Advanced Systolic Function - Society of Cardiovascular
... during the 2-dimensional echocardiographic examination. The entire left ventricle can be examined by TEE using the transgastric short-axis imaging planes at the level of the left ventricular apex, mid-papillary muscles, and left ventricular base. Alternatively, the entire left ventricle can also be ...
... during the 2-dimensional echocardiographic examination. The entire left ventricle can be examined by TEE using the transgastric short-axis imaging planes at the level of the left ventricular apex, mid-papillary muscles, and left ventricular base. Alternatively, the entire left ventricle can also be ...
The prevalence, incidence, management and risks of atrial
... Background: There is limited information on prevalent and incident atrial fibrillation in Chinese. We aimed to investigate the prevalence, incidence, management and risks of atrial fibrillation in an elderly Chinese population. Methods: In a population—based prospective study in elderly (≥60 years) ...
... Background: There is limited information on prevalent and incident atrial fibrillation in Chinese. We aimed to investigate the prevalence, incidence, management and risks of atrial fibrillation in an elderly Chinese population. Methods: In a population—based prospective study in elderly (≥60 years) ...
The Brugada ECG Pattern - Circulation: Arrhythmia and
... and are found after myocardial infarction58 or in ARVC.59 In the Brugada syndrome, late potentials probably have a subepicardial origin because they coincided with late activation in epicardial but not endocardial electrograms of the right ventricular outflow tract.60 Furthermore, fragmentation of Q ...
... and are found after myocardial infarction58 or in ARVC.59 In the Brugada syndrome, late potentials probably have a subepicardial origin because they coincided with late activation in epicardial but not endocardial electrograms of the right ventricular outflow tract.60 Furthermore, fragmentation of Q ...
Aortic Stenosis In The Elderly
... postmortem studies or studies in the few patients who refused or were denied s u rg e r y. 15,16 Such studies have shown that once symptoms develop, the patient is expected to live less than 5 years on average, and that survival beyond 10 years is unlikely. In 1968, Ross and Braunwald 12 a rg u e d ...
... postmortem studies or studies in the few patients who refused or were denied s u rg e r y. 15,16 Such studies have shown that once symptoms develop, the patient is expected to live less than 5 years on average, and that survival beyond 10 years is unlikely. In 1968, Ross and Braunwald 12 a rg u e d ...
SERIES ‘‘PULMONARY HYPERTENSION: BASIC CONCEPTS FOR PRACTICAL MANAGEMENT’’
... progressive increase in pulmonary vascular resistance, ultimately leading to right ventricular failure and death. The functional capacity of the right ventricle is a major prognostic determinant. Our understanding of right ventricle performance in pulmonary hypertension has been hindered by the lack ...
... progressive increase in pulmonary vascular resistance, ultimately leading to right ventricular failure and death. The functional capacity of the right ventricle is a major prognostic determinant. Our understanding of right ventricle performance in pulmonary hypertension has been hindered by the lack ...
Electrocardiogram Interpretation
... Figure 1. Frontal view of the heart. ...................................................................................................................... 7 Figure 2. Schematic frontal view of the conduction system................................................................................. 7 F ...
... Figure 1. Frontal view of the heart. ...................................................................................................................... 7 Figure 2. Schematic frontal view of the conduction system................................................................................. 7 F ...
PDF
... patent ductus arteriosus (PDA) for stent implantation in neonates with duct-dependent pulmonary circulation. Methods: Seven neonates with pulmonary atresia and PDA initially diagnosed with echocardiography who were scheduled for MDCT for evaluation for stent implantation were reviewed. The PDA size ...
... patent ductus arteriosus (PDA) for stent implantation in neonates with duct-dependent pulmonary circulation. Methods: Seven neonates with pulmonary atresia and PDA initially diagnosed with echocardiography who were scheduled for MDCT for evaluation for stent implantation were reviewed. The PDA size ...
Development and validation of an algorithm to
... right atrial flutter, “lower loop reentry” has been the term proposed for counterclockwise reentry around the inferior vena cava where the anterior arm of the circuit is the inferior vena cava - tricuspid valve isthmus and the posterior arm is the low posterior right atrium wall with conduction acro ...
... right atrial flutter, “lower loop reentry” has been the term proposed for counterclockwise reentry around the inferior vena cava where the anterior arm of the circuit is the inferior vena cava - tricuspid valve isthmus and the posterior arm is the low posterior right atrium wall with conduction acro ...
6 The Coronary System and Associated Medical Devices
... connections, called anastomoses, provide alternate routes for blood to reach--particular group of cells. The myocardium may contain anastomoses that connect branches of a given coronary artery or extend between branches of different coronary arteries. They provide accessory pathways for arterial blo ...
... connections, called anastomoses, provide alternate routes for blood to reach--particular group of cells. The myocardium may contain anastomoses that connect branches of a given coronary artery or extend between branches of different coronary arteries. They provide accessory pathways for arterial blo ...
Early right ventricular fibrosis and reduction in - AJP
... sense the mdx mouse provides insights into the earlier aspects of the disease, offering the opportunity to understand the mechanisms underlying the initiating aspects of the dystrophic disease process. Of all the skeletal muscles in the mdx mouse, the diaphragm shows the most significant levels of f ...
... sense the mdx mouse provides insights into the earlier aspects of the disease, offering the opportunity to understand the mechanisms underlying the initiating aspects of the dystrophic disease process. Of all the skeletal muscles in the mdx mouse, the diaphragm shows the most significant levels of f ...
Tachycardia - UW Blogs Network
... Multiple reentry circuits within the atria cause Atrial Fibrillation (AF). The AV node is thus bombarded by irregular impulses of which only a portion can be conducted. Thus the resulting ventricular rate (often called ventricular “response” is irregularly irregular (no pattern). AF may be paroxysma ...
... Multiple reentry circuits within the atria cause Atrial Fibrillation (AF). The AV node is thus bombarded by irregular impulses of which only a portion can be conducted. Thus the resulting ventricular rate (often called ventricular “response” is irregularly irregular (no pattern). AF may be paroxysma ...
Catheter Ablation in New Zealand
... the onset of symptoms). This strategy is variably effective and whilst 40-90% of people continue to have paroxysmal AF, the frequency and intensity of their symptomatic episodes is reduced. One study suggested that intermittent ECG monitoring for recurrence underestimates the burden of AF by approxi ...
... the onset of symptoms). This strategy is variably effective and whilst 40-90% of people continue to have paroxysmal AF, the frequency and intensity of their symptomatic episodes is reduced. One study suggested that intermittent ECG monitoring for recurrence underestimates the burden of AF by approxi ...
Catheter Ablation as a Treatment for Atrial Fibrillation
... appears to be located within the cardiac muscle that extends into the pulmonary veins. Atrial fibrillation accounts for approximately one third of hospitalizations for cardiac rhythm disturbances. Symptoms of atrial fibrillation, e.g., palpitations, decreased exercise tolerance, and dyspnea, are pri ...
... appears to be located within the cardiac muscle that extends into the pulmonary veins. Atrial fibrillation accounts for approximately one third of hospitalizations for cardiac rhythm disturbances. Symptoms of atrial fibrillation, e.g., palpitations, decreased exercise tolerance, and dyspnea, are pri ...
Endocardial mapping of atrial fibrillation in the human right atrium
... models[10–16] and humans[16–24] and has provided insights on the arrhythmia mechanism, but studies have been limited by the resolution of the mapping system used[25], the extent of atrium mapped[20], or the need for the procedure to be performed after thoracotomy[20–22], which has an associated morb ...
... models[10–16] and humans[16–24] and has provided insights on the arrhythmia mechanism, but studies have been limited by the resolution of the mapping system used[25], the extent of atrium mapped[20], or the need for the procedure to be performed after thoracotomy[20–22], which has an associated morb ...
Current perspectives Modern hemodynamic evaluation of the
... circulation. These errors or approximations can be limited by the definition of PVR by a multipoint pressure/flow line7. Recent studies showed that improvement in exercise capacity with prostacyclin therapy in PAH patients may not be associated with significant changes in pulmonary hemodynamics at r ...
... circulation. These errors or approximations can be limited by the definition of PVR by a multipoint pressure/flow line7. Recent studies showed that improvement in exercise capacity with prostacyclin therapy in PAH patients may not be associated with significant changes in pulmonary hemodynamics at r ...
Pacemaker Therapy in Atrial Fibrillation
... There are a number of different roles for pacemaker therapy in the management of Atrial Fibrillation (AF). The most common indication for pacing in AF is to prevent bradycardia in patients with rapid ventricular rates and sinus node dysfunction. Atrioventricular (AV) junction ablation can be an effe ...
... There are a number of different roles for pacemaker therapy in the management of Atrial Fibrillation (AF). The most common indication for pacing in AF is to prevent bradycardia in patients with rapid ventricular rates and sinus node dysfunction. Atrioventricular (AV) junction ablation can be an effe ...
Selected Aortic Valve Procedures
... valve-sparing procedures, namely, Yacoub and David, have yielded excellent long -term results in the treatment of aortic root aneurysms, with or without aortic regurgitation. However, these techniques are demanding and not widely used. Recently, a new and simplified valve-sparing technique, named "s ...
... valve-sparing procedures, namely, Yacoub and David, have yielded excellent long -term results in the treatment of aortic root aneurysms, with or without aortic regurgitation. However, these techniques are demanding and not widely used. Recently, a new and simplified valve-sparing technique, named "s ...
Secondary pulmonary hypertension – diagnosis and management
... smooth muscle proliferation, which late in its course may contain plexiform lesions and in situ thrombi. The classic Eisenmenger’s syndrome is associated with a ventricular septal defect (VSD). In contrast, atrial septal defects (ASD), which are high flow-low pressure shunts, are not commonly associ ...
... smooth muscle proliferation, which late in its course may contain plexiform lesions and in situ thrombi. The classic Eisenmenger’s syndrome is associated with a ventricular septal defect (VSD). In contrast, atrial septal defects (ASD), which are high flow-low pressure shunts, are not commonly associ ...
Data Collection Form Word Version v3.3
... 360=MAPCA(s) (major aortopulmonary collateral[s]) (without PA-VSD) ...
... 360=MAPCA(s) (major aortopulmonary collateral[s]) (without PA-VSD) ...
The Hypertrophic Cardiomyopathy Program
... it usually affects the left ventricle (the main pumping chamber). The muscle fibers of the heart thicken, making it harder for the heart to relax and let new blood into the chambers. Because the heart can’t fill completely, it cannot send enough blood to the rest of the body during exercise. ...
... it usually affects the left ventricle (the main pumping chamber). The muscle fibers of the heart thicken, making it harder for the heart to relax and let new blood into the chambers. Because the heart can’t fill completely, it cannot send enough blood to the rest of the body during exercise. ...
Pericardial Disease
... the heart and proximal portions of the great vessels. The inner layer, the visceral pericardium, is a thin serosal membrane formed by a single layer of mesothelial cells. This layer reflects back on itself to line the outer layer, the parietal pericardium—a thick, fibrous structure providing mechani ...
... the heart and proximal portions of the great vessels. The inner layer, the visceral pericardium, is a thin serosal membrane formed by a single layer of mesothelial cells. This layer reflects back on itself to line the outer layer, the parietal pericardium—a thick, fibrous structure providing mechani ...
Print - Circulation
... supply should be considered functional or nutritive. These vessels are generally reported as a compensatory dilatation or hypertrophy of bronchial arteries."-14 Stenosis of the collateral vessels may be visualized by angiocardiography,"-21 but their morphologic substrate is unknown. Finally, some pa ...
... supply should be considered functional or nutritive. These vessels are generally reported as a compensatory dilatation or hypertrophy of bronchial arteries."-14 Stenosis of the collateral vessels may be visualized by angiocardiography,"-21 but their morphologic substrate is unknown. Finally, some pa ...
His Bundle Electrocardiography
... dowl. the posterior fascicle and persistent block in the anterior fascicle. In addition, the initiating QRS complex of the bidirectional tachycardia followed a pause in the normal rhythm and demonstrated right bundle block and left anterior hemiblock over 80% of the time. These observations are cons ...
... dowl. the posterior fascicle and persistent block in the anterior fascicle. In addition, the initiating QRS complex of the bidirectional tachycardia followed a pause in the normal rhythm and demonstrated right bundle block and left anterior hemiblock over 80% of the time. These observations are cons ...
The role of NT-proBNP in the diagnostics of isolated diastolic
... function is attributed to diastolic dysfunction. More than one-third of patients presenting with symptoms and signs of congestive heart failure (CHF) have isolated diastolic dysfunction, which is associated with a poor prognosis.1,2 Clinical examination cannot distinguish between systolic and diasto ...
... function is attributed to diastolic dysfunction. More than one-third of patients presenting with symptoms and signs of congestive heart failure (CHF) have isolated diastolic dysfunction, which is associated with a poor prognosis.1,2 Clinical examination cannot distinguish between systolic and diasto ...
- The Journal of Thoracic and Cardiovascular Surgery
... Blood Values and Ventricular Pressures The values of hematocrit, hemoglobin, red blood cells, mean red cell volume, arterial PO2, PCO2, O2 saturation, and pH, amount of ingested food and water per day, and final body and heart weights obtained at the end of the 2 weeks of observation are reported in ...
... Blood Values and Ventricular Pressures The values of hematocrit, hemoglobin, red blood cells, mean red cell volume, arterial PO2, PCO2, O2 saturation, and pH, amount of ingested food and water per day, and final body and heart weights obtained at the end of the 2 weeks of observation are reported in ...
Lutembacher's syndrome
Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑