Review Article Ventricular Tachycardia in the Absence of Structural
... Intrafascicular tachycardia has a right bundle branch block (RBBB) left-axis configuration in 90% to 95% of cases (exit site, left posterior fascicle) and the rest have RBBB with a right-axis pattern (exit site, left anterior fascicle). This form of VT is seen in the second to fourth decade of life ...
... Intrafascicular tachycardia has a right bundle branch block (RBBB) left-axis configuration in 90% to 95% of cases (exit site, left posterior fascicle) and the rest have RBBB with a right-axis pattern (exit site, left anterior fascicle). This form of VT is seen in the second to fourth decade of life ...
Quantification of left ventricular regional functions using ECG
... probability group), 19 heart disease patients who were examined by MPS and equilibrium radionuclide angiography (ERNA) (ERG; ERNA group), and 24 patients who were examined by MPS and 2-dimensional echocardiography (2DE) (2DEG; 2DE group). The values of the ejection fraction (EF) and peak ejection ra ...
... probability group), 19 heart disease patients who were examined by MPS and equilibrium radionuclide angiography (ERNA) (ERG; ERNA group), and 24 patients who were examined by MPS and 2-dimensional echocardiography (2DE) (2DEG; 2DE group). The values of the ejection fraction (EF) and peak ejection ra ...
Right ventricular ejection fraction response to exercise in
... light pen on rest and peak exercise left anterior oblique enddiastolic frames just lateral to the descending aorta. The minimal number of counts sampled in the region of interest was 1,800 in this study. Differences in acquisition times between rest and exercise images were corrected by dividing the ...
... light pen on rest and peak exercise left anterior oblique enddiastolic frames just lateral to the descending aorta. The minimal number of counts sampled in the region of interest was 1,800 in this study. Differences in acquisition times between rest and exercise images were corrected by dividing the ...
Chapter_009
... Separates ventricles from their arterial outflow tracts, pulmonary artery & Aorta Situated at ventricle exits to outflow tracks (arterial trunks) ...
... Separates ventricles from their arterial outflow tracts, pulmonary artery & Aorta Situated at ventricle exits to outflow tracks (arterial trunks) ...
SSc: A Vascular Disease
... Evidence is based on other controlled trials or other RTCs with minor flaws Evidence is based on non-randomized, case-control, or other observational studies Evidence is based on consensus of carefully selected panel of experts. There are no published studies that meet the criteria for inclusion in ...
... Evidence is based on other controlled trials or other RTCs with minor flaws Evidence is based on non-randomized, case-control, or other observational studies Evidence is based on consensus of carefully selected panel of experts. There are no published studies that meet the criteria for inclusion in ...
The Relationship Between Congestive Heart Failure, Sleep Apnea
... dwelling elderly, those with more severe sleep apnea, defined as an AHI ⬎ 30, had significantly shorter survival (7.9 years) compared to those with AHI ⬍ 15 (9.4 years). Multiple regression analysis that included age, gender, BMI, and history of pulmonary or cardiovascular disease, however, resulted ...
... dwelling elderly, those with more severe sleep apnea, defined as an AHI ⬎ 30, had significantly shorter survival (7.9 years) compared to those with AHI ⬍ 15 (9.4 years). Multiple regression analysis that included age, gender, BMI, and history of pulmonary or cardiovascular disease, however, resulted ...
Cardio-Ankle Vascular Index in Heterozygous Familial
... atherosclerosis is the measurement of large artery stiffness. A very useful method for arterial stiffness evaluation is arterial pulse-wave velocity (PWV) measurement 7, 8). PWV enables to detect arteriosclerosis in any part of the body and brachial-ankle PWV has been widely used to detect early sta ...
... atherosclerosis is the measurement of large artery stiffness. A very useful method for arterial stiffness evaluation is arterial pulse-wave velocity (PWV) measurement 7, 8). PWV enables to detect arteriosclerosis in any part of the body and brachial-ankle PWV has been widely used to detect early sta ...
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... Specific causes of SCD in young athletes are more likely to have genetic determinants than similar conditions in older persons. These include inherited cardiac arrhythmias, hypertrophic cardiomyopathy, abnormalities of the coronary arteries, undetected congenital heart defects and early coronary art ...
... Specific causes of SCD in young athletes are more likely to have genetic determinants than similar conditions in older persons. These include inherited cardiac arrhythmias, hypertrophic cardiomyopathy, abnormalities of the coronary arteries, undetected congenital heart defects and early coronary art ...
Magnesium crucial for overall health
... In addition, a high-fat diet can steal needed magnesium. When magnesium combines with fat, it forms a salt which the body cannot absorb. In my practice, I not only recommend that my patients take a magnesium supplement, but that they take a high lipase pancreatic enzyme to prevent such loss. Heavy l ...
... In addition, a high-fat diet can steal needed magnesium. When magnesium combines with fat, it forms a salt which the body cannot absorb. In my practice, I not only recommend that my patients take a magnesium supplement, but that they take a high lipase pancreatic enzyme to prevent such loss. Heavy l ...
Cardiac Cycle - Just In Time Medicine
... Each cardiac cycle (heart beat) consists of ventricular diastole (relaxation), followed by ventricular systole (contraction). Atrial systole (atrial contraction) occurs during ventricular diastole. Atrial contraction is initiated by atrial depolarization, which is indicated by the P wave in the ECG. ...
... Each cardiac cycle (heart beat) consists of ventricular diastole (relaxation), followed by ventricular systole (contraction). Atrial systole (atrial contraction) occurs during ventricular diastole. Atrial contraction is initiated by atrial depolarization, which is indicated by the P wave in the ECG. ...
Untitled
... achieved. These algorithms require information about the cardiac motion, i.e., typically the simultaneously recorded electrocardiogram 共ECG兲, to synchronize the reconstruction with the cardiac motion. Neither data acquired without ECG information 共standard patients兲 nor acquisitions with corrupted E ...
... achieved. These algorithms require information about the cardiac motion, i.e., typically the simultaneously recorded electrocardiogram 共ECG兲, to synchronize the reconstruction with the cardiac motion. Neither data acquired without ECG information 共standard patients兲 nor acquisitions with corrupted E ...
Peer-Reviewed Case Report - UKnowledge
... ultimately requiring heart transplantation. As the rate of heart failure continues to increase and surpass the number of available donor hearts, the need for cardiac assist devices is rapidly rising. The total artificial heart has emerged as an effective therapeutic option in patients with end-stage ...
... ultimately requiring heart transplantation. As the rate of heart failure continues to increase and surpass the number of available donor hearts, the need for cardiac assist devices is rapidly rising. The total artificial heart has emerged as an effective therapeutic option in patients with end-stage ...
Total Artificial Heart Imaging and Complications: a
... ultimately requiring heart transplantation. As the rate of heart failure continues to increase and surpass the number of available donor hearts, the need for cardiac assist devices is rapidly rising. The total artificial heart has emerged as an effective therapeutic option in patients with end-stage ...
... ultimately requiring heart transplantation. As the rate of heart failure continues to increase and surpass the number of available donor hearts, the need for cardiac assist devices is rapidly rising. The total artificial heart has emerged as an effective therapeutic option in patients with end-stage ...
Left Ventricular Diastolic Dysfunction and Obesity: A Systematic
... of the included researches used traditional Doppler to measure E/A ratio because it is an important marker of ventricular diastolic function, while the other parameters such as DT, IVRT were not measured in all the included studies. As a highly sensitive and specific echocardiographic technique, TDI ...
... of the included researches used traditional Doppler to measure E/A ratio because it is an important marker of ventricular diastolic function, while the other parameters such as DT, IVRT were not measured in all the included studies. As a highly sensitive and specific echocardiographic technique, TDI ...
T The Basics of Neonatal EKG Interpretation C
... adult (Figure 1). The EKG of the full-term neonate is slightly large square contains 25 small squares (Figure 2). different from that of the premature infant (Table 1). EKG paper measures two elements: time and voltage.’ In Changes occur in the normal EKG during the first minutes, routine EKG interp ...
... adult (Figure 1). The EKG of the full-term neonate is slightly large square contains 25 small squares (Figure 2). different from that of the premature infant (Table 1). EKG paper measures two elements: time and voltage.’ In Changes occur in the normal EKG during the first minutes, routine EKG interp ...
cpr + aed programme - Singapore General Hospital
... In Singapore, heart disease is the second commonest cause of death, being responsible for about 24% of total mortality. About 2,400 persons develop an acute heart attack in Singapore. In addition, nearly 1000 people suffer from sudden cardiac arrest in the out-of-hospital environment and another few ...
... In Singapore, heart disease is the second commonest cause of death, being responsible for about 24% of total mortality. About 2,400 persons develop an acute heart attack in Singapore. In addition, nearly 1000 people suffer from sudden cardiac arrest in the out-of-hospital environment and another few ...
Assessments
... • Sensitive indicator of hydration status • Should be 0.5ml/kg/hr • Due to high demand for blood supply to the kidneys, urine output is a useful indicator of cardiovascular status. • Generally is a poorly recorded observation. • Monitoring of fluid balance should be appropriate depending on patient ...
... • Sensitive indicator of hydration status • Should be 0.5ml/kg/hr • Due to high demand for blood supply to the kidneys, urine output is a useful indicator of cardiovascular status. • Generally is a poorly recorded observation. • Monitoring of fluid balance should be appropriate depending on patient ...
Maintaining Cardiovascular Health in Patients With Mixed
... Data from the Framingham Heart Study show a direct relationship between the risk of developing coronary heart disease (CHD) and total serum cholesterol levels. Epidemiologic studies have also established specific lipid parameters as important risk factors for CHD. For example, in the Prospective Car ...
... Data from the Framingham Heart Study show a direct relationship between the risk of developing coronary heart disease (CHD) and total serum cholesterol levels. Epidemiologic studies have also established specific lipid parameters as important risk factors for CHD. For example, in the Prospective Car ...
Prenatal Diagnosis of Tetralogy of Fallot with Pulmonary Atresia
... Pulmonary regurgitation caused by transannular repairs is generally tolerable long after the operation. However, there are a certain percentage of patients who will eventually be hemodynamically compromised. Longstanding pulmonary regurgitation can result in right ventricular failure, progressive ri ...
... Pulmonary regurgitation caused by transannular repairs is generally tolerable long after the operation. However, there are a certain percentage of patients who will eventually be hemodynamically compromised. Longstanding pulmonary regurgitation can result in right ventricular failure, progressive ri ...
Cardio-vascular Physiology 3
... • The inferior leads (leads II, III and aVF) show the electrical activity from the inferior region (wall) of the heart - the apex of the left ventricle. • The lateral leads (I, aVL, V5 and V6) look at the electrical activity from the lateral wall of the heart. • The anterior leads, V1 through V6, an ...
... • The inferior leads (leads II, III and aVF) show the electrical activity from the inferior region (wall) of the heart - the apex of the left ventricle. • The lateral leads (I, aVL, V5 and V6) look at the electrical activity from the lateral wall of the heart. • The anterior leads, V1 through V6, an ...
the Right Atrium, Right Ventricle, and Left
... Peak systolic pressure was used in the formula of Sarnoff and associates13 for calculation of the tension-time index. All pressures, dp/dt, carotid tracings, and electrocardiograms were simultaneously recorded in the eight-channel Dr-8 oscilloscopic photographic recorder* at a paper speed of 200 mm/ ...
... Peak systolic pressure was used in the formula of Sarnoff and associates13 for calculation of the tension-time index. All pressures, dp/dt, carotid tracings, and electrocardiograms were simultaneously recorded in the eight-channel Dr-8 oscilloscopic photographic recorder* at a paper speed of 200 mm/ ...
9 DETECTION OF LEFT-TO-RIGHT INTRACARDIAC SHUNTS
... The technique of the oximetry run is based on the pioneering studies of Dexter and his associates in 1947 (1) . They found that multiple samples drawn from the right atrium could vary in oxygen content by as much as 2 volumes percent (vol%).* This variability has been attributed to the fact that the ...
... The technique of the oximetry run is based on the pioneering studies of Dexter and his associates in 1947 (1) . They found that multiple samples drawn from the right atrium could vary in oxygen content by as much as 2 volumes percent (vol%).* This variability has been attributed to the fact that the ...
Relation Between Right Ventricular Function and Increased Right
... ventricle and how it relates to other measures of right ventricular (RV) function. This study was designed to measure glucose metabolism in the right ventricle, as estimated by [18F]fluorodeoxyglucose (FDG) positron emission tomography imaging and to determine the relation between RV function and FD ...
... ventricle and how it relates to other measures of right ventricular (RV) function. This study was designed to measure glucose metabolism in the right ventricle, as estimated by [18F]fluorodeoxyglucose (FDG) positron emission tomography imaging and to determine the relation between RV function and FD ...
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.