The renin-angiotensin system and the sympathetic nervous system
... The renin-angiotensin system (RAS) and the sympathetic nervous system (SNS) are both contributors to the development and maintenance of hypertension. It has recently been recognised that extensive interactions occur between the RAS and SNS. In addition to the classical interactions occurring between ...
... The renin-angiotensin system (RAS) and the sympathetic nervous system (SNS) are both contributors to the development and maintenance of hypertension. It has recently been recognised that extensive interactions occur between the RAS and SNS. In addition to the classical interactions occurring between ...
1 Cardiac Electrical Activity
... The electrical activation of a single cardiac cell or even of a small group of cells does not produce enough voltage to be recorded on the body surface. Clinical electrocardiography is made possible by the activation of large groups of atrial and ventricular myocardial cells, whose numbers are of s ...
... The electrical activation of a single cardiac cell or even of a small group of cells does not produce enough voltage to be recorded on the body surface. Clinical electrocardiography is made possible by the activation of large groups of atrial and ventricular myocardial cells, whose numbers are of s ...
understanding your heart valve
... serious health risk. The need for anticoagulation medication is usually minimal with tissue valves such as a Mosaic® valve. Therefore, a Mosaic valve may be especially useful for: women in their childbearing years, elderly patients, and patients for whom anticoagulation medication is not recommended ...
... serious health risk. The need for anticoagulation medication is usually minimal with tissue valves such as a Mosaic® valve. Therefore, a Mosaic valve may be especially useful for: women in their childbearing years, elderly patients, and patients for whom anticoagulation medication is not recommended ...
3 Bipolar Limb Leads
... Sympathetic from the cardiac plexus supplies all parts of the heart (atria, ventricle and all parts of the conduction system) Parasympathetic from Vagus nerves supply mainly the atria, SA and AV nodes, very little supply to ventricles Sympathetic: increase the permeability of the cardiac cells to Na ...
... Sympathetic from the cardiac plexus supplies all parts of the heart (atria, ventricle and all parts of the conduction system) Parasympathetic from Vagus nerves supply mainly the atria, SA and AV nodes, very little supply to ventricles Sympathetic: increase the permeability of the cardiac cells to Na ...
Print - American Journal of Physiology
... cardiac progenitors exist in the adult heart at all (particularly in elderly patients) and, if yes, ...
... cardiac progenitors exist in the adult heart at all (particularly in elderly patients) and, if yes, ...
Congenital heart disease in cats - Acapulco-Vet
... The murmur of mitral insufficiency is typically of mixed frequency and harsh sounding, but it may be high-pitched or musical in quality. Although this murmur is usually loudest over the mitral valve area and left atrium one has to be aware that the sternum often enhances the acoustics of feline murm ...
... The murmur of mitral insufficiency is typically of mixed frequency and harsh sounding, but it may be high-pitched or musical in quality. Although this murmur is usually loudest over the mitral valve area and left atrium one has to be aware that the sternum often enhances the acoustics of feline murm ...
MYOCARDITIS
... comes to epidermiology, the prevalence of acute myocarditis is unknown because most cases are not recognized on account of non-specific symptoms or no symptoms at all. Nonetheless, it is estimated that as much as 5% of a virus-infected population may experience some form of cardiac involvement assoc ...
... comes to epidermiology, the prevalence of acute myocarditis is unknown because most cases are not recognized on account of non-specific symptoms or no symptoms at all. Nonetheless, it is estimated that as much as 5% of a virus-infected population may experience some form of cardiac involvement assoc ...
Magnetic VT study: a prospective, multicenter, post-market
... users claim that combining it with BIP results in a more comprehensive view of the scar tissue and results in more successful VT ablation procedures (3,5). Other techniques, like the use of surface electrocardiogram (ECG) and cardiac magnetic resonance (CMR), are common noninvasive ways to determin ...
... users claim that combining it with BIP results in a more comprehensive view of the scar tissue and results in more successful VT ablation procedures (3,5). Other techniques, like the use of surface electrocardiogram (ECG) and cardiac magnetic resonance (CMR), are common noninvasive ways to determin ...
Print - Circulation
... segmental left ventricular disease, such as with coronary artery disease, these dimensions may not be true reflectors of the corresponding volumes. In such ventricles one probably should use echocardiography to evaluate the motion of individual segments of the chamber. To evaluate overall left ventr ...
... segmental left ventricular disease, such as with coronary artery disease, these dimensions may not be true reflectors of the corresponding volumes. In such ventricles one probably should use echocardiography to evaluate the motion of individual segments of the chamber. To evaluate overall left ventr ...
Structure and Function of the Developing Zebrafish Heart
... studies (Stainier et al., 1996; Weinstein and Fishman, 1996; Warren and Fishman, 1998). The cardiovascular system appears when needs for oxygen and nutrition cannot be met by diffusion alone, because of the volume or increased metabolic rate of an organism (Burggren and Pinder, 1991; Pelster and Bur ...
... studies (Stainier et al., 1996; Weinstein and Fishman, 1996; Warren and Fishman, 1998). The cardiovascular system appears when needs for oxygen and nutrition cannot be met by diffusion alone, because of the volume or increased metabolic rate of an organism (Burggren and Pinder, 1991; Pelster and Bur ...
and Right Descending Aorta
... descending right-sided aorta were documented for the first time; however, normal origin of the right subclavian artery was present in each case and a complete vascular ring was not present. In 1948, Edwards also reported the autopsy findings from a 17-month-old male who died from small bowel obstruc ...
... descending right-sided aorta were documented for the first time; however, normal origin of the right subclavian artery was present in each case and a complete vascular ring was not present. In 1948, Edwards also reported the autopsy findings from a 17-month-old male who died from small bowel obstruc ...
Atrioventricular node fetal dispersion and His bundle
... first year of life. James pointed out two possible mechanisms responsible for the process: resorptive degeneration produced by pluripotential fibroblasts present in the central fibrous body that smooth the irregular borders (archipelagos) of the fetal AV node and His bundle (21,26,43,44) or a mechan ...
... first year of life. James pointed out two possible mechanisms responsible for the process: resorptive degeneration produced by pluripotential fibroblasts present in the central fibrous body that smooth the irregular borders (archipelagos) of the fetal AV node and His bundle (21,26,43,44) or a mechan ...
cardiac structure and function in young athletes
... of 13 endurance-trained and 7 non-athletic male adolescents (x ± SE, age = 15.33 ± 0.33 and 15.15 ± 0.23 years, respectively). The volunteers underwent echocardiography at rest to determine left ventricular end diastole dimension (LVDd) and end systole dimension (LVDs), left ventricular posterior wa ...
... of 13 endurance-trained and 7 non-athletic male adolescents (x ± SE, age = 15.33 ± 0.33 and 15.15 ± 0.23 years, respectively). The volunteers underwent echocardiography at rest to determine left ventricular end diastole dimension (LVDd) and end systole dimension (LVDs), left ventricular posterior wa ...
Aortic valve sclerosis is associated with the extent of coronary artery
... This study initially provides information about the complexity of CAD with AVS in stable CAD cases. However, our study suggests that AVS does not give enough information about the complexity of CAD in ACS cases. For interventional practice, AVS may be related to detection of some complex conditions ...
... This study initially provides information about the complexity of CAD with AVS in stable CAD cases. However, our study suggests that AVS does not give enough information about the complexity of CAD in ACS cases. For interventional practice, AVS may be related to detection of some complex conditions ...
heart failure - WordPress.com
... Chronic Heart Failure • Diastolic Heart Failure It is a syndrome, where left ventricle relaxation is abnormal. There is stiffness in ventricular wall and decrease LV Compliance, leading to ...
... Chronic Heart Failure • Diastolic Heart Failure It is a syndrome, where left ventricle relaxation is abnormal. There is stiffness in ventricular wall and decrease LV Compliance, leading to ...
Bayesian Probability Maps For Evaluation Of Cardiac Ultrasound Data
... Echocardiography is more accessible, mobile and inexpensive compared to other imaging techniques and has become a widely used diagnostic method in cardiology in recent years. Unfortunately ultrasound images struggle with inherent problems which in large part stem from noise, and is often referred to ...
... Echocardiography is more accessible, mobile and inexpensive compared to other imaging techniques and has become a widely used diagnostic method in cardiology in recent years. Unfortunately ultrasound images struggle with inherent problems which in large part stem from noise, and is often referred to ...
Muscles and movement - Pearson Schools and FE Colleges
... Each molecule of the 2-carbon acetyl coenzyme A from the link reaction is used to generate: • three molecules of reduced NAD • one molecule of reduced FAD • two molecules of CO2 • one molecule of ATP by substrate-level phosphorylation (synthesised directly from the energy released by reorganising ch ...
... Each molecule of the 2-carbon acetyl coenzyme A from the link reaction is used to generate: • three molecules of reduced NAD • one molecule of reduced FAD • two molecules of CO2 • one molecule of ATP by substrate-level phosphorylation (synthesised directly from the energy released by reorganising ch ...
Percutaneous Left-Atrial Appendage Closure Devices
... Longer term follow-up from the PROTECT AF study was reported by Reddy et al. in 2012. (2) At a mean follow-up of 2.3 years, the results were similar to the initial report. The relative risk for the composite primary outcome in the Watchman group compared to anticoagulation was 0.71, and this met non ...
... Longer term follow-up from the PROTECT AF study was reported by Reddy et al. in 2012. (2) At a mean follow-up of 2.3 years, the results were similar to the initial report. The relative risk for the composite primary outcome in the Watchman group compared to anticoagulation was 0.71, and this met non ...
Impact of Definitions of Left Ventricular Hypertrophy on Left
... Background: The impact of different definitions of left ventricular hypertrophy (LVH) on the assessment of left ventricular (LV) remodeling in predialysis chronic kidney disease (CKD) remains unclear. Methods: Echocardiography was performed on 107 consecutively enrolled patients with different stage ...
... Background: The impact of different definitions of left ventricular hypertrophy (LVH) on the assessment of left ventricular (LV) remodeling in predialysis chronic kidney disease (CKD) remains unclear. Methods: Echocardiography was performed on 107 consecutively enrolled patients with different stage ...
Cardiac Resynchronization Therapy for Mild-to
... LVEF ≤ 30% by MUGA or LVEF ≤ 30% and LVEDD > 60mm by echocardiogram within 6 months of randomization ICD indication: 1° or 2° prevention Optimal heart failure pharmacological therapy Normal sinus rhythm or chronic permanent AF or flutter with a resting ventricular rate ≤ 60 bpm and ventricular rat ...
... LVEF ≤ 30% by MUGA or LVEF ≤ 30% and LVEDD > 60mm by echocardiogram within 6 months of randomization ICD indication: 1° or 2° prevention Optimal heart failure pharmacological therapy Normal sinus rhythm or chronic permanent AF or flutter with a resting ventricular rate ≤ 60 bpm and ventricular rat ...
Table 1 - JACC: Cardiovascular Interventions
... and the presence of adequate septal rims to secure the device as judged by the individual investigator at the time of implantation. In the surgical arm, patients could be enrolled retrospectively within 12 months of institutional review board approval. Exclusion criteria for the study included the p ...
... and the presence of adequate septal rims to secure the device as judged by the individual investigator at the time of implantation. In the surgical arm, patients could be enrolled retrospectively within 12 months of institutional review board approval. Exclusion criteria for the study included the p ...
anomalous pulmonary venous drainage - Heart
... into which they drain, and the secondary effects that this re-circulation of blood in the pulmonary circuit has upon the size and shape of the heart. Whether or not there is an associated atrial septal defect there is a continuous left-to-right shunt of blood, the effect of this being to cause right ...
... into which they drain, and the secondary effects that this re-circulation of blood in the pulmonary circuit has upon the size and shape of the heart. Whether or not there is an associated atrial septal defect there is a continuous left-to-right shunt of blood, the effect of this being to cause right ...