Pathophysiology and current therapy of congestive heart failure
... beta,-receptors may be little affected. These latter changes reduce the responsiveness of the myocardium to catecholamines, but the marked increase in plasma catecholamines in congestive heart failure is still sufficient to produce important sympathetic support of the circulation. Some studies in di ...
... beta,-receptors may be little affected. These latter changes reduce the responsiveness of the myocardium to catecholamines, but the marked increase in plasma catecholamines in congestive heart failure is still sufficient to produce important sympathetic support of the circulation. Some studies in di ...
Experimental aspectsof cobalt cardiomyopathy - Heart
... 10-35 per cent of rats receiving the lowprotein diet and treated with cobalt. The mitral valve was affected predominantly (Fig. 5), but vegetations also occurred occasionally on the aortic and tricuspid valves and on the parietal endocardium. A non-necrotizing granulomatous inflammatory process deve ...
... 10-35 per cent of rats receiving the lowprotein diet and treated with cobalt. The mitral valve was affected predominantly (Fig. 5), but vegetations also occurred occasionally on the aortic and tricuspid valves and on the parietal endocardium. A non-necrotizing granulomatous inflammatory process deve ...
Swimming exercise reverses aging-related contractile abnormalities
... Background: The objective of this study was to examine the effect of swimming exercise on aging-related Ca2+ handling alterations and structural abnormalities of female rat heart. Methods: For this purpose, 4-month and 24-month old female rats were used and divided into three following groups: seden ...
... Background: The objective of this study was to examine the effect of swimming exercise on aging-related Ca2+ handling alterations and structural abnormalities of female rat heart. Methods: For this purpose, 4-month and 24-month old female rats were used and divided into three following groups: seden ...
Ratio of Peak Early to Late Diastolic Filling Velocity of the Left
... The National Institute of Neurological Disorders and Stroke has characterized cardioembolic stroke as an important clinical entity, since it is the most common cause of death in patients with acute ischemic stroke.1−3）Transesophageal echocardiography（TEE）has been established as an essential investig ...
... The National Institute of Neurological Disorders and Stroke has characterized cardioembolic stroke as an important clinical entity, since it is the most common cause of death in patients with acute ischemic stroke.1−3）Transesophageal echocardiography（TEE）has been established as an essential investig ...
Alteration in the global and regional strains of heart in patients with
... strain analysis allows discrimination between active and passive myocardial tissue movement. By tracking these speckles, strain can be calculated and reveals the dimensional changes (deformation) as a percentage.16 Shortening or contraction is reflected as a negative value and lengthening or relaxat ...
... strain analysis allows discrimination between active and passive myocardial tissue movement. By tracking these speckles, strain can be calculated and reveals the dimensional changes (deformation) as a percentage.16 Shortening or contraction is reflected as a negative value and lengthening or relaxat ...
special communication - Regulatory, Integrative and Comparative
... vary considerably. Cardiac index (CI) estimates (CO/kg body wt) ranging from 209 ⫾ 23 (26) up to 1,300 ⫾ 60 (27) were found. The diversity in the animal preparation, varying from open chest conditions up to measuring in a conscious restrained state, is most likely responsible for this. However, with ...
... vary considerably. Cardiac index (CI) estimates (CO/kg body wt) ranging from 209 ⫾ 23 (26) up to 1,300 ⫾ 60 (27) were found. The diversity in the animal preparation, varying from open chest conditions up to measuring in a conscious restrained state, is most likely responsible for this. However, with ...
Myocardial strain imaging: how useful is it in clinical
... with increasing deviation from the major axis, there will be progressive reduction in absolute strain. To avoid underestimation, it is important to minimize foreshortening when using apical views, and in the short axis one should try to obtain circular LV images. Due to poorer spatial resolution in ...
... with increasing deviation from the major axis, there will be progressive reduction in absolute strain. To avoid underestimation, it is important to minimize foreshortening when using apical views, and in the short axis one should try to obtain circular LV images. Due to poorer spatial resolution in ...
Obstructive sleep apnoea: longer respiratory event lengths in patients with heart failure
... The correlation between prolonged CD and TTPV as well as VL can be explained by the dynamic response to asphyxia in OSA patients [22] and the finding that CD results in hyperventilation [23]. The amplified response of peripheral chemoreceptors to a high carbon dioxide level causes hyperventilation. ...
... The correlation between prolonged CD and TTPV as well as VL can be explained by the dynamic response to asphyxia in OSA patients [22] and the finding that CD results in hyperventilation [23]. The amplified response of peripheral chemoreceptors to a high carbon dioxide level causes hyperventilation. ...
Brief Review - Hypertension
... by arterial pressure. Mitchell et al3,63 argue that “effective aortic diameter” measured indirectly using the water hammer equation is reduced in persons with isolated systolic hypertension. Such a view gains some support from Framingham data,24 which showed, after correction for age, that there is ...
... by arterial pressure. Mitchell et al3,63 argue that “effective aortic diameter” measured indirectly using the water hammer equation is reduced in persons with isolated systolic hypertension. Such a view gains some support from Framingham data,24 which showed, after correction for age, that there is ...
Cardiology - Stiftung KinderHerz
... TDI velocities especially important when assessing both systolic and diastolic RV function. Good correlations between systolic velocities and RVEF were found in an adult population that included patients with congenital heart disease [10]. Eyskens et al. [11] showed elevated RV systolic velocities i ...
... TDI velocities especially important when assessing both systolic and diastolic RV function. Good correlations between systolic velocities and RVEF were found in an adult population that included patients with congenital heart disease [10]. Eyskens et al. [11] showed elevated RV systolic velocities i ...
PDF Article - ScienceDirect
... and postnatal morphogenesis of the heart, the performance of cardiac surgery, new questions in cardiac imaging and certain electrophysiologic disturbances such as arrhythmo• genic right ventricular dysplasia and type B Wolff-Parkin• son-White syndrome, ...
... and postnatal morphogenesis of the heart, the performance of cardiac surgery, new questions in cardiac imaging and certain electrophysiologic disturbances such as arrhythmo• genic right ventricular dysplasia and type B Wolff-Parkin• son-White syndrome, ...
Stafford_Mitral Valve Proposal.pdf
... have been studied as of today. Areas for future research are pointed out in each area. ...
... have been studied as of today. Areas for future research are pointed out in each area. ...
cardiopulmonary services
... as aspirin, keep platelets from sticking to a damaged part of your artery. Beta-blockers: Beta-blockers help reduce the workload on your heart by decreasing the rate and and force of heart contractions, and reducing blood pressure. Blood pressure medicine: This medicine may be given to lower your bl ...
... as aspirin, keep platelets from sticking to a damaged part of your artery. Beta-blockers: Beta-blockers help reduce the workload on your heart by decreasing the rate and and force of heart contractions, and reducing blood pressure. Blood pressure medicine: This medicine may be given to lower your bl ...
Small rodent ventilator use in finding chronic measurement of
... vary considerably. Cardiac index (CI) estimates (CO/kg body wt) ranging from 209 ⫾ 23 (26) up to 1,300 ⫾ 60 (27) were found. The diversity in the animal preparation, varying from open chest conditions up to measuring in a conscious restrained state, is most likely responsible for this. However, with ...
... vary considerably. Cardiac index (CI) estimates (CO/kg body wt) ranging from 209 ⫾ 23 (26) up to 1,300 ⫾ 60 (27) were found. The diversity in the animal preparation, varying from open chest conditions up to measuring in a conscious restrained state, is most likely responsible for this. However, with ...
Principles of Multi-slice Cardiac CT Imaging
... artery and circumflex). Detection and quantification of coronary stenosis with the ability to differentiate a 20% change in the diameter of the vessel lumen for the larger-caliber vessels represents a viable goal for cardiac CT imaging. To achieve this, CT systems need to provide a spatial resolutio ...
... artery and circumflex). Detection and quantification of coronary stenosis with the ability to differentiate a 20% change in the diameter of the vessel lumen for the larger-caliber vessels represents a viable goal for cardiac CT imaging. To achieve this, CT systems need to provide a spatial resolutio ...
Innovating In A Conventional Market
... bling non-responder rate of nearly one in three patients, to specific smaller segments of the pacing population, EBR is extend the use of CRT devices more broadly into the heart specifically looking to serve heart failure patients, a large failure population eligible for reimbursement coverage, and ...
... bling non-responder rate of nearly one in three patients, to specific smaller segments of the pacing population, EBR is extend the use of CRT devices more broadly into the heart specifically looking to serve heart failure patients, a large failure population eligible for reimbursement coverage, and ...
Factors Associated With Increased Risk for Dementia in Individuals
... vascular dementia, and Alzheimer´s disease to analyse factors from models related to an increased risk of dementia among persons with CHF using SAS Proc Mixed multilevel modelling. The GEE model is conceptually equivalent to logistic regression, but controls for the clustering of twins within a pair ...
... vascular dementia, and Alzheimer´s disease to analyse factors from models related to an increased risk of dementia among persons with CHF using SAS Proc Mixed multilevel modelling. The GEE model is conceptually equivalent to logistic regression, but controls for the clustering of twins within a pair ...
Effect of adenosine on heart rate variability in
... uptake of adenosine, leading to its accumulation [2]. The effects of dipyridamole on frequency-domain indices of heart rate variability have been studied in both normal subjects and patients with ischaemia [17], but the effects of the purine itself on heart rate variability have not been reported. O ...
... uptake of adenosine, leading to its accumulation [2]. The effects of dipyridamole on frequency-domain indices of heart rate variability have been studied in both normal subjects and patients with ischaemia [17], but the effects of the purine itself on heart rate variability have not been reported. O ...
Multidimensional Analytical Study of Heart Sounds: A Review
... occurs during the isovolumetric contraction of the ventricles. Heart sound (S2) is related to the aorticpulmonary valve at the time of the isovolumetric relaxation of the ventricles. The third heart sound (S3) and fourth heart sound (S4) are very light sound, i.e., almost inaudible in nature. S3 and ...
... occurs during the isovolumetric contraction of the ventricles. Heart sound (S2) is related to the aorticpulmonary valve at the time of the isovolumetric relaxation of the ventricles. The third heart sound (S3) and fourth heart sound (S4) are very light sound, i.e., almost inaudible in nature. S3 and ...
The renin-angiotensin system and the sympathetic nervous system
... and the renin-angiotensin system (RAS). The autonomic nervous system is important in regulating cardiovascular homeostasis as it modifies both cardiac output and the diameter of resistance vessels. Blood vessels, however, are innervated almost exclusively by fibres of the SNS, which regulate vasomot ...
... and the renin-angiotensin system (RAS). The autonomic nervous system is important in regulating cardiovascular homeostasis as it modifies both cardiac output and the diameter of resistance vessels. Blood vessels, however, are innervated almost exclusively by fibres of the SNS, which regulate vasomot ...
Tailored telemonitoring in patients with heart failure
... answers for symptoms triggered immediate responses by the heart failure nurse. The process was led by a heart failure nurse and a nurse assistant. The nurse assistant took care of educational and general high risks, such as persistent lack of adherence or symptoms of depression.10 In Table 1 we pres ...
... answers for symptoms triggered immediate responses by the heart failure nurse. The process was led by a heart failure nurse and a nurse assistant. The nurse assistant took care of educational and general high risks, such as persistent lack of adherence or symptoms of depression.10 In Table 1 we pres ...
The Johns Hopkins Arrhythmia Service
... Welcome to the Johns Hopkins Arrhythmia Service. Our service exists to provide patients with timely as well as accurate diagnoses and therapies. We do this by using advanced technologies and working as a team with you, your family and your physician to help you return to your normal daily activities ...
... Welcome to the Johns Hopkins Arrhythmia Service. Our service exists to provide patients with timely as well as accurate diagnoses and therapies. We do this by using advanced technologies and working as a team with you, your family and your physician to help you return to your normal daily activities ...
Performance Measures ACC/AHA 2016 Prevention of Sudden
... development (1) and to ensure that the measures developed are aligned with ACC/AHA clinical guidelines. The writing committees also are charged with constructing measures that maximally capture important aspects of care quality, including timeliness, safety, effectiveness, efficiency, equity, and pa ...
... development (1) and to ensure that the measures developed are aligned with ACC/AHA clinical guidelines. The writing committees also are charged with constructing measures that maximally capture important aspects of care quality, including timeliness, safety, effectiveness, efficiency, equity, and pa ...
PDF
... 1975 a) have suggested that cardiac jelly is not simply a solution of macromolecules. Different solute molecules such as glycosaminoglycans and fucosylated glycoproteins interact to form exceedingly large complexes (Manasek, 1977). This observation suggested that the large components of cardiac jell ...
... 1975 a) have suggested that cardiac jelly is not simply a solution of macromolecules. Different solute molecules such as glycosaminoglycans and fucosylated glycoproteins interact to form exceedingly large complexes (Manasek, 1977). This observation suggested that the large components of cardiac jell ...
personal identification and authentication by using “the way
... First, a fine powder is used to enhance the latent fingerprints left on a glass or scanner surface. Then, a photo of the print is taken which is used to transfer the print to a PCB (Printed Circuit Board). UV light exposure and acid etching leaves the profile of the print on the board, which is used ...
... First, a fine powder is used to enhance the latent fingerprints left on a glass or scanner surface. Then, a photo of the print is taken which is used to transfer the print to a PCB (Printed Circuit Board). UV light exposure and acid etching leaves the profile of the print on the board, which is used ...
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.