ASE 2017 - ASE Scientific Sessions
... Medical Education and Research, all rights reserved. the mitral valve and the pulmonary veins are baffled to the tricuspid valve, was the first operative procedure for TGA that resulted in acceptable operative and midterm survival.11-13 Although the AtrSO achieved widespread success from the mid-196 ...
... Medical Education and Research, all rights reserved. the mitral valve and the pulmonary veins are baffled to the tricuspid valve, was the first operative procedure for TGA that resulted in acceptable operative and midterm survival.11-13 Although the AtrSO achieved widespread success from the mid-196 ...
What Do You Mean by Aortic Valve Area: Geometric Orifice Area
... between Doppler echocardiography and catheterization is mostly related to the aortic cross-sectional area (see Eqn. (11)), whereas the difference between Doppler echocardiography and planimetry is essentially dependent upon the valve geometry (see Eqn. (7)). Because these anatomic characteristics va ...
... between Doppler echocardiography and catheterization is mostly related to the aortic cross-sectional area (see Eqn. (11)), whereas the difference between Doppler echocardiography and planimetry is essentially dependent upon the valve geometry (see Eqn. (7)). Because these anatomic characteristics va ...
BiPACS Accomplishments - UCLA Department of Surgery
... Premise: Nuances of temporary pacing are being lost in the face of powerful tools for pharmacologic and mechanical support. This predetermines increased dependence on these tools, increased costs, and an increase in related complications. ...
... Premise: Nuances of temporary pacing are being lost in the face of powerful tools for pharmacologic and mechanical support. This predetermines increased dependence on these tools, increased costs, and an increase in related complications. ...
Role of Endothelium in the Maintenance of Low Pulmonary Vascular
... resting pulmonary vascular tone is mediated in part by the release of NO.2-5 This is the first study in humans on the effects of inhibition of NO synthesis in the pulmonary circulation. NO is a potent vasodilator, and our observations suggest that its continuous release from pulmonary endothelium pl ...
... resting pulmonary vascular tone is mediated in part by the release of NO.2-5 This is the first study in humans on the effects of inhibition of NO synthesis in the pulmonary circulation. NO is a potent vasodilator, and our observations suggest that its continuous release from pulmonary endothelium pl ...
Assessment of Diastolic Hemodynamics by Analyzing Left
... and associated myocardial fibrosis in the development of diastolic dysfunction, we considered that it was meaningful to assess the relation between diastolic hemodynamics and cardiac alterations or geometric remodeling in patients with hypertension. In the present study, we used LVDd, LVMI, and RWT ...
... and associated myocardial fibrosis in the development of diastolic dysfunction, we considered that it was meaningful to assess the relation between diastolic hemodynamics and cardiac alterations or geometric remodeling in patients with hypertension. In the present study, we used LVDd, LVMI, and RWT ...
Management of Acute Right Ventricular Failure in the
... function, and may help elucidate possible precipitating factors for RV failure, including LV dysfunction and valvular heart disease. RV systolic function can be assessed by measuring the longitudinal systolic displacement of the RV base toward the RV apex. This is commonly referred to as the tricusp ...
... function, and may help elucidate possible precipitating factors for RV failure, including LV dysfunction and valvular heart disease. RV systolic function can be assessed by measuring the longitudinal systolic displacement of the RV base toward the RV apex. This is commonly referred to as the tricusp ...
NORMAL VARIATIONS AND THE INTERRELATIONS BETWEEN
... arteriolar resistance to blood flow in the lungs is small. As seen in Table I, pulmonary arteriolar resistance averaged 67 dynes seconds cm.-5 (15). In several recent publications (10, 16, 17) pulmonary vascular resistance has been calculated assuming an arbitrary figure for pressure in the left Com ...
... arteriolar resistance to blood flow in the lungs is small. As seen in Table I, pulmonary arteriolar resistance averaged 67 dynes seconds cm.-5 (15). In several recent publications (10, 16, 17) pulmonary vascular resistance has been calculated assuming an arbitrary figure for pressure in the left Com ...
Ventricular Dysrhythmias (Fast and Easy ECGs, Shade / Wesley)
... appearance varies considerably from complex to complex. • Ventricular fibrillation (VF) results from chaotic firing of multiple sites in the ventricles causing the heart muscle to quiver rather than contracting efficiently, producing an absence of effective muscular contraction and cardiac output. ...
... appearance varies considerably from complex to complex. • Ventricular fibrillation (VF) results from chaotic firing of multiple sites in the ventricles causing the heart muscle to quiver rather than contracting efficiently, producing an absence of effective muscular contraction and cardiac output. ...
The Fontan circulation: who controls cardiac output?
... administration of diuretics. Systemic venous pressure, therefore, cannot be an important factor of output regulation at rest. At mild to moderate levels of exercise, invasive studies in normal subjects over a wide age range have shown that the mean pulmonary artery (PA) pressure rarely exceeds 25 mm ...
... administration of diuretics. Systemic venous pressure, therefore, cannot be an important factor of output regulation at rest. At mild to moderate levels of exercise, invasive studies in normal subjects over a wide age range have shown that the mean pulmonary artery (PA) pressure rarely exceeds 25 mm ...
Pro: An Incidental PFO Should Be Repaired When Discovered
... could theoretically be due to PFO each year. A PFO can allow microemboli to traverse into the left heart and enter the cerebral circulation. Deep vein thrombosis and clotting deficiencies can potentially increase this risk. Government statistics show that the mean lifetime cost of ischemic stroke is ...
... could theoretically be due to PFO each year. A PFO can allow microemboli to traverse into the left heart and enter the cerebral circulation. Deep vein thrombosis and clotting deficiencies can potentially increase this risk. Government statistics show that the mean lifetime cost of ischemic stroke is ...
Heart and Vascular System Practice Questions
... 85. If blood pressure increases above normal, the response from the medulla oblongata will be to A. increase heart rate and dilate the arterioles. B. increase heart rate and constrict the arterioles. C. decrease heart rate and dilate the arterioles. D. decrease heart rate and constrict the arteriol ...
... 85. If blood pressure increases above normal, the response from the medulla oblongata will be to A. increase heart rate and dilate the arterioles. B. increase heart rate and constrict the arterioles. C. decrease heart rate and dilate the arterioles. D. decrease heart rate and constrict the arteriol ...
Rapid Ventricular Transvenous Pacing via Pulmonary Artery
... 5 mmHg). One intraoperative death occurred in a patient with severe valvular heart disease. In all other cases, recovery time to baseline hemodynamics was short. Postoperative complications included atrial fibrillation in five patients (12%), elevated troponin levels in eight (21%), and stroke in th ...
... 5 mmHg). One intraoperative death occurred in a patient with severe valvular heart disease. In all other cases, recovery time to baseline hemodynamics was short. Postoperative complications included atrial fibrillation in five patients (12%), elevated troponin levels in eight (21%), and stroke in th ...
the relationship between electrical and mechanical - Heart
... in the cardiac cycle has been of fundamental importance. The basic concepts of this relationship have been defined by Lewis (1925) and Wiggers (1923) and their co-workers. Sir Thomas Lewis provided indirect information on these events in the right auricle of man. Animal experiments, supplemented by ...
... in the cardiac cycle has been of fundamental importance. The basic concepts of this relationship have been defined by Lewis (1925) and Wiggers (1923) and their co-workers. Sir Thomas Lewis provided indirect information on these events in the right auricle of man. Animal experiments, supplemented by ...
Endocardial Notch Signaling in Cardiac Development and Disease
... was primarily thought as a physical barrier serving to regulate vascular permeability between blood and subjacent cardiac muscle. However, the importance of the endocardium as a crucial regulator of adult cardiac function derives essentially from its ability to adjust heart pumping to hemodynamic an ...
... was primarily thought as a physical barrier serving to regulate vascular permeability between blood and subjacent cardiac muscle. However, the importance of the endocardium as a crucial regulator of adult cardiac function derives essentially from its ability to adjust heart pumping to hemodynamic an ...
National Medical Policy
... cardiac structure and function. One of the significant advances in this field has been the development and refinement of three-dimensional (3D) imaging. Real-time three-dimensional (3D) echocardiography allows for rapid acquisition of images and datasets during a single breath-hold without the need ...
... cardiac structure and function. One of the significant advances in this field has been the development and refinement of three-dimensional (3D) imaging. Real-time three-dimensional (3D) echocardiography allows for rapid acquisition of images and datasets during a single breath-hold without the need ...
Coexistence of sudden cardiac death and end-stage heart
... cases with hypertrophic cardiomyopathy, evaluated at the National Heart, Lung, and Blood Institute, were selected for the present study on the basis of the following criteria : 1) hypertrophic cardiomyopathy was documented in relatives in two or more generations ; 2) at least one relative had died s ...
... cases with hypertrophic cardiomyopathy, evaluated at the National Heart, Lung, and Blood Institute, were selected for the present study on the basis of the following criteria : 1) hypertrophic cardiomyopathy was documented in relatives in two or more generations ; 2) at least one relative had died s ...
Pulmonary Venous and Arterial Hypertension due
... associates22 have studied the venous collateral circulation in dogs following pulmonary venous ligation and have shown that collateral veins drain into the azygos system via pleural adhesions and return blood to the right heart. This collateral system is capable of carrying up to 20% of the flow of ...
... associates22 have studied the venous collateral circulation in dogs following pulmonary venous ligation and have shown that collateral veins drain into the azygos system via pleural adhesions and return blood to the right heart. This collateral system is capable of carrying up to 20% of the flow of ...
Unusual RighttoLeft Shunt by SingleSided Bilateral Inferior Vena Cava
... first to have been diagnosed with IVC duplication single sided and we agreed with previous reports.7 Previous study described long-term survival of a patient with left atrial connecting inferior vena cava with no anatomic intracardiac shunt.12 Nevertheless, surgical or interventional correction of th ...
... first to have been diagnosed with IVC duplication single sided and we agreed with previous reports.7 Previous study described long-term survival of a patient with left atrial connecting inferior vena cava with no anatomic intracardiac shunt.12 Nevertheless, surgical or interventional correction of th ...
Dobutamine Increases Cardiac Output
... Philip F. Binkley, MD; Kevin D. Murray, MD; Kim M. Watson, BS; P. David Myerowitz, MD; and Carl V. Leier, MD ...
... Philip F. Binkley, MD; Kevin D. Murray, MD; Kim M. Watson, BS; P. David Myerowitz, MD; and Carl V. Leier, MD ...
Peri-operative Cardiac Arrhythmias
... Life-threatening cardiovascular events under anaesthesia are uncommon. However, adverse cardiovascular events occurring during and after the emergence of anaesthesia occur more frequently. Although the incidence is higher during cardiac surgery, intra-operative dysrrhythmias affect up to 29% of pati ...
... Life-threatening cardiovascular events under anaesthesia are uncommon. However, adverse cardiovascular events occurring during and after the emergence of anaesthesia occur more frequently. Although the incidence is higher during cardiac surgery, intra-operative dysrrhythmias affect up to 29% of pati ...
The main pulmonary artery in adults: a controlled multicenter study
... media degeneration [43]. Some “idiopathic” MPA aneurysms may form without any of these causes [20,23,44]. MPA aneurysms are usually asymptomatic but they may lead to symptoms from right heart failure secondary to pulmonary regurgitation or from compression of the trachea or bronchi, or from pulmonar ...
... media degeneration [43]. Some “idiopathic” MPA aneurysms may form without any of these causes [20,23,44]. MPA aneurysms are usually asymptomatic but they may lead to symptoms from right heart failure secondary to pulmonary regurgitation or from compression of the trachea or bronchi, or from pulmonar ...
the carotid pulse i: diagnosis of aortic stenosis by external
... typical pulse of severe aortic stenosis: there is no initial rapid rise, vibrations may be absent, and the upstroke is either straight or has a shoulder half way up. ...
... typical pulse of severe aortic stenosis: there is no initial rapid rise, vibrations may be absent, and the upstroke is either straight or has a shoulder half way up. ...
1 General IntroductIon Pulmonary arterIal
... a useful tool in pulmonary hypertension research in rats, especially when used in combination with echocardiography. We conclude that the described trans-diaphragm approach should be considered as the method of choice, for it is less invasive and simpler to perform. ...
... a useful tool in pulmonary hypertension research in rats, especially when used in combination with echocardiography. We conclude that the described trans-diaphragm approach should be considered as the method of choice, for it is less invasive and simpler to perform. ...
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.