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Results 451 - 500 of 1266
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Grassman E D - - 1997
OBJECTIVES: The purpose of this study was to determine predictors of successful coronary angioplasty for acute myocardial infarction (MI) and associated predictors of the major complications of in-hospital mortality and emergency coronary artery bypass graft surgery. BACKGROUND: Primary angioplasty is being increasingly used to treat acute MI, but factors affecting ...
Reifart N - - 1997
BACKGROUND: The purpose of this study was to test whether coronary revascularization with ablation of either excimer laser or rotational atherectomy can improve the initial angiographic and clinical outcomes compared with dilatation (balloon angioplasty) alone. METHODS AND RESULTS: At a single center, a total of 685 patients with symptomatic coronary ...
Greenbaum A B - - 1997
Exploration of new strategies and therapies to improve survival and outcomes of acute myocardial infarction (AMI) continues. Recently published large clinical trials, including the long-term results from Grampian Region Early Anistreplase Trial, Global Use of Strategies to Open Occluded Coronary Arteries, and the Global Use of Strategies to Open Occluded ...
Widdershoven J W - - 1997
BACKGROUND: During the past decade, various new treatments have become available for patients with acute myocardial infarction. The effects of these treatment modalities have been studied extensively in selected patient groups. These studies indicate that early diagnosis, risk stratification and prompt initiation of treatment are of crucial importance for optimal ...
Metz D - - 1997
A group of 460 patients was considered in our prospective study of assessment of the efficiency and safety of 6F (internal diameter 0.062 inches) guiding catheters to perform elective percutaneous coronary angioplasty by the femoral approach by using conventional balloon systems. The patients were randomly assigned either a 6F guiding ...
Glazier J J - - 1997
Conventional balloon angioplasty in the presence of intracoronary thrombus is associated with an elevated risk for acute myocardial infarction, emergency bypass surgery, and death. The purpose of this study was to assess the safety and efficacy of a new technique to treat thrombus-containing stenoses consisting of the local delivery of ...
Juergens C P - - 1997
Abciximab has been shown to reduce the ischemic complications of high-risk angioplasty procedures. The appropriate management of patients who have received abciximab and require emergency coronary artery bypass surgery after failed coronary angioplasty is as yet undetermined. We present the outcomes of a small series of such patients who were ...
Gunnes P - - 1997
The magnum wire is a stiff-shaft, blunt-tip wire constructed for recanalisation during angioplasty. Smaller series have demonstrated superior qualities compared to conventional wires. The purpose of this study was to analyze its feasibility in a larger number of procedures. A single centre database analysis identified the use of Magnum wire ...
Ochiai M - - 1997
We conducted a prospective study to investigate the relation between ST reelevation during primary angioplasty and improvement in left ventricular function. The duration, not the occurrence, of ST reelevation at reperfusion was associated with improvement in left ventricular function in patients with anterior wall acute myocardial infarction successfully recanalized by ...
- - 1997
BACKGROUND: Among physicians who treat patients with acute myocardial infarction, there is controversy about the magnitude of the clinical benefit of primary (i.e., immediate) coronary angioplasty as compared with thrombolytic therapy. METHODS: As part of the Global Use of Strategies to Open Occluded Coronary Arteries in Acute Coronary Syndromes (GUSTO ...
Spaulding C M - - 1997
BACKGROUND: The incidence of acute coronary-artery occlusion among patients with sudden cardiac arrest outside of the hospital is unknown, and the role of reperfusion therapy has not been determined. We therefore performed immediate coronary angiography and angioplasty when indicated in survivors of out-of-hospital cardiac arrest. METHODS: Between September 1994 and ...
Smyth DW - - 1997
AIMS: To report the outcome of patients undergoing angioplasty for myocardial infarction in a general hospital in a city without cardiac surgery serving an extended population of 500,000. The nearest cardiac surgical facilities are 220 miles away. METHODS AND RESULTS: Consecutive, unselected patients with myocardial infarction associated/complicated by: cardiogenic shock ...
Kodama K - - 1997
The efficacy of transient QRS axis shift to the left as a predictor of proximal left anterior descending coronary artery (LAD) disease was assessed. By using receiver operating characteristic curve analysis, we indicated that the difference in modal QRS axis between before and after exercise was useful in detecting proximal ...
Lee S W - - 1997
OBJECTIVE: The management strategies after acute myocardial infarction (AMI) have been evolving from simple supportive treatment to various protocols of thrombolytic therapies, and then to mechanical revascularization by balloon angioplasty in recent years. However, controversies still exist between which is the best treatment approach. METHODS: An extensive analysis was carried ...
Tu J V - - 1997
BACKGROUND: Acute myocardial infarction is a leading cause of morbidity and mortality in the United States and Canada. We performed a population-based study to compare the use of cardiac procedures and outcomes after acute myocardial infarction in elderly patients in the two countries. METHODS: We compared the use of invasive ...
Danchin N - - 1997
Coronary angioplasty has undergone major technical changes since the period of inclusion in the randomized trials, comparing it with surgery, particularly with the increased use of coronary stents. This study shows improved in-hospital outcome in terms of primary success and complication rates in patients treated with coronary angioplasty for multivessel ...
Newton G E - - 1997
Although experimental evidence has demonstrated that brief periods of myocardial ischemia are not associated with norepinephrine overflow from the heart, cardiac sympathetic responses to myocardial ischemia in humans remain unclear. Eleven patients undergoing angioplasty of the left anterior descending coronary artery had cardiac norepinephrine spillover measured immediately before inflation, during ...
Werner G S - - 1997
Coronary angioplasty is gaining increased importance as a primary treatment of acute myocardial infarction, but the complication rate of the procedure is higher than in stable coronary artery disease. In a consecutive series of 110 coronary angioplasties in patients with acute myocardial infarction, the cause of initially failed procedures was ...
Serrano C V CV - - 1997
OBJECTIVES: This study sought to characterize leukocyte and platelet activation and adhesion molecule expression after coronary angioplasty. BACKGROUND: Coronary angioplasty can be regarded as a clinical model of postischemic inflammation because this intervention leads to the release of inflammatory mediators as a result of plaque rupture and endothelial injury. METHODS: ...
Rozenman Y - - 1997
We evaluated the long-term angiographic outcome of balloon angioplasty by comparing original and follow-up target coronary narrowing. Rather than using restenosis to determine outcome, as in most angioplasty studies, we took an unusual approach and analyzed outcome in terms that are commonly used in progression and regression studies after medical ...
Desmet W J - - 1997
We randomized 800 patients in a prospective study comparing the angiographic results, device usage and in-hospital outcome of balloon angioplasty of primary stenoses of native coronary vessels with low-compliant and highly compliant balloons. The cumulative incidence of prespecified clinical endpoints was 8.0% in both treatment groups. The primary angiographic success ...
Dion R - - 1997
OBJECTIVE: The conventional surgical treatment of isolated critical stenosis of the left main coronary artery (LMCA) leads to the definitive occlusion of LMCA, restores only a retrograde perfusion to a rather extensive myocardial area and consumes bypass material. Direct surgical angioplasty avoids these inconveniences. METHODS: Between June 1985 and August ...
Lee T M - - 1997
This study investigates the mechanisms of exaggerated acute luminal loss after successful coronary angioplasty in patients with recent myocardial infarction compared with stable angina by angiography and intracoronary ultrasound (ICUS). We studied 15 consecutive patients (group 1) who, after a successful thrombolysis for myocardial infarction, underwent delayed (8 +/- 2 ...
Marques-Vidal P - - 1997
BACKGROUND: Although it has been shown that coronary heart disease mortality rates are decreasing in industrialized countries, little is known about time trends in coronary heart disease incidence. Further, although a number of randomized clinical trials have shown that percutaneous transluminal coronary angioplasty and thrombolysis improve survival of acute myocardial ...
Osborn J J - - 1997
This study was undertaken to evaluate the use of directional atherectomy, balloon angioplasty, and video angioscopy in highly selected patients with superficial and popliteal artery stenoses. Directional atherectomy and balloon angioplasty for superficial femoral and popliteal artery stenosis (> 80%) were performed in 96 limbs (88 patients) between 1990 and ...
Nunn C - - 1997
AIM: Acute angioplasty for myocardial infarction without prior thrombolytic therapy (primary angioplasty) has been advocated as the preferred treatment for high risk infarct patients, however data is primarily from highly experienced units. This report describes the first year's experience of primary angioplasty at Waikato Hospital which is a moderate sized ...
Bates D W - - 1997
PURPOSE: To assess the data that support the use of coronary angiography and angioplasty after acute myocardial infarction, that identify the risks of these procedures, and that analyze their use and costs. DATA SOURCES: English-language articles published between 1970 and June 1995 identified through a search of the MEDLINE database. ...
Zijlstra F - - 1997
OBJECTIVES: We sought to compare primary coronary angioplasty and thrombolysis as treatment for low risk patients with an acute myocardial infarction. BACKGROUND: Primary coronary angioplasty is the most effective reperfusion therapy for patients with acute myocardial infarction; however, intravenous thrombolysis is easier to apply, more widely available and possibly more ...
Hackworth C A - - 1997
The endovascular treatment of chronic mesenteric ischemia remains in its infancy. This state is most certainly related to the small patient population affected by this devastating condition and the surgeon's limited desire to pursue percutaneous options for this group. Surgical trepidation is not unwarranted because in many facets mesenteric angioplasty ...
Paraskevaidis I A - - 1997
Although an increase in diastolic coronary flow velocity can be detected by transesophageal echocardiography 72 hours after both successful and unsuccessful left anterior coronary artery angioplasty, a significant improvement in coronary flow reserve is observed only in patients with a successful procedure. Transesophageal echocardiography-derived coronary flow reserve can identify early ...
Grip L - - 1997
BACKGROUND: Thrombin activation may be a higher risk for complications and restenosis after percutaneous transluminal coronary angioplasty in unstable patients than in patients with stable angina pectoris. The effects of heparin may be partly counteracted by a decrease in antithrombin (III). The primary objectives of this study were to evaluate ...
Wu C J - - 1997
Radial artery punctures for diagnostic coronary angiography or coronary balloon angioplasty were performed in 211 patients with a success rate of 98% (207 patients). In the four failed transradial accesses, the procedure was accomplished via the transfemoral route. Major local vascular complications included one arteriovenous fistula, one pseudo-aneurysm, and one ...
Murray A - - 1997
We have developed a device and technique for measuring the pressure-volume characteristics of an arterial segment from a standard angioplasty balloon, enabling us in this laboratory study to investigate the ability of the technique to measure changes in lumen volume and wall compliance. Percutaneous transluminal coronary angioplasty (PTCA) is a ...
Palti-Wasserman D - - 1997
During angioplasty, a guide wire (GW) is routinely placed in the coronary artery. Balloon inflation during angioplasty causes transient occlusion of the coronary artery and regional dysfunction. Thus, it is of major importance to monitor myocardial function, which may be impaired during this period. Since the GW moves with the ...
Hlatky M A - - 1997
BACKGROUND: Randomized trials comparing coronary angioplasty with bypass surgery in patients with multivessel coronary disease have shown no significant differences in overall rates of death and myocardial infarction. We compared quality of life, employment, and medical care costs during five years of follow-up among patients treated with angioplasty or bypass ...
Appels A - - 1997
A state of 'vital exhaustion', characterized by unusual tiredness, increased irritability and feelings of demoralization has been found to preceed the onset of myocardial infarction and to increase the risk of a new coronary event after angioplasty. Probably this state reflects a decreased activity of the hypothalamic-pituitary-adrenal axis as part ...
Gulanick M - - 1997
BACKGROUND: The number of coronary angioplasty procedures performed has increased more than tenfold in the past decade. Most research to date has focused on efficacy of the procedure, quality-of-life issues, and measures to promote comfort after percutaneous transluminal coronary angioplasty. Little or no research has examined the patient's experience during ...
Meier B - - 1997
Indications for chronic coronary occlusion angioplasty are based on the projected benefit and technical difficulties. With current indications, primary success is around 60% and complications are rare. In successful cases, the main benefits are improvement of symptoms and obviation of the need for bypass surgery. Late improvement of left ventricular ...
Topaz O - - 1997
Acute thrombotic occlusion of an infarct-related artery is frequently found in patients presenting with myocardial infarction. In a patient with acute inferior wall myocardial infarction complicated by continuous chest pain and hemodynamic instability, emergency diagnostic coronary arteriography demonstrated a patent, infarct-related, "pseudo" right coronary artery while, in fact, this vessel ...
Overlie PA - - 1997
In this section of the symposium, we will divide the discussion into two parts: the hypothesis, and the background and operation of a regional primary angioplasty program with review of the results in our location in West Texas. A brief discussion of the technical aspects in the performance of primary ...
Fiane A E - - 1997
Allograft vascular disease is a significant cause of death of cardiac transplant recipients after the first year of transplantation. With few exceptions, angina pectoris does not develop and objective examinations, including coronary angiography, are necessary to diagnose coronary arteriopathy. Between 1983 and 1994, 214 heart transplantations in 211 patients were ...
Labinaz M - - 1996
Our purpose was to evaluate the outcomes of patients with prior coronary angioplasty who underwent thrombolysis for new acute myocardial infarction (AMI) in the Global Utilization of Streptokinase and t-PA for Occluded Coronary Arteries-I trial. Baseline characteristics and clinical outcomes were compared between patients with (n = 1,647) and without ...
Ramamurthy S - - 1996
OBJECTIVE: In the light of the reported inconsistent anti-ischaemic and antianginal effects of transdermal glyceryl trinitrate, its efficacy and influence on the effects of intracoronary glyceryl trinitrate were examined during coronary angioplasty, which provides a model of controlled, reversible ischaemia. DESIGN: Double blind, randomised study of the effect of transdermal ...
McCrindle B W - - 1996
OBJECTIVES: This study sought to compare the immediate results and risk factors for suboptimal outcomes of percutaneous balloon angioplasty for native versus recurrent aortic obstruction. BACKGROUND: Some cardiology centers have been reluctant to adopt balloon angioplasty for treatment of native aortic coarctation, while advocating balloon angioplasty over an operation for ...
Bengtson A - - 1996
AIM: To describe the occurrence of death, development of acute myocardial infarction and need for hospitalization among patients on the waiting list for coronary artery bypass grafting and percutaneous transluminal coronary angioplasty. PATIENTS AND METHODS: All the patients on the waiting list for possible coronary revascularization in September 1990 in ...
Berger P B - - 1996
OBJECTIVES: This study sought to determine whether successful recanalization of an occluded vein graft is associated with improvement in long-term clinical outcome. BACKGROUND: Coronary angioplasty of occluded vein grafts is associated with a lower initial success rate and a higher complication rate than angioplasty of vein grafts with subtotal stenoses ...
Haviv Y S - - 1996
Peripheral vascular complications following coronary angiography and angioplasty are well established. They consist of arterial bleeding, occlusion, false aneurysm, and a-v fistula. Bleeding and thrombosis are usually evident within the twelve hours after the procedure. A case of acute right lower quadrant abdominal pain five days following thrombolytic therapy and ...
Ishihara M - - 1996
To evaluate the time course of coronary flow reserve after reperfusion, 14 patients with a first anterior wall acute myocardial infarction who underwent successful coronary angioplasty within 6 hours after symptom onset were studied. After angioplasty, coronary flow reserve of the left anterior descending artery was measured with a coronary ...
Anderson W D - - 1996
Angioplasty and bypass surgery have become standard methods of treating patients with symptomatic coronary atherosclerosis. Although both procedures have been applied to a wide spectrum of patients with acceptable morbidity and mortality, only recently have randomized trials been performed to directly compare their efficacies. In patients with multivessel disease, overall ...
Tartagni F - - 1996
This study examined the imaging results and kinetics of technetium 99m teboroxime after its intracoronary injection during papaverine-induced coronary hyperemia in patients with one-vessel disease before and after coronary angioplasty. Thirteen patients with > or = 90% diameter stenosis of either the left anterior descending or the left circumflex coronary ...
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