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 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The aim of the study was to use data from an electronic medical record system (EMR) to look for factors that would help us diagnose acute myocardial infarction (AMI) with the ultimate aim of using these factors in a decision support system for chest pain. We extracted 887 records from the electronic medical record system (EMR) in Selayang Hospital, Malaysia. We cleaned the data, extracted 69 possible variables and performed univariate and multivariate analysis. From the univariate analysis we find that 22 variables are significantly associated with a diagnosis of AMI. However, multiple logistic regression reveals that only 9 of these 22 variables are significantly related to a diagnosis of AMI. Race (Indian), male sex, sudden onset of persistent crushing pain, associated sweating and a history of diabetes mellitus are significant predictors of AMI. Pain that is relieved by other means and history of heart disease on treatment are important predictors of a diagnosis other than AMI. The degree of accuracy is high at 80.5%. There are 13 factors that are significant in the univariate analysis but are not among the nine significant factors in the multivariate analysis. These are location of pain, associated palpitations, nausea and vomiting; pain relieved by rest, pain aggravated by posture, cough, inspiration and exertion; age more than 40, being a smoker and abnormal chest wall and face examination. We believe that these findings can have important applications in the design of an intelligent decision support system for use in medical care as the predictive capability can be further refined with the use of intelligent computational techniques.
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PMID:How well can signs and symptoms predict AMI in the Malaysian population? 1593 3

Recognizing similarities and differences in symptom experiences of acute myocardial infarction (AMI) between men and women has implications for both health care providers and the general public. Rapid accurate diagnosis is necessary to implement timely lifesaving treatment. The purpose of this article is to critically review and evaluate studies that have compared symptoms of AMI between men and women. Research to date has demonstrated that during AMI, women are more likely than men to report shortness of breath, nausea, vomiting, back pain, jaw pain, neck pain, cough, and fatigue, but less likely than men to report chest pain and sweating. However, the findings were inconsistent across studies. These inconsistent findings could be attributable to methodological issues such as collecting data from medical records, small sample sizes, and controversial eligibility criteria for studies. More studies are needed to confirm gender differences in symptom experiences of AMI.
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PMID:Gender differences in symptoms associated with acute myocardial infarction: a review of the research. 1602 43

The case is presented of a 66 year old woman who attended the emergency department with severe abdominal pain subsequent to a bout of coughing, following a week's history of productive cough. She was known to have chronic obstructive pulmonary disease and was also on warfarin for recurrent deep vein thromboses. She had no history of ischaemic heart disease. She was found to have a rectus sheath haematoma and an international normalised ratio of 7.7, and admission was arranged for coagulation control and analgesia. However, a routine electrocardiograph (ECG) demonstrated an ST elevation pattern consistent with an acute inferior infarction. Subsequent ECGs showed no ST elevation, although the axis and chest lead QRS morphology remained the same throughout the first 12 hours. Over the next three days, R wave progression decreased in the chest leads. Troponin I at admission and 24 hours later were both <0.2 ng/ml. ECG changes compatible with acute myocardial infarction have been reported in association with a number of non-cardiac presentations; however, to our knowledge, it has never been reported in relation to a rectus sheath haematoma. We speculated on the possible mechanism of such "pseudo myocardial infarction" and the importance of treating the patient, not the ECG.
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PMID:Pseudo myocardial infarction. 1685 85

A 52-year-old man who was admitted for cardiogenic shock after acute myocardial infarction developed severe left ventricular dysfunction despite reperfusion therapy with coronary stents. After the 40th hospital day, he started to have cough and pulmonary infiltrates. Antimicrobial therapies and subsequent prednisolone for bronchiolitis obliterans organizing pneumonia were ineffective. Bronchoscopic examination revealed diffuse pulmonary bleeding and exudation of hemosiderin-containing macrophages in bronchial lavage fluid. Pulmonary capillary bleeding has been reported in the terminal stage of patients with mitral stenosis in the pre-cardiac surgery era. This complication reemerges in patients with severe heart failure receiving intensive anti-coagulation therapy after implanting a sirolimus-eluting coronary stent.
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PMID:Pulmonary capillary bleeding in a patient with severe left ventricular failure after acute myocardial infarction under anti-thrombotic therapy. 1754 Dec 23

The purposes of this study were to examine the effects of angiotensin-converting enzyme inhibitors (ACEI) or angiotensin receptor blockers (ARB) on myocardial flow reserve in patients with acute myocardial infarction (AMI) in the subacute phase using oxygen-15 positron emission tomography (PET) and to elucidate the relationship between the myocardial flow reserve and remodeling in the chronic phase. Sixty patients who had been treated with coronary angioplasty within 12 h after the onset of AMI were enrolled. Patients were divided into an enalapril (ACEI) group and a candesartan (ARB) group. The myocardial flow reserve was measured by oxygen-15 water PET in the subacute phase from the 20th to the 30th day after the onset of AMI. Left ventriculography was performed to measure the left ventricular ejection fraction in the chronic phase about 6 months after the onset. Ten patients (33%) in the enalapril group and 4 patients (13%) in the candesartan group stopped taking their respective medications within a few days of starting, because of side effects such as cough or hypotension. Thus, the prevalence of medication intolerance was higher in the enalapril group. The myocardial flow reserve in the subacute phase and the left ventricular ejection fraction in the chronic phase were lower in the enalapril group (2.08 +/- 0.30 and 42 +/- 6%) than in the candesartan group (2.25 +/- 0.20 and 49 +/- 5%) (p < 0.05). The myocardial flow reserve significantly correlated with the left ventricular ejection fraction in all patients (r = 0.45, p < 0.01). The myocardial flow reserve assessed by PET in the subacute phase after AMI was found to be related to left ventricular remodeling in the chronic phase.
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PMID:Relationship between myocardial flow reserve by oxygen-15 water positron emission tomography in the subacute phase of myocardial infarction and left ventricular remodeling in the chronic phase. 1895 92

Stress cardiomyopathy is described as acute myocardial infarction provoked by a stressful event with evidence of a significant focal wall motion but with little or no significant coronary artery disease. In this case report, a particularly bad bout of coughing resulted in chest pressure, troponin release, and evidence of antero-apical dyskinesis despite angiographic normal coronary arteries. The patient made a full recovery of function after an uncomplicated hospital stay.
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PMID:Coughing-induced stress cardiomyopathy. 2018 25

A 90-year-old Chinese man was transferred to the Emergency Department of the Affiliated Shantou Hospital of Sun Yat-sen University for treatment of an acute myocardial infarction. He suffered chest pain with three days of cough, dyspnea and fever. A diagnosis of Takotsubo cardiomyopathy was made in normal coronary arteries from urgent coronary angiography and characteristic apical dyskinesis and basal hyper contractility in left ventriculography. The patient died from severe multi-organ failure on the second day of hospitalization.
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PMID:Takotsubo cardiomyopathy in a 90-year-old Chinese man. 2249 Jun 6

Paradoxical coronary artery embolism is a rare but under-diagnosed cause of acute myocardial infarction (AMI) and requires a high level of clinical suspicion to make an early diagnosis. We describe the case of a young woman who presented with a severe cough and chest pain who was subsequently found to have a paradoxical embolus in the right coronary artery. Echocardiography showed a patent foramen ovale (PFO) and an atrial septal aneurysm (ASA). The patient was found to be a heterozygous carrier of the factor V Leiden mutation that increases the risk for venous-thromboembolism. The association between a PFO and an ASA is a risk factor for systemic embolisation. This is the first reported case of paradoxical coronary artery embolus causing AMI in a non-pregnant patient with factor Leiden thrombophilia. Identification of this clinical phenotype is vital as the risk of future embolic events can be reduced by anticoagulation and closure of anatomical cardiac defects.
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PMID:Paradoxical coronary artery embolism causing acute myocardial infarction in a young woman with factor V Leiden thrombophillia. 2295 15

Cardiovascular and noncardiovascular conditions are commonly encountered in the emergency department. While the majority of patients have underlying cardiovascular aetiologies, such as acute myocardial infarction, congestive heart failure, aortic dissection and pulmonary embolism, a small subset of patients have underlying noncardiovascular conditions, although they present with similar symptoms of chest pain, dyspnoea, cough, haemoptysis and haematemesis. This article aims to describe the imaging findings in common noncardiovascular conditions of the chest that are frequently encountered in the emergency department, with a review of the existing literature.
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PMID:Imaging in noncardiovascular thoracic emergencies: a pictorial review. 2666 4

Left ventricular pseudoaneurysm is a rare complication of acute myocardial infarction, associated with high mortality. However, it can present in a non-specific manner, complicating and delaying the diagnosis. The authors present the case of a 65-year-old patient, hypertensive, with no other known relevant medical history, who presented with chest pain, cough and left pleural effusion, initially attributed to a pulmonary process. However, these were in fact the result of a left ventricular pseudoaneurysm following silent acute myocardial infarction. The diagnosis was suspected on echocardiography and confirmed by cardiac magnetic resonance imaging, and the patient underwent successful surgical pseudoaneurysm repair. This case illustrates an atypical presentation of a left ventricular pseudoaneurysm, in which the manifestations resulted from pericardial and pleural extension of the inflammatory process associated with contained myocardial rupture. The case demonstrates the need for a high index of suspicion, and the value of imaging techniques to confirm it, in order to proceed with appropriate surgical treatment, and thus modify the course of the disease.
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PMID:Left ventricular pseudoaneurysm - a challenging diagnosis. 2717 37


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