Coexistence of bicuspid aortic valve, aberrant right subclavian artery
... Key words: bicuspid aortic valve, arteria lusoria, aberrant subclavian artery ...
... Key words: bicuspid aortic valve, arteria lusoria, aberrant subclavian artery ...
short notes
... dome with a narrow central opening. ventricular septal defect overriding aorta hypertrophy of right ventricle Cyanosis is an obvious sign but may not be present at birth. Aortic arches When the branchial arches form during weeks ...
... dome with a narrow central opening. ventricular septal defect overriding aorta hypertrophy of right ventricle Cyanosis is an obvious sign but may not be present at birth. Aortic arches When the branchial arches form during weeks ...
PDF - Circulation
... to the left (Figure 2). The right atrium–right ventricle axis was nearly orthogonal to, rather than parallel to, the left atrium–left ventricle axis so that the atrioventricular valves were seen to cross each other, as viewed in the frontal plane (Figure 3 and Movies I and II). The ventricles appear ...
... to the left (Figure 2). The right atrium–right ventricle axis was nearly orthogonal to, rather than parallel to, the left atrium–left ventricle axis so that the atrioventricular valves were seen to cross each other, as viewed in the frontal plane (Figure 3 and Movies I and II). The ventricles appear ...
auscultation_heart
... – Two sounds can sometimes be heard on the femoral artery in aortic incompetence. This doubled tone (Traube's doubled tone) is generated by intense vibration of the vascular wall during both systole and diastole. – The Vinogradov-Duroziez doubled tone can be heard in aortic incompetence over the fem ...
... – Two sounds can sometimes be heard on the femoral artery in aortic incompetence. This doubled tone (Traube's doubled tone) is generated by intense vibration of the vascular wall during both systole and diastole. – The Vinogradov-Duroziez doubled tone can be heard in aortic incompetence over the fem ...
The arterial blood supply of the heart is provided by
... The left coronary artery, which is usually larger than the right coronary artery, arises from the left posterior aortic sinus of the ascending aorta and passes forward between the pulmonary trunk and the left auricle. It supplies the major part of the heart, including the greater part of the left at ...
... The left coronary artery, which is usually larger than the right coronary artery, arises from the left posterior aortic sinus of the ascending aorta and passes forward between the pulmonary trunk and the left auricle. It supplies the major part of the heart, including the greater part of the left at ...
haemodynamics in tresus nuttallii and certain other bivalves
... contraction' marks the typical ejection of pseudofaeces in Mytilus. Correlated with the ejection is an increase in ventricular pressure, both systolic and diastolic, for a few beats. In Pecten sp. (Fig. 4, lower) a sudden increase in heart rate occurred in 'anticipation' of a swimming-type contracti ...
... contraction' marks the typical ejection of pseudofaeces in Mytilus. Correlated with the ejection is an increase in ventricular pressure, both systolic and diastolic, for a few beats. In Pecten sp. (Fig. 4, lower) a sudden increase in heart rate occurred in 'anticipation' of a swimming-type contracti ...
Echocardiographic studies of the motion of the mitral valve in
... rysm,1° bicuspid aortic valve," and supravalvular aortic stenosis12have been described in recent publications. In this report, echocardiographic manifestations are described in patients with ruptured aortic valvular leaflets in the absence of valvular vegetations (confirmed either at surgery or post ...
... rysm,1° bicuspid aortic valve," and supravalvular aortic stenosis12have been described in recent publications. In this report, echocardiographic manifestations are described in patients with ruptured aortic valvular leaflets in the absence of valvular vegetations (confirmed either at surgery or post ...
Pathophysiologic consideration in patients with congenital
... Compression by enlarged aorta or pulmonary artery . Upwards displacement and increase angle of bifurcation of trachea by enlarged LA . ...
... Compression by enlarged aorta or pulmonary artery . Upwards displacement and increase angle of bifurcation of trachea by enlarged LA . ...
Heart - Dr Magrann
... It goes into the left ventricle by passing through the bicuspid (mitral) valve. If this valve is blocked, blood will get backed up into the pulmonary circulation. Blood goes from the left ventricle into the aorta, where it is sent to the body. ...
... It goes into the left ventricle by passing through the bicuspid (mitral) valve. If this valve is blocked, blood will get backed up into the pulmonary circulation. Blood goes from the left ventricle into the aorta, where it is sent to the body. ...
Cardiomyopaties
... Hypertrophy is extednded to the LV free wall in most of the patients. Diastolic filling is impaired because of the incomplete relaxation and compliance of the LV. Hypertrophic LV empties most of its content in the first half of systole. (Hyperdynamic systolic function”). Mitral anterior leaflet is d ...
... Hypertrophy is extednded to the LV free wall in most of the patients. Diastolic filling is impaired because of the incomplete relaxation and compliance of the LV. Hypertrophic LV empties most of its content in the first half of systole. (Hyperdynamic systolic function”). Mitral anterior leaflet is d ...
Flow Characteristics of the Medtronic CoreValve: Difficulties
... less-invasive alternative for patients with severe symptomatic aortic stenosis who are at high-risk for surgical AVR2,3. Survival after TAVI is higher compared to medical therapy alone4, and is comparable with surgical AVR at 1-year5. The need for accurate follow-up assessment of TAVI devices is the ...
... less-invasive alternative for patients with severe symptomatic aortic stenosis who are at high-risk for surgical AVR2,3. Survival after TAVI is higher compared to medical therapy alone4, and is comparable with surgical AVR at 1-year5. The need for accurate follow-up assessment of TAVI devices is the ...
heart sounds
... sudden closure of semilunar valves (aortic and pulmonary) •Sharp and high pitched (50 Hz) •Heard as the word Dub by stethoscope. a Aortic area (A): 2nd right intercostal space near sternum b Pulmonary area (P): 2nd left intercostal space near sternum ...
... sudden closure of semilunar valves (aortic and pulmonary) •Sharp and high pitched (50 Hz) •Heard as the word Dub by stethoscope. a Aortic area (A): 2nd right intercostal space near sternum b Pulmonary area (P): 2nd left intercostal space near sternum ...
Reading Chest Radiographs - University of Washington
... Main Pulm. Artery Descending Thoracic Aorta ...
... Main Pulm. Artery Descending Thoracic Aorta ...
heart sounds practical section
... sudden closure of semilunar valves (aortic and pulmonary) •Sharp and high pitched (50 Hz) •Heard as the word Dub by stethoscope. a Aortic area (A): 2nd right intercostal space near sternum b Pulmonary area (P): 2nd left intercostal space near sternum ...
... sudden closure of semilunar valves (aortic and pulmonary) •Sharp and high pitched (50 Hz) •Heard as the word Dub by stethoscope. a Aortic area (A): 2nd right intercostal space near sternum b Pulmonary area (P): 2nd left intercostal space near sternum ...
Exploration of the Cause of the Low Intensity Aortic Component of
... SUMMARY This investigation was undertaken to explore the cause of the diminished second sound (S2) that may occur in normotensive patients with poorly performing ventricles. Intraaortic sound and pressure were measured in 16 patients with angina; eight had normal ventricular performance (ejection fr ...
... SUMMARY This investigation was undertaken to explore the cause of the diminished second sound (S2) that may occur in normotensive patients with poorly performing ventricles. Intraaortic sound and pressure were measured in 16 patients with angina; eight had normal ventricular performance (ejection fr ...
Introduction to echocardiography
... • Depth information is determined by the time delay of the returned signal • Transducer sends out pulses of ultrasound and “listens” for returning signal ...
... • Depth information is determined by the time delay of the returned signal • Transducer sends out pulses of ultrasound and “listens” for returning signal ...
Approach to an infant with cyanotic heart disease
... Palpitation Chromosomal anomalies Convulsion ...
... Palpitation Chromosomal anomalies Convulsion ...
papaver
... feedback at an early phase to evaluate the functionality. Furthermore, they allow our clinical partners to conduct research with cutting edge image analysis methods. The results of this applied clinical research will be published allowing the establishment of a new standard in the image analysis TAV ...
... feedback at an early phase to evaluate the functionality. Furthermore, they allow our clinical partners to conduct research with cutting edge image analysis methods. The results of this applied clinical research will be published allowing the establishment of a new standard in the image analysis TAV ...
2- Heart rate, heart sound and murmurs
... phonocardiogram, because it has low frequency (20 Hz). It occurs immediately before the first heart sound at late diastole. This sound occurs due to atrial contraction. it is caused by inrush of blood into the ventricle. It is not heard in normal hearts but occurs during ventricular overload as in s ...
... phonocardiogram, because it has low frequency (20 Hz). It occurs immediately before the first heart sound at late diastole. This sound occurs due to atrial contraction. it is caused by inrush of blood into the ventricle. It is not heard in normal hearts but occurs during ventricular overload as in s ...
Heart - Dr Magrann
... It goes into the left ventricle by passing through the bicuspid (mitral) valve. If this valve is blocked, blood will get backed up into the pulmonary circulation. Blood goes from the left ventricle into the aorta, where it is sent to the body. ...
... It goes into the left ventricle by passing through the bicuspid (mitral) valve. If this valve is blocked, blood will get backed up into the pulmonary circulation. Blood goes from the left ventricle into the aorta, where it is sent to the body. ...
Regulation of Heart Rate
... nearly impossible in humans. dP/dt is not an accurate measure because this increases with increasing preload and afterload. (dP/dt)/P ventricle is better. P ventricle is instantaneous ventricular pressure. Excess K+ decreases contractility. Excess Ca++ causes spastic contraction, and low Ca++ causes ...
... nearly impossible in humans. dP/dt is not an accurate measure because this increases with increasing preload and afterload. (dP/dt)/P ventricle is better. P ventricle is instantaneous ventricular pressure. Excess K+ decreases contractility. Excess Ca++ causes spastic contraction, and low Ca++ causes ...
Instantaneous pressure gradient across the aortic valve
... this model suggests that: (1) TPG waveform is exclusively dependent upon transvalvular flow rate and flow geometry, (2) the frequently applied simplified Bernoulli equation may overestimate mean TPG by more than 30% and (3) the measurement of ejection time by cardiac catheterization may underestimate t ...
... this model suggests that: (1) TPG waveform is exclusively dependent upon transvalvular flow rate and flow geometry, (2) the frequently applied simplified Bernoulli equation may overestimate mean TPG by more than 30% and (3) the measurement of ejection time by cardiac catheterization may underestimate t ...
Heart Anatomy - Dr. M`s Class
... – Right ventricle pulmonary semilunar valve pulmonary trunk pulmonary arteries ...
... – Right ventricle pulmonary semilunar valve pulmonary trunk pulmonary arteries ...
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 ...
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.