Search Results
Results 351 - 400 of 1181
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Kawakami T - - 1999
We review three patients who developed chronic radiodermatitis subsequent to undergoing multiple percutaneous transluminal coronary angioplasties (PTCAs). All patients had had chronic ischaemic heart disease (IHD) and had undergone lengthy PTCA on several occasions. The skin eruption was characterized by an atrophic rectangular plaque on the left upper back, presenting ...
Herzog C A - - 1999
BACKGROUND: The optimal method of coronary revascularization in dialysis patients is controversial, as previous small retrospective studies have reported increased cardiac events after percutaneous transluminal coronary angioplasty (PTCA) compared with coronary artery bypass (CAB) surgery. The purpose of this study was to compare the long-term survival of chronic dialysis patients ...
Helgeson V S - - 1999
OBJECTIVE: We tested whether the psychological components of cognitive adaptation theory would predict new coronary events after a first percutaneous transluminal coronary angioplasty (PTCA). METHODS: A consecutive sample of patients treated successfully with PTCA were enrolled in the study. Of 343 patients approached, 303 (88%) agreed to participate and were ...
Metz D - - 1999
This study assesses the feasibility and safety of immediate sheath removal after coronary angioplasty with the use of 6 French (Fr) guiding catheters by the femoral route and weight-adjusted low-dose heparin (100 IU/kg). We prospectively evaluated such a strategy among a single-center cohort of 261 consecutive patients undergoing routine percutaneous ...
Ito H - - 1999
There are few district-based surveys to investigate the actual effects of thrombolytic therapy and percutaneous transluminal coronary angioplasty (PTCA) on short-term mortality in patients with acute myocardial infarction (AMI) in Japan. The study population comprised 974 patients (319 women and 655 men, aged 69 +/- 12 years) admitted with confirmed ...
Tooth L R - - 1999
OBJECTIVE: To examine symptom, functional status, and psychological status profiles after percutaneous transluminal coronary angioplasty (PTCA) and determine indicators of outcome. DESIGN: Descriptive and correlational with repeated measures. SETTING: Hospital or home (2.1 days before PTCA) and home (3.9 and 10.2 months after discharge). MEASURES: Self-administered questionnaires (developed for study) ...
Gottschall C A - - 1999
To evaluate the value of recurrent anginal symptoms combined with seriation of conventional EKG in detecting coronary restenosis (renarrowing > or = 50% at the site dilated) after PTCA. Two hundred and seventy patients (204 men, mean age 53.1 +/- 9.4 years) with angina who submitted to successful PTCA of ...
Goy J J - - 1999
BACKGROUND: Percutaneous transluminal coronary angioplasty (PTCA) and coronary artery bypass surgery (CABG) improve the clinical status of patients with isolated proximal left anterior descending coronary artery stenosis. At 2 years, only additional revascularization was more frequently required after PTCA. METHODS AND RESULTS: We monitored 134 patients randomized to PTCA (n=68) ...
Marso S P - - 1999
The ULTIMA registry was a prospective, multicenter, international registry of 277 patients who underwent percutaneous coronary interventions of unprotected left main trunk stenosis. The 40 patients who underwent an emergency percutaneous left main intervention for acute myocardial infarction are the focus of this study. We compared the results of primary ...
George J - - 1999
Recent data suggests that autoimmune factors play an important role in the pathogenesis of atherosclerosis. In this context several autoantigens have been shown to elicit an immune response that results in accelerated atherosclerotic plaque formation. In the present study, we investigated whether elevated titers of anti-oxidized low density lipoprotein (oxLDL), ...
Maynard C - - 1999
Although it is effective for appropriate older patients with acute myocardial infarction (AMI), only about 25% of patients 65 years and older are eligible for thrombolytic therapy. Primary percutaneous transluminal coronary angioplasty (PTCA) may be a suitable alternative reperfusion therapy, particularly for older patients with high risk of intracerebral haemorrhage ...
Moreno R - - 1999
Compared with primary angioplasty [percutaneous transluminal coronary angioplasty (PTCA)], rescue PTCA is associated with lower angiographic success and higher reocclusion rates, especially after thrombolysis with tissue-type plasminogen activator (tPA). Although stent placement during primary PTCA has been demonstrated to be safe and even to improve the angiographic results achieved by ...
Bernstein S J - - 1999
OBJECTIVE: To evaluate the appropriateness of referral following coronary angiography in Sweden. DESIGN: Prospective survey and review of medical records. PATIENTS: Consecutive series of 2767 patients who underwent coronary angiography in Sweden between May 1994 and January 1995 and were considered for coronary revascularisation. MAIN OUTCOME MEASURES: Percentage of patients ...
Strauss R - - 1999
STUDY OBJECTIVES: To investigate the geographical distribution of Percutaneous Transluminal Coronary Angioplasty (PTCA) and morbidity for coronary heart disease, angina pectoris and myocardial infarction by spatial analysis of the standardized morbidity rates (SMR) on district level. To identify clusters by Moran's I Statistic and the Regional Spatial Autocorrelation Coefficient (RSAC) ...
Masuda D - - 1999
Enhanced external counterpulsation (EECP) is a noninvasive treatment for chronic stable angina, which works by recruiting and developing the coronary collateral vessels. Coronary perfusion and coronary flow reserve (CFR) were evaluated by nitrogen-13 (13N) ammonia positron emission tomography (PET) in a patient who had undergone EECP. The patient, who had ...
Maynard C - - 1999
CONTEXT: An increasing number of patients undergoing percutaneous transluminal coronary angioplasty (PTCA) are receiving coronary stents. OBJECTIVES: To assess whether the introduction of coronary stenting has changed hospital mortality or same-admission coronary artery bypass grafting (CABG) and whether the hospital's procedure volume affects these outcomes. DESIGN: Observational study using hospital ...
Adgey A A - - 1999
Since the introduction of percutaneous transluminal coronary angioplasty (PTCA), percutaneous intervention with balloon catheters, stents, and atherectomy devices has become a widely accepted practice. The persistent complication of non-Q-wave myocardial infarction (MI), as evidenced by increased cardiac enzyme levels after intervention, has aroused only moderate concern because its incidence was ...
Hasdai D - - 1999
BACKGROUND: Because of the increased propensity of intracoronary thrombi to form in cigarette smokers, percutaneous transluminal angioplasty (PTCA) for acute myocardial infarction (AMI) may be less effective in smokers. We sought to determine the impact of smoking status on outcome after PTCA for AMI. METHODS: Patients enrolled in the GUSTO ...
Malenka D J - - 1999
BACKGROUND: Some deaths after percutaneous coronary angioplasty (PTCA) occur in high-risk situations (eg, shock), whereas others are unexpected and related to procedural complications. To better describe the epidemiologic causes of death after PTCA, we undertook a systematic review of all in-hospital PTCA deaths in Northern New England from 1990 to ...
Vogt A - - 1999
From July 1994 to October 1998, 4280 primary PTCA procedures were entered into the registry of the Arbeitsgemeinschaft Leitender Kardiologischer Krankenhausärzte. The success rate of PTCA, as defined by TIMI-3 perfusion of the infarct-related artery was 87.1%, in-hospital mortality was 10.2% and 2.6% had reinfarction. The most powerful predictors of ...
Gowda M S - - 1999
BACKGROUND: We analyzed the risk factors and outcomes associated with non-Q wave myocardial infarction (MI) in females and males. We studied 376 consecutive patients N 275 males (73%) and 101 females (27%) N who presented with non-Q wave MI and had percutaneous transluminal coronary angioplasty (PTCA) prior to discharge during ...
Dangas G - - 1999
Achievement of infarct-related artery (IRA) patency with thrombolytic agents has improved the clinical outcome of patients with acute myocardial infarction (MI). Primary angioplasty (PTCA) for direct IRA reperfusion may further improve patient outcome by overcoming several limitations of thrombolytic therapy, e.g. by decreasing the risk of haemorrhagic stroke, increasing the ...
Budde T - - 1999
AIMS: The purpose of this part of the INTERVENT project was (1) to redefine and individually predict post-procedural complications associated with coronary interventions, including alternative/adjunctive techniques to PTCA and (2) to employ the prognostic INTERVENT computer model to clarify the structural relationship between (pre)-procedural risk factors and post-procedural outcome. METHODS ...
Hamada S - - 1999
Evaluation of myocardial perfusion in the early stage of acute myocardial infarction (MI) is clinically important for adjunctive therapies to minimize infarct size. To determine the role of early scintigraphic detection of impaired myocardial reperfusion after primary coronary angioplasty (PTCA) in patients with acute MI, semiquantitative technetium-99m tetrofosmin single-photon emission ...
Bech G J - - 1999
BACKGROUND: After regular coronary balloon angioplasty, it would be helpful to identify those patients who have a low cardiac event rate. Coronary angiography alone is not sensitive enough for that purpose, but it has been suggested that the combination of optimal angiographic and optimal functional results indicates a low restenosis ...
Sousa J E - - 1999
In 1979, the first transluminal coronary angioplasty (PTCA) was performed in Brazil, two years after the original contribution of Andreas Gruentzig, in Zurich. In the years which followed, the development of PTCA in the country grew and in the mid eighties several centres had already had the experience of more ...
Oshima S - - 1999
To investigate the effect of pre-treatment of a thrombus with a low dose of urokinase on establishing patency in a persistent infarct-related artery (IRA) during direct percutaneous coronary angioplasty (PTCA), the frequency of acute restenosis during direct PTCA, alone, or in combination with the intracoronary administration of urokinase, was examined ...
Fuchi T - - 1999
A 72-year-old female with idiopathic thrombocytopenic purpura (ITP) complained of severe chest pain. Electrocardiography showed ST-segment depression and negative T wave in I, aVL and V4-6. Following a diagnosis of acute myocardial infarction (AMI), urgent coronary angiography revealed 99% organic stenosis with delayed flow in the proximal segment and 50% ...
Schräder R - - 1999
OBJECTIVES: To assess the effect of nonionic versus ionic contrast media on abrupt vessel closure and major ischemic complications after coronary angioplasty. BACKGROUND: There is a continuous debate about the "thrombogenic potential" of nonionic contrast media. The results of both in vitro and in vivo investigations are incongruent. METHODS: We ...
Kanzaki H - - 1999
A meta-analysis reported that nifedipine increased mortality dose-dependently in patients with coronary artery disease. However, there have been few studies (specifically in Asians) on the long-term prognosis of patients treated with calcium antagonists after successful coronary angioplasty (PTCA). The subjects consisted of 583 consecutive patients (461 males, aged 59 +/- ...
Ochiai K - - 1999
With the advent of thrombolytic therapy, hemorrhagic myocardial infarction (HMI) has been observed in experimental and human autopsy studies. However, its clinical implications remain undetermined, because of the absence of a reliable method to detect its presence in vivo. This study was designed to evaluate the clinical implications of HMI ...
Mariotto A - - 1999
OBJECTIVES: To examine the distribution of interventional cardiac catheterization laboratories, their case load, the time trends, and the regional variation of percutaneous transluminal cutaneous angioplasty (PTCA) utilization in Italy. METHODS: Analysis of data was provided by the annual reports of the Italian Group of Studies and Interventional Cardiology over the ...
Ferrari M - - 1999
BACKGROUND: In the catheter laboratory there is a need for functional tests validating the hemodynamic significance of coronary artery stenosis. OBJECTIVES: It was the objective of our study to compare the long-term cardiac event rate and the clinical symptoms in patients with reduced coronary flow velocity reserve (CFVR) and standard ...
Guarneri E M - - 1999
At our institution, elective coronary interventions are performed without formal surgical backup. Instead, a policy of "standby cardiopulmonary support" (CPS), and "next-available operating room" is used. Standby CPS requires a perfusionist dedicated to the catheterization laboratory with immediate access to CPS apparatus. Between January 1989 and June 1994 we performed ...
Kowalski J - - 1999
We estimated the effect of pentoxifylline (PTX) on the respiratory burst (examined by chemiluminescence method) of unprimed and primed neutrophils with tumor necrosis factor-alpha (TNF-alpha) in patients with stable angina pectoris. Chemiluminescence of non-stimulated as well as formyl-methionyl-leucyl-phenylalanine (fMLP) and phorbol myristate acetate (PMA) stimulated neutrophils was measured. We studied ...
Joksimovic L - - 1999
The objective of this study is to examine the role of a particular stress-enhancing psychosocial risk factor, termed overcommitment, in predicting restenosis after successful percutaneous transluminal coronary angioplasty (PTCA). Overcommitment defines a personal pattern of coping with demands characterized by excessive striving in combination with a strong desire of being ...
- - 1999
The purpose of this multicenter study is to test the hypothesis that opening an occluded infarct-related artery late after acute myocardial infarction in asymptomatic patients without evidence of residual ischemia would reduce cardiac events over three years of follow-up. The search for an explanation of the complex relationship between the ...
Klinge R - - 1999
AIMS: We investigated whether levels of N-terminal proatrial natriuretic peptide (N-terminal proANP) reflect the severity of coronary artery disease in chronic, stable angina pectoris. Furthermore, we investigated if revascularization by percutaneous transluminal coronary angioplasty (PTCA) affected the N-terminal proANP level and, finally, whether restenosis could be predicted by changes in ...
Serruys P W - - 1999
BACKGROUND: The 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase inhibitors competitively inhibit biosynthesis of mevalonate, a precursor of non-sterol compounds involved in cell proliferation. Experimental evidence suggests that fluvastatin may, independent of any lipid lowering action, exert a greater direct inhibitory effect on proliferating vascular myocytes than other statins. The FLARE ...
Waldenberger F R - - 1998
Patients with a high risk for myocardial revascularization by cardiological or surgical means can be supported during high-risk PTCA with mechanical circulatory support (supp HR-PTCA). Between November 1994 and June 1997 we performed 28 supp HR-PTCA's under protection of a heart-lung machine (HLM) with femoro - femoral cannulation under regional ...
Horie H - - 1998
BACKGROUND: Although the short-term and long-term beneficial effects of early coronary revascularization by primary PTCA or thrombolytic therapy have been established for acute myocardial infarction, thrombolytic therapy >24 hours after the onset of acute myocardial infarction has not been shown to improve clinical outcome. The purpose of this study was ...
Ohsawa H - - 1998
BACKGROUND: We recently confirmed that pemirolast potassium, an antiallergic agent, markedly inhibits migration and proliferation of vascular smooth muscle cells. It has also been reported that pemirolast inhibits intimal hyperplasia in animal experiments. METHODS AND RESULTS: To elucidate the preventive effects of pemirolast on restenosis after percutaneous transluminal coronary angioplasty ...
Kimble L P - - 1998
Clinicians express concern that because percutaneous transluminal coronary angioplasty (PTCA) is minimally invasive and yields rapid symptom relief, patients with successful PTCA may be too optimistic about their future health status, may no longer perceive heart disease as a threat to health, and thus, may view cardiac risk-reduction behaviors as ...
Dakik H A - - 1998
BACKGROUND: Patients who have inducible ischemia after acute myocardial infarction (AMI) generally undergo coronary angiography with the intent to revascularize. Whether this approach is superior to intensive treatment with anti-ischemic medications is unknown. METHODS AND RESULTS: We performed a prospective, randomized pilot study comparing intensive medical therapy with coronary angioplasty ...
Ramsdale D R - - 1998
Coronary artery perforation is an unusual but well recognised complication of Percutaneous Transluminal Coronary Angioplasty (PTCA) and coronary atherectomy and may lead to hemopericardium and cardiac tamponade. If the perforation cannot be sealed by prolonged inflation with a perfusion balloon catheter, emergency cardiac surgery is usually necessary. This case report ...
Waldecker B - - 1998
OBJECTIVES: The purpose of this study was to analyze long-term follow-up information over several years from consecutive, unselected patients treated with direct percutaneous transluminal coronary angioplasty (PTCA) for acute myocardial infarction (MI). BACKGROUND: Direct PTCA is often used in patients with acute MI. Short-term results are favorable. However, there is ...
Henderson R A - - 1998
BACKGROUND: Percutaneous transluminal coronary angioplasty (PTCA) and coronary-artery bypass grafting (CABG) are both effective intervention strategies for patients with coronary heart disease. We report comparative long-term clinical and health-service cost findings for these interventions in the first Randomised Intervention Treatment of Angina (RITA-1) trial. METHODS: 1011 patients with coronary heart ...
Ott I - - 1998
This study sought to investigate monocyte procoagulant activity and Mac-1 expression after successful percutaneous transluminal coronary angioplasty (PTCA) in acute myocardial infarction (AMI). An increased leukocyte count is an important risk factor for subsequent adverse cardiac events in AMI. Cellular procoagulant responses may contribute to the risk of thrombotic events ...
Gottlieb A - - 1998
OBJECTIVE: Patients with coronary artery disease (CAD) who undergo noncardiac surgery are at increased risk for perioperative myocardial infarction (PMI). Undergoing successful coronary artery bypass grafting (CABG) before such surgery has been shown to decrease perioperative cardiac morbidity and mortality. Percutaneous transluminal coronary angioplasty (PTCA) is an alternative treatment for ...
Rupprecht H J - - 1998
BACKGROUND: There is an ongoing controversy as to whether repeat coronary angiography should be routinely performed after successful percutaneous transluminal coronary angioplasty (PTCA). METHODS: We examined the 10-year outcome in 400 patients who had or had not undergone an angiographic control 6 months after successful PTCA and a subsequent event-free ...
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