Questions Remaining About the Surgical Correction of Tetralogy of
... known as the Blalock-Taussig shunt: anastomosis of the subclavian artery to the pulmonary artery. In 1946, Potts5 introduced anastomosis between the descending aorta and the left pulmonary artery and in 1962 Waterston6 performed anastomosis of the ascending aorta to the right pulmonary artery. Modif ...
... known as the Blalock-Taussig shunt: anastomosis of the subclavian artery to the pulmonary artery. In 1946, Potts5 introduced anastomosis between the descending aorta and the left pulmonary artery and in 1962 Waterston6 performed anastomosis of the ascending aorta to the right pulmonary artery. Modif ...
syncope: diagnosis and treatment – marc kraus
... The definition of neurally mediated syncope (NMS) is: The development of arterial vasodilatation in the setting of relative or absolute bradycardia. Usually, bradycardia is expected with cardiogenic syncope. However, vasodepressor syncope (ie carotid-sinus hypersensitivity) is defined as a pure vaso ...
... The definition of neurally mediated syncope (NMS) is: The development of arterial vasodilatation in the setting of relative or absolute bradycardia. Usually, bradycardia is expected with cardiogenic syncope. However, vasodepressor syncope (ie carotid-sinus hypersensitivity) is defined as a pure vaso ...
Echocardiographic Assessment of Valve Stenosis
... elliptical systolic orifice. Diastolic images may mimic a tricuspid valve when a raphe is present. Long-axis views may show an asymmetric closure line, systolic doming, or diastolic prolapse of the cusps but these findings are less specific than a short-axis systolic image. In children and adolescents, ...
... elliptical systolic orifice. Diastolic images may mimic a tricuspid valve when a raphe is present. Long-axis views may show an asymmetric closure line, systolic doming, or diastolic prolapse of the cusps but these findings are less specific than a short-axis systolic image. In children and adolescents, ...
Scintigraphic imaging of neuroadrenergic
... emerged from the few studies that have been conducted are often discordant, in part due to the different experimental models used [5-9]. A greater understanding of the mechanisms underlying the uptake of this tracer is essential since a number of controversial issues recently emerged, especially in ...
... emerged from the few studies that have been conducted are often discordant, in part due to the different experimental models used [5-9]. A greater understanding of the mechanisms underlying the uptake of this tracer is essential since a number of controversial issues recently emerged, especially in ...
Subcellular Calcium Content in Cardiomyopathic Hamster Hearts In
... To date, there have been no direct measurements of cellular or subcellular Ca2+ concentration in myo hamster hearts in situ. Some investigators have measured the total Ca2+ content of ventricular homogenates from myo hearts by atomic absorption spectrophotometry (AA) and found it to be markedly elev ...
... To date, there have been no direct measurements of cellular or subcellular Ca2+ concentration in myo hamster hearts in situ. Some investigators have measured the total Ca2+ content of ventricular homogenates from myo hearts by atomic absorption spectrophotometry (AA) and found it to be markedly elev ...
The role of altered fatty acid metabolism in cardiomyopathy and
... The heart pumps blood to supply oxygen and nutrients to the tissues in our body. The importance of the heart was first recognized in the 4 th century BC, by the Greek philosopher Aristotle from his observation in chick embryos that the heart was formed first before the rest of the internal organs. H ...
... The heart pumps blood to supply oxygen and nutrients to the tissues in our body. The importance of the heart was first recognized in the 4 th century BC, by the Greek philosopher Aristotle from his observation in chick embryos that the heart was formed first before the rest of the internal organs. H ...
Transcatheter Aortic Valve Replacement for Aortic
... valve. Aortic stenosis can be congenital or acquired. The most common cause of aortic stenosis in the elderly is aortic sclerosis, a degenerative disease characterized by fibrosis and calcification of the aortic valve. In patients who are less than 70 years of age, the most common cause of aortic st ...
... valve. Aortic stenosis can be congenital or acquired. The most common cause of aortic stenosis in the elderly is aortic sclerosis, a degenerative disease characterized by fibrosis and calcification of the aortic valve. In patients who are less than 70 years of age, the most common cause of aortic st ...
Pericardial Cyst : A Rare Cause of Pericardial Effusion
... pleura, led to pleural effusion. Inflammatory process resulted in progression of both the pericardial and pleural effusions, and the enlarging inflammed cyst producing her symptoms. There were two reported cases of pericardial cyst presented with pericardial effusion complicated with cardiac tampona ...
... pleura, led to pleural effusion. Inflammatory process resulted in progression of both the pericardial and pleural effusions, and the enlarging inflammed cyst producing her symptoms. There were two reported cases of pericardial cyst presented with pericardial effusion complicated with cardiac tampona ...
a biphasic role for the voltage
... I’d also like to thank the members of my thesis committee, Al George, Charles Hong, Doug Mortlock, and the chair, Scott Baldwin. Their interest in my research and career are reflected heavily in my thesis. Leaving each committee meeting inspired and enthusiastic about my project was always encour ...
... I’d also like to thank the members of my thesis committee, Al George, Charles Hong, Doug Mortlock, and the chair, Scott Baldwin. Their interest in my research and career are reflected heavily in my thesis. Leaving each committee meeting inspired and enthusiastic about my project was always encour ...
TNF- and myocardial depression in endotoxemic rats
... influences of protein synthesis inhibition or immunosuppression on TNF-a production and myocardial depression, and 3) the influence of neutralization of TNF-a on myocardial depression. Rats were treated with lipopolysaccharide (LPS, 0.5 mg/kg ip). Circulating and myocardial TNF-a increased at 1 and ...
... influences of protein synthesis inhibition or immunosuppression on TNF-a production and myocardial depression, and 3) the influence of neutralization of TNF-a on myocardial depression. Rats were treated with lipopolysaccharide (LPS, 0.5 mg/kg ip). Circulating and myocardial TNF-a increased at 1 and ...
Pulmonary Hypertension
... ground-glass opacities and a mosaic perfusion pattern consistent with chronic pulmonary edema. Essential in the evaluation of these patients is an echocardiogram, which readily allows the assessment of LV systolic function. It has been emphasized that the differentiation between systolic and diastol ...
... ground-glass opacities and a mosaic perfusion pattern consistent with chronic pulmonary edema. Essential in the evaluation of these patients is an echocardiogram, which readily allows the assessment of LV systolic function. It has been emphasized that the differentiation between systolic and diastol ...
Dissection of Sheep`s Pluck
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
5 Precordial Pulsations
... individual papillary muscle groups. It is possible that the asymmetrical attachment of the mitral apparatus to the left ventricle may result in an asymmetrical pull on the papillary muscles with a stronger pull on the antero-lateral papillary muscle group and the underlying left ventricular myocardi ...
... individual papillary muscle groups. It is possible that the asymmetrical attachment of the mitral apparatus to the left ventricle may result in an asymmetrical pull on the papillary muscles with a stronger pull on the antero-lateral papillary muscle group and the underlying left ventricular myocardi ...
Glasgow 12-lead ECG Analysis Program
... Patient age and gender are also input to the Glasgow program. If not entered, the default is a 50 year old male. Entry of patient age and gender are strongly encouraged for maximizing the accuracy of diagnostic statements, especially for acute ST elevation myocardial infarction. The Glasgow program ...
... Patient age and gender are also input to the Glasgow program. If not entered, the default is a 50 year old male. Entry of patient age and gender are strongly encouraged for maximizing the accuracy of diagnostic statements, especially for acute ST elevation myocardial infarction. The Glasgow program ...
as a PDF
... the greatest extent (dP/dtmin, P ¼ ns). Right ventricular septal pacing conserved function better than other pacing interventions (P ¼ ns) and elicited an intrinsic electrical activation sequence. Conclusion In intact, synchronous hearts, acute biventricular pacing resulted in systolic dysfunction a ...
... the greatest extent (dP/dtmin, P ¼ ns). Right ventricular septal pacing conserved function better than other pacing interventions (P ¼ ns) and elicited an intrinsic electrical activation sequence. Conclusion In intact, synchronous hearts, acute biventricular pacing resulted in systolic dysfunction a ...
Single-site ventricular and biventricular pacing
... the greatest extent (dP/dtmin, P ¼ ns). Right ventricular septal pacing conserved function better than other pacing interventions (P ¼ ns) and elicited an intrinsic electrical activation sequence. Conclusion In intact, synchronous hearts, acute biventricular pacing resulted in systolic dysfunction a ...
... the greatest extent (dP/dtmin, P ¼ ns). Right ventricular septal pacing conserved function better than other pacing interventions (P ¼ ns) and elicited an intrinsic electrical activation sequence. Conclusion In intact, synchronous hearts, acute biventricular pacing resulted in systolic dysfunction a ...
The Development of the Heart and Vascular System of Lepidosiren
... greatly in different specimens: in some the trabeculse are numerous and compactly arranged, projecting considerably into the auricle, and there may be sheets of fine conuective tissue between them, while in the others the trabeculse are fewer and widely sepai'ate without any intervening connective t ...
... greatly in different specimens: in some the trabeculse are numerous and compactly arranged, projecting considerably into the auricle, and there may be sheets of fine conuective tissue between them, while in the others the trabeculse are fewer and widely sepai'ate without any intervening connective t ...
images/Long term effects of RV pacing.pps
... The findings of the PAVE study suggest that, in order to avoid the adverse effects of cardiac dyssynchrony generated by RV pacing, a biventricular pacing should be considered for patients who require AV node ablation for management of atrial fibrillation and who have a left ventricular ejection frac ...
... The findings of the PAVE study suggest that, in order to avoid the adverse effects of cardiac dyssynchrony generated by RV pacing, a biventricular pacing should be considered for patients who require AV node ablation for management of atrial fibrillation and who have a left ventricular ejection frac ...
Molecular distinction between physiological and pathological
... physiological adaptation to chronic training. Though, with attention from media reports of sudden death in young athletes, it has been questioned whether highly trained athletes develop pathological conditions. Notably, there is currently no evidence in the healthy population (excluding persons with ...
... physiological adaptation to chronic training. Though, with attention from media reports of sudden death in young athletes, it has been questioned whether highly trained athletes develop pathological conditions. Notably, there is currently no evidence in the healthy population (excluding persons with ...
The pulmonary hemodynamics and exercise in
... Abnormalities in ventilatory mechanics during exercise are thought to be the most important contributor to the impaired exercise capacity in the majority of the patients. (6) In many patients the airflow limitation causes ventilation to reach its maximum before the cardiovascular limit is reached, w ...
... Abnormalities in ventilatory mechanics during exercise are thought to be the most important contributor to the impaired exercise capacity in the majority of the patients. (6) In many patients the airflow limitation causes ventilation to reach its maximum before the cardiovascular limit is reached, w ...
Myofiber prestretch magnitude determines regional systolic function
... May 10, 2013; doi:10.1152/ajpheart.00186.2012.—Electrical dyssynchrony leads to prestretch in late-activated regions and alters the sequence of mechanical contraction, although prestretch and its mechanisms are not well defined in the failing heart. We hypothesized that in heart failure, fiber prest ...
... May 10, 2013; doi:10.1152/ajpheart.00186.2012.—Electrical dyssynchrony leads to prestretch in late-activated regions and alters the sequence of mechanical contraction, although prestretch and its mechanisms are not well defined in the failing heart. We hypothesized that in heart failure, fiber prest ...
COCATS 2
... statement emanating from the Core Cardiology Training Symposium (COCATS) held at Heart House, Bethesda, Maryland, June 27 to 28, 1994 (1). Since publication of the proceedings of that consensus conference in the Journal of the American College of Cardiology, the term “COCATS” has been used when refe ...
... statement emanating from the Core Cardiology Training Symposium (COCATS) held at Heart House, Bethesda, Maryland, June 27 to 28, 1994 (1). Since publication of the proceedings of that consensus conference in the Journal of the American College of Cardiology, the term “COCATS” has been used when refe ...
Xanthine Derivatives in the Heart: Blessed or Cursed?
... Department of Physiology, University of Debrecen, Medical and Health Science Center, Debrecen, H-4012, Hungary Abstract: Methylxanthines, such as theophylline, have been used to treat cardiorespiratory disorders, whereas caffeine is the most widely consumed psychoactive agent in various soft drinks. ...
... Department of Physiology, University of Debrecen, Medical and Health Science Center, Debrecen, H-4012, Hungary Abstract: Methylxanthines, such as theophylline, have been used to treat cardiorespiratory disorders, whereas caffeine is the most widely consumed psychoactive agent in various soft drinks. ...
Materials and Methods - Frontiers in Bioscience
... Following 3 weeks of carnitine supplementation, serum FC increased (from 44.4+/-3.5 to 94.1+/-10.1 micromol/L, p value less than 0.001 and from 25.3+/-1.7 to 69.4+/-5.9 micromol/L, p value less than 0.001) in control and uraemic groups respectively. There was a smaller increase in control (from 51.7 ...
... Following 3 weeks of carnitine supplementation, serum FC increased (from 44.4+/-3.5 to 94.1+/-10.1 micromol/L, p value less than 0.001 and from 25.3+/-1.7 to 69.4+/-5.9 micromol/L, p value less than 0.001) in control and uraemic groups respectively. There was a smaller increase in control (from 51.7 ...
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.