Archive for the ‘cardiology’ Category

STAR-Heart Study: Stem Cells Associated With Improved Long-Term Hemodynamics and Reduced Mortality in Chronic Heart Failure

August 29, 2010 (Stockholm, Sweden) — The largest clinical trial so far of intracoronary autologous stem-cell transplantation in patients with chronic heart failure has shown that such treatment was associated with multiple hemodynamic and functional benefits as well as a reduction in mortality, benefits that were maintained out to five years of follow-up. The STAR-heart [...]

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What Is an ECG?

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 [...]

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MSCT matches cardiac MRI for emergency myocardial infarction assessment

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 [...]

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Can Stem Cells Repair a Damaged Heart?

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 [...]

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Effects of Carvedilol Therapy on QT-Interval Dispersion in Congestive Heart Failure

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 [...]

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Drug-Induced Prolongation of the QT Interval

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 [...]

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Cardiac arrhythmias due to severe hypokalemia in a patient with classic Bartter disease

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 [...]

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Flotrac Sensor for Cardiac Output Monitoring

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 [...]

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Chest Pain

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 [...]

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Myocardial Infarction Redefined—A Consensus Document of The Joint European Society of Cardiology/American College of Cardiology Committee for the Redefinition of Myocardial Infarction

ALPERT AND THYGESEN, ET AL., MYOCARDIAL INFARCTION REDEFINED JACC Vol. 36, No. 3, September 2000:959–69 Bibliography Pathology 1. Bardales RH, Hailey LS, Xie SS, Schaefer RF, Hsu S-U. In situ apoptosis assay for the detection of early acute myocardial infarction. Am J Pathol 1996;149:821—9. 2. Buja LM. Modulation of the myocardial response to injury. Lab [...]

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