Search Results
Results 601 - 650 of 1181
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Howlett J G - - 1995
A case of acute hemorrhagic pericardial tamponade complicating a successful percutaneous transluminal coronary angioplasty (PTCA) is described, in the setting of rheumatoid arthritis (with no evidence of prior or concomitant pericarditis), large doses of intravenous heparin administration and a relatively high activated clotting time. There was no evidence of coronary ...
Bauters C - - 1995
BACKGROUND: Discordant results have been reported regarding morphological predictors of restenosis after percutaneous transluminal coronary angioplasty (PTCA). These discrepancies may be related to the limitations of angiography in the study of plaque morphology. METHODS AND RESULTS: We studied 117 consecutive patients who underwent successful PTCA and who underwent coronary angioscopy ...
Cremonesi A - - 1995
Percutaneous transluminal coronary angioplasty (PTCA) is an established technique in the management of patients with angina pectoris or acute myocardial infarction. One of the major problems related to PTCA is myocardial ischemia following balloon catheter occlusion of the coronary artery. A new device utilized in an attempt to counteract myocardial ...
Kleiman N S - - 1995
As the pharmacological and mechanical management of angioplasty procedures advances, the description of risk incurred during and after the procedure becomes increasingly important. A variety of measures from different sorts of databases have been devised to facilitate this task. Large public databases generally include descriptors of overall physical health and ...
Bourassa M G - - 1995
BACKGROUND: Cardiac ischemia on the ambulatory ECG (AECG) and/or on the exercise treadmill test (ETT) is associated with an increased risk of adverse outcome. Myocardial revascularization more often suppresses cardiac ischemia than does medical management alone. However, few studies have compared the effects of percutaneous transluminal coronary angioplasty (PTCA) with ...
Zimarino M M Department of Interventional Cardiology, CMC Parly-Grand Chesnay, Le Chesnay, - - 1995
Coronary angioplasty is an effective method to achieve myocardial reperfusion in acute myocardial infarction (AMI). We reviewed our experience in 132 patients (pts) who underwent percutaneous transluminal coronary angioplasty (PTCA) of a totally occluded infarct-related artery (IRA) within 24 h after the onset of symptoms (mean delay 10 +/- 7 ...
Indolfi C - - 1995
BACKGROUND: Coronary vasoconstriction has been described after uncomplicated percutaneous transluminal coronary angioplasty (PTCA). However, it is still unknown whether this phenomenon is limited to coronary circulation. The present study was planned to assess the effects of a successful PTCA on forearm blood flow (FBF) and resistance. The role of alpha-adrenoceptors ...
Stanford W - - 1995
Coronary artery calcification is a recognized marker for coronary atherosclerosis; however, the relationship between calcification and the success of balloon angioplasty at a calcification site has not been determined. The purpose of this study was to evaluate whether the presence of coronary artery calcification, as detected by electron bean computed ...
Werner G S - - 1995
Dissections after coronary angioplasty are the major cause of ischemic events following percutaneous transluminal coronary angioplasty (PTCA) and may require additional measures such as intravascular stent deployment to relieve or prevent acute vessel closure. We describe a rare type of dissection after PTCA which caused a severe obstruction of the ...
Lotan C - - 1995
Totally occluded venous grafts are usually less amenable to mechanical reperfusion alone (for example percutaneous transluminal coronary angioplasty, PTCA) because of the large mass of thrombotic material within the graft. A combined approach using mechanical and thrombolytic treatment might therefore be more successful. Twenty one patients (20 males, one female) ...
Kao H L - - 1995
In 24 patients with chronic coronary artery disease, dobutamine stress echocardiography (DSE) was performed within 2 days before and after successful elective percutaneous transluminal coronary angioplasty (PTCA) in a blinded fashion. Patients with ischemic response on DSE before PTCA had significant improvement in the global peak-dose DSE score index after ...
Naylor C D - - 1995
OBJECTIVE: To determine whether regional differences exist within Ontario in the use and timing of coronary artery bypass grafting (CABG) and percutaneous transluminal coronary angioplasty (PTCA) among patients who have recently suffered an acute myocardial infarction (AMI). BACKGROUND: Regional variations have been documented in the use of CABG in Canada, ...
Eltchaninoff H - - 1995
Cardiogenic shock remains a frequently lethal complication of acute myocardial infarction. Early revascularization of the infarct-related artery by coronary angioplasty has been suggested to significantly improve patient survival. In-hospital and 1-year survival was assessed in 50 patients hospitalized for acute myocardial infarction complicated by cardiogenic shock. All patients received medical ...
Nishiyama S - - 1995
The long-term outcome of PTCA and medical therapy were compared in patients with SVD. All patients were confirmed to have > or - 75% stenosis of a major coronary artery by coronary arteriogram. The 5-year survival rates were 96.0% for medical therapy and 98.9% for successful angioplasty. Both therapies achieved ...
Lenderink T - - 1995
BACKGROUND: Long-term follow-up in patients treated with thrombolysis for acute myocardial infarction thus far has been reported in a few studies only, and no long-term follow-up is available for patients who underwent additional percutaneous transluminal coronary angioplasty (PTCA). This report describes 5-year survival as collected in patients who received placebo, ...
Itoh T - - 1995
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 study consisted ...
Morishima I - - 1995
The clinical significance of the angiographic no-reflow phenomenon was evaluated in 93 patients with acute myocardial infarction treated by percutaneous transluminal coronary angioplasty (PTCA). On the basis of the post-PTCA angiograms, patients were divided into three groups: normal angiogram (group 1, n = 65), slight no-reflow (group 2, n = ...
Hamon M - - 1995
BACKGROUND: The insertion/deletion (I/D) polymorphism of the angiotensin-converting enzyme (ACE) gene has been implicated in the pathogenesis of coronary artery disease. The deletion allele is strongly associated with the level of circulating ACE and is a potent risk factor for myocardial infarction. Recently, the deletion allele was also associated with ...
Kuhn E M - - 1995
OBJECTIVE: The rate of coronary artery bypass surgery (CABG) has been shown to vary greatly across geographic regions. This study examined whether these rates were associated with the rate of coronary artery angioplasty (PTCA) and with other community characteristics. DATA SOURCES/STUDY SETTING: The health care financing administration provided the number ...
Bhaskaran A - - 1995
Ventricular arrhythmias (VAs) that occur following an acute extensive anterior myocardial infarction (MI) usually respond to conventional antiarrhythmic regimes of treatment. Rarely, the VA may prove intractable to therapy. This report is of three patients who presented at varying time frames (3 h to 10 weeks) following an anterior MI. ...
Aranki S F - - 1995
A number of factors must be considered when selecting a revascularization strategy for a patient with CAD: Is the patient's condition stable or unstable? How many vessels are affected? What are the benefits and drawbacks of each technique? For patients with an evolving infarction, either thrombolysis or PTCA can achieve ...
Dávila-Román V G - - 1995
Dobutamine stress echocardiography (DSE) was performed after coronary angiography to evaluate the need to perform percutaneous transluminal coronary angioplasty (PTCA) for 46 stenoses of moderate severity (50% to 80%) in 46 patients. Patients were divided into 2 groups according to the DSE results in the distribution of the coronary artery ...
Wolfe M W - - 1995
BACKGROUND: Although several studies have established that the complications of percutaneous transluminal coronary angioplasty (PTCA) are related to clinical and angiographic variables such as advanced age and lesion complexity, it is uncertain whether the use of hospital resources after PTCA also depends on the same baseline variables. The purpose of ...
Gunnell D - - 1995
OBJECTIVE: To review, from the purchaser's perspective, the current state of knowledge of techniques for investigation and treating coronary artery disease. The study was based on evidence from past and continuing randomised controlled trials (RCTs). CRITERIA FOR INCLUSION OF REPORTS: Articles listed on Medline (1990-3) with the keywords coronary disease, ...
Nakata A - - 1995
To examine the occurrence of distal vasoconstriction following primary percutaneous transluminal coronary angioplasty (PTCA) for acute myocardial infarction, quantitative coronary angiography was performed during and after acute myocardial infarction. An assessment of coronary artery vasoconstriction was made in patients undergoing primary and elective PTCA. The primary PTCA group was subdivided ...
Black N - - 1995
OBJECTIVE: To explain the reasons for geographical variation in the use of coronary revascularisation in the United Kingdom. DESIGN: This was a cross sectional ecological study. SETTING: NHS and independent hospitals performing coronary revascularisation for the 11.6 million residents of the south east Thames, East Anglian and north western health ...
Goel P - - 1995
Eighty patients underwent percutaneous transluminal coronary angioplasty (PTCA) for 109 lesions. Comparison was done between two groups based on balloon compliance. The groups were comparable in their baseline characteristics. The mean inflation pressure used with compliant balloons was significantly higher; other procedural variables were not different. The occurrence rates of ...
Emanuelsson H - - 1995
Several intravascular techniques have been developed with the purpose of achieving optimal guidance for treatment during coronary angioplasty (PTCA). Although the coronary angiographic technique is well established, there are still some inherent limitations. Due to intimal rupture, tears, dissection and thrombus following PTCA treatment, angiography does not allow exact delineation ...
Rose G A - - 1995
The role of percutaneous transluminal coronary angioplasty (PTCA) in the management of acute myocardial infarction (AMI) has not yet been precisely defined. The longest experience with PTCA in this setting has been in patients who are not candidates for thrombolytic therapy and in patients in whom thrombolysis has failed. Clinical ...
Eriksen U H - - 1995
Angiopeptin, a somatostatin analogue, inhibits intimal hyperplasia after percutaneous transluminal coronary artery balloon angioplasty (PTCA) in several animal models. This pilot study sought to determine the effect of subcutaneous infusion of angiopeptin on clinical events and restenosis in patients undergoing successful PTCA. One hundred twelve patients were randomized to receive ...
Ohtani R - - 1995
Long-term follow-up of coronary artery stenosis was carried out in 81 patients undergoing successful percutaneous transluminal coronary angioplasty (PTCA). Progression of coronary stenosis was observed in 38 patients with 52 sites, and regression was seen in 23 patients with 23 sites during 2 years or more of follow-up. Progressive change ...
Vaitkus P T - - 1995
BACKGROUND: Despite anticoagulant therapy, intracoronary thrombus formation can accompany or be induced by percutaneous transluminal coronary angioplasty (PTCA). Clinical trials for the assessment of the efficacy of novel prophylactic regimens are expensive and difficult. Accordingly, we sought to develop an approach for investigating thrombogenesis accompanying PTCA that would facilitate the ...
Röthlisberger C - - 1995
The general practice of coronary interventions is influenced by various aspects, traditional, cultural, socioeconomic and personal. The aim of this survey was to collect the data on coronary intervention in all member countries of the European Society of Cardiology. The data from 12 of the 35 national members were missing ...
Leor J - - 1995
PTCA is not only an effective therapeutic tool but a unique opportunity to study the pathobiology of the human myocardium during ischemia and reperfusion. In addition, it is a good model to assess potential therapeutic interventions. Studies performed during PTCA contributed significantly to the understanding of the metabolic, electrophysiologic, hemodynamic, ...
Dellavalle A - - 1995
BACKGROUND: The cardiac catheterization laboratory (CCL) of our hospital is the only facility for invasive cardiology in a large district. No cardiac surgery is carried out in our hospital at present, the nearest facility being approximately 50 miles away. METHODS: Over a period of 2 years we recommended percutaneous transluminal ...
Simmons J - - 1995
Dramatic changes in the management of acute myocardial infarction (AMI) have occurred in the past decade. While previous management strategies were primarily supportive, current strategies focus on achieving and maintaining patency of the infarct-related artery restoring blood flow to jeopardized myocytes, preserving left ventricular function, and preventing recurrences and complications ...
Johnson R G - - 1995
We sought characteristics predictive of the need for operative revascularization subsequent to a successful coronary angioplasty. Through June 1993, 128 patients who had successful percutaneous transluminal coronary angioplasty (PTCA) between January 1982 and March 1989 required subsequent coronary artery bypass grafting (CABG) at our hospital. These cases were matched with ...
Mann J T JT - - 1995
In order to evaluate the right radial artery approach (RRA) in PTCA, our first 50 patients (pts) who had undergone PTCA from this access site were evaluated. Seventy-eight percent of pts were male, 68% had unstable angina or recent MI. Seventy-seven lesions were dilated (31 type A, 32 type B, ...
Vaitkus P T - - 1995
PTCA in patients with stable angina and single-vessel disease alleviates symptoms more completely than medical therapy alone; it may also reduce the development of unstable angina and result in fewer hospitalizations. PTCA and bypass surgery in patients with multivessel disease are associated with a similar incidence of endpoints such as ...
Conti C R - - 1995
The evidence is becoming stronger (but not conclusive) that restoration of flow in the infarct-related artery at a later date than is generally accepted might decrease mortality. The CORAMI report suggests a good outcome with rescue angioplasty, but, unfortunately, there was no control group. Since urgent rescue PTCA opened the ...
Samani N J - - 1995
Early restenosis in over 30% of cases limits the benefits of percutaneous transluminal coronary angioplasty (PTCA). The mechanisms that underlie restenosis are uncertain, although experimental evidence suggests that the renin-angiotensin system is involved in the vascular response to angioplasty. An insertion(I)/deletion(D) polymorphism in the angiotensin-converting enzyme (ACE) gene, which influences ...
Di Mario C - - 1995
The mechanisms of immediate and late changes after percutaneous transluminal coronary angioplasty (PTCA) and directional coronary atherectomy (DCA) were assessed by serial ultrasound imaging in 18 patients treated with PTCA and 16 treated with DCA before, immediately after, and 6 months after coronary interventions. A reduction in plaque area was ...
Vassanelli C - - 1995
In the assessment of the acute results of percutaneous transluminal coronary angioplasty (PTCA), myocardial perfusion at maximal vasodilatation theoretically has fewer limitations than the coronary flow reserve measurements and quantitative coronary angiography. The purpose of this study was to compare the myocardial perfusion to the measurements of the severity of ...
Kaul U - - 1995
Forty patients undergoing percutaneous transluminal coronary angioplasty (PTCA) with severely impaired left ventricular ejection fraction (LVEF) < 30% were randomized between prophylactic intraaortic balloon pump (IABP) support (N = 20) and percutaneous cardiopulmonary bypass (PCPB) support (N = 20). The indications for both groups were left ventricular (LV) dysfunction and ...
Rogers W J - - 1995
This report presents baseline clinical and angiographic data from the Bypass Angioplasty Revascularization Investigation (BARI), a multicenter international trial assessing the relative efficacy of percutaneous transluminal coronary angioplasty (PTCA) versus coronary artery bypass graft surgery (CABG) in selected patients with multivessel coronary artery disease. PTCA is commonly performed in patients ...
Bourassa M G - - 1995
Percutaneous transluminal coronary angioplasty (PTCA) is currently performed in many patients seeking care because of severe manifestations of multivessel coronary artery disease. Previously, the majority of such patients would have undergone coronary artery bypass grafting (CABG). No definitive evidence is available as to which initial revascularization strategy has the best ...
Franco-Cereceda A - - 1995
In the present study, the cardiac outflow of endothelin, noradrenaline and neuropeptide Y was investigated in 13 patients undergoing first time coronary angioplasty (PTCA) due to stenosis of the left anterior descending coronary artery. During PTCA there was an increase in the coronary sinus levels of endothelin but no detectable ...
Grassman E D - - 1995
The purpose of this retrospective study was to define clinical, angiographic and procedural predictors of successful PTCA using perfusion balloon catheters (PBC). Age, gender, diabetes, clinical state (stable or unstable angina), coronary vessel, AHA/ACC lesion type, lesion contour, pre-procedural thrombus, percent stenosis, lesion length, balloon size, maximum PBC pressure, and ...
- - 1995
Clinical experience with the use of intracoronary tissue plasminogen activator (t-PA) is limited. We therefore undertook this study to document current clinical usage of intracoronary t-PA during a 2-yr period in a multicenter registry. Intracoronary t-PA was utilized on 206 occasions in 198 patients (154 men and 44 women; mean ...
Kupersmith J - - 1995
Cost-effectiveness analyses were reviewed in the following diagnostic and treatment categories: acute myocardial infarction (MI) and diagnostic strategies for coronary artery disease (CAD), coronary artery bypass graft (CABG) surgery, percutaneous transluminal coronary angioplasty (PTCA), congestive heart failure (CHF), and arrhythmias. In the case of acute MI, coronary care units, as ...
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