A Healthy Heartbeat
The heart is a beating muscle that pumps oxygen and nutrient rich blood throughout the body. Each beat is stimulated by electrical signals that pass through the heart muscle, or myocardium.
Performing an ECG or EKG
In order to examine the function of the heart, a doctor may perform a test called an electrocardiogram or [...]
Tags: ECG, electrocardiography, heart's electrical signals, stress test
Multislice CT is just as accurate as MRI in assessing myocardial infarct size in an emergency setting, according to a recent study conducted by researchers in France and the U.S. The latest data validate previous findings suggesting delayed-enhancement myocardial CT correlates well with measures of infarction size done with cardiac MR.
Infarct size is one of [...]
Tags: angiography, coronary angioplasty, MCI, MRI, MSCT, Myocardial infarction, reperfusion
Heart attacks and congestive heart failure remain among the Nation’s most prominent health challenges despite many breakthroughs in cardiovascular medicine. In fact, despite successful approaches to prevent or limit cardiovascular disease, the restoration of function to the damaged heart remains a formidable challenge. Recent research is providing early evidence that adult and embryonic stem cells [...]
Tags: cardiomyocytes, congestive heart failure, heart attacks, heart muscles, Myocardial infarction, stem cell
In cases of chronic congestive heart failure, QT-interval dispersion is a strong predictor of death. Carvedilol therapy appears to decrease QT-interval dispersion. We investigated whether carvedilol reduces QT-interval dispersion in congestive heart failure and whether this pharmaceutical agent has additional effects on elderly patients.
Congestive heart failure (CHF) is increasingly common and entails a high mortality [...]
Tags: Arrhythmia, carvedilol, congestive, elderly patients, electrocardiography, heart failure, QT-interval dispersion
In the past decade, the single most common cause of the withdrawal or restriction of the use of drugs that have already been marketed has been the prolongation of the QT interval associated with polymorphic ventricular tachycardia, or torsade de pointes (Figure 1), which can be fatal.1 Nine structurally unrelated drugs that were marketed in [...]
Tags: amiodarone, and many antidepressants and antiretroviral agents, Cardiac arrhythmias, clarithromycin, erythromycin, itraconazole, ketoconazole, long QT syndrome, quinidine
Abstract We report a young girl with classic Bartter disease (type III) with severe hypokalemia (2.0 mmol/l) who developed a prolonged heart rate-corrected QT interval of 510 ms (upper reference 430 ms) and ST segment depression in all leads. Holter electrocardiography was performed (with a plasma potassium level of 2.0 mmol/l) and it disclosed a stable sinus rhythm, a [...]
Tags: Cardiac arrhythmias, Classic Bartter disease, Holter monitoring, Hypokalemia, QT interval
Providing new standards in ease-of-use, flexibility and continuity, the FloTrac system is the next major advance in hemodynamic management
When used with the Vigileo monitor, FloTrac sensor provides continuous cardiac output (CCO), stroke volume (SV), stroke volume variation (SVV), and systemic vascular resistance (SVR)* through an existing arterial line.
Easy to use, accurate and less invasive
Connects to [...]
Chest Pain Overview
If you are having severe pain, crushing, squeezing, or pressure in your chest that lasts more than a few minutes, or if the pain moves into your neck, left shoulder, arm, or jaw, go immediately to a hospital emergency department. Do not drive yourself. Call 911 for emergency transport.Chest pain is one of [...]
Tags: angina, Chest pain, heart attack, nitrogliserin
ALPERT AND THYGESEN, ET AL., MYOCARDIAL INFARCTION REDEFINED
JACC Vol. 36, No. 3, September 2000:959–69
Bibliography
Pathology
1. [...]
Tags: biochemistry, electrocardiography, pathology
The Killip classification system is used in individuals with an acute myocardial infarction (heart attack), in order to risk stratify them. Individuals with a low Killip class are less likely to die within the first 30 days after their myocardial infarction than individuals with a high Killip class.
Class
Description
I
Includes individuals with no clinical signs of heart [...]
Tags: AMI, Killip, MCI, Myocardial infarction