Asymptomatic Aortic Stenosis-Prognosis, Risk Stratification and
... 2.9 Cardiac multislice computed tomography and cardiac magnetic resonance Although limited by the exposure to radiation, its availibity and its use in patients with high heart rate or atrial fibrillation, multislice computed tomography (MSCT) may be helpful in certain clinical situations in patients ...
... 2.9 Cardiac multislice computed tomography and cardiac magnetic resonance Although limited by the exposure to radiation, its availibity and its use in patients with high heart rate or atrial fibrillation, multislice computed tomography (MSCT) may be helpful in certain clinical situations in patients ...
Left ventricular diastolic collapse in regional left heart
... Normal saline solution was infused into the left pericardial compartment at 5-ml intervals . Repeat hemodynamic and echocardiographic measurements were obtained at each period . The onset of left ventricular diastolic collapse, defined as a discrete, transient, inward motion of the left ventricular ...
... Normal saline solution was infused into the left pericardial compartment at 5-ml intervals . Repeat hemodynamic and echocardiographic measurements were obtained at each period . The onset of left ventricular diastolic collapse, defined as a discrete, transient, inward motion of the left ventricular ...
Roderick Tung, Noel G. Boyle and Kalyanam Shivkumar 2011;123:2284-2288 doi: 10.1161/CIRCULATIONAHA.110.989079
... entricular tachycardia (VT) most commonly develops in patients with structural heart disease. Myocardial infarction results in collagen replacement interspersed with surviving myocardium, which alters impulse propagation, facilitating re-entry. 1 Aside from the postinfarction substrate, scar-mediate ...
... entricular tachycardia (VT) most commonly develops in patients with structural heart disease. Myocardial infarction results in collagen replacement interspersed with surviving myocardium, which alters impulse propagation, facilitating re-entry. 1 Aside from the postinfarction substrate, scar-mediate ...
Perioperative right ventricular dysfunction
... result in pulmonary hypertension due to mitral regurgitation. Mitral regurgitation could be secondary to ischemia [36] or from left ventricular outflow tract obstruction [37]. Both conditions cause postcapillary pulmonary hypertension, but will have completely different medical or surgical managemen ...
... result in pulmonary hypertension due to mitral regurgitation. Mitral regurgitation could be secondary to ischemia [36] or from left ventricular outflow tract obstruction [37]. Both conditions cause postcapillary pulmonary hypertension, but will have completely different medical or surgical managemen ...
Chapter 13 The Heart and Heart Disease
... – Semilunar (SL) valves • Pulmonary semilunar: at the beginning of the pulmonary artery • Aortic semilunar: at the beginning of the aorta ...
... – Semilunar (SL) valves • Pulmonary semilunar: at the beginning of the pulmonary artery • Aortic semilunar: at the beginning of the aorta ...
Chapter 13 The Heart and Heart Disease
... – Semilunar (SL) valves • Pulmonary semilunar: at the beginning of the pulmonary artery • Aortic semilunar: at the beginning of the aorta ...
... – Semilunar (SL) valves • Pulmonary semilunar: at the beginning of the pulmonary artery • Aortic semilunar: at the beginning of the aorta ...
the left atrium in hypertension: a symbol of mortality and morbidity?
... usually associated with left atrial enlargement beyond the upper limit of the normal range [18]. In contrast, there is reduced elastic recoil after chronic atrial distension, resulting in only limited change in size with any changes in left atrial pressure. Furthermore, left atrial enlargement is fr ...
... usually associated with left atrial enlargement beyond the upper limit of the normal range [18]. In contrast, there is reduced elastic recoil after chronic atrial distension, resulting in only limited change in size with any changes in left atrial pressure. Furthermore, left atrial enlargement is fr ...
PDF - Romanian Journal of Cardiology
... remains constant in healthy individuals, in patients with PH and even after treatment of PH11,12.This means that in the early stage of PH, a small increase in pulmonary vascular resistance (PVR) leads to a large decrease in compliance, whereas in later stages, larger increases in PVR lead to only mo ...
... remains constant in healthy individuals, in patients with PH and even after treatment of PH11,12.This means that in the early stage of PH, a small increase in pulmonary vascular resistance (PVR) leads to a large decrease in compliance, whereas in later stages, larger increases in PVR lead to only mo ...
Left ventricular hypertrophy in athletes
... exercising muscle for aerobic glycolysis, respectively. An increase in cardiac size is fundamental to the ability to generate a large stroke volume. Over the past three decades, the athlete’s heart has been the subject of several echocardiographic studies involving many thousands of athletes.1–5 Mos ...
... exercising muscle for aerobic glycolysis, respectively. An increase in cardiac size is fundamental to the ability to generate a large stroke volume. Over the past three decades, the athlete’s heart has been the subject of several echocardiographic studies involving many thousands of athletes.1–5 Mos ...
EP Publications: 2008-2013 (papers/abstracts/posters)
... patients with acute right ventricular infarction undergoing mechanical reperfusion. Am J Cardiol ...
... patients with acute right ventricular infarction undergoing mechanical reperfusion. Am J Cardiol ...
the Frank-Starling Mechanism
... T o improve myocardial contractility, several compensatory mechanisms can be activated; one of these is the Frank-Starling mechanism, in which an increased preload enhances contractile force. In the nonfailing heart, an increase of the diastolic volume of the heart is associated with an improvement ...
... T o improve myocardial contractility, several compensatory mechanisms can be activated; one of these is the Frank-Starling mechanism, in which an increased preload enhances contractile force. In the nonfailing heart, an increase of the diastolic volume of the heart is associated with an improvement ...
CONSTRICTIVE PERICARDITIS
... catheters in a patient with constrictive pericarditis (left panel) and in a patient with restrictive cardiomyopathy (right panel). Peak inspiration is indicated in beat 2 in each cardiac cycle. In the patient with constrictive pericarditis (left panel), there is a discordant change in left and right ...
... catheters in a patient with constrictive pericarditis (left panel) and in a patient with restrictive cardiomyopathy (right panel). Peak inspiration is indicated in beat 2 in each cardiac cycle. In the patient with constrictive pericarditis (left panel), there is a discordant change in left and right ...
Scientech 2138A AT Manual
... through the superior vena cava and inferior vena cava. The atrium fills with blood and then contracts, squeezing the blood through the tricuspid valve into the right ventricle. After the ventricle is filled, pressure forces the tricuspid valve to close and the pulmonic valve, leading to the pulmonar ...
... through the superior vena cava and inferior vena cava. The atrium fills with blood and then contracts, squeezing the blood through the tricuspid valve into the right ventricle. After the ventricle is filled, pressure forces the tricuspid valve to close and the pulmonic valve, leading to the pulmonar ...
Edwards, Daniel - Cardiff Metropolitan University
... exercise (Maron, 1986). This hypertrophy of the myocardium allows for increased maximal stroke volume (SV ) and cardiac output (Q), both of which increase the ability of the heart to deliver more oxygen to the working muscles (Sharma et al., 2002). It is a widely accepted concept that different exer ...
... exercise (Maron, 1986). This hypertrophy of the myocardium allows for increased maximal stroke volume (SV ) and cardiac output (Q), both of which increase the ability of the heart to deliver more oxygen to the working muscles (Sharma et al., 2002). It is a widely accepted concept that different exer ...
EXPERIMENTAL & CLINICAL CARDIOLOGY
... All our presented cases have diagnosed left ventricular hypertrophy by echocardiography. Recently, an algorithm has been proposed in order to detect conditions with increased risk for sudden cardiac death [9]. The initial step is detailed history with focus on palpitations, chest pain, dyspnoe and s ...
... All our presented cases have diagnosed left ventricular hypertrophy by echocardiography. Recently, an algorithm has been proposed in order to detect conditions with increased risk for sudden cardiac death [9]. The initial step is detailed history with focus on palpitations, chest pain, dyspnoe and s ...
Sildenafil attenuates pulmonary arterial pressure but - UvA-DARE
... attenuation of pulmonary arterial pressures and pulmonary vascular resistance, and to a lesser degree of systemic arterial pressures and resistance. However, the observed profound increase in shunt fraction, as well as a marked decrease of PaO2, may render sildenafil unsuitable for the treatment of ...
... attenuation of pulmonary arterial pressures and pulmonary vascular resistance, and to a lesser degree of systemic arterial pressures and resistance. However, the observed profound increase in shunt fraction, as well as a marked decrease of PaO2, may render sildenafil unsuitable for the treatment of ...
Fibrosing mediastinitis as a rare mechanism of pulmonary oedema in sarcoidosis
... SCHOWENGERDT et al. [11]. Clinical manifestations include cough, progressive respiratory distress and haemoptysis. This pattern of symptoms has been called the ‘‘the pseudomitral stenosis syndrome’’ [1]. Pulmonary venous obstruction occurs gradually, so the symptoms may be delayed and the diagnosis ...
... SCHOWENGERDT et al. [11]. Clinical manifestations include cough, progressive respiratory distress and haemoptysis. This pattern of symptoms has been called the ‘‘the pseudomitral stenosis syndrome’’ [1]. Pulmonary venous obstruction occurs gradually, so the symptoms may be delayed and the diagnosis ...
Assessment of systolic and diastolic ventricular properties - AJP
... change in Vo (Fig. 2) (81). Conversely, with negative inotropic agents (e.g., acute -blockade, high-dose calcium channel blockers), Ees was shown to decrease, again with relatively little influence on Vo. Appropriate changes in Ees are also observed when heart rate is varied (the so called force-fr ...
... change in Vo (Fig. 2) (81). Conversely, with negative inotropic agents (e.g., acute -blockade, high-dose calcium channel blockers), Ees was shown to decrease, again with relatively little influence on Vo. Appropriate changes in Ees are also observed when heart rate is varied (the so called force-fr ...
3D anatomical modelling of the human cardiac conduction system
... 3) KCa1.1 appears to be more highly expressed in the sinus node than atrial muscle at both the mRNA and protein level. Discussion. This study demonstrates that it is possible to create a 3D anatomical reconstruction of the human heart based on serial sections of the entire human heart. This 3D compu ...
... 3) KCa1.1 appears to be more highly expressed in the sinus node than atrial muscle at both the mRNA and protein level. Discussion. This study demonstrates that it is possible to create a 3D anatomical reconstruction of the human heart based on serial sections of the entire human heart. This 3D compu ...
normal children - Heart
... and wall dynamics has previously been shown in the (Table 2), and was unaffected either by heart rate or absolute wall thickness. Left ventricular short axis architecture, described simply in terms of ratio of wall secondary to regional differences in left ventricular thickness to cavity radius, or ...
... and wall dynamics has previously been shown in the (Table 2), and was unaffected either by heart rate or absolute wall thickness. Left ventricular short axis architecture, described simply in terms of ratio of wall secondary to regional differences in left ventricular thickness to cavity radius, or ...
Dehydroepiandrosterone reverses chronic hypoxia/reoxygenation-induced right ventricular dysfunction in rats
... DHEA abolished right ventricle diastolic dysfunction, as the echographic E wave remained close to that of controls (mean¡SD 76.5¡2.4 and 79.7¡1.7 cm?s-1, respectively), whereas it was diminished to 40.3¡3.7 in the recovery group. DHEA also abolished right ventricle systolic dysfunction, as shown by ...
... DHEA abolished right ventricle diastolic dysfunction, as the echographic E wave remained close to that of controls (mean¡SD 76.5¡2.4 and 79.7¡1.7 cm?s-1, respectively), whereas it was diminished to 40.3¡3.7 in the recovery group. DHEA also abolished right ventricle systolic dysfunction, as shown by ...
normal children - Heart
... and wall dynamics has previously been shown in the (Table 2), and was unaffected either by heart rate or absolute wall thickness. Left ventricular short axis architecture, described simply in terms of ratio of wall secondary to regional differences in left ventricular thickness to cavity radius, or ...
... and wall dynamics has previously been shown in the (Table 2), and was unaffected either by heart rate or absolute wall thickness. Left ventricular short axis architecture, described simply in terms of ratio of wall secondary to regional differences in left ventricular thickness to cavity radius, or ...
The design of an artificial ventricle and its power and control systems
... The actual blood pressure at any point in the circu latory system is determined by several factors: 1) the amount of blood in the circulatory system; 2) the pumping activity of the heart; 3) a vessel's resistance to blood flow; and 4) blood density and viscosity. Another term which will be of impor ...
... The actual blood pressure at any point in the circu latory system is determined by several factors: 1) the amount of blood in the circulatory system; 2) the pumping activity of the heart; 3) a vessel's resistance to blood flow; and 4) blood density and viscosity. Another term which will be of impor ...
PDF - Circulation: Cardiovascular Imaging
... myocardial energy consumption directly. Regional myocardial work, however, constitutes a more complete assessment of myocardial function. Methods and Results—Strain was measured using high-resolution phase-contrast MRI in 9 adult male rats with myocardial infarction (MI) and in 5 sham-operated contr ...
... myocardial energy consumption directly. Regional myocardial work, however, constitutes a more complete assessment of myocardial function. Methods and Results—Strain was measured using high-resolution phase-contrast MRI in 9 adult male rats with myocardial infarction (MI) and in 5 sham-operated contr ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.