• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Adverse events in coronary artery bypass graft (CABG) - Heart
Adverse events in coronary artery bypass graft (CABG) - Heart

... In-hospital adverse events Table 2 displays the incidences of in-hospital AEs. MI, both all MIs and non-fatal MIs, was the most prevalent AE in the overall CABG population and across all stratified categories. Because of the various diagnostic criteria used to define MI, the incidence of MI differs ...
Cardiovascular Disease Prevention and Rehabilitation 2012
Cardiovascular Disease Prevention and Rehabilitation 2012

... cardiology practice. Together with improvements in public health, these advances have contributed to considerably lower mortality rates following acute coronary syndromes. As a consequence, the influence that cardiac rehabilitation post myocardial infarction or revascularisation may have on mortalit ...
Junctional Ectopic Tachycardia after Congenital Heart Surgery
Junctional Ectopic Tachycardia after Congenital Heart Surgery

... with JET in the per- and postoperative setting. During weaning from, and sometimes after, CPB, inotropes such as dobutamine and epinephrine can be necessary to increase the contractility of the heart. An important side-effect of these medications however is their positive chronotropic and arrhythmog ...
full articles - pdf - People`s Journal Of Scientific Research
full articles - pdf - People`s Journal Of Scientific Research

... diverticulum of the ventricle are the most commonly encountered heart lesions (Amato et al, 1995; Leca et al, 1989). The severity and the complexity of the intracardiac defect contribute largely to the poor prognosis associated with this malformation(Amato et al, 1995). It has been also observed tha ...
anatomical record - Deep Blue
anatomical record - Deep Blue

... tricular musculature. In 1904, this observatlon was contlrmed by Retzer, who saw the bundle i n cat, rabbit and rat, as well as in dog and man. He found the course varying slightly, but always connected with auricular muscle and merging into the ventricular at a short but variable distance from the ...
Effects of Methadone on QT-Interval Dispersion
Effects of Methadone on QT-Interval Dispersion

... knowledge, the effect of methadone or any other opioid on QT dispersion has not been reported. Both QT dispersion and QTc are increased in a variety of disease states, such as myocardial ischemia,10, 11 hypertrophic cardiomyopathy,12–14 chronic heart failure,15, 16 and anorexia nervosa.17 The increa ...
Increased alveolar/capillary membrane resistance
Increased alveolar/capillary membrane resistance

... exchange in patients with chronic heart failure. In a similar vein, the presence of increased ventilation/perfusion mismatch would cause a reduction in the effective surface area available for physiological gas exchange, leaving the proportion of total pulmonary diffusive resistance due to the alveo ...
UNIVERSITY OF NEBRASKA MEDICAL CENTER Cardiology
UNIVERSITY OF NEBRASKA MEDICAL CENTER Cardiology

... service. All patients are to be worked up by one of the house staff. These patients can be either general ward, telemetry or AICU patients. It is expected that the H&P be dictated so that it is in the Phamis system. Discharge: All discharges are to be done in a timely fashion. Discharge summaries ar ...
The Right Ventricular Function After Left Ventricular Assist Device
The Right Ventricular Function After Left Ventricular Assist Device

... The implantable left ventricular assist device (LVAD) is now a standard option as bridge-to-transplant (BTT) for patients with heart failure (HF) deteriorating while awaiting heart transplantation.1,2 Due to (i) donor organ shortage, (ii) increasing number of patients who are older or have comorbidi ...
Tachycardia-induced cardiomyopathy in children and
Tachycardia-induced cardiomyopathy in children and

... junctional reciprocating tachycardia (PJRT) or Coumel tachycardia. Electrophysiological mapping identified the insertion of the accessory pathway in the right posteroseptal region of the tricuspid annulus near the coronary sinus ostium (Figure 1B). A second transcatheter radiofrequency (RF) energy p ...
Diastolic Dysfunction
Diastolic Dysfunction

... The bottom portion of the instantaneous pressurevolume loop (Fig. 2B, arrows) is sometimes used to quantify passive ventricular properties (8,24), but it is important to note that this is distinctly different from the true EDPVR. In particular, at high filling pressures such as may exist in the hear ...
NON-INVASIVE DETERMINATION OF THE
NON-INVASIVE DETERMINATION OF THE

... Physiological basis of the HRDP Physiological mechanisms behind the heart rate deflection point phenomena have still not been fully explained. However, myocardial functions, the influence of catecholamines and neural systems, as well as of potassium levels have been suggested as possibilities. Myoca ...
Changes in Adenosine Nucleotides in the Heart
Changes in Adenosine Nucleotides in the Heart

... balance between ATP synthesis and its utilisation. This balance is disturbed after death, ATP utilisation becomes more than its production and ATP level decreases. When ATP decreases below a critical level, actin and myosin combine irreversibly (2,3). An electric shock to a living body results in de ...
Control Mechanisms in Circulatory Function
Control Mechanisms in Circulatory Function

... returns blood pressure toward the normal level. If the fall in mean arterial pressure is very large, increased sympathetic neural activity to veins is added to the above responses, causing contraction of the venous smooth muscle and reducing venous compliance. Decreased venous compliance shifts bloo ...
β2-Adrenoceptors Antiarrhythmic Effects in Wild Type Mice Fed a
β2-Adrenoceptors Antiarrhythmic Effects in Wild Type Mice Fed a

n–3 Fatty Acids in Cardiovascular Disease
n–3 Fatty Acids in Cardiovascular Disease

... required for slow-onset and long-acting direct antiinflammatory, antiatherogenic effects, modulating the expression of endothelial proinflammatory, proatherogenic genes (genomic effects).21,22 The incorporation of fatty acids appears to alter the properties of lipid rafts and caveolae, contributing ...
Fatty acid transporter levels and palmitate
Fatty acid transporter levels and palmitate

... Following uptake, fatty acids can either enter the mitochondrial β-oxidation pathway for production of ATP or be incorporated into intramyocardial lipids as substrate reserves or for phospholipid synthesis [16]. Measurement of both of these pathways is necessary to estimate total palmitate utilisati ...
Visualization of the Fibrous Structure of the Heart
Visualization of the Fibrous Structure of the Heart

... traced using using numerical integration techniques such as firstorder Euler and second-order Runge-Kutta methods. Tracing stops when a stopping criterium such as a lower bound for an anisotropy index (e.g. cl or FA) is met. The resulting streamlines represent the fibers. We use the method presented ...
Ventricular Septal Defect X-ray Findings
Ventricular Septal Defect X-ray Findings

... Neonates usually asymptomatic because of high pulmonary vascular resistance from birth to 6 weeks Common cause of CHF in infancy Bacterial endocarditis may develop Severe pulmonary hypertension Eisenmenger’s physiology/cyanosis ...
The Anatomical Substrates of Wolff-Parkinson-White
The Anatomical Substrates of Wolff-Parkinson-White

... the underlying pathology. Indeed at present there is still a dispute regarding the precise anatomy that underlies the abnormal ventricular activation pattern found in this syndrome. Paladino' and Kent2 had described myocardial fibers ...
Omega-3 Fatty Acid Supplementation for the Prevention of Arrhythmias
Omega-3 Fatty Acid Supplementation for the Prevention of Arrhythmias

... In the Physicians’ Health Study [9], 20,551 US male physicians were administered a baseline questionnaire regarding fish consumption. Dietary fish intake was associated with lower sudden death and total mortality. The threshold for the effect was at one fish meal per week. There was a 52% lower risk ...
Polymorphous Ventricular Tachycardia
Polymorphous Ventricular Tachycardia

... Data for this study were collected from patients admitted to the cardiac care units (CCUs) of Moffitt-Long Hospital, University of California Medical Center (UCSF) (eight patients) and the Los Angeles County-University of Southern California Medical Center (USC) (two patients) with acute MI and the ...
Entropies of short binary sequences in heart period dynamics Abstract
Entropies of short binary sequences in heart period dynamics Abstract

... In recent years linear measures of heart rate variability (HRV) have been applied in a wide range of contexts, leading to a well established diagnostic tool with more or less accepted standards (16;17;30). Today HRV is not only applied in cardiac diseases but in diseases that generally affect the au ...
The AHA Guidelines Including Pediatric Resuscitation
The AHA Guidelines Including Pediatric Resuscitation

... He is on no medicine and has no allergies. He has had a “cold” with a fever and a cough for several days. He is cyanotic and has bilateral rales greater on the right than on the left, with intercostal retractions. His weight is 35 kg. Vital signs are pulse rate 160, respiratory rate 52, temperature ...
Autonomic Nervous System Regulation
Autonomic Nervous System Regulation

... obtaining information on the astronauts’ blood pressures in the microgravity environment. They used more sophisticated instruments to continuously measure blood pressure and heart rate. Blood pressure is generally obtained by using a sphygmomanometer and a stethoscope. Heart rate can be obtained by ...
< 1 ... 87 88 89 90 91 92 93 94 95 ... 562 >

Myocardial infarction



Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report