• 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
Real-time phase-contrast flow MRI of the ascending aorta and
Real-time phase-contrast flow MRI of the ascending aorta and

... velocity-encoded phase-contrast flow MRI6–8 allows for a noninvasive quantification of blood flow in all major heart vessels.9,10 So far, however, a fundamental limitation of current cine MRI techniques is their dependency on the electrocardiogram (ECG), either for triggering or retrospective sorting o ...
Tumours of the Heart
Tumours of the Heart

... of secondary tumours {1116}. However, these data may have a high referral bias and may not reflect population-based incidence rates {2079}. At the Mayo Clinic, the autopsy incidence of primary cardiac tumours from 1915 to 1931 was 0.05%, but more than tripled to 0.17% between 1954 and 1970 {2165}; a ...
THE DEVELOPMENT OF AN INTRODUCTORY E-LEARNING MODULE ON ECHOCARDIOGRAPHY
THE DEVELOPMENT OF AN INTRODUCTORY E-LEARNING MODULE ON ECHOCARDIOGRAPHY

... total number of deaths due to CVD so far this year is 71,557 deaths (last updated October 25, 2011), which comprises 45.7% of all deaths caused by chronic disease this year (Total = 156,578) [2]. Moreover, CVD is also the main cause of hospitalization in Canada (excluding pregnancy and childbirth) m ...
PowerPoint Presentation: An Overview of Ventricular Assist
PowerPoint Presentation: An Overview of Ventricular Assist

... of the heart’s ventricles to augment or replace native ventricular function  Can be used for the left (L VAD), right (R VAD), or both ventricles (Bi VAD)  Are powered by external power sources that connect to the implanted pump via a percutaneous lead (driveline) that exits the body on the right a ...
ECG Guide - Banner Health
ECG Guide - Banner Health

... The assessment of the regularity of the rhythm - Is the rhythm regular or is it irregular? To assess the regularity, you will need to place the legs of your calipers on two consecutive R waves. This is your “R to R” or “R-R” interval. Without moving the width of the calipers, march through the rhyth ...
Heart rate variability during simulated hemorrhage with lower body
Heart rate variability during simulated hemorrhage with lower body

... hypovolemia in trauma patients, and have the sensitivity to provide early identification of a patient that has a low tolerance to this physiological insult. New vital signs are needed which can detect the onset, progression, and severity of hypovolemia in individual patients. The measurement of the v ...
A case with pyopericardium and cardiac tamponade
A case with pyopericardium and cardiac tamponade

... migrated into the pericardial cavity. In both of these cases, gradual erosion of the atrial or ventricular wall caused by the distal tip of the VA shunt was one of the main sources of the cardiac tamponade. However, to our knowledge, there are no previously published reports about VP shunt migrating ...
eur hj ci 2015 16 233 lang badano
eur hj ci 2015 16 233 lang badano

... The goal of this document is to provide an update to the previously published guidelines, as well as recommendations and reference values, while eliminating the minor discrepancies that existed between previous guidelines. The normal values in this update include 3DE and myocardial deformation, when ...
Rhythm
Rhythm

... – Diltiazem, 0.25 mg/kg slow IV over 2 min, may repeat in 15 mins at 0.35 mg/kg slow IV – Metoprolol, 5 mg slow IV over 2-5 mins, may repeat in 5 min – Amiodarone, 150 mg IV infusion over 10 mins ...
Aneurysms of the Sinuses of Valsalva
Aneurysms of the Sinuses of Valsalva

... of a large SVA and the gradual progression of a small perforation. Acute, large rupture may present with dramatic onset of marked substernal chest pain, upper abdominal pain or severe dyspnea with sudden hemodynamic collapse. Symptoms often follow physical stress, with acute dyspnea and chest pain d ...
Soy - UC Davis Department of Nutrition
Soy - UC Davis Department of Nutrition

Robertson, Taylor, Final Thesis.
Robertson, Taylor, Final Thesis.

... et al., 2013), cardiac adaptation during postpartum has not been thoroughly investigated. Moreover, current postpartum studies (Gonzalez et al., 2007; Umar et al., 2012; Iorga, Dewey, Partow-Navid, Gomes, & Eghbali, 2012) did not indicate whether lactation took place postpartum. Postpartum cardiomyo ...
Diagnosis and Management of Common Types of
Diagnosis and Management of Common Types of

... node tissue above the bundle of His. The condition is caused by reentry phenomena or automaticity at or above the atrioventricular node, and includes atrioventricular nodal reentrant tachycardia, atrioventricular reciprocating tachycardia, and atrial tachycardia. Most persons with these tachyarrhyth ...
Targeted Neonatal Echocardiography in the Neonatal Intensive
Targeted Neonatal Echocardiography in the Neonatal Intensive

... of premature birth, further development occurs under very different and often adverse circumstances. With delivery, there is an abrupt increase in systemic afterload, with removal of the low-resistance placenta and via peripheral vasoconstriction in response to the labor-induced endogenous hormone r ...
Module I E.C.G. RHYTHM INTERPRETATION
Module I E.C.G. RHYTHM INTERPRETATION

... body can 1: generate electrical impulses (automaticity) and 2: conduct electrical impulses (conductivity). The cardiac muscle tissue is similar to other tissue in its ability to contract (contractility). Specialized tissue located in the right atria known as the sinoatria node (SA) is the primary pa ...
Gallop Rhythm of the Heart
Gallop Rhythm of the Heart

... left side of the heart in essential hypertension and aortic stenosis, and on the right side in pulmonary hypertension of varied etiology and in pulmonic stenosis. When atrial gallop is present in essential hypertension, there is invariably evidence of left ventricular hypertrophy, either from physic ...
Saccular Aneurysm of the Proximal Left Common Carotid Artery
Saccular Aneurysm of the Proximal Left Common Carotid Artery

... aneurysms most often involve the mid segment of the cervical internal carotid artery, and trauma has been reported to be the most common cause of such aneurysms [12]. The few saccular aneurysms reported to arise from the common carotid artery have been classified as secondary to atherosclerosis [13] ...
ACE - Bpac
ACE - Bpac

... This is because ACE inhibitors appear to have beneficial effects in these conditions which are independent of lowered blood pressure. For people without the conditions outlined above the decision is more difficult. Current best practice continues to involve tailoring treatments for individuals. Many ...
AACN Essentials of Critical-Care Nursing Pocket Handbook
AACN Essentials of Critical-Care Nursing Pocket Handbook

... of Critical Care Nursing, and includes items that clinicians are most likely to need at their fingertips: • Critical care drug tables (common vasoactive drugs, neuromuscular blocking agents, antiarrhythmics, IV medication guidelines) • Normal values table for laboratory tests and physiologic paramete ...
ESC Guidelines on Diabetes, Pre-diabetes and Cardiovascular
ESC Guidelines on Diabetes, Pre-diabetes and Cardiovascular

The Effect of PEEP on Cardiac Output
The Effect of PEEP on Cardiac Output

... (PEEP) is well established as an integral part ofthe management of patients with the adult respiratory distress syndrome. While PEEP improves pulmonary gas exchange in the majority of patients, it may also decrease cardiac output.’5 As a result, oxygen transport (cardiac output x arterial oxygen con ...
The Effect of PEEP on Cardiac Output
The Effect of PEEP on Cardiac Output

... (PEEP) is well established as an integral part ofthe management of patients with the adult respiratory distress syndrome. While PEEP improves pulmonary gas exchange in the majority of patients, it may also decrease cardiac output.’5 As a result, oxygen transport (cardiac output x arterial oxygen con ...
Blood Pressure
Blood Pressure

... right heart pumping blood to the lungs and back to the left heart. The left heart then pumps blood through the rest of the body and back to the right heart. Blood leaving the left heart enters systemic arteries, shown here as an expandable, elastic region. Pressure produced by contraction of the lef ...
The Effect of PEEP on Cardiac Output
The Effect of PEEP on Cardiac Output

... (PEEP) is well established as an integral part ofthe management of patients with the adult respiratory distress syndrome. While PEEP improves pulmonary gas exchange in the majority of patients, it may also decrease cardiac output.’5 As a result, oxygen transport (cardiac output x arterial oxygen con ...
6 Heart Sounds
6 Heart Sounds

... Because the M1 component corresponds to the mitral valve closure and is produced by sudden deceleration and dissipation of energy of the moving column of blood in the left ventricle, its intensity will depend on the energy imparted to that column of blood by the contracting ventricle. The level of e ...
< 1 ... 23 24 25 26 27 28 29 30 31 ... 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