Total arterial compliance estimated by stroke volume-to
... volume-to-aortic pulse pressure ratio (SV/PP) has been proposed as an estimate of total arterial compliance, but recent studies have questioned this approximation. Aortic pressure was obtained at rest in 31 adults undergoing cardiac catheterization (47 6 14 yr): controls (n 5 7), patients with dilat ...
... volume-to-aortic pulse pressure ratio (SV/PP) has been proposed as an estimate of total arterial compliance, but recent studies have questioned this approximation. Aortic pressure was obtained at rest in 31 adults undergoing cardiac catheterization (47 6 14 yr): controls (n 5 7), patients with dilat ...
4.2.3.A EKGF
... messages. Electrical energy is what directs and choreographs the rhythmic beating of your heart. Each beat is initiated by an electrical signal. This electrical activity can be monitored and recorded in the form of a graph. The graph made in this process is called an electrocardiogram and is abbrevi ...
... messages. Electrical energy is what directs and choreographs the rhythmic beating of your heart. Each beat is initiated by an electrical signal. This electrical activity can be monitored and recorded in the form of a graph. The graph made in this process is called an electrocardiogram and is abbrevi ...
4.2.3.A EKGF
... messages. Electrical energy is what directs and choreographs the rhythmic beating of your heart. Each beat is initiated by an electrical signal. This electrical activity can be monitored and recorded in the form of a graph. The graph made in this process is called an electrocardiogram and is abbrevi ...
... messages. Electrical energy is what directs and choreographs the rhythmic beating of your heart. Each beat is initiated by an electrical signal. This electrical activity can be monitored and recorded in the form of a graph. The graph made in this process is called an electrocardiogram and is abbrevi ...
Species-specific differences of myosin content in the developing
... primitive vertebrates, i.e., cartilaginous fishes, both the embryonic and the adult heart show a segmental subdivision similar to that of the embryonic mammalian heart. Early morphogenetic events during cardiac development in the dogfish are long-lasting, providing a suitable model to study changes ...
... primitive vertebrates, i.e., cartilaginous fishes, both the embryonic and the adult heart show a segmental subdivision similar to that of the embryonic mammalian heart. Early morphogenetic events during cardiac development in the dogfish are long-lasting, providing a suitable model to study changes ...
Absence of the aortic valve cusps with mitral atresia, normal left
... diameter) and the aortic valve cusps could not be found (fig 1). The pulmonary trunk was dilated with a dysplastic pulmonary valve. Saline was injected through a catheter inserted into the aortic arch via the umbilical artery and bubbles passed to the left ventricle. The patient became increasingly ...
... diameter) and the aortic valve cusps could not be found (fig 1). The pulmonary trunk was dilated with a dysplastic pulmonary valve. Saline was injected through a catheter inserted into the aortic arch via the umbilical artery and bubbles passed to the left ventricle. The patient became increasingly ...
Age Related Changes in the Parasympathetic Control of the Heart
... subjects (up to 90 years) in our study. The less consistent effect of age on VR likely relates to the smaller change and greater complexity of the maneuver. C Neumann (20) was of the opinion that results of the test proposed by Ewing and Clarke, however might differ between researchers because of di ...
... subjects (up to 90 years) in our study. The less consistent effect of age on VR likely relates to the smaller change and greater complexity of the maneuver. C Neumann (20) was of the opinion that results of the test proposed by Ewing and Clarke, however might differ between researchers because of di ...
Left ventricular dyssynergy and dispersion as determinant factors of
... ICD implantation for primary or secondary prevention at Kobe University Hospital between November 2007 and May 2014. The inclusion criterion was LVEF ≥35%, and the patients excluded from the study were those with: (i) more than moderate aortic and/or mitral valvular heart disease; (ii) the presence ...
... ICD implantation for primary or secondary prevention at Kobe University Hospital between November 2007 and May 2014. The inclusion criterion was LVEF ≥35%, and the patients excluded from the study were those with: (i) more than moderate aortic and/or mitral valvular heart disease; (ii) the presence ...
as PDF
... recommended cardiac pacing for specific conditions (vasovagal syncope, hypertrophic cardiomyopathy, heart failure with prolonged QRS duration, etc). Since over 10 years, left ventricular resynchronisation therapy has proved to be beneficial to patients presenting heart failure with complete left bun ...
... recommended cardiac pacing for specific conditions (vasovagal syncope, hypertrophic cardiomyopathy, heart failure with prolonged QRS duration, etc). Since over 10 years, left ventricular resynchronisation therapy has proved to be beneficial to patients presenting heart failure with complete left bun ...
Heart failure with preserved ejection fraction: Current management
... and pharmacologic interventions including class I, II or III antiarrhythmic drugs may improve clinical symptoms. If this is not possible, ventricular heart rate should be controlled using betablockers or heart rate lowering calcium antagonists [8]. Theoretically, late sodium currentinhibitors like r ...
... and pharmacologic interventions including class I, II or III antiarrhythmic drugs may improve clinical symptoms. If this is not possible, ventricular heart rate should be controlled using betablockers or heart rate lowering calcium antagonists [8]. Theoretically, late sodium currentinhibitors like r ...
real heart valve operation in cardiovascular model with
... Heart valves control the heart function; which is the responsible for blood distribution through the lungs and the body. Modeling valves' function may provide a tool for studying the heart's performance, as well as, it helps to represent some of the most common heart’s abnormalities such as mitral v ...
... Heart valves control the heart function; which is the responsible for blood distribution through the lungs and the body. Modeling valves' function may provide a tool for studying the heart's performance, as well as, it helps to represent some of the most common heart’s abnormalities such as mitral v ...
Fetal echocardiography: 20 years of progress - Heart
... flow in the systemic veins throughout gestation as evidenced during tachyarrhythmia. However, the early venous circulation is characterised by pronounced reversal of flow in the caval veins coincident with atrial contraction. Inferior caval vein (IVC) reverse flow at 12 weeks accounts for 25–30% of ...
... flow in the systemic veins throughout gestation as evidenced during tachyarrhythmia. However, the early venous circulation is characterised by pronounced reversal of flow in the caval veins coincident with atrial contraction. Inferior caval vein (IVC) reverse flow at 12 weeks accounts for 25–30% of ...
Statement on Transesophageal Echocardiography
... cardiac or vascular intervention. Patients undergoing these procedures have cardiovascular disease and may have co-morbidities of such severity that they are deemed too high risk for an open procedure. These patients are at increased risk for hemodynamic disturbances due to cardiovascular lesions, w ...
... cardiac or vascular intervention. Patients undergoing these procedures have cardiovascular disease and may have co-morbidities of such severity that they are deemed too high risk for an open procedure. These patients are at increased risk for hemodynamic disturbances due to cardiovascular lesions, w ...
Emergency stenting of vertical vein in a neonate with obstructed
... types: supracardiac (55%) , cardiac (30%), infracardiac (13%), and mixed (2-5%). TAPVD can further be classified by the presence or absence of obstruction. Obstructed total anomalous pulmonary venous drainage (TAPVD) is an uncommon cyanotic heart lesion that frequently present early within first few ...
... types: supracardiac (55%) , cardiac (30%), infracardiac (13%), and mixed (2-5%). TAPVD can further be classified by the presence or absence of obstruction. Obstructed total anomalous pulmonary venous drainage (TAPVD) is an uncommon cyanotic heart lesion that frequently present early within first few ...
1 General IntroductIon Pulmonary arterIal
... Aim and outline of this thesis In this thesis, several novel treatment strategies for right heart failure were tested in an experimental model of PH, inspired by lessons from the left heart. In Chapter 2, we characterized our model, and demonstrated that hemodynamic alterations during the progressio ...
... Aim and outline of this thesis In this thesis, several novel treatment strategies for right heart failure were tested in an experimental model of PH, inspired by lessons from the left heart. In Chapter 2, we characterized our model, and demonstrated that hemodynamic alterations during the progressio ...
Intramyocardial Analysis of Regional Systolic and Diastolic Function
... the high incidence and clinical impact on patient care. Doppler tissue imaging in IHD has been performed in several ways, using different methodologies and instrumentation. Pulsed wave Doppler and 2-dimensional color DTI have demonstrated differences in regional myocardial performance in several cli ...
... the high incidence and clinical impact on patient care. Doppler tissue imaging in IHD has been performed in several ways, using different methodologies and instrumentation. Pulsed wave Doppler and 2-dimensional color DTI have demonstrated differences in regional myocardial performance in several cli ...
Chronic Left Complete Bundle-branch Block - Heart
... was found to result both from a late onset and from a prolonged pre-ejection period of left ventricular contraction. These findings were confirmed by the comparison between the pre-operative and postoperative data of the 3 cases in which left bundlebranch block either appeared after or was aggravate ...
... was found to result both from a late onset and from a prolonged pre-ejection period of left ventricular contraction. These findings were confirmed by the comparison between the pre-operative and postoperative data of the 3 cases in which left bundlebranch block either appeared after or was aggravate ...
cardioprotective activity of leaves of kigelia africana on
... decreased HDL cholesterol level in the serum. An increase in concentration of total cholesterol and LDL cholesterol, and a decrease in HDL cholesterol are associated with raised risk of myocardial infarction. High level of circulating cholesterol and its accumulation in heart tissue is accompanied w ...
... decreased HDL cholesterol level in the serum. An increase in concentration of total cholesterol and LDL cholesterol, and a decrease in HDL cholesterol are associated with raised risk of myocardial infarction. High level of circulating cholesterol and its accumulation in heart tissue is accompanied w ...
A hybrid method for T2-weighted imaging of edema in the heart
... around the left anterior descending (LAD) coronary artery usually distal to the first diagonal branch. A 90-min total LAD occlusion was performed, to induce myocardial infarction, followed by reperfusion as previously described (5). Imaging was performed 3 days after infarction. Statistics and Measur ...
... around the left anterior descending (LAD) coronary artery usually distal to the first diagonal branch. A 90-min total LAD occlusion was performed, to induce myocardial infarction, followed by reperfusion as previously described (5). Imaging was performed 3 days after infarction. Statistics and Measur ...
A study on the prevalence of diastolic dysfunction in type 2 diabetes
... diastolic dysfunction, which is a key component of cardiomyopathy, still remains unclear [1]. Several epidemiological studies done worldwide have proved the association between left ventricular diastolic dysfunction and T2DM [2]. Around 75% of diabetic patients has been reported to die from cardiova ...
... diastolic dysfunction, which is a key component of cardiomyopathy, still remains unclear [1]. Several epidemiological studies done worldwide have proved the association between left ventricular diastolic dysfunction and T2DM [2]. Around 75% of diabetic patients has been reported to die from cardiova ...
The outcomes of operations for 539 patients with Ebstein anomaly
... tested by means of bulb syringe injection of saline into the right ventricle with temporary pulmonary artery occlusion. Before 1982, intraoperative assessment to detect residual tricuspid regurgitation (TR) after valve repair was performed by introducing an exploring finger into the right atrium thr ...
... tested by means of bulb syringe injection of saline into the right ventricle with temporary pulmonary artery occlusion. Before 1982, intraoperative assessment to detect residual tricuspid regurgitation (TR) after valve repair was performed by introducing an exploring finger into the right atrium thr ...
Atrial Fibrillation: Diagnosis and Treatment
... randomized controlled trial showed that lenient rate control, defined as a ventricular rate of less than 110 beats per minute at rest, was not inferior to strict rate control in preventing cardiac death, heart failure, stroke, and life-threatening arrhythmias.21 Beta blockers (e.g., metoprolol, esmo ...
... randomized controlled trial showed that lenient rate control, defined as a ventricular rate of less than 110 beats per minute at rest, was not inferior to strict rate control in preventing cardiac death, heart failure, stroke, and life-threatening arrhythmias.21 Beta blockers (e.g., metoprolol, esmo ...
NATIONAL QUALITY FORUM
... to evaluate measures against the NQF criteria of importance to measure and report, scientific acceptability of measure properties, usability, and feasibility. Four conditions (as indicated below) must be met before proposed measures may be considered and evaluated for suitability as voluntary consen ...
... to evaluate measures against the NQF criteria of importance to measure and report, scientific acceptability of measure properties, usability, and feasibility. Four conditions (as indicated below) must be met before proposed measures may be considered and evaluated for suitability as voluntary consen ...
Defibrillation
... After help is called for, cardiopulmonary resuscitation (CPR) is begun and continued until the caregivers arrive and set up the defibrillator. Electrocardiogram leads are attached to the patient's chest. Gel or paste is applied to the defibrillator paddles, or two gel pads are placed on the patient' ...
... After help is called for, cardiopulmonary resuscitation (CPR) is begun and continued until the caregivers arrive and set up the defibrillator. Electrocardiogram leads are attached to the patient's chest. Gel or paste is applied to the defibrillator paddles, or two gel pads are placed on the patient' ...
Methods for Measuring Right Ventricular Function
... maximizing the mechanical efficiency of the RV. Many cardiopulmonary diseases, such as pulmonary arterial hypertension (PAH) compromise RV function, in particular its ability to increase contractility sufficiently to preserve efficient coupling with the diseased pulmonary vasculature. In patients with chr ...
... maximizing the mechanical efficiency of the RV. Many cardiopulmonary diseases, such as pulmonary arterial hypertension (PAH) compromise RV function, in particular its ability to increase contractility sufficiently to preserve efficient coupling with the diseased pulmonary vasculature. In patients with chr ...
Defibrillation
... After help is called for, cardiopulmonary resuscitation (CPR) is begun and continued until the caregivers arrive and set up the defibrillator. Electrocardiogram leads are attached to the patient's chest. Gel or paste is applied to the defibrillator paddles, or two gel pads are placed on the patient' ...
... After help is called for, cardiopulmonary resuscitation (CPR) is begun and continued until the caregivers arrive and set up the defibrillator. Electrocardiogram leads are attached to the patient's chest. Gel or paste is applied to the defibrillator paddles, or two gel pads are placed on the patient' ...
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.