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Freeman Jason - - 2002
Left main stenosis is a rare cause of acute myocardial infarction. Emergent percutaneous transluminal coronary angioplasty (PTCA) of the left main coronary artery has been shown to have greatly increased procedural and short-term mortality. Stenting decreases the incidence of abrupt closure and has a lower restenosis rate after PTCA. We ...
Ruscazio Massimo - - 2002
OBJECTIVES: This study sought to evaluate the diagnostic potential of contrast-enhanced transthoracic echocardiography (CE-TTE) during adenosine infusion, a noninvasive method for evaluating coronary flow reserve (CFR), in detecting restenosis after successful percutaneous transluminal coronary angioplasty (PTCA). BACKGROUND: Restenosis is the most important limitation of PTCA, and CFR can be impaired ...
Lepper Wolfgang - - 2002
This study evaluated the ability of intravenous myocardial contrast echocardiography (MCE) performed in the setting of acute myocardial infarction for prediction of left ventricular (LV) remodeling. Intravenous MCE was performed immediately before, 1 hour, and 24 hours after primary percutaneous transluminal coronary angioplasty (PTCA) in 35 patients with a first ...
Hanssen Hans J L - - 2002
The distal part of a percutaneous translumenal coronary angioplasty (PTCA) guidewire should not only be flexible, nonkinking, radiopaque and lubricious, but also nonthrombogenic. Possible formation of thrombotic emboli at a guidewire's surface enhances the risk for occlusion at the coronary lesion downstream. This article reports on the development of a ...
Dudek Dariusz - - 2002
BACKGROUND: Optimization of coronary angioplasty in bifurcation lesions remains a major challenge for percutaneous revascularization techniques. MATERIAL/METHODS: We evaluated procedural success, major in-hospital complications, target vessel revascularization, and 2-year clinical outcomes in 45 patients who underwent PTCA of a bifurcation lesion using currently available techniques and rigorous criteria for optimal ...
Tan H Q - - 2002
OBJECTIVE: To analyse the characteristics and therapies of patients with acute ischemic syndrome in China. METHODS: This study is part of the international multicentre registry for acute ischemic syndrome. Since April 1999, the data of patients admitted to designated hospitals with acute ischemic cardiac chest pain were collected by filling ...
Dori Guy - - 2002
OBJECTIVE: To evaluate the phase plane (PP) ECG as a method for detecting acute coronary occlusion (ACO). BACKGROUND: Balloon inflation in a coronary artery during PTCA produces acute myocardial ischemia. The sensitivity of the standard ECG for detecting ACO is approximately 50%, depending on the number of leads recorded. METHODS: ...
Matsuo Hitoshi - - 2002
The main aim of this study was to elucidate whether the beneficial effect of antecedent angina is a cellular protective effect or the result of an increase of collateral flow. Of 42 patients with angina who underwent percutaneous transluminal coronary angioplasty (PTCA) for proximal left anterior descending artery (LAD) stenosis, ...
Olsson Karin Aström - - 2002
OBJECTIVE: Free radicals formed after coronary artery occlusion and reperfusion are assumed to produce myocardial stunning and possibly other forms of reperfusion injury as well. Malondialdehyde (MDA) is an end product in the lipid peroxidation chain reaction and is frequently used as a marker for free oxygen radical production. Increased ...
Katinioti Anastasia A - - 2002
Basic fibroblast growth factor (bFGF) has been implicated in the pathogenesis of coronary atherosclerosis and in angiogenesis. We assessed the changes in serum bFGF before, immediately after, and 6 months after coronary angioplasty (PTCA). Using the ELISA methods we measured plasma bFGF in 28 patients who underwent PTCA, in 20 ...
Poli Arnaldo - - 2002
BACKGROUND: ST-segment elevation (SigmaSTe) recovery and the angiographic myocardial blush (MB) grade are useful markers of microvascular reperfusion after recanalization of the infarct-related artery. We investigated the ability of a combined analysis of MB grade and SigmaSTe changes to identify different patterns of myocardial reperfusion shortly after primary percutaneous coronary ...
Fukumoto Yoshihiro - - 2002
Nitric oxide (NO) plays an important role in the control of vascular tone as well as structure. This study examined the possibility that the extent of restenosis 3 months after percutaneous transluminal coronary angioplasty (PTCA) might be correlated with the magnitude of NO production at the PTCA sites on the ...
Gibson C Michael - - 2002
BACKGROUND AND OBJECTIVES: Slower blood flow in the setting of acute myocardial infarction (MI) has been related to adverse outcomes, but the relationship of coronary blood flow after percutaneous transluminal coronary angioplasty (PTCA) in the setting of acute coronary syndromes to adverse outcomes and restenosis has not been well described. ...
Sinitsyn V - - 2003
Our objective was to assess the relationship between coronary artery calcification and outcomes of percutaneous transluminal coronary angioplasty (PTCA). Electron beam computed tomography (EBCT) was performed in 80 patients with coronary artery disease (CAD) who underwent PTCA. The calcium score in each coronary artery vessel was estimated (in Agatston units) ...
Grines Cindy L - - 2002
OBJECTIVES: The Air Primary Angioplasty in Myocardial Infarction (PAMI) study was designed to determine the best reperfusion strategy for patients with high-risk acute myocardial infarction (AMI) at hospitals without percutaneous transluminal coronary angioplasty (PTCA) capability. BACKGROUND: Previous studies have suggested that high-risk patients have better outcomes with primary PTCA than ...
Ngamtrairai Punya - - 2002
PTCA is one of the treatments for coronary heart disease. But in Thailand, there is no available data on the long-term outcomes of patients who have undergone this procedure. To determine initial and long-term outcomes of patients who underwent percutaneous transluminal coronary angioplasty (PTCA), patients who underwent PTCA from January ...
Lepper Wolfgang - - 2002
OBJECTIVES: The aim of this study was to evaluate the coronary blood flow velocity pattern immediately and 24 h after percutaneous transluminal coronary angioplasty (PTCA) for acute myocardial infarction (AMI) in relation to myocardial reperfusion and follow-up left ventricular (LV) function. BACKGROUND: Analysis of coronary blood flow velocity pattern after ...
Bernstein Steven J - - 2002
OBJECTIVE: We convened a multinational panel to develop appropriateness criteria for percutaneous transluminal coronary angioplasty (PTCA) and coronary artery bypass graft (CABG). To assess the applicability of these criteria, we applied them to patients referred for coronary revascularization. Finally, to understand how multinational criteria may differ from criteria developed by ...
Chen Jilin - - 2002
OBJECTIVE: To examine long-term efficacy of percutaneous transluminal coronary angioplasty (PTCA), coronary stenting and to assess the factors affecting its efficacy. METHODS: A total of 790 patients who underwent successful PTCA and PTCA + stent in this hospital were followed by direct interview or letter. The rate of follow-up was ...
Coen Veronique L M A - - 2002
PURPOSE: Retrospective evaluation of the accuracy of manual multisegmental irradiation with a source train for irradiation of long (re)stenotic lesions in coronary arteries, following percutaneous transluminal coronary angioplasty (PTCA). MATERIAL AND METHODS: Thirty-six patients were treated with intracoronary irradiation following PTCA with manual multisegmental irradiation. These patients were included in ...
Stone Gregg W - - 2002
As compared with thrombolytic therapy, primary percutaneous transluminal coronary angioplasty (PTCA) in acute myocardial infarction reduces the rates of death, reinfarction, and stroke, but recurrent ischemia, restenosis, and reocclusion of the infarct-related artery remain problematic. When used in combination with PTCA, coronary stenting and platelet glycoprotein IIb/IIIa inhibitors may further ...
Buxton N - - 2002
The objective was to study the relation between changes in cerebral ventricular size and clinical outcome after neuroendoscopic third ventriculostomy (NTV) in both primary (no previous surgery) and secondary (previous CSF diversion for hydrocephalus) NTV. Changes in ventricular size were related to the need for further surgery for CSF diversion. ...
Hojo Yukihiro - - 2002
Recent studies have revealed that matrix metalloproteinases (MMPs) play an important role in cardiovascular remodeling by degrading the extracellular matrix. We investigated changes in the expression of MMPs due to percutaneous transluminal coronary angioplasty (PTCA). We studied 47 patients with ischemic heart disease who underwent elective PTCA on isolated stenotic ...
Huang Jin Long - - 2002
BACKGROUND: Ventricular fibrillation (VF) is not an infrequent complication of percutaneous transluminal coronary angioplasty (PTCA). However, it is not clear why there is a marked discrepancy in the higher incidence of VF during right coronary artery (RCA) approach. METHODS AND RESULTS: We analyzed in detail every case of VF occurring ...
Buchwald Arnd B - - 2002
OBJECTIVES: We sought to demonstrate, in an appropriate animal model, that co-medication with a transcription factor-blocking agent limits restenosis after percutaneous transluminal coronary angioplasty (PTCA). BACKGROUND: Enhanced synthesis in the vessel wall of endothelin-1 (ET-1), a powerful co-mitogen for vascular smooth muscle cells, appears to be one mechanism that promotes ...
vom Dahl Juergen - - 2002
BACKGROUND: Aim of this trial was to compare rotational atherectomy followed by balloon angioplasty (rotablation [ROTA] group) with balloon angioplasty (percutaneous transluminal coronary angioplasty [PTCA] group) alone in patients with diffuse in-stent restenosis. METHODS AND RESULTS: The ARTIST study is a multicenter, randomized, prospective European trial with 298 patients with ...
Petronio Anna Sonia - - 2002
Few data are available concerning the effects on clinical outcome and left ventricular function of abciximab administration in patients undergoing rescue percutaneous transluminal coronary angioplasty (PTCA) after failed thrombolysis for acute myocardial infarction. The aim of the study was to investigate such effects. Eighty-nine consecutive patients referred to our laboratory ...
Giri Satyendra - - 2002
This study examines the effects of abciximab as adjunctive therapy in primary percutaneous transluminal coronary angioplasty (PTCA) for acute myocardial infarction (AMI) complicated by cardiogenic shock. Abciximab improves the outcome of primary PTCA for AMI, but its efficacy in cardiogenic shock remains unknown. Case report forms were completed in-hospital and ...
Sciagrà Roberto - - 2002
For patients with acute myocardial infarction who undergo primary percutaneous transluminal coronary angioplasty (PTCA), it is important to promptly identify those in whom a significant delayed improvement of global left ventricular function is to be expected as a result of successful treatment. METHODS: In 51 patients with acute myocardial infarction ...
Barmeyer A - - 2002
In this study, we investigated the effect of percutaneous transluminal coronary angioplasty (PTCA) on functional exercise capacity, oxygen uptake at anaerobic threshold (VO(2 AT)) and maximal oxygen uptake (VO(2 max)) in patients with coronary artery disease (CAD). Twenty-five patients with CAD and stable angina pectoris underwent spiroergometry before and after ...
Tsang Janius - - 2002
PURPOSE: Hypertension is an important risk factor for coronary artery disease. However, the impact of hypertension on the outcomes of patients undergoing percutaneous transluminal coronary angioplasty (PTCA) is unknown. Our purpose was to evaluate the association between hypertension and adverse outcomes and repeat cardiac procedures during the 6-month period after ...
Masuda Hideki - - 2002
Ulcerative colitis (UC) associated with Takayasu's disease (TD) is not common in Japan. Here, we report two patients with both diseases who received a total proctocolectomy. Patient 1, a 41-year-old woman with chronic continuous type UC, was first diagnosed with TD at the age of 10 years. Subsequently, she was ...
Stempfle Hans-Ulrich - - 2002
BACKGROUND: The extent of myocardial salvage after primary percutaneous transluminal coronary angioplasty (PTCA) in acute myocardial infarction (AMI) is variable and can not be predicted on the basis of vessel patency. The aim of this study was to evaluate the tissue salvage and the microvascular integrity after successful intervention in ...
Werner Gerald S - - 2002
BACKGROUND: Microvascular dysfunction (MD) is frequently observed in chronic total coronary occlusions (TCOs). This impairs the use of Doppler velocimetry for the guidance of PTCA. It is yet unknown to what extent microvascular dysfunction may recover during follow-up, and whether this may influence long-term outcome. METHODS: After recanalization and stenting ...
PoloĊ„ski Lech - - 2002
This open-label, randomised, controlled study is aimed at assessing the effect of pre-treatment with the metabolic agent trimetazidine on the degree of ischaemia during percutaneous transluminal coronary angioplasty (PTCA). Overall 44 patients with one-vessel coronary artery stenosis (> 70%) in the medial part of the left anterior descending artery were ...
Brosh David - - 2002
We assessed the short-term outcome of percutaneous coronary ultrasound thrombolysis (CUT) for high-risk thrombus-containing lesions in native coronaries in the setting of acute coronary syndromes (ACS). Data were prospectively collected in a multicenter (n = 32) registry of consecutive ACS patients. The study population (n = 126) had mostly (84%) ...
Unverdorben M - - 2001
PURPOSE: The trauma induced by balloon angioplasty has an impact on the outcome of coronary interventions, such as stent procedures. However, balloon inflation for PTCA is not yet standardized even though procedural and long-term outcomes might be affected. METHODS: During routine PTCA, a total of 454 patients [mean age, 60.9 ...
Huynh T - - 2001
OBJECTIVE: Diabetes mellitus is associated with high rates of restenosis and adverse outcomes after percutaneous transluminal coronary angioplasty (PTCA). It is unclear whether coronary stenting reduces adverse events in diabetic patients after PTCA. Our purpose was to determine whether coronary stenting improves clinical event rates in diabetic patients after PTCA. ...
Margheri M - - 2001
BACKGROUND: Direct coronary angioplasty (PTCA) represents the most effective treatment for acute myocardial infarction. However, only a minority of patients are initially admitted to hospitals with direct PTCA facilities available 24 hours daily. The safety and benefits of transfer direct PTCA are debated, and we have no data about the ...
Malanuk R M - - 2001
This retrospective study examined the utilization of coronary stent placement versus PTCA in hemodialysis patients with obstructive coronary disease. Prior studies have demonstrated suboptimal results with PTCA owing primarily to high rates of restenosis. We identified 19 hemodialysis patients who received a percutaneous coronary intervention who were matched with individuals ...
Iwado Y - - 2001
Although ST segment shift is a marker of myocardial ischemia, some patients have no ST segment shift during percutaneous transluminal coronary angioplasty (PTCA). The aim of this study is to investigate myocardial perfusion and metabolism in adaptation for ischemia using 201TI and 123I-BMIPP dual exercise stress myocardial single photon emission ...
Brodie B R - - 2001
The mortality benefit of thrombolytic therapy for acute myocardial infarction (AMI) is strongly dependent on time to treatment. Recent observations suggest that time to treatment may be less important with primary percutaneous transluminal coronary angioplasty (PTCA). Patients with AMI of <12 hours duration, without cardiogenic shock, who were treated with ...
I. Chaikovsky,J. Kohler,V. Sosnytsky,D. ...
Introduction During recent years, percutaneous transluminal coronary angioplasty (PTCA) has developed to the most often applied therapeutical method in coronary artery disease (CAD) even in cases with complex stenosis. Since the beginning of interventional therapy there is need for a noninvasive method to follow up PTCA results, especially because of ...
Tada H - - 2001
The aim of this study is to investigate the influence of the E4 allele of apolipoprotein E (apo E) on restenosis after percutaneous transluminal coronary angioplasty (PTCA). The subjects were 171 male patients with more than 75% luminal diameter stenotic lesions of the coronary artery who had undergone an elective ...
Kimura K - - 2001
The time from admission to reperfusion in patients with acute myocardial infarction (AMI) was compared according to the type of hospital and treatment strategy. A total of 164 patients with a first AMI within 12h of onset were enrolled at one tertiary emergency center (TEC) and 6 community hospitals (CHs). ...
de Cannière D - - 2001
OBJECTIVE: Percutaneous transluminal coronary angioplasty (PTCA) or surgery can be chosen as first-line therapies in multiple-vessel coronary disease. A mammary-to-left anterior descending (LAD) graft is the most important statistical determinant of a favorable outcome after coronary artery bypass grafting (CABG) and can be performed with lower morbidity off pump through ...
Schneider E C - - 2001
BACKGROUND: Coronary artery bypass graft (CABG) surgery and percutaneous transluminal coronary angioplasty (PTCA) are well-established treatments for symptomatic coronary artery disease. Previous studies have documented racial differences in rates of use of these cardiac revascularization procedures. Other studies suggest that these procedures are overused: that is, they are done for ...
Kressin N R - - 2001
PURPOSE: The cause of racial disparities in the use of invasive cardiac procedures remains unclear. To summarize, evaluate, and clarify gaps in the literature, studies examining racial differences in cardiac catheterization, percutaneous transluminal coronary angioplasty (PTCA), and coronary artery bypass grafting (CABG) were reviewed. DATA SOURCES: MEDLINE search for English-language ...
Strotmann J M - - 2001
AIMS: Doppler myocardial imaging is potentially a sensitive tool to assess regional myocardial velocities pre- and post-percutaneous transluminal coronary angioplasty (PTCA) as a marker of contractility to evaluate short- to medium-term information on functional myocardial recovery following the release of ischaemia. METHODS: Thirty patients with single vessel disease were studied ...
Maier W - - 2001
BACKGROUND: The working group Coronary Circulation of the European Society of Cardiology has been conducting a yearly survey on coronary interventions in Europe. The purpose of this study is to present the evolution of percutaneous transluminal coronary angioplasty (PTCA) with epidemiological and economic implications. METHODS: Coronary interventions were polled by ...
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