the blood flow in the right atrium and superior vena - Heart
... blood from the great veins to the atrium occurs during ventricular systole and descent of the base of the heart; this forward flow correlates with the drop in atrial pressure (x descent) found in this part of the cardiac cycle. The blood flow stops, or even becomes momentarily reversed, at the time ...
... blood from the great veins to the atrium occurs during ventricular systole and descent of the base of the heart; this forward flow correlates with the drop in atrial pressure (x descent) found in this part of the cardiac cycle. The blood flow stops, or even becomes momentarily reversed, at the time ...
28 Ejection Clicks
... by the mitral or tricuspid valve apparatus . These clicks usually occur in mid to late systole and appear to be related to tensing of the chordae tendineae or valve leaflets when mitral or tricuspid valve prolapse is present . These clicks are often multiple and are quite variable in their timing, b ...
... by the mitral or tricuspid valve apparatus . These clicks usually occur in mid to late systole and appear to be related to tensing of the chordae tendineae or valve leaflets when mitral or tricuspid valve prolapse is present . These clicks are often multiple and are quite variable in their timing, b ...
How to do It : Closed Mitral Commissurotomy
... or injure the subvalvular apparatus; complete closure of the dilator before removal; assess any mitral regurgitation with the index finger before removal; and preventing air from entering the LA. Conversion to the open technique must also be considered if warranted. In view of the young age of patie ...
... or injure the subvalvular apparatus; complete closure of the dilator before removal; assess any mitral regurgitation with the index finger before removal; and preventing air from entering the LA. Conversion to the open technique must also be considered if warranted. In view of the young age of patie ...
Congenitally corrected transposition of the great arteries: clues for
... The pulmonary trunk had a smaller caliber than the aorta (3.4 vs. 4.1 mm), suggesting possible pulmonary stenosis, but peak velocity across the pulmonary valve was 105 cm/s, within the normal range, with no turbulent flow. No arrhythmia was documented during the course of the pregnancy. There was pe ...
... The pulmonary trunk had a smaller caliber than the aorta (3.4 vs. 4.1 mm), suggesting possible pulmonary stenosis, but peak velocity across the pulmonary valve was 105 cm/s, within the normal range, with no turbulent flow. No arrhythmia was documented during the course of the pregnancy. There was pe ...
Mitral inertance in humans: critical factor in Doppler - AJP
... through the valve; 3) viscous, which relates the pressure loss because of viscous drag along the walls; and 4) gravitational, which relates to the effects of gravitational vector forces (10). For most stenotic and regurgitant orifices of clinical relevance, the inertial, viscous, and gravitational c ...
... through the valve; 3) viscous, which relates the pressure loss because of viscous drag along the walls; and 4) gravitational, which relates to the effects of gravitational vector forces (10). For most stenotic and regurgitant orifices of clinical relevance, the inertial, viscous, and gravitational c ...
Chapter 19 Lecture Outline
... them with its internal four-chambered anatomy. – Identify the four valves of the heart. – Trace the flow of blood through the four chambers and valves of the heart and adjacent blood vessels. – Describe the arteries that nourish the myocardium and the veins that drain it. ...
... them with its internal four-chambered anatomy. – Identify the four valves of the heart. – Trace the flow of blood through the four chambers and valves of the heart and adjacent blood vessels. – Describe the arteries that nourish the myocardium and the veins that drain it. ...
Internal Medicine Board Review (from MKSAP 13)
... Pregnant cyanotic women have a high risk of fetal loss. Cyanosis is a recognized handicap to fetal growth, resulting in low birth weigh infants The incidence of congenital heart disease in offspring of women with congenital heart disease is about 5 %. ...
... Pregnant cyanotic women have a high risk of fetal loss. Cyanosis is a recognized handicap to fetal growth, resulting in low birth weigh infants The incidence of congenital heart disease in offspring of women with congenital heart disease is about 5 %. ...
Congenital coronary artery dilatation
... three patients. Moreover, in two out of our three patients, the lesion was detected soon after birth. The natural history of these lesions is not fully known. It is very likely that these patients have an increased risk of ischaemic coronary disease. On the other hand, bicuspid aortic valve is one o ...
... three patients. Moreover, in two out of our three patients, the lesion was detected soon after birth. The natural history of these lesions is not fully known. It is very likely that these patients have an increased risk of ischaemic coronary disease. On the other hand, bicuspid aortic valve is one o ...
Myxomatous mitral valve disease in dogs
... mitral valve, the whole heart undergoes changes that cause its remodeling. The triggering event of these geometrical and structural changes is the increase of end-diastolic pressure and hence end-diastolic wall stress due to the volume overload (19). The leaking valve causes regurgitation of the str ...
... mitral valve, the whole heart undergoes changes that cause its remodeling. The triggering event of these geometrical and structural changes is the increase of end-diastolic pressure and hence end-diastolic wall stress due to the volume overload (19). The leaking valve causes regurgitation of the str ...
D7-1 UNIT 7. DISSECTION: HEART STRUCTURES TO IDENTIFY
... in the anterior and posterior walls of the atrium. The posterior wall is smooth; this is the sinus venarum and is continuous with the two venae cava. The anterior wall is rough with the pectinate muscles, which contribute to its strength in contraction. The two walls are joined at a ridge, the cris ...
... in the anterior and posterior walls of the atrium. The posterior wall is smooth; this is the sinus venarum and is continuous with the two venae cava. The anterior wall is rough with the pectinate muscles, which contribute to its strength in contraction. The two walls are joined at a ridge, the cris ...
Congenital Corrected Transposition of the Great Vessels in a 58
... arises posteriorly in relation to the aorta instead of its normal anterior position. The arterial oxygenated blood returning from the lungs reaches a normal left atrium, crosses a "tricuspid" left-sided valve, and reaches the "arterial" ventricle. Blood is then ejected into the aorta, which is abnor ...
... arises posteriorly in relation to the aorta instead of its normal anterior position. The arterial oxygenated blood returning from the lungs reaches a normal left atrium, crosses a "tricuspid" left-sided valve, and reaches the "arterial" ventricle. Blood is then ejected into the aorta, which is abnor ...
International - Congenital Cardiology Today
... trans-catheter interventions are performed for patients with congenital and structural heart disease. Herein, we will describe our experience Angiography of congenital cardiac anomalies has to date with this new imaging modality and use been somewhat limited since its inception by the several cases ...
... trans-catheter interventions are performed for patients with congenital and structural heart disease. Herein, we will describe our experience Angiography of congenital cardiac anomalies has to date with this new imaging modality and use been somewhat limited since its inception by the several cases ...
A Patient`s Guide to the Non-surgical Closure of an Atrial Septal Defect
... patient ID card just in case you encounter difficulties while traveling. Though some patients worry about airport security systems, there is really no need for concern. The metal parts in AMPLATZER occlusion devices are very small and usually do not trigger metal detector alarms. However, the sensit ...
... patient ID card just in case you encounter difficulties while traveling. Though some patients worry about airport security systems, there is really no need for concern. The metal parts in AMPLATZER occlusion devices are very small and usually do not trigger metal detector alarms. However, the sensit ...
S2 File.
... therapeutic option during the last decade(1). During Transcatheter Aortic Valve Implantation (TAVI) a catheter holding the compacted replacement valve is inserted into a peripheral artery and positioned within the aortic valve level. The catheter-system also contains a balloon that pushes the leafle ...
... therapeutic option during the last decade(1). During Transcatheter Aortic Valve Implantation (TAVI) a catheter holding the compacted replacement valve is inserted into a peripheral artery and positioned within the aortic valve level. The catheter-system also contains a balloon that pushes the leafle ...
Who Discovered the Frank-Starling Mechanism?
... that resulted in the diastolic pressure curve as well as in the curves of the isovolumetric and isotonic maxima. Subsequently, he was more concerned with methodological problems, such as the construction of manometers and the careful mathematical analysis of pressure curves recorded in the cardiovas ...
... that resulted in the diastolic pressure curve as well as in the curves of the isovolumetric and isotonic maxima. Subsequently, he was more concerned with methodological problems, such as the construction of manometers and the careful mathematical analysis of pressure curves recorded in the cardiovas ...
Arbitrary Lagrangian-Eulerian Finite Element Modelling of the
... impulses, the rate of which is controlled by the autonomic nervous system. By contracting and expanding periodically the function of the heart is to pump blood through the body circulation system. The pumping capacity is around ve litres per minute for an average adult human and can go up to 35 lit ...
... impulses, the rate of which is controlled by the autonomic nervous system. By contracting and expanding periodically the function of the heart is to pump blood through the body circulation system. The pumping capacity is around ve litres per minute for an average adult human and can go up to 35 lit ...
Document
... systemic oedema and JVP elevation, because even a modest increase in right atrial pressure from the initial Na+ retention will increase right ventricular end-diastolic pressure, and hence maintain the output of the normal right ventricle. The corollary is that whilst the right heart is functioning n ...
... systemic oedema and JVP elevation, because even a modest increase in right atrial pressure from the initial Na+ retention will increase right ventricular end-diastolic pressure, and hence maintain the output of the normal right ventricle. The corollary is that whilst the right heart is functioning n ...
Who Discovered the Frank-Starling Mechanism?
... a manometer. It was a working heart preparation with recirculation. The primary aim was to study the effect of temperature on the frequency and contraction of the heart. It was observed that a certain degree of filling of the ventricle was necessary for the heart to produce a sufficient ejection vol ...
... a manometer. It was a working heart preparation with recirculation. The primary aim was to study the effect of temperature on the frequency and contraction of the heart. It was observed that a certain degree of filling of the ventricle was necessary for the heart to produce a sufficient ejection vol ...
Nonsurgical pulmonary valve replacement: Why, when, and how?
... inherent advantages to patients and the medical community alike. There have been various developments in the designs of implantable valves and systems to deploy them through percutaneous route with variable success [4,8,9]. Most of these developments are designs for treatment of semilunar valve regu ...
... inherent advantages to patients and the medical community alike. There have been various developments in the designs of implantable valves and systems to deploy them through percutaneous route with variable success [4,8,9]. Most of these developments are designs for treatment of semilunar valve regu ...
Phys Chapter 9 [4-20
... o An indentation happens in the aortic pressure curve when the aortic valve closes This is caused by a short period of backward flow of blood immediately before closing of the valve, followed by a sudden stop in backflow o After the aortic valve has closed, the pressure in the aorta decreases slow ...
... o An indentation happens in the aortic pressure curve when the aortic valve closes This is caused by a short period of backward flow of blood immediately before closing of the valve, followed by a sudden stop in backflow o After the aortic valve has closed, the pressure in the aorta decreases slow ...
Mitral Valve Prolapse and Borderline Hypertension
... N recent years idiopathic mitral valve prolapse (IMVP) has become an increasingly common finding occurring in 5 to 20% of apparently healthy people.1'2 The prolapse may be idiopathic3 or associated with a wide variety of underlying conditions.312 Some authors have observed abnormal patterns of left ...
... N recent years idiopathic mitral valve prolapse (IMVP) has become an increasingly common finding occurring in 5 to 20% of apparently healthy people.1'2 The prolapse may be idiopathic3 or associated with a wide variety of underlying conditions.312 Some authors have observed abnormal patterns of left ...
Case Report - Departamentos e GEs
... Qp/Qs). On the other hand, the use of very small grafts are at high risk of thrombosis or inappropriate development and growth of the pulmonary arteries7,8. Another concern related to the BT shunt is the high chance for distortions and stenosis in the suture site at the pulmonary artery, that may oc ...
... Qp/Qs). On the other hand, the use of very small grafts are at high risk of thrombosis or inappropriate development and growth of the pulmonary arteries7,8. Another concern related to the BT shunt is the high chance for distortions and stenosis in the suture site at the pulmonary artery, that may oc ...
full text pdf
... largest human artery [10]. The most important structural components of the aortic wall are elastin and collagen. Elastin and collagen condition reversible deformation ability and mechanical strength of the aorta. Elastin is synthesized only in childhood, and the protein half-life is 70 years. Collag ...
... largest human artery [10]. The most important structural components of the aortic wall are elastin and collagen. Elastin and collagen condition reversible deformation ability and mechanical strength of the aorta. Elastin is synthesized only in childhood, and the protein half-life is 70 years. Collag ...
Aortic stenosis and role of multi-detector row computed tomography
... a long latent period, patients remain asymptomatic. However, it should be emphasized that duration of the asymptomatic phase varies widely among individuals. Sudden cardiac death is a frequent cause of death in symptomatic pts but appears to be rare in the asymptomatic (≤ 1% per year). Reported mean ...
... a long latent period, patients remain asymptomatic. However, it should be emphasized that duration of the asymptomatic phase varies widely among individuals. Sudden cardiac death is a frequent cause of death in symptomatic pts but appears to be rare in the asymptomatic (≤ 1% per year). Reported mean ...
The utility of cardiac MRI in diagnosis of infective endocarditis
... source of infection due to distribution by blood flow, some complications have been shown to occur in close proximity to the source. For instance, regurgitant jet flows and intracardiac shunt may lead to development of lesions. Infections in the right ventricle that form due to jet flows in VSDs wit ...
... source of infection due to distribution by blood flow, some complications have been shown to occur in close proximity to the source. For instance, regurgitant jet flows and intracardiac shunt may lead to development of lesions. Infections in the right ventricle that form due to jet flows in VSDs wit ...
Artificial heart valve
An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.