and Murray D. Esler Markus P. Schlaich, David
... component of the increase in LV mass in both hypertensive groups is attributable to increased blood pressure. On the basis of the correlation shown in Figure 2A, cardiac NE spillover only explains ⬇25% of the variation in LV mass. Therefore, LV hypertrophy cannot be attributed solely to cardiac NE r ...
... component of the increase in LV mass in both hypertensive groups is attributable to increased blood pressure. On the basis of the correlation shown in Figure 2A, cardiac NE spillover only explains ⬇25% of the variation in LV mass. Therefore, LV hypertrophy cannot be attributed solely to cardiac NE r ...
Understanding Preload
... Preload is known as the load imposed on the ventricle at the end of diastole. At a cellular level, preload is defined as the maximum degree of myocardial fiber stretch or tension before ventricular contraction, determined by the mean sarcomere length at the end of diastole. Since sarcomere length ca ...
... Preload is known as the load imposed on the ventricle at the end of diastole. At a cellular level, preload is defined as the maximum degree of myocardial fiber stretch or tension before ventricular contraction, determined by the mean sarcomere length at the end of diastole. Since sarcomere length ca ...
This is the new PowerPoint template
... Following CRT implant, approximately 20-25% of heart failure patients do not appear to improve. A key unmet need is a means to determine acute response to CRT pacing during implant and follow-up procedures. Such feedback may improve LV lead placement and programming, thus improving patient outcomes. ...
... Following CRT implant, approximately 20-25% of heart failure patients do not appear to improve. A key unmet need is a means to determine acute response to CRT pacing during implant and follow-up procedures. Such feedback may improve LV lead placement and programming, thus improving patient outcomes. ...
Ch 5 CV - Georgetown ISD
... In the United States, someone has a heart attack every 34 seconds. Each minute, someone in the United States dies from a heart disease-related event. Coronary heart disease alone costs the United States $108.9 billion each year. ...
... In the United States, someone has a heart attack every 34 seconds. Each minute, someone in the United States dies from a heart disease-related event. Coronary heart disease alone costs the United States $108.9 billion each year. ...
as a PDF
... The adult aortic arch is formed from the fourth primitive left aortic arch while the right fourth arch generally disappears. If the left fourth arch disappears and the right persists, a right aortic arch develops. If both arches persist, they form a double aortic arch or a vascular ring encircling t ...
... The adult aortic arch is formed from the fourth primitive left aortic arch while the right fourth arch generally disappears. If the left fourth arch disappears and the right persists, a right aortic arch develops. If both arches persist, they form a double aortic arch or a vascular ring encircling t ...
pulmonary vascular disease in patients with congenital
... concentration compromises oxygen delivery, which can already be limited by a low cardiac output and can become critical in the right ventricle, where the perfusion gradient may already be marginal. An excessive hemoglobin concentration is associated with a high viscosity ...
... concentration compromises oxygen delivery, which can already be limited by a low cardiac output and can become critical in the right ventricle, where the perfusion gradient may already be marginal. An excessive hemoglobin concentration is associated with a high viscosity ...
Obstructive sleep apnoea: longer respiratory event lengths in patients with heart failure
... hyperventilation [23]. The amplified response of peripheral chemoreceptors to a high carbon dioxide level causes hyperventilation. In patients without SDB, the response of peripheral chemoreceptors to changes in blood gas tensions may not be as dynamic as that in patients with CSA or OSA. The curren ...
... hyperventilation [23]. The amplified response of peripheral chemoreceptors to a high carbon dioxide level causes hyperventilation. In patients without SDB, the response of peripheral chemoreceptors to changes in blood gas tensions may not be as dynamic as that in patients with CSA or OSA. The curren ...
Early Fetal Echocardiography at the Time of 11 –13 Weeks Scan
... sensitivity basing on NT screening their prevalence of CHDs was low (1.7/1000).17 Comparably Westin and co-workers reported detection rate at the level 5.8% with markedly higher CHD prevalence of 3.3/1000 basing on low-risk population.4 As a response some authors suggested to decrease NT cutoff to 9 ...
... sensitivity basing on NT screening their prevalence of CHDs was low (1.7/1000).17 Comparably Westin and co-workers reported detection rate at the level 5.8% with markedly higher CHD prevalence of 3.3/1000 basing on low-risk population.4 As a response some authors suggested to decrease NT cutoff to 9 ...
Investigation of changes in apelin receptor mRNA and protein
... designated as chronic subgroups. Animals were anesthetized using intraperitoneal injections of ketamine (80 mg/kg) and xylazin (10 mg/kg). A 4-cm longitudinal incision was made in the skin and the abdominal wall of the left flank. The left renal artery was exposed and separated from the renal vein a ...
... designated as chronic subgroups. Animals were anesthetized using intraperitoneal injections of ketamine (80 mg/kg) and xylazin (10 mg/kg). A 4-cm longitudinal incision was made in the skin and the abdominal wall of the left flank. The left renal artery was exposed and separated from the renal vein a ...
2 - 张丽
... time of the E wave velocity (DcT), and isovolumic relaxation time (IVRT) were measured by pulse wave Doppler. The biplane Simpson’s method was used to measure left ventricular eject fraction(LVEF). 1.3 Echo PAC Workstation and Data Analysis The original data were input into workstation. STI mode was ...
... time of the E wave velocity (DcT), and isovolumic relaxation time (IVRT) were measured by pulse wave Doppler. The biplane Simpson’s method was used to measure left ventricular eject fraction(LVEF). 1.3 Echo PAC Workstation and Data Analysis The original data were input into workstation. STI mode was ...
Histopathology of Human Coronary Atherosclerosis by
... he progression and regression of atherosclerotic plaques appear to be related to the amount and type of lipids that accumulate in the intima.1– 4 Recent studies have shown that plaque composition, rather than size or volume, determines whether an arterial narrowing will rupture and cause an accelera ...
... he progression and regression of atherosclerotic plaques appear to be related to the amount and type of lipids that accumulate in the intima.1– 4 Recent studies have shown that plaque composition, rather than size or volume, determines whether an arterial narrowing will rupture and cause an accelera ...
Research on Atrial septal defect (ASD)
... through four pulmonary veins and then passes to the left ventricle via mitral or bicuspid valve. From the left ventricle, the oxygenated blood leaves the heart for systemic circulation through aorta via aortic valve. In heart the oxygenated and deoxygenated compartments are separated by the atrial s ...
... through four pulmonary veins and then passes to the left ventricle via mitral or bicuspid valve. From the left ventricle, the oxygenated blood leaves the heart for systemic circulation through aorta via aortic valve. In heart the oxygenated and deoxygenated compartments are separated by the atrial s ...
FULL TEXT - Biology of Sport
... growth and better results in force disciplines of sport were confirmed in recent years [1] but the physiological mechanism of this phenomenon remains unclear. A long term of AAS intake may bring various side effects resulting in serious health damages [3,12,13,22,24,28]. Overdoses of AAS causes card ...
... growth and better results in force disciplines of sport were confirmed in recent years [1] but the physiological mechanism of this phenomenon remains unclear. A long term of AAS intake may bring various side effects resulting in serious health damages [3,12,13,22,24,28]. Overdoses of AAS causes card ...
Predictors of Right Ventricular Systolic Dysfunction
... (EF): 31 ± 4%) selected through purposive sampling The patients were divided into two groups based on their RV systolic function determined by tissue Doppler systolic velocities (RV-Sm): group A (RV-Sm ≥ 10 cm/s, N = 48) and group B (RV-Sm < 10 cm/s, N = 31). The two groups were compared regarding c ...
... (EF): 31 ± 4%) selected through purposive sampling The patients were divided into two groups based on their RV systolic function determined by tissue Doppler systolic velocities (RV-Sm): group A (RV-Sm ≥ 10 cm/s, N = 48) and group B (RV-Sm < 10 cm/s, N = 31). The two groups were compared regarding c ...
Articles in PresS. Am J Physiol Heart Circ Physiol (February 3, 2012
... contractility and diastolic stiffness. Increasingly anisotropic conduction velocity due to fibrosis ...
... contractility and diastolic stiffness. Increasingly anisotropic conduction velocity due to fibrosis ...
Document
... The right ventricle remodeling is concomitant with an increase in the pulmonary resistance (Fig. 1). When the pulmonary arterial pressure progressively increases from a normal value (Fig. 1a) to a value corresponding to a light pulmonary hypertension (Fig. 1b), pulmonary arteries are slightly vasoco ...
... The right ventricle remodeling is concomitant with an increase in the pulmonary resistance (Fig. 1). When the pulmonary arterial pressure progressively increases from a normal value (Fig. 1a) to a value corresponding to a light pulmonary hypertension (Fig. 1b), pulmonary arteries are slightly vasoco ...
Market Analysis of Cardiac Electrical Mapping
... The direction of flow of blood in the human heart is controlled by four valves. The valves between the atria and the ventricles are known as the atrioventricular valves. The right atrioventricular valve, between the right atrium and the right ventricle is called the tricuspid valve, because it conta ...
... The direction of flow of blood in the human heart is controlled by four valves. The valves between the atria and the ventricles are known as the atrioventricular valves. The right atrioventricular valve, between the right atrium and the right ventricle is called the tricuspid valve, because it conta ...
Gender-related differences in cardiac response to supine
... marked ECG changes (horizontal or downsloping ST segment depression ~0.2 mV). However, no patient in this study had exercise discontinued because of ischemic chest pain, severe arrhythmia or ECG abnormalities; severe fatigue was their exercise end point. Repeat blood pool imaging was obtained during ...
... marked ECG changes (horizontal or downsloping ST segment depression ~0.2 mV). However, no patient in this study had exercise discontinued because of ischemic chest pain, severe arrhythmia or ECG abnormalities; severe fatigue was their exercise end point. Repeat blood pool imaging was obtained during ...
Hereditary Hemochromatosis (HFE) genotypes in heart failure
... Ferritin levels were normal (< 300 ng/ml) in all three patients (two men). One suffered from diabetes, while two had cerebral stroke as well as atrial fibrillation. Two of them had died, at the ages 80 and 98 years, respectively. The last one, a male age 80 years old is still alive. None of them had ...
... Ferritin levels were normal (< 300 ng/ml) in all three patients (two men). One suffered from diabetes, while two had cerebral stroke as well as atrial fibrillation. Two of them had died, at the ages 80 and 98 years, respectively. The last one, a male age 80 years old is still alive. None of them had ...
The Single Ventricle
... pulmonary circulations have also been subjected to bypass and injury Combined effect is a systemic inflammatory and adrenergic stress response The ventricle can also exhibit a low cardiac output syndrome in the first 12-24 hours post op ...
... pulmonary circulations have also been subjected to bypass and injury Combined effect is a systemic inflammatory and adrenergic stress response The ventricle can also exhibit a low cardiac output syndrome in the first 12-24 hours post op ...
ICSP_IuliaMirea_2016_V9_finale
... plays an important role in the mechanical activity of the heart ...
... plays an important role in the mechanical activity of the heart ...
Improvement of left ventricular contractile function by
... by the following protocol: After 5 min of warm-up exercise that consisted of walking at 0 grade at a speed of 1.7 or 2.5 mph, patients began to exercise at the speed equivalent to the next to the last stage attained with the prior Bruce protocol with the grade set at either 5% or 10%, depending on t ...
... by the following protocol: After 5 min of warm-up exercise that consisted of walking at 0 grade at a speed of 1.7 or 2.5 mph, patients began to exercise at the speed equivalent to the next to the last stage attained with the prior Bruce protocol with the grade set at either 5% or 10%, depending on t ...
NIH Public Access
... Accurate estimation of the burden of OHCA is essential to evaluate progress towards improving public health by reducing cardiovascular disease. Clinical trials often exclude JAMA. Author manuscript; available in PMC 2011 October 6. ...
... Accurate estimation of the burden of OHCA is essential to evaluate progress towards improving public health by reducing cardiovascular disease. Clinical trials often exclude JAMA. Author manuscript; available in PMC 2011 October 6. ...
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.