Search Results
Results 351 - 400 of 1266
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Yung B C - - 1999
OBJECTIVE: To examine the utilization and contribution of cardiac perfusion scans to patients undergoing percutaneous transluminal coronary angioplasty. METHODS: From July 1996 to January 1998, 34 patients underwent percutaneous transluminal coronary angioplasty and cardiac SPECT imaging was studied. Twenty-five patients had pre-procedure SPECT scans. The agreement between angioplasty strategies and ...
Reddy N K - - 1999
Primary angioplasty has been shown to reduce rates of in-hospital mortality, recurrent ischaemia and infarction. However, the role of primary stenting and abciximab is presently undergoing evaluation. This study attempted to examine the feasibility, safety and outcomes of primary angioplasty in the treatment of acute myocardial infarction. Data in 100 ...
Seabra-Gomes R - - 1999
Coronary angioplasty began in Portugal in 1984 at the Santa Cruz Hospital and has developed progressively, being practiced in twelve hospitals since 1997. The number of patients with ischemic cardiopathy per annum that are submitted to this form of therapy has also increased. The increase is mainly in the past ...
Van Norman G A - - 1999
Prophylactic percutaneous transluminal coronary angioplasty is one revascularization strategy employed to reduce risks of cardiac complications after noncardiac surgery in certain patients. Reduced adverse cardiac event rates are at least partially offset by costs and complications of angioplasty. Patients who undergo noncardiac surgery within 90 days of coronary angioplasty may ...
Lehmann K G - - 1999
OBJECTIVES: Thrombosis is a major contributor to complications associated with coronary interventions. It is unclear whether patients who have undergone angioplasty are predisposed to thrombus formation because of underlying perturbations in their hemostatic equilibrium. METHODS: Concentration or activity was measured for 14 plasma proteins involved in the coagulation, fibrinolytic, and ...
Jutzy K R - - 1999
Coronary angioplasty has evolved in the twenty years since its introduction to become the procedure of choice for a wide variety of coronary lesions and ischemic presentations. Optimal results require highly trained cardiologists who perform procedures frequently, high volume centers with well trained staff, proper selection of patients and lesions, ...
Zahn R - - 1999
The benefit of primary angioplasty in patients with acute myocardial infarction (AMI) and contraindications for thrombolysis compared to a conservative regimen is still unclear. Out of 5,869 patients with AMI registered by the MITRA trial, 337 (5.7%) patients had at least one strong contraindication for thrombolytic therapy. Out of these ...
Ashmore R C - - 1999
This study describes prospective outcome data from 100 consecutive patients presenting with acute myocardial infarction and treated with immediate angioplasty in a community hospital setting. Successful angioplasty was achieved in 86% of patients with a mean reperfusion time of 77.5 minutes. Only 4 patients did not survive initial hospitalization; three ...
Piana R N - - 1999
OBJECTIVES: The objective of this study was to identify predictors of major adverse cardiac events after successful coronary angioplasty. BACKGROUND: The acute complications of angioplasty are related to baseline clinical and angiographic variables, and early complications adversely affect long-term outcome. However, the predictors of enduring success after uncomplicated angioplasty are ...
Kosuga K - - 1999
Angioplasty of the unprotected left main coronary artery (LMCA) has been controversial. Although recent single-center studies suggest that new devices may change the situation, many questions and problems remain. Therefore, the results of unprotected left main coronary angioplasty of 175 procedures in 107 patients were analyzed to evaluate its feasibility ...
Calton R - - 1999
To evaluate the role of primary percutaneous transluminal coronary angioplasty in cardiogenic shock, 53 patients admitted with the diagnosis of acute myocardial infarction and cardiogenic shock were studied. Thirty-five (66.0%) patients received intravenous thrombolytic therapy (streptokinase 15 lac units) and 18 (34.0%) underwent primary percutaneous transluminal coronary angioplasty. There was ...
Garratt K N - - 1999
OBJECTIVES: The purpose of this study was to examine the impact of sulfonylurea drug use on outcome in diabetic patients undergoing direct coronary angioplasty for acute myocardial infarction. BACKGROUND: Sulfonylurea drugs impair ischemic preconditioning. Whether sulfonylurea drugs affect outcome adversely in diabetic patients undergoing direct angioplasty for acute myocardial infarction ...
Michalis L K - - 1999
The aim of the study was to investigate the feasibility and clinical safety of vibrational angioplasty in the treatment of chronic total coronary occlusions and evaluate the clinical and angiographic factors that are predictive of the procedural success and complications of the procedure. Seventy-eight patients with chronic total occlusions (>3 ...
Carosio G - - 1998
We describe the case of a 60-year-old man with unstable angina and a critical stenosis of an unprotected left main stem. The patient was also affected with oligophrenia and Paget's disease that contraindicated surgical revascularization. We performed a percutaneous transluminal coronary angioplasty in the cardiac surgery operating room, preparing a ...
Erentürk S - - 1998
The incidence of isolated ostial stenosis of the left main coronary artery varies between 0.13% and 2.7%. We performed surgical ostial angioplasty in five patients who had isolated left coronary ostial stenosis. One patient had low systemic blood pressure and, after the procedure, manifested myocardial ischaemia: conventional aortocoronary bypass was ...
Azar R R - - 1998
The purpose of this study was to compare the outcome of primary percutaneous transluminal coronary angioplasty for acute myocardial infarction (MI) when performed with or without the platelet glycoprotein IIb/IIIa antibody, abciximab. Abciximab improves the outcome of angioplasty but the effect of abciximab in primary angioplasty has not been investigated. ...
Chen L - - 1998
BACKGROUND: Whether angiographic morphology of infarct-related residual stenoses continues to affect prognosis after discharge is not known. METHODS: We studied 175 patients after their myocardial infarction who required nonurgent coronary angioplasty for residual myocardial ischemia. The findings at diagnostic coronary angiography were compared with those before angioplasty (mean of 7 ...
Lee H S - - 1998
OBJECTIVE: To compare patient selection and outcome of coronary angioplasty procedures before and after the widespread availability and use of stents. SUBJECTS AND METHODS: Group 1 consisted of 252 consecutive patients and group 2 comprised 389 patients who underwent angioplasty between April 1993 and March 1994, and April 1995 and ...
Sakai Y - - 1998
A premenopausal female patient presented with acute myocardial infarction of 3 different coronary vessels at different times within 1 year. These events were caused not by restenotic lesions after balloon angioplasty but by new lesions, which were successfully treated by primary angioplasty. Although she had a history of hypertension, type ...
Lomama E - - 1998
To assess the effect of successful late coronary angioplasty of an occluded infarct-related artery on the prevalence of ventricular late potentials, signal-averaged electrocardiograms were recorded in 123 consecutive patients surviving a first acute myocardial infarction (58 with and 65 without mechanical reperfusion of the occluded coronary artery). Multivariate analysis showed ...
Schreiber T L - - 1998
High-risk patients not eligible for coronary artery bypass grafting (CABG) are being considered for percutaneous coronary interventions, using cardiopulmonary support (CPS) or intraaortic balloon pump (IABP). However, few data are available regarding case selection and outcome with various support devices. Over a 4-yr period, 149 patients underwent high-risk coronary angioplasty, ...
Musci M - - 1998
BACKGROUND: Graft coronary disease (GCD) remains the single greatest limitation to long-term survival of heart transplant recipients. Therapeutic strategies for the prevention or retardation of GCD in the cardiac allograft are limited; palliative coronary revascularization has been attempted. Because of the high mortality rate associated with advanced forms of GCD ...
Tsuchiya Y - - 1998
We investigated whether parasympathetic tone may affect ischemic preconditioning in terms of ST segment alteration during coronary angioplasty. Coronary balloon angioplasty was performed in 19 patients with angina and isolated right coronary artery disease. Parasympathetic tone was assessed by frequency domain parameters of heart rate variability using 24-hour electrocardiographic recordings ...
Hlatky M A - - 1998
BACKGROUND: Patients who undergo coronary angioplasty have a shorter convalescence than those who undergo coronary bypass surgery. This may improve subsequent employment. OBJECTIVE: To compare employment patterns after coronary angioplasty or surgery. DESIGN: Multicenter, randomized clinical trial. SETTING: Seven tertiary care hospitals. PATIENTS: 409 employed patients with multivessel coronary artery ...
Caner B - - 1998
We evaluated the accuracy of dobutamine thallium-201 myocardial perfusion scintigraphy in predicting restenosis after successful percutaneous coronary angioplasty. Restenosis is one of the most important problems in patients who have undergone percutaneous coronary angioplasty. Exercise thallium-201 myocardial perfusion scintigraphy has been a well accepted non-invasive method to predict the restenosis ...
Garbarz E - - 1998
We studied the in-hospital outcome of 138 consecutive patients who received abciximab as a "rescue" intervention for complicated coronary angioplasty in a high-risk clinical setting. "Rescue" treatment with abciximab was associated with clinical and angiographic success rates of 83% and 84%, respectively, whereas the risk of bleeding was higher in ...
Halon D A - - 1998
The study examined the 10-year outcome in a cohort of 227 unselected, consecutive patients (age 58+/-10 years) undergoing coronary balloon angioplasty between 1984 and 1986 and followed in a single cardiac center (Lady Davis Carmel Medical Center registry). In particular, we sought to identify the relative importance of the systemic ...
Oster H - - 1998
BACKGROUND: Internal mammary artery to left anterior descending coronary artery anastomosis can be done without extracorporeal circulation on the beating heart. This method seems to have particular advantages for elderly patients, those 70 years old or older. METHODS: From January 1, 1997, to October 31, 1997, 27 patients have been ...
Liem A L - - 1998
OBJECTIVES: The purpose of this analysis was to determine the influence of an additional treatment delay inherent in transfer to an angioplasty center for primary angioplasty of patients with acute myocardial infarction who are first admitted to hospitals without angioplasty facilities. BACKGROUND: Several randomized trials have demonstrated the benefits of ...
Varenne O - - 1998
BACKGROUND: Nitric oxide, synthesized from L-arginine by nitric oxide synthase (NOS), is a vasodilator and inhibits vascular smooth muscle cell (SMC) proliferation and migration. The effects of local NOS gene transfer on restenosis after experimental balloon angioplasty were investigated. METHODS AND RESULTS: Left anterior descending coronary artery angioplasty was performed ...
Schamberger M S - - 1998
We describe the first successful balloon angioplasty of a coarctation in a 460-g newborn infant with coarctation of the aorta and heart failure. A coronary angioplasty catheter was positioned across the coarctation via a transumbilical approach. The waist of the balloon disappeared on maximal inflation and there was an increase ...
Gertz S D - - 1998
BACKGROUND: Tissue factor (TF) is a transmembrane glycoprotein that, after binding to factor VII/VIIa, initiates the extrinsic coagulation pathway, resulting in thrombin generation and its sequelae. Thrombin has been shown to induce TF mRNA in endothelium, monocytes, and smooth muscle cells, further perpetuating the thrombogenic cycle. This study was designed ...
Haji-Aghaii M - - 1998
Endovascular interventions for the treatment of lower-extremity atherosclerotic disease have undergone a rapid course of development during the past 30 years. Balloon angioplasty is the most widely applied of these techniques and has been shown to yield excellent results, at least in the short and intermediate terms, in appropriately selected ...
Kyriakides Z S - - 1998
We investigated the effects of coronary rotational atherectomy (PTCRA) on plasma levels of endothelin-1 (ET-1), atrial natriuretic peptide (ANP), and cyclic adenosine monophosphate (cAMP). We studied 14 patients undergoing PTCRA and compared them with 14 patients undergoing plain balloon angioplasty. Blood samples were taken from the femoral vein at baseline, ...
Albäck A - - 1998
OBJECTIVES: To determine the utility of percutaneous transluminal angioplasty (PTA) of the femoropopliteal segment in patients with claudication and critical leg ischaemia (CLI). DESIGN: Longitudinal observational study. SETTING: A university based vascular surgical centre. MATERIAL: Ninety-five patients with stenosing or occlusive arterial lesions of the femoropopliteal segment underwent 52 primary ...
Delacrétaz E - - 1998
AIMS: There is a continuous increase in the number of percutaneous transluminal coronary angioplasty procedures performed per year per population in most industrialised countries. This analysis searches for trends in treatment decisions after diagnostic coronary angiography. METHODS AND RESULTS: The degree of coronary artery disease and the therapeutic strategy were ...
Domanovits H - - 1998
It has been debated that primary coronary angioplasty could be more effective if immediate antithrombotic therapy would contribute to a faster recanalization of the infarct-related artery. This is the first report of a patient who presented at the emergency department with acute anterolateral myocardial infarction, in whom a single bolus ...
Suryapranata H - - 1998
BACKGROUND: Although the benefits of primary angioplasty in acute myocardial infarction have been demonstrated, several areas for improvement remain. Therefore, a prospective randomized trial comparing primary stenting with balloon angioplasty in patients with acute myocardial infarction was conducted. METHODS AND RESULTS: Patients with acute myocardial infarction were randomly assigned to ...
Reisman M - - 1998
Rotational atherectomy results in platelet activation and heat generation, which may impact artery size immediately after treatment. In addition, arteries treated with balloon angioplasty may exhibit recoil within 24 hours. In this study, arteries treated with rotational atherectomy, with and without adjunctive balloon angioplasty, were analyzed by quantitative coronary angiography ...
Rabbani R R - - 1998
We examined the short- and long-term outcome of 327 patients at Mayo Clinic who had undergone coronary angioplasty of saphenous vein graft stenoses to determine whether the traditional 6-month assessment of clinical end points after coronary angioplasty is as useful as it is for patients who have had angioplasty of ...
Yoshida S - - 1998
This study assessed the utility of myocardial fatty acid imaging using 123I-labeled 15-(beta-methyl-p-iodophenyl-pentadecanic acid (BMIPP) to evaluate improvement after percutaneous transluminal coronary angioplasty in patients with chronic coronary artery disease. METHODS: Thirty-eight patients (18 old myocardial infarction and 20 angina pectoris patients) with chronic coronary artery stenosis and 8 control ...
Martí V - - 1998
We studied 2 groups of patients with (n = 14) and without (n = 42) minor coronary dissections following cutting balloon angioplasty. Patients with a minor dissection had a longer length of lesion, higher percentage of stenosis, and greater acute gain after angioplasty; at 6-month follow-up both groups had a ...
Vogt A - - 1998
BACKGROUND: Direct percutaneous transluminal coronary angioplasty (PTCA) is widely accepted in the treatment of acute myocardial infarction since excellent results had been reported from several small randomized trials. Less favourable results were observed in large-scale registries. In particular, the use of stents in acute myocardial infarction has become common practice ...
Burn S - - 1998
A case of cardiac syncope is presented, associated with single vessel coronary disease. The mechanism of the syncope would appear to be a ventricular arrhythmia with transmural myocardial ischaemia due to transient occlusion of the diseased coronary artery. The symptoms and electrocardiographic abnormalities were reproduced and subsequently abolished by percutaneous ...
Luo J F - - 1998
The long-term patency of saphenous vein graft (SVG) lesions after intervention has been shown to be improved with new interventional techniques such as stents. Long-term outcome of patients undergoing successful angioplasty of totally occluded old SVGs with new devices is unknown. From July 1994 to June 1996, 19 patients with ...
Ochiai M - - 1998
We classified 33 patients with a first anterior infarction and single-vessel disease who had undergone successful primary angioplasty and had a patent infarct-related artery into groups based on the development of late potentials. Left ventricular function improved between 1 and 3 months after angioplasty only in patients without late potentials; ...
Ritchie J L - - 1998
Coronary angioplasty is performed > 1,000 times daily in a variety of health care settings in the public and private sectors in the USA. How outcomes for this procedure differ in the Department of Veterans Affairs and the private sector is unknown. The purpose of this study was to compare ...
Dubois-Randé J L - - 1998
BACKGROUND: The influence of the 14F Hemopump on coronary hemodynamics in patients with coronary artery disease remains unknown. METHODS: Systemic and coronary hemodynamic measurements were obtained in eight patients among 13 who underwent high-risk coronary angioplasty in our institution with the support of the Hemopump. Coronary blood flow velocity was ...
Numaguchi Y - - 1998
We described the techniques and efficacy of intra-arterial papaverine hydrochloride infusion (IA-PAP) for symptomatic vasospasm due to aneurysmal subarachnoid hemorrhage based on our experience and review of the literature. Angiographic improvement occurred almost always, but only 50% of patients who presented with acute symptoms showed remarkable clinical improvement after the ...
van Hout B A - - 1998
Cost-effectiveness analyses are routinely performed to determine whether the additional cost of a novel therapy is balanced by additional effectiveness. The definitions of costs and effects involve a variety of assumptions, both in general economic terms and with regard to the specific medical setting under consideration. Similarly, differing criteria for ...
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