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American Society of Echocardiography Recommendations for
American Society of Echocardiography Recommendations for

... effects are angina, hypotension, and cardiac arrhythmias. Severe, symptomatic hypotension necessitating test termination occurs only rarely. Frequent premature atrial or ventricular contractions occur in about 10% of patients and supraventricular or ventricular tachycardias each occur in about 4% of ...
giant left atrial myxoma presenting with heart failure
giant left atrial myxoma presenting with heart failure

... axis deviation and ST-T wave changes. These were due to the right ventricular overload and eventual failure. Common etiologies of heart failure in this age group include hypertension, valvular heart disease and cardiomyopathies. However, the patient’s echocardiographic study did not suggest any of t ...
Advances in Arrhythmia and Electrophysiology
Advances in Arrhythmia and Electrophysiology

... and was called into question.17 Multiple regional repolarization gradients (apical-basal, right-to-left ventricle) have been discovered and their relative contributions along with the transmural gradient to the normal T-wave morphology remain the subject of an ongoing debate.17,18 Similar to the the ...
ABSTRACT:
ABSTRACT:

... the diagnosis is made by visualization of the intimal flap on a diagnostic imaging test. The common tests used to diagnose an aortic dissection include a CT scan of the chest with iodinated contrast material and an aortogram or magnetic resonance angiogram (MRA) of the aorta. Trans-oesophageal echoc ...
Early mortality in implantable cardioverter defibrillator
Early mortality in implantable cardioverter defibrillator

... no information on the QRS width is available in this study which might help to estimate how many patients would have been candidates for biventricular pacing. This could have reduced heart failure-related death, even in the presence of a relatively high rate of non-responders. How about AF? There is ...
Total Anomalous Pulmonary Venous Connection in Children
Total Anomalous Pulmonary Venous Connection in Children

... days in non-obstructive forms, also later than in similar studies due to the lack of a territorial network of pediatric cardiology services.3,8,17,18 Early postoperative complications included: pulmonary hypertension crisis in 60% of cases, which had improved after inhaling nitric oxide, supraventri ...
Unusual cause ofpraecordial pansystolic murmur
Unusual cause ofpraecordial pansystolic murmur

... ing toward the left axilla. The murmur remained unchanged with respiration. The liver was palpable two fingerbreadths below the right costal margin; the spleen was not enlarged. The electrocardiogram, consistent with ventricular pre-excitation, showed a tachycardia of 200/min with a PR interval of o ...
Supplements Bitter Orange (Synephrine)
Supplements Bitter Orange (Synephrine)

... Military Performance: Taking a single 900 mg dose of bitter orange standardized to 6% synephrine (54 mg) seems to increase diastolic and systolic blood pressure and heart rate for up to five hours in young, healthy adults and can cause headaches.3 Military Survivability: People should avoid taking b ...
Heart Disease - John Appleton
Heart Disease - John Appleton

... talking about—you can’t live without it. The statistics certainly aren’t going to help your outlook, either. You may have heard that cardiovascular disease (CVD) is the number one killer of both men and women in the US. According to the most recent data available from the Centers for Disease Control ...
Magnesium crucial for overall health
Magnesium crucial for overall health

... One of the most common heart valve disorders, ideopathic mitral valve prolapse, which affects about five percent of the population may, in many instances, be caused by magnesium deficiency. Symptoms that usually accompany this condition are fatigue, panic attacks, palpitations, chest pain and hyperv ...
ACLS Medications and Their Use - Wake Forest Baptist Medical
ACLS Medications and Their Use - Wake Forest Baptist Medical

...  Up to 0.2mg/kg may be considered (eg. Beta blocker/Calcium Channel Blocker overdose) but not recommended and may be harmful ...
Acute myocardial infarction complicated by cardiogenic shock: an
Acute myocardial infarction complicated by cardiogenic shock: an

... mortality prior to the establishment of an algorithm-based program in July 2010. We hypothesized that an algorithm based ECMO program improves the outcome of patients with acute myocardial infarction complicated with cardiogenic shock. Methods: Between March 2003 and July 2013, 29 patients underwent ...
ECG tutorial
ECG tutorial

... Now   we   come   to   the   main   feature   of   ECGSIM.   Doubleclick   in   the   heart   pane   to   reset   to   frontal   view,  display  the  depolarization  times,  and  select  a  node  at  the  front  of  the  heart  (figur ...
Comparision between Chest X Ray, Electrocardiogram and
Comparision between Chest X Ray, Electrocardiogram and

... have limited use as a screening method. However, in a resourcepoor countries where Echo facilities are not available improved ECG criteria such as total QRS voltage can be recommended as a routine investigation for LVH because of its cost-effectiveness and easy availability despite certain limitatio ...
High-resolution reconstruction of the beating zebrafish heart
High-resolution reconstruction of the beating zebrafish heart

... available. The distribution of individual blood cells is irregular in subsequent heartbeats, in contrast to the periodically moving myocardial and endocardial cells; our synchronization thus failed to reconstruct the flow of fluorescent blood cells (Tg(gata1a: DsRed)) (Fig. 4c and Supplementary Vide ...
Use of frog ventricle to examine mechanical and electrical activity of
Use of frog ventricle to examine mechanical and electrical activity of

... increase in contractility (11). In the teaching of cardiac physiology, Starling’s law and contractility are often considered separate phenomena. Indeed, until the 1970s the consensus among cardiac physiologists was that myocardial fiber length (Starling’s law) and inotropic state (contractility) wer ...
Electroanatomical Mapping Systems and Cardiac Arrhythmias
Electroanatomical Mapping Systems and Cardiac Arrhythmias

... atrioventricular nodal reentrant tachycardias (AVNRT). Although the standard 12-lead ECG maintains high diagnostic value, an invasive electrophysiological study with catheter ablation are often required. Unfortunately these procedures are burdened by the use of radiations. Materials and methods: We ...
Influence of a Nonionic, Iso-Osmolar Contrast Medium
Influence of a Nonionic, Iso-Osmolar Contrast Medium

... Methods and Results—In a randomized, parallel-group, double-blind study, 1411 patients received either iodixanol (a nonionic, iso-osmolar contrast medium) or ioxaglate (an ionic, low-osmolar contrast medium) during PTCA. A standardized anticoagulation regimen was followed. Patients were monitored in ...
Low pressure giant pulmonary artery aneurysms in the adult: natural
Low pressure giant pulmonary artery aneurysms in the adult: natural

... advocated based on previous reports of dissection or rupture. Pulmonary artery aneurysms, even when very large, in the presence of low pulmonary pressures and the absence of left to right congenital or acquired shunts, may not pose such a risk in sharp contrast with those with pulmonary hypertension ...
Left Ventricular Filling Pressure Assessment Using Left Atrial Transit
Left Ventricular Filling Pressure Assessment Using Left Atrial Transit

... obtained from all participants. Participants were recruited prospectively and divided into invasive and noninvasive groups. Whereas all subjects underwent cardiac MR (CMR) and blood testing for biomarkers, those in the noninvasive arm also had an echocardiogram. The detailed recruitment scheme is il ...
没有幻灯片标题
没有幻灯片标题

... hyperthyroidism, beriberi, anemia, and arteriovenous shunts. ...
Evidence that blood pressure controls heart rate in
Evidence that blood pressure controls heart rate in

... drug, since functional sympathomimetic receptors are thought not to exist in the chick heart at 3 days of development. Following treatment with propranolol to decrease heart rate, a significant concomitant decrease in ventricular blood pressure was not observed. This is perhaps due to two observatio ...
More on the right ventricle in pulmonary hypertension Robert Naeije and Stefano Ghio
More on the right ventricle in pulmonary hypertension Robert Naeije and Stefano Ghio

... with a stable or increased RVEF at 3–6 months had a trend to better overall survival and a significantly lower cardiovascular mortality. These results are in keeping with recently demonstrated prognostic relevance of baseline and follow-up RVEF, but measured by magnetic resonance imaging (MRI) in PA ...
Randomized, Double-Blind Placebo-Controlled Trial of
Randomized, Double-Blind Placebo-Controlled Trial of

... of treatment was also comparable in the two groups. The proportions of patients with previous myocardial infarction and angina pectoris were not signi~cantly different between the two groups. However, there were signi~cantly more current smokers and subjects taking nifedipine and fewer exsmokers in ...
Cardiac transplantation is still the method of choice in the treatment
Cardiac transplantation is still the method of choice in the treatment

... survival in patients with heart failure was worse than in patients with most cancers. One-year survival with heart failure was less than 60%, and 4-year survival was about 35%, thus heart failure was dubbed “more malignant then cancer”. During the last 20 years, a significant progress in the treatme ...
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Coronary artery disease



Coronary artery disease (CAD), also known as ischemic heart disease (IHD), atherosclerotic heart disease, atherosclerotic cardiovascular disease, and coronary heart disease, is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. It is within the group of cardiovascular diseases of which it is the most common type. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional stress, last less than a few minutes, and gets better with rest. Shortness of breath may also occur and sometimes no symptoms are present. The first sign is occasionally a heart attack. Other complications include heart failure or an irregular heartbeat.Risk factors include: high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol, among others. Other risks include depression. The underlying mechanism involves atherosclerosis of the arteries of the heart. A number of tests may help with diagnoses including: electrocardiogram, cardiac stress testing, coronary computed tomographic angiography, and coronary angiogram, among others.Prevention is by eating a healthy diet, regular exercise, maintaining a healthy weight and not smoking. Sometimes medication for diabetes, high cholesterol, or high blood pressure are also used. There is limited evidence for screening people who are at low risk and do not have symptoms. Treatment involves the same measures as prevention. Additional medications such as antiplatelets including aspirin, beta blockers, or nitroglycerin may be recommended. Procedures such as percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) may be used in severe disease. In those with stable CAD it is unclear if PCI or CABG in addition to the other treatments improve life expectancy or decreases heart attack risk.In 2013 CAD was the most common cause of death globally, resulting in 8.14 million deaths (16.8%) up from 5.74 million deaths (12%) in 1990. The risk of death from CAD for a given age has decreased between 1980 and 2010 especially in the developed world. The number of cases of CAD for a given age has also decreased between 1990 and 2010. In the United States in 2010 about 20% of those over 65 had CAD, while it was present in 7% of those 45 to 64, and 1.3% of those 18 to 45. Rates are higher among men than women of a given age.
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