Tetralogy of Fallot
... the lungs is high, a large amount of oxygen-poor (blue) blood passes through the VSD, mixes with the oxygen-rich (red) blood in the left ventricle, and is pumped to the body. The more blood that goes through the VSD, the less blood that goes through the pulmonary artery to the lungs, and the less ox ...
... the lungs is high, a large amount of oxygen-poor (blue) blood passes through the VSD, mixes with the oxygen-rich (red) blood in the left ventricle, and is pumped to the body. The more blood that goes through the VSD, the less blood that goes through the pulmonary artery to the lungs, and the less ox ...
![Heart sounds. Phonocardiogram. Carotidogram. []](http://s1.studyres.com/store/data/007908952_1-a6d5305206d60fd6ce288ec94dfea154-300x300.png)
Heart sounds. Phonocardiogram. Carotidogram. []
... volume variations of the carotid artery during the cardiac cycle. Using the carotidogram tracing, we can: - observe certain characteristic changes of the curve shape (can be wider or flatter); - identify different intervals that correspond to particular phases of the cardiac cycle; - calculate systo ...
... volume variations of the carotid artery during the cardiac cycle. Using the carotidogram tracing, we can: - observe certain characteristic changes of the curve shape (can be wider or flatter); - identify different intervals that correspond to particular phases of the cardiac cycle; - calculate systo ...
Fetal CHF
... in maternal prostaglandin inhibitors ingestion • Results in RV pressure overload, hydrops fetalis • On Echo: – elevated peak systolic flow velocities across DA (> 1m/s); associated high diastolic flow velocity – Associated with TR; increased MPA pressure • Severity related to amount of elevated dias ...
... in maternal prostaglandin inhibitors ingestion • Results in RV pressure overload, hydrops fetalis • On Echo: – elevated peak systolic flow velocities across DA (> 1m/s); associated high diastolic flow velocity – Associated with TR; increased MPA pressure • Severity related to amount of elevated dias ...
ch20 outline
... agents decrease contractility. 2. Thus, for a constant preload, the stroke volume increases when positive inotropic agents are present and decreases when negative inotropic agents are present. c. The pressure that must be overcome before a semilunar valve can open is the afterload. 1. In congestive ...
... agents decrease contractility. 2. Thus, for a constant preload, the stroke volume increases when positive inotropic agents are present and decreases when negative inotropic agents are present. c. The pressure that must be overcome before a semilunar valve can open is the afterload. 1. In congestive ...
EXPERIMENTAL ANALYSIS INTO THE MAIN ARTERY OF 2
... heart. Most of the mammal’s hearts consist of 4 heart valves. These valves ensure unidirectional blood flow during cardiac cycle. Atrium and ventricle are the upper and lower chambers where atria act as receiving chamber and ventricles act as discharging chamber. Left and right hearts are separate b ...
... heart. Most of the mammal’s hearts consist of 4 heart valves. These valves ensure unidirectional blood flow during cardiac cycle. Atrium and ventricle are the upper and lower chambers where atria act as receiving chamber and ventricles act as discharging chamber. Left and right hearts are separate b ...
HYBRID CARDIOVASCULAR SIMULATOR PERFORMANCE
... system. MCS main goal is to perform simulation of physiological circulatory conditions and to minimize number of “in vivo” animal tests. Hybrid Cardiovascular Simulator (HCS) is a system composed by two sections: 1) numeric section: comprising seven compartments – right heart, lungs, head, arms, tru ...
... system. MCS main goal is to perform simulation of physiological circulatory conditions and to minimize number of “in vivo” animal tests. Hybrid Cardiovascular Simulator (HCS) is a system composed by two sections: 1) numeric section: comprising seven compartments – right heart, lungs, head, arms, tru ...
Ventricular Septal Defect (VSD)
... finding is not unique to VSD. Echocardiography is the diagnostic technique of choice because it allows one to visualize the size and location of the defect as well as the direction of blood flow through the communication between the ventricles. At necropsy, most VSDs can be found just ventral to the ...
... finding is not unique to VSD. Echocardiography is the diagnostic technique of choice because it allows one to visualize the size and location of the defect as well as the direction of blood flow through the communication between the ventricles. At necropsy, most VSDs can be found just ventral to the ...
Lecture - Radiology
... Multiple lesions in the chest are typical for metastatic disease since the pulmonary capillary bed is often the first site metastatic lesions appear as they spread and embolize the pulmonary capillaries and grow in the new location. ...
... Multiple lesions in the chest are typical for metastatic disease since the pulmonary capillary bed is often the first site metastatic lesions appear as they spread and embolize the pulmonary capillaries and grow in the new location. ...
Left ventricle unloading during veno-arterial
... VA-ECMO currently represents the most efficient minimally invasive circulatory support system. It provides sufficient support to enable adequate tissue perfusion even in cardiac arrest, and the hemodynamic efficacy is superior to other available percutaneous circulatory support systems such as Impel ...
... VA-ECMO currently represents the most efficient minimally invasive circulatory support system. It provides sufficient support to enable adequate tissue perfusion even in cardiac arrest, and the hemodynamic efficacy is superior to other available percutaneous circulatory support systems such as Impel ...
Core G 1 4 7 8 9 11
... - right ventricle only needs to pump blood to lungs and this is a short distance (c) (i) Background: Explain what happens in the heart when left ventricle pressure exceeds aortic/aorta pressure. (2 marks) Answer: - semilunar valves of aorta open as pressure in ventricle is higher than pressure in ao ...
... - right ventricle only needs to pump blood to lungs and this is a short distance (c) (i) Background: Explain what happens in the heart when left ventricle pressure exceeds aortic/aorta pressure. (2 marks) Answer: - semilunar valves of aorta open as pressure in ventricle is higher than pressure in ao ...
Cardiac Cycle - Uplift Education
... 1. What are the different valves of the heart? 2. Where are they located? (use #s from diagram) 3. Why is the left ventricle larger than the right ventricle? ...
... 1. What are the different valves of the heart? 2. Where are they located? (use #s from diagram) 3. Why is the left ventricle larger than the right ventricle? ...
Severe aortic stenosis in a Persian kitten Estenose aórtica
... (1986) has documented this defect to count for only 6% of all congenital heart disease in domestic felines. The increased left ventricular systolic pressure propels blood at a higher velocity across the stenotic area, thereby resulting in a turbulent flow that is associated with a systolic ejection ...
... (1986) has documented this defect to count for only 6% of all congenital heart disease in domestic felines. The increased left ventricular systolic pressure propels blood at a higher velocity across the stenotic area, thereby resulting in a turbulent flow that is associated with a systolic ejection ...
giant left atrial myxoma presenting with heart failure
... and can present with various manifestations. It is usually asymptomatic over a long period of time. Some documented clinical manifestations include cryptogenic stroke and obstructive symptoms such as mimics of aortic stenosis, mitral stenosis and severe pulmonary hypertension (2-4). There are few re ...
... and can present with various manifestations. It is usually asymptomatic over a long period of time. Some documented clinical manifestations include cryptogenic stroke and obstructive symptoms such as mimics of aortic stenosis, mitral stenosis and severe pulmonary hypertension (2-4). There are few re ...
Ministernotomy for aortic valve replacement
... are currently being evaluated in many aspects of heart surgery. Pressure from percutaneous intervention methods and patient requests for less-invasive procedures have brought a new concern to the surgeon: How long a skin incision and thoracic opening are necessary to safely carry out cardiac surgica ...
... are currently being evaluated in many aspects of heart surgery. Pressure from percutaneous intervention methods and patient requests for less-invasive procedures have brought a new concern to the surgeon: How long a skin incision and thoracic opening are necessary to safely carry out cardiac surgica ...
INNOVATIVE TECHNIQUES EXPERT COMMENTARY
... tachycardias in the setting of complex congenital heart disease,1,2 more routine supraventricular tachycardias,3 and ventricular tachycardia.4–6 There has also been a small trial comparing transseptal versus retrograde aortic approaches to left-sided accessory pathways using RMT.7 Beyond feasibility ...
... tachycardias in the setting of complex congenital heart disease,1,2 more routine supraventricular tachycardias,3 and ventricular tachycardia.4–6 There has also been a small trial comparing transseptal versus retrograde aortic approaches to left-sided accessory pathways using RMT.7 Beyond feasibility ...
12-Development_of_Heart
... 2.Endocardial cushions defects with ostium primum: septum primum does not fuse with cushions resulting in a patent forament primum 3.Sinus venosus defect: incomplete absorption of sinus venosus 4.Common atrium: failure of both septa to develop ...
... 2.Endocardial cushions defects with ostium primum: septum primum does not fuse with cushions resulting in a patent forament primum 3.Sinus venosus defect: incomplete absorption of sinus venosus 4.Common atrium: failure of both septa to develop ...
Use of Contrast Echocardiography for Evaluation of
... Fallot and one patient with a large VSD and increased pulmonary vascular resistance. Echo-dense material again appeared in the LV early in diastole and was ejected into the aorta during systole. The appearance time/R-R ratio was significantly less than in groups II or III, allowing a clear separatio ...
... Fallot and one patient with a large VSD and increased pulmonary vascular resistance. Echo-dense material again appeared in the LV early in diastole and was ejected into the aorta during systole. The appearance time/R-R ratio was significantly less than in groups II or III, allowing a clear separatio ...
Myocardial Infarction-induced Ventricular Septal Defect
... it has been observed also within the first 24 hours or as late as two weeks [1]. In a study of 6678 consecutive MI patients during the last 30 years, it accounted for about 2% of the total population [2]. The incidence has been diminishing over the last decades thanks to the introduction of timely r ...
... it has been observed also within the first 24 hours or as late as two weeks [1]. In a study of 6678 consecutive MI patients during the last 30 years, it accounted for about 2% of the total population [2]. The incidence has been diminishing over the last decades thanks to the introduction of timely r ...
ventricular septaldefect with shunt from left ventricle to right atrium
... directly related to the amount of left-to-right shunting of blood with pulmonary vascular engorgement. These consisted of poor feeding in infancy and easy fatigue; tachypncea, pneumonia, and congestive heart failure were often noted. The usual findings on examination were a precordial thrill and lou ...
... directly related to the amount of left-to-right shunting of blood with pulmonary vascular engorgement. These consisted of poor feeding in infancy and easy fatigue; tachypncea, pneumonia, and congestive heart failure were often noted. The usual findings on examination were a precordial thrill and lou ...
2- Left circumflex coronary artery
... switching to Anaerobic glycolysis for ATP - if ischemia lasts for less than 2 min: loss of contractility - ischemia lasts between 1 - 10 minutes causes reversible injury to myocytes - ischemia lasts 20-40 minutes causes irreversible injury to myocytes - If myocardial blood flow is restored before 20 ...
... switching to Anaerobic glycolysis for ATP - if ischemia lasts for less than 2 min: loss of contractility - ischemia lasts between 1 - 10 minutes causes reversible injury to myocytes - ischemia lasts 20-40 minutes causes irreversible injury to myocytes - If myocardial blood flow is restored before 20 ...
Understanding Preload
... Preload is known as the load imposed on the ventricle at the end of diastole. At a cellular level, preload is defined as the maximum degree of myocardial fiber stretch or tension before ventricular contraction, determined by the mean sarcomere length at the end of diastole. Since sarcomere length ca ...
... Preload is known as the load imposed on the ventricle at the end of diastole. At a cellular level, preload is defined as the maximum degree of myocardial fiber stretch or tension before ventricular contraction, determined by the mean sarcomere length at the end of diastole. Since sarcomere length ca ...
Anatomy of the conduction system
... which then branches into a left and right bundle branch. The right bundle branch is a cable-like structure, insulated from surrounding myocardium for most of its length. When it reaches the right ventricular apex it makes its initial electrical contact with myocardial cells of the anterior papillary ...
... which then branches into a left and right bundle branch. The right bundle branch is a cable-like structure, insulated from surrounding myocardium for most of its length. When it reaches the right ventricular apex it makes its initial electrical contact with myocardial cells of the anterior papillary ...
Ask Doctor Clarke
... Large VSD: on examination • Left parasternal heave (due to right ventricular hypertrophy) • Quiet or absent pansystolic murmur • Pulmonary ejection murmur • In other words, signs of pulmonary hypertension Typical case: small VSD • Blowing pansystolic murmur at lower left sternal edge • With an assoc ...
... Large VSD: on examination • Left parasternal heave (due to right ventricular hypertrophy) • Quiet or absent pansystolic murmur • Pulmonary ejection murmur • In other words, signs of pulmonary hypertension Typical case: small VSD • Blowing pansystolic murmur at lower left sternal edge • With an assoc ...
Episodic Central Nervous System Ischemia of
... carotid artery distribution. Thus, in an antemortem study of 122 patients with the arterial lesion thought responsible for cerebral infarction in either the internal carotid artery or the middle cerebral artery, L'Hermitte et al. found the probability of 20 cases with cardiac embolic origin.6 Blackw ...
... carotid artery distribution. Thus, in an antemortem study of 122 patients with the arterial lesion thought responsible for cerebral infarction in either the internal carotid artery or the middle cerebral artery, L'Hermitte et al. found the probability of 20 cases with cardiac embolic origin.6 Blackw ...
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.