Aetiology of sudden cardiac death in sport: a histopathologist`s
... in epicardial coronary segments). Exercise-induced ischaemia and/or a pathological exercise test result may not only be caused by severe coronary stenoses, but may also be due to a reduced coronary perfusion reserve, secondary to microvascular dysfunction. Pro-atherogenic cardiovascular risk factors ...
... in epicardial coronary segments). Exercise-induced ischaemia and/or a pathological exercise test result may not only be caused by severe coronary stenoses, but may also be due to a reduced coronary perfusion reserve, secondary to microvascular dysfunction. Pro-atherogenic cardiovascular risk factors ...
E. All mentioned above.
... 28. To analyze results of ECG recording in patient with altered conductivity. 29. To analyze results of ECG recording in patient with altered excitability function. To differentiate the types of premature heart contractions. 30. To analyze results of ECG recording in patient with altered automaticy ...
... 28. To analyze results of ECG recording in patient with altered conductivity. 29. To analyze results of ECG recording in patient with altered excitability function. To differentiate the types of premature heart contractions. 30. To analyze results of ECG recording in patient with altered automaticy ...
Congenital heart defects in cats - Epsilon Archive for Student Projects
... great vessels present at birth. Depending on the severity of the defect, it may lead to heart failure, which generally results in a decreased quality of life and/or shortened life span. The prevalence of CHDs in cats in Sweden is not known and little is generally known about the expected lifespan of ...
... great vessels present at birth. Depending on the severity of the defect, it may lead to heart failure, which generally results in a decreased quality of life and/or shortened life span. The prevalence of CHDs in cats in Sweden is not known and little is generally known about the expected lifespan of ...
An adaptive singular spectrum analysis approach to murmur
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
Valvular Heart Disease
... or chronic AR. (Level of Evidence: B) B. Assessment of the cause of chronic AR (including valve morphology and aortic root size and morphology) and assessment of LV hypertrophy, dimension (or volume), and systolic function. (Level of Evidence: B) C. Assessment of AR and severity of aortic dilatation ...
... or chronic AR. (Level of Evidence: B) B. Assessment of the cause of chronic AR (including valve morphology and aortic root size and morphology) and assessment of LV hypertrophy, dimension (or volume), and systolic function. (Level of Evidence: B) C. Assessment of AR and severity of aortic dilatation ...
Thrombosis in one coronary artery causes
... cannot therefore be the conduit for emboli. We postulated that there was a generalized coronary vasoconstriction in this situation. However, the collaterals are proximal vessels that do not directly feed the terminal coronary microcirculation. The present paper is the only one to present evidence of ...
... cannot therefore be the conduit for emboli. We postulated that there was a generalized coronary vasoconstriction in this situation. However, the collaterals are proximal vessels that do not directly feed the terminal coronary microcirculation. The present paper is the only one to present evidence of ...
recommendations of the british paediatric cardiac association
... It is important that the paediatric cardiac catheterisation theatres are not restricted by the adult cardiology or radiology service with regard to the type of equipment that is used or stocked in the theatre. The introducer sheaths, the guidewires, the diagnostic catheters, the balloon catheters ...
... It is important that the paediatric cardiac catheterisation theatres are not restricted by the adult cardiology or radiology service with regard to the type of equipment that is used or stocked in the theatre. The introducer sheaths, the guidewires, the diagnostic catheters, the balloon catheters ...
How to do It : Closed Mitral Commissurotomy
... the mitral valve orifice(Fig 5). It is important that the shoulder of the Tubb’s dilator be fully inside the LV cavity and the dilator not held within the chordae of the mitral valve apparatus. The anesthetist is cautioned, and both carotids are felt and compressed briefly when the split is made.The ...
... the mitral valve orifice(Fig 5). It is important that the shoulder of the Tubb’s dilator be fully inside the LV cavity and the dilator not held within the chordae of the mitral valve apparatus. The anesthetist is cautioned, and both carotids are felt and compressed briefly when the split is made.The ...
Interaction between systolic and diastolic time intervals in atrial
... ends with the onset of the succeeding ventricular systole. Nevertheless, we find considerable beat to beat variation in the exact time that it did so with respect to the onset of the QRS complex of the succeeding beat. When the RR interval was greater than 1000 ms the interval Q2 to mitral valve clo ...
... ends with the onset of the succeeding ventricular systole. Nevertheless, we find considerable beat to beat variation in the exact time that it did so with respect to the onset of the QRS complex of the succeeding beat. When the RR interval was greater than 1000 ms the interval Q2 to mitral valve clo ...
Cardiac magnetic resonance imaging in congenital heart disease
... of nonlinear, cyclic GBCAs is preferred, as for this ...
... of nonlinear, cyclic GBCAs is preferred, as for this ...
Variations of origin of coronary artery and their importance
... during or after exercise (REUL, COOLEY, HALLMAN et al., 2002). A study carried out by Taylor, Rogan and Virmani (1992) on 52 patients with variations in the origin of the RCA reported sudden and asymptomatic death in 25% of patients. Mortality rate of younger patients (30 or below) was higher than o ...
... during or after exercise (REUL, COOLEY, HALLMAN et al., 2002). A study carried out by Taylor, Rogan and Virmani (1992) on 52 patients with variations in the origin of the RCA reported sudden and asymptomatic death in 25% of patients. Mortality rate of younger patients (30 or below) was higher than o ...
6 Heart Sounds
... contact of valve cusps upon closure. When it was realized that the strength of contraction of the left ventricle had a significant effect on the intensity of the first heart sound, the myocardial theory of the origin of the sound was postulated. Some even had suggested extracardiac origin of sounds ...
... contact of valve cusps upon closure. When it was realized that the strength of contraction of the left ventricle had a significant effect on the intensity of the first heart sound, the myocardial theory of the origin of the sound was postulated. Some even had suggested extracardiac origin of sounds ...
Mechanism of diastolic rumble and presystolic - Heart
... recordings of the mitral valve echocardiogram, phonocardiogram, and apex cardiogram. It was observed that: (a) the diastolic rumble began just after the E point of the echocardiogram, clearly related to the diastolic closure of the valve, and was never recorded during the opening motion of the valve ...
... recordings of the mitral valve echocardiogram, phonocardiogram, and apex cardiogram. It was observed that: (a) the diastolic rumble began just after the E point of the echocardiogram, clearly related to the diastolic closure of the valve, and was never recorded during the opening motion of the valve ...
Print - Circulation
... pulmonary edema. There is great individual variation in the rapidity of onset and in the severity of this vascular change. Some patients never seem to develop it, and in others, it appears to develop, parn passu, with the stenosis. With the superimposition of increased pulmonary vascular resistance, ...
... pulmonary edema. There is great individual variation in the rapidity of onset and in the severity of this vascular change. Some patients never seem to develop it, and in others, it appears to develop, parn passu, with the stenosis. With the superimposition of increased pulmonary vascular resistance, ...
Cardiovascular disease in obstetrics
... • No IV bubbles (LR shunt can reverse). • Epidural LOR with saline, not air • Pain increased SVR increased LR shunt ?RV failure? ...
... • No IV bubbles (LR shunt can reverse). • Epidural LOR with saline, not air • Pain increased SVR increased LR shunt ?RV failure? ...
Three dimensional fluid structural interaction of tissue valves
... incompetent valve. The stenosis of the aortic valve causes varying degrees of left ventricular outflow obstruction thus affecting the overall pumping efficiency of the heart. The stenosis can either be congenital (in BAV) or acquired. Congenital malformation of the leaflet is often associated with d ...
... incompetent valve. The stenosis of the aortic valve causes varying degrees of left ventricular outflow obstruction thus affecting the overall pumping efficiency of the heart. The stenosis can either be congenital (in BAV) or acquired. Congenital malformation of the leaflet is often associated with d ...
Cardiac Morphology and Blood Pressure in the Adult Zebrafish
... the atrium (P ⬍ 0.05) with abundant mitochondria close to the sarcolemmal. Sarcoplasmic reticulum was sparse in zebrafish ventricle. Bulbus arteriosus was located anterior to the ventricle, and functioned as an elastic reservoir to absorb the rapid rise of pressure during ventricular contraction. Th ...
... the atrium (P ⬍ 0.05) with abundant mitochondria close to the sarcolemmal. Sarcoplasmic reticulum was sparse in zebrafish ventricle. Bulbus arteriosus was located anterior to the ventricle, and functioned as an elastic reservoir to absorb the rapid rise of pressure during ventricular contraction. Th ...
Truncal Inversion withBiventricular Pulmonary Trunk and Aorta from
... Hearts with l)iventricular orijin of the pulmonoary trunk wvith origin of the aorta fromii the right ventricle, with or vithout pulmonaomry steniosis, have recently been studied by one of us.4' A concept of xvhat we call the Taussigl3ing spectrum of hearts (or douille-outlet right ventricle of the T ...
... Hearts with l)iventricular orijin of the pulmonoary trunk wvith origin of the aorta fromii the right ventricle, with or vithout pulmonaomry steniosis, have recently been studied by one of us.4' A concept of xvhat we call the Taussigl3ing spectrum of hearts (or douille-outlet right ventricle of the T ...
Anterior Mitral Basal `Stay` Chords are Essential for Left Ventricular
... The mitral annulus plane was defined as the plane that included both FT (T1 and T2) and the middle of the PMA. The aortic annulus plane was defined as plane incorporating both FT (T1 and T2) and the lowest point of the right coronary sinus (RCS) (Fig. 1). Both planes defined the base of the heart wi ...
... The mitral annulus plane was defined as the plane that included both FT (T1 and T2) and the middle of the PMA. The aortic annulus plane was defined as plane incorporating both FT (T1 and T2) and the lowest point of the right coronary sinus (RCS) (Fig. 1). Both planes defined the base of the heart wi ...
A congenital cardiovascular malformation in which there is an
... A congenital cardiovascular malformation of the pulmonary valve in which there is narrowing or stricture (obstruction to flow) Pulmonary stenosis, Subvalvar A congenital cardiovascular malformation associated with narrowing within the outflow tract supporting the pulmonary valve. Pulmonary artery st ...
... A congenital cardiovascular malformation of the pulmonary valve in which there is narrowing or stricture (obstruction to flow) Pulmonary stenosis, Subvalvar A congenital cardiovascular malformation associated with narrowing within the outflow tract supporting the pulmonary valve. Pulmonary artery st ...
Input Impedance of the Systemic Circulation in Man
... measuring instantaneous blood flow in human subjects prevented similar studies of flow waves. The first direct measurements of pulsatile flow in the ascending aorta of man were obtained with a perivascular electromagnetic probe placed around the vessel at the time of surgery.U2 Advances in design ha ...
... measuring instantaneous blood flow in human subjects prevented similar studies of flow waves. The first direct measurements of pulsatile flow in the ascending aorta of man were obtained with a perivascular electromagnetic probe placed around the vessel at the time of surgery.U2 Advances in design ha ...
Tunnel Subaortic Stenosis
... conditions producing fixed obstruction to left ventricular outflow are well known.`8 In particular, fixed subaortic stenosis produced by a discrete fibrous membrane located just under the aortic valve has been the subject of numerous reports.'0 Subvalvular membranes of this type can be excised readi ...
... conditions producing fixed obstruction to left ventricular outflow are well known.`8 In particular, fixed subaortic stenosis produced by a discrete fibrous membrane located just under the aortic valve has been the subject of numerous reports.'0 Subvalvular membranes of this type can be excised readi ...
Indices of Myocardial Contractility
... to have a fiber shorten against no hindrance because, even if there appeared to be no hindrance, the fiber would still have to shorten against itself. The method for estimating the maximal velocity of fiber shortening that could occur only against no load is shown (Fig 1) and explained as follows. A ...
... to have a fiber shorten against no hindrance because, even if there appeared to be no hindrance, the fiber would still have to shorten against itself. The method for estimating the maximal velocity of fiber shortening that could occur only against no load is shown (Fig 1) and explained as follows. A ...
Diastolic mitral regurgitation: a borderline case in cardiovascular
... Abstract. – Background: Mitral regurgitation during diastole in 5 subjects, of whom 4 affected by cardiovascular disease and 1 healthy competitive athlete, was the aim of this work. The 4 patients are respectively affected by: 1rst case: arterial hypertension, dyslipidemia and III degree AV block in ...
... Abstract. – Background: Mitral regurgitation during diastole in 5 subjects, of whom 4 affected by cardiovascular disease and 1 healthy competitive athlete, was the aim of this work. The 4 patients are respectively affected by: 1rst case: arterial hypertension, dyslipidemia and III degree AV block in ...
Aortic stenosis
Aortic stenosis (AS) is the narrowing of the exit of the left ventricle of the heart such that problems result. It may occur at the aortic valve as well as above and below this level. It typically gets worse over time. Symptoms often come on gradually with a decreased ability to exercise often occurring first. If heart failure, loss of consciousness, or heart related chest pain occurs due to AS the outcomes are worse. Loss of consciousness typically occurs with standing or exercise. Signs of heart failure include shortness of breath especially with lying down, at night, and with exercise as well as swelling of the legs. Thickening of the valve without narrowing is known as aortic sclerosis.Causes include being born with a bicuspid aortic valve and rheumatic fever. A bicuspid aortic valve affects about one to two percent of the population while rheumatic heart disease mostly occurring in the developing world. A normal valve, however, may also harden over the decades. Risk factors are similar to those of coronary artery disease and include smoking, high blood pressure, high cholesterol, diabetes, and being male. The aortic valve usually has three leaflets and is located between the left ventricle of the heart and the aorta. AS typically results in a heart murmur. Its severity can be divided into mild, moderate, severe, and very severe based on ultrasound of the heart findings.Aortic stenosis is typically followed using repeated ultrasounds. Once it has become severe treatment primarily involves valve replacement surgery with transcatheter aortic valve replacement (TAVR) being an option in some who are at high risk from surgery. Valves may either be mechanical or bioprosthetic with each having risks and benefits. Another less invasive procedure, balloon aortic valvuloplasty (BAV) may result in benefit but this is for only for a few months. Complications like heart failure may be treated as per normal in those with mild to moderate AS. In those with severe disease a number of medications should be avoided including ACE inhibitors, nitroglycerin, and some beta blockers. Nitroprusside or phenylephrine may be used in those with decompensated heart failure depending on the blood pressure.Aortic stenosis is the most common valvular heart disease in the developed world. It affects about 2% of people who are over 65 years of age. Estimated rates are not known in most of the developing world as of 2014. In those who have symptoms, without repair, the chance of death at five years is about 50% and at 10 years is about 90%. Aortic stenosis was first described by French physician Lazare Rivière in 1663.