946 resultados para acute myocardial infarction without ST elevation
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The objective of this study was to ascertain the risk of acute myocardial infarction, invasive cardiac procedures, and mortality among patients with newly diagnosed angina over five years. This is an Incident cohort study of patients with primary care data linked to secondary care and mortality data. 40 primary care practices in Scotland participated. Participants 1785 patients with a diagnosis of angina as their first manifestation of ischaemic heart disease were monitored between1 January 1998 to 31 December 2001.
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Introduction : Population aging leads to a considerable increase in the prevalence of specific diseases. We aimed to assess if those changes were already reflected in an Internal Medicine ward. Methods : Anonymous data was obtained from the administrative database of the department of internal medicine of the Lausanne University Hospital (CHUV). All hospitalizations of adult (>=18 years) patients occurring between 2003 and 2011 were included. Infections, cancers and diseases according to body system (heart, lung...) were defined by the first letter of the ICD-10 code for the main cause of hospitalization. Specific diseases (myocardial infarction, heart failure...) were defined by the first three letters of the ICD-10 codes for the main cause of hospitalization. Results : Data from 32,741 hospitalizations occurring between 2003 and 2011 was analyzed. Cardiovascular (ICD-10 code I) and respiratory (ICD-10 code J) diseases ranked first and second, respectively, and their ranks did not change during the study period (figure). Digestive and endocrine diseases decreased while psychiatric diseases increased from rank 9 in 2003 to rank 6 in 2011 (figure). Among specific diseases, pneumonia (organism unspecified, code J18) ranked first in 2003 and second in 2011. Acute myocardial infarction (code I21) ranked second in 2003 and third in 2011. Chronic obstructive pulmonary disease with acute lower respiratory infection (code J44) ranked third in 2003 and decreased to rank 8 in 2011. Conversely, heart failure (code I50) increased from rank 8 in 2003 to rank 1 in 2011 and delirium (not induced by alcohol and other psychoactive substances, code F05) increased from below rank 20 in 2003 to rank 4 in 2011. For more details, see table. Conclusion : In less than 10 years, considerable changes occurred in the presentation of patients attending an Internal Medicine ward. The changes in diseases call for adaptations in hospital staff and logistics.
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Current applications of cardiac magnetic resonance (CMR) imaging offer a wide spectrum of indications in the setting of acute cardiac care. In particular, CMR is helpful for the differential diagnosis of chest pain by detection of myocarditis and pericarditis. Also, takotsubo cardiomyopathy and acute aortic diseases can be evaluated by CMR and are important differential diagnoses in patients with acute chest pain. In patients with restricted windows for echocardiography, CMR is the method of choice to evaluate complications of acute myocardial infarction (AMI). In AMI, CMR allows for a unique characterization of myocardial damage by quantifying necrosis, microvascular obstruction, oedema (=area at risk), and haemorrhage. These capabilities will help us to understand better the pathophysiological events during infarction and will also allow to assess new treatment strategies in AMI. To what extent the information on tissue damage will guide patient management is not yet clear and further research in this field is warranted. In the near future, CMR will certainly become more routine in acute cardiac care units, as manufacturers are now focusing strongly on this aspect of user-friendliness. Finally, in the next decade or so, MRI of other nuclei such as fluorine and carbon might become a clinical reality, which would allow for metabolic and targeted molecular imaging with excellent sensitivity and specificity
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OBJECTIVE To assess the association of sociodemographic and self-rated health in the presence of cardiovascular diseases and the association of this perception with the type of disease. METHODS A cross-sectional population survey study carried out with 1,232 individuals aged between 20 and 59 years of both genders living in the metropolitan region of Maringá-PR. Data were analyzed using multiple and simple logistic regression. RESULTS In multivariate analysis, the age range and self-rated health were associated with cardiovascular disease, and in the univariate analysis self-rated regular health was associated with arterial hypertension, while self-rated poor health was associated to heart failure, stroke, and to acute myocardial infarction (heart attack). CONCLUSION The differences in association of self-rated health with these diseases can indicate how individuals with certain characteristics cope with the disease, allowing for more individualized and specific health care.
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Rupture of unstable plaques may lead to myocardial infarction or stroke and is the leading cause of morbidity and mortality in western countries. Thus, there is a clear need for identifying these vulnerable plaques before the rupture occurs. Atherosclerotic plaques are a challenging imaging target as they are small and move rapidly, especially in the coronary tree. Many of the currently available imaging tools for clinical use still provide minimal information about the biological characteristics of plaques, because they are limited with respect to spatial and temporal resolution. Moreover, many of these imaging tools are invasive. The new generation of imaging modalities such as magnetic resonance imaging, nuclear imaging such as positron emission tomography and single photon emission computed tomography, computed tomography, fluorescence imaging, intravascular ultrasound, and optical coherence tomography offer opportunities to overcome some of these limitations. This review discusses the potential of these techniques for imaging the unstable plaque.
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ABSTRACT: BACKGROUND: Chest pain raises concern for the possibility of coronary heart disease. Scoring methods have been developed to identify coronary heart disease in emergency settings, but not in primary care. METHODS: Data were collected from a multicenter Swiss clinical cohort study including 672 consecutive patients with chest pain, who had visited one of 59 family practitioners' offices. Using delayed diagnosis we derived a prediction rule to rule out coronary heart disease by means of a logistic regression model. Known cardiovascular risk factors, pain characteristics, and physical signs associated with coronary heart disease were explored to develop a clinical score. Patients diagnosed with angina or acute myocardial infarction within the year following their initial visit comprised the coronary heart disease group. RESULTS: The coronary heart disease score was derived from eight variables: age, gender, duration of chest pain from 1 to 60 minutes, substernal chest pain location, pain increases with exertion, absence of tenderness point at palpation, cardiovascular risks factors, and personal history of cardiovascular disease. Area under the receiver operating characteristics curve was of 0.95 with a 95% confidence interval of 0.92; 0.97. From this score, 413 patients were considered as low risk for values of percentile 5 of the coronary heart disease patients. Internal validity was confirmed by bootstrapping. External validation using data from a German cohort (Marburg, n = 774) revealed a receiver operating characteristics curve of 0.75 (95% confidence interval, 0.72; 0.81) with a sensitivity of 85.6% and a specificity of 47.2%. CONCLUSIONS: This score, based only on history and physical examination, is a complementary tool for ruling out coronary heart disease in primary care patients complaining of chest pain.
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Cell-based regenerative therapy treatment of cardiovascular diseases considered as irreversible, as acute myocardial infarction, chronic ischemic heart failure, non-ischemic dilated cardiomyopathy and refractory angina pectoris. Large randomized clinical trials with hard clinical endpoints are still necessary before considering cell-based regenerative therapy as a valuable alternative therapeutic option in cardiology.
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BACKGROUND: A phase I dose-escalation trial of transarterial chemoembolisation (TACE) with idarubicin-loaded beads was performed in cirrhotic patients with hepatocellular carcinoma (HCC). AIM: To estimate the maximum-tolerated dose (MTD) and to assess safety, efficacy, pharmacokinetics and quality of life. METHODS: Patients received a single TACE session with injection of 2 mL drug-eluting beads (DEBs; DC Bead 300-500 μm) loaded with idarubicin. The idarubicin dose was escalated according to a modified continuous reassessment method. MTD was defined as the dose level closest to that causing dose-limiting toxicity (DLT) in 20% of patients. RESULTS: Twenty-one patients were enrolled, including nine patients at 5 mg, six patients at 10 mg, and six patients at 15 mg. One patient at each dose level experienced DLT (acute myocardial infarction, hyperbilirubinaemia and elevated aspartate aminotransferase (AST) at 5-, 10- and 15-mg, respectively). The calculated MTD of idarubicin was 10 mg. The most frequent grade ≥3 adverse events were pain, elevated AST, elevated γ-glutamyltranspeptidase and thrombocytopenia. At 2 months, the objective response rate was 52% (complete response, 28%, and partial response, 24%) by modified Response Evaluation Criteria in Solid Tumours. The median time to progression was 12.1 months (95% CI 7.4 months - not reached); the median overall survival was 24.5 months (95% CI 14.7 months - not reached). Pharmacokinetic analysis demonstrated the ability of DEBs to release idarubicin slowly. CONCLUSIONS: Using drug-eluting beads, the maximum-tolerated dose of idarubicin was 10 mg per TACE session. Encouraging responses and median time to progression were observed. Further clinical investigations are warranted (NCT01040559).
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Following acute myocardial infarction, necrotic cardiac tissue is replaced by scar leading to ventricular remodeling and pump failure. Transplantation of autologous bone marrow-derived cells into the heart, early post-infarct, aims to prevent ventricular remodeling. This strategy has been evaluated in four controlled, randomized clinical trials, which provided mixed results. A transient improvement in ventricular function was observed in one trial, and a modest improvement (the duration of which remains to be determined) in an additional trial, whereas two trials showed negative results. A modest benefit of bone marrow cell transplantation was also observed in patients with chronic ischemic heart disease. Despite mixed results reported so far, cell therapy of heart disease still is in its infancy and has considerable room for improvement.
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PURPOSE: The purpose of this study is to explore the periodical patterns of events and deaths related to cardiovascular disease (CVD), acute myocardial infarction (AMI) and stroke in Swiss adults (≥ 18 years). METHODS: Mortality data for period 1969-2007 (N=869,863 CVD events) and hospitalization data for period 1997-2008 (N=959,990 CVD events) were used. The annual, weekly and circadian distribution of CVD-related deaths and events were assessed. Multivariate analysis was conducted using multinomial logistic regression adjusting for age, gender and calendar year and considering deaths from respiratory diseases, accidents or other causes as competitive events. RESULTS: CVD deaths and hospitalizations occurred less frequently in the summer months. Similar patterns were found for AMI and stroke. No significant weekly variation for CVD deaths was found. Stratification by age and gender showed subjects aged <65 years to present a higher probability of dying on Mondays and Saturday, only for men. This finding was confirmed after multivariate adjustment. Finally, a circadian variation in CVD mortality was observed, with a first peak in the morning (8-12 am) and a smaller second peak in the late afternoon (2-6 pm). This pattern persisted after multivariate adjustment and was more pronounced for AMI than for stroke. CONCLUSION: There is a periodicity of hospitalizations and deaths related to CVD, AMI and stroke in Switzerland. This pattern changes slightly according to the age and sex of the subjects. Although the underlying mechanisms are not fully identified, preventive measures should take into account these aspects to develop better strategies of prevention and management of CVD.
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Ischaemic heart disease as the result of impaired blood supply is currently the leading cause of failure and death. Ischaemic heart disease refers to a group of clinicopathological symptoms including angina pectoris, acute myocardial infection, chronic ischemic heart disease, as well as heart failure and sudden cardiac death. Coronary artery ischemic heart disease, as well as heart failure and sudden cardiac death. Coronary artery thrombosis is the most common cause of acute myocardial infarction and sudden cardiac death. A thrombotic event is the result of two different processes: plaque disruption and endothelial erosion. The morphology of a "vulnerable plaque" is more clinically indicative than the plaque volume and the degree of luminal stenosis. However, identification of patients with vulnerable plaques remains very challenging and demands the development of new methods of coronary plaque imaging. Sudden death resulting from ventricular fibrillation or AV block frequently complicates coronary thrombosis, accounting for up to 50% of mortality.If a coronary artery is occluded for more than 20 min, irreversible damage to the pericardium occurs. Timely coronary recanalization and myocardial reperfusion limit the extent of myocardial necrosis, but may induce "reperfusion injuries", stunned myocardium, or reperfused myocardial hemorrhagic infarcts, all of which are related to infarct siz and coronary occlusion time. Reperfusion injuries have been described after cardiac surgery, percutaneous transluminal coronary angioplasty, and fibrinolysis. A prolonged imbalance between the supply of and demand for myocardial oxygen and nutrition leads to a subacute, acute, or chronic state (aka hibernating myocardium) of myocardial ischemia. Ischemic heart disease is bwelieved to be the underlying cause of heart failure in approximately two-thirds of patients, resulting from acute and/or chronic injury to the heart.
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There are conflicting data on the prevalence of coronary events and the quality of the management of modifiable cardiovascular risk factors (CVRF) inHIV-infected patients. Methods.We performed a retrospective descriptive study to determine the prevalence of coronary events and to evaluate the management of CVRF in a Mediterranean cohort of 3760 HIV-1-infected patients from April 1983 through June 2011. Results.We identified 81 patients with a history of a coronary event (prevalence 2.15%); 83% of them suffered an acute myocardial infarction. At the time of the coronary event, CVRF were highly prevalent (60.5% hypertension, 48% dyslipidemia, and 16% diabetes mellitus).OtherCVRF, such as smoking, hypertension, lack of exercise, and body mass index, were not routinely assessed. After the coronary event, a significant decrease in total cholesterol ( � = 0.025) and LDLcholesterol ( � = 0.004) was observed. However, the percentage of patients whomaintained LDL-cholesterol > 100mg/dL remained stable (from 46% to 41%, � = 0.103). Patients using protease inhibitors associated with a favorable lipid profile increased over time ( � = 0.028). Conclusions.The prevalence of coronary events in our cohort is low. CVRF prevalence is high and theirmanagement is far from optimal. More aggressive interventions should be implemented to diminish cardiovascular risk in HIV-infected patients.
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Important clinical trials and therapeutic advances in the field of cardiology have been presented in 2014. New evidences on the management of acute myocardial infarction and the duration of dual antiplatelet therapy after coronary stent implantation have been published. A new class of therapeutic agents seems to offer promising perspectives for patients with heart failure and reduced ejection fraction. The new generation of subcutaneous or MRI-compatible implantable defibrillators is a major technological breakthrough. Finally, the European Society of Cardiology published new recommendations for the management of patients with cardiovascular diseases. This selective review of the literature summarizes the most important studies in the field of interventional cardiology, rhythmology, heart failure and cardiac imaging.
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The overall aim of this study was to achieve a deeper understanding of the relationship between human suffering, disease and illness. The study is rooted in the health-care scientific research tradition as developed by Eriksson and her co-researchers at Åbo Akademi. The over-riding methodological initiative was Gadamer's hermeneutic philosophy. The main research question is: What is suffering of illness and disease? Sub-questions: Which characteristics occur when people experience being acutely ill (Article I)? What do the concepts acute, critical and chronic mean semantically (Article II)? In which way does the relation between the human being's experience of disease, illness and suffering, be manifested and understood? How does one characterize the relationship between the experience of contracting disease, illness and suffering (Article III)? How can the hermeneutical conversation contribute to the understanding of suffering caused by disease and illness (Article IV)? The results of sub-study 1 showed that patients with acute myocardial infarction saw themselves as coping, competent, and autonomous individuals. They were used to exercising control, and it was difficult for them to relinquish control. The semantic analysis of acute in sub-study 2 revealed that the concept acute has had an unclear content in the Norwegian language over the past 65 years. Acute, as a concept, says something about the way a situation arises, but not much about what it is that arises. In sub-study, 3 the relation between disease, illness and suffering is discussed. The expression of illness and suffering as verbs can convey more clearly what it is that occurs with persons who experience disease, illness and suffering. The discussion in sub-study 4 focuses on trustworthiness in hermeneutical studies.
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This paper reports what is apparently the first observation of Mycoplasma pneumoniae in association with Chlamydia pneumoniae in thrombosed ruptured atheromas. We performed electron microscopy and in situ hybridization in specimens from three patients who died of acute myocardial infarction. These patients had typical symptoms of acute ischemic syndrome. Mycoplasmas were present mainly in the lipid core of the ruptured thrombosed plaque. Vulnerable atheromas are rich in cholesterol and may favor the growth of mycoplasmas, the only microorganisms that require cholesterol for survival. We suggest that the association of Mycoplasma pneumoniae and Chlamydia pneumoniae may increase the virulence of these microorganisms, favoring proliferation, plaque inflammation and possibly plaque rupture.