• 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
BNP Levels Predict Outcome in Pediatric Heart Failure Patients Post
BNP Levels Predict Outcome in Pediatric Heart Failure Patients Post

... failure (HF) has not been well demonstrated. This study was designed to determine whether BNP levels predict outcomes in patients with moderate symptomatic HF. Methods and Results—We investigated whether enrollment BNP levels for the Pediatric Carvedilol Trial were associated with baseline character ...
Review Article Safety Profile of Nonsteroidal Antiflammatory Drugs
Review Article Safety Profile of Nonsteroidal Antiflammatory Drugs

PDF - SAS Publishers
PDF - SAS Publishers

... very important for its association with various congenital & other valvular heart diseases. Patent foramen ovale is one of the common forms of atrial septal defect rarely observed in the elderly people. With this background we are reporting a case of persistent patent foramen ovale in an elderly fem ...
faq - Allens Training
faq - Allens Training

... pulseless ventricular tachycardia (in a witnessed and monitored arrest) but only if a defibrillator is not immediately available. What is the role of feeling for a pulse? The assessment of a pulse is also controversial. This issue has previously been discussed in detail. It is reasonable for practit ...
S. Lee Crystal, Andrew D. Krahn, Yaariv Khaykin, Douglas Cameron
S. Lee Crystal, Andrew D. Krahn, Yaariv Khaykin, Douglas Cameron

... therapies, and inappropriate shocks were determined as rates per 100 person-years of follow-up with censoring at death. We used regression methods described by Harrell,12 in which potentially clinically important predictors of outcome with P<0.25 were considered for entry into a Fine and Gray compet ...
Abnormal Echocardiogram
Abnormal Echocardiogram

1 introduction - Jyväskylän yliopisto
1 introduction - Jyväskylän yliopisto

... activities. Rightly balanced and enjoyable physical activity may have a vital part in improving adolescents’ health, well-being and educational attainment (Kantomaa ...
Print - Circulation
Print - Circulation

... Muscle cells exhibited nuclei and myofibrils with Z, I, and A bands. The muscle cells also had dense ovoid structures with the size and distribution of mitochondria. T tubules and cistemae of sarcoplasmic reticulum could not be identified readily. In many sections the myocytes had fine holes or vacu ...
Atrial fibrillation and flutter: Management issues
Atrial fibrillation and flutter: Management issues

Optical mapping of activation patterns in an animal - AJP
Optical mapping of activation patterns in an animal - AJP

... autoimmune diseases. It is now well established that CHB detected before or at birth, in the absence of structural cardiac abnormalities, is strongly associated with maternal antibodies to SSA/Ro and/or SSB/La ribonucleoproteins (6). Though more prevalent in the presence of autoimmune disorders, CHB ...
Progressive Muscle Metaboreflex Activation Gradually Decreases 1
Progressive Muscle Metaboreflex Activation Gradually Decreases 1

... previously described (40). Briefly, the beat-to-beat time series of LVSP and HR ...
Introducing a novel mechanism to control heart rate in the ancestral
Introducing a novel mechanism to control heart rate in the ancestral

... depressed heart rate seen in prolonged anoxia to almost double its normal normoxic heart rate, an almost fourfold overall change during the 1-h recovery from anoxia. The present study sought mechanistic explanations for these regulatory changes in heart rate. We provide evidence for a bicarbonate-ac ...
Full Text  - Res Cardiovasc Med
Full Text - Res Cardiovasc Med

... tool for the measurement of left ventricular ejection fraction (EF) and volumes, which are of great importance in the management and follow-up of patients with coronary artery diseases. However, considering the technical shortcomings of SPECT in the presence of perfusion defect, the accuracy of this ...
Neural Control of Heart Rate: a Comparison between
Neural Control of Heart Rate: a Comparison between

... The heart rate responses to stimulation of the right and left cardiac autonomic nerves were evaluated in 20 puppies and 17 adult dogs. In every puppy and adult dog, the changes in heart rate were much greater with right- than with left-sided stimulation of the vagal or sympathetic nerves. At maximal ...
Evaluation of the Right Ventricular Function in Hypertrophic
Evaluation of the Right Ventricular Function in Hypertrophic

... of TDI compared to strain and SR derived from TDI in the evaluation of RV function. The IVPT represents a systolic function, the IVRT represents a diastolic function and the Tei index is more complex. We found no significant difference for strain and SR in measured parameters. Despite the above ment ...
ICD 10 and Nephrology
ICD 10 and Nephrology

... – A rise in the creatinine level can result from medications (eg, cimetidine, trimethoprim) that inhibit the kidney’s tubular secretion, or an increase in creatinine production such as seen in Rhabdomyolysis. (muscle breakdown) – True Anuria is most commonly the result of an obstructed foley cathete ...
In Vitro Tools for Quantifying Structure– Function Relationships in
In Vitro Tools for Quantifying Structure– Function Relationships in

... generation in a non-monotonic fashion, with 7:1 aspect ratios generating more peak systolic stress than either lower or higher aspect ratios (Kuo et al. 2012). Thus, the in vivo aspect ratio of myocytes in the healthy heart (7:1) is likely important for maximizing the contractile output of the heart ...
Association between left ventricular hypertrophy
Association between left ventricular hypertrophy

... of the retina in the untreated hypertensive patients and left ventricular wall thickness on echocardiography was reported.(48) This study was in contrast with the results of our study, which showed no significant relationship between LVH and retinopathy, although it did indicate that the retinopathy ...
Cardiac Motion Analysis to Improve Pacing Site Selection in CRT1
Cardiac Motion Analysis to Improve Pacing Site Selection in CRT1

... The epicardial surface in the first time phase of the heart beat (diastolic phase in our MRI data) is used as the template. For any other epicardial surface in the same sequence, we align it to the template by rotating its parameter net (26) so that the surface distances D(v1, vi), (i ⫽ 2, . . ., 17 ...
Fluoroless cryo-ablation of para
Fluoroless cryo-ablation of para

... with the aid of intracardiac electrograms and the 3D electro-anatomic mapping system. The procedural duration of accessory pathway ablation with the aid of the 3D electro-anatomic mapping system seems to be less than when fluoroscopy alone is used (177.06 ± 62.189 vs 242.45 ± 99.07 minutes) (8). In ...
Left ventricular function: time-varying elastance and left
Left ventricular function: time-varying elastance and left

... To remove and control the influence of changes in preload and afterload, several groups of investigators studied isolated perfused hearts with loading conditions controlled using servo systems. Starling’s very early work demonstrated that increasing end-diastolic pressure and volume increased stroke ...
Chest Radiology Plain Film and CT
Chest Radiology Plain Film and CT

... – Rapid clearance with theraphy – Occasionally a clinical lag in onset and clearance ...
Chapter 40: Management and Resuscitation of the Critical Patient
Chapter 40: Management and Resuscitation of the Critical Patient

... • Stimulation normally occurs when the systolic pressure is between 60–80 mm Hg. − Drop in pressure causes baroreceptor stimulation to decrease. − Sympathetic nervous system is stimulated. − The renin-angiotensin-aldosterone system is activated and antidiuretic hormone is released. ...
Right ventricular function
Right ventricular function

... that encircle the normal left and right ventricle. Furthermore, in some forms of congenital heart disease the deeper layers or the right and left ventricle may be contiguous within the interventricular septum (28). The function of the two ventricles is therefore inextricably linked, in both the stru ...
normal ECG manual - Cardiac and Stroke Networks in Lancashire
normal ECG manual - Cardiac and Stroke Networks in Lancashire

... From the Unipolar limb leads, a system was devised by EINTHOVEN which allows the heart to be seen from 3 other leads known as the Bipolar Limb Leads of Einthoven’s Triangle. ...
< 1 ... 71 72 73 74 75 76 77 78 79 ... 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