients with coronary artery disease often have impairment of the fibrinolytic system. METHODS:To elucidate the effect of niceritrol on fibrinolysi...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199602000-00012
更新日期:1996-02-01 00:00:00