LATE DEVELOPMENT AND PARTITIONING OF THE HEART
... • Development of the primitive heart with a single atrium and ventricle, into the typical four-chambered structure occurs between the fourth and seventh weeks by formation of interatrial and interventricular septa • Many congenital heart problems can develop during this crucial time ...
... • Development of the primitive heart with a single atrium and ventricle, into the typical four-chambered structure occurs between the fourth and seventh weeks by formation of interatrial and interventricular septa • Many congenital heart problems can develop during this crucial time ...
Print this article - International Journal of Research in Medical
... has subsequently been refined, and the preferred term „congenital pulmonary venolobar syndrome‟ was coined by Dr Ben Felson in 2003. The first report of surgical therapy for Scimitar syndrome was in 1950 by Drake and Lynch who performed right lobectomy.14 Embryology: Scimitar syndrome arises during ...
... has subsequently been refined, and the preferred term „congenital pulmonary venolobar syndrome‟ was coined by Dr Ben Felson in 2003. The first report of surgical therapy for Scimitar syndrome was in 1950 by Drake and Lynch who performed right lobectomy.14 Embryology: Scimitar syndrome arises during ...
Left ventricle
... Pathway of Blood Through the Heart • Equal volumes of blood pumped to pulmonary and systemic circuits • Pulmonary circuit short, low-pressure circulation • Systemic circuit long, high-friction circulation • Anatomy of ventricles reflects differences – Left ventricle walls 3X thicker than right ...
... Pathway of Blood Through the Heart • Equal volumes of blood pumped to pulmonary and systemic circuits • Pulmonary circuit short, low-pressure circulation • Systemic circuit long, high-friction circulation • Anatomy of ventricles reflects differences – Left ventricle walls 3X thicker than right ...
Cyanotic CHD
... # Lt to Rt shunt at ASD level,Rt to Lt shunt at PDA level, retrograde flow in AAO. ...
... # Lt to Rt shunt at ASD level,Rt to Lt shunt at PDA level, retrograde flow in AAO. ...
Intermediate Outcome of Transcatheter Closure of Secundum Atrial
... All the patients had normal sinus rhythm before closure and no one developed arrhythmia till 1 year after closure. Comparing the ECG parameters measured before closure to those measured after one month and after one year there was a highly significant reduction in the values of P wave duration (P= 0 ...
... All the patients had normal sinus rhythm before closure and no one developed arrhythmia till 1 year after closure. Comparing the ECG parameters measured before closure to those measured after one month and after one year there was a highly significant reduction in the values of P wave duration (P= 0 ...
- British Heart Foundation
... right bottom chamber (ventricle). If you have tricuspid atresia, your valve didn’t develop properly, and is either closed or missing. There was also a hole between the top two chambers of your heart (atrial septal defect or ASD), and the bottom two chambers of your heart (ventricular septal defect o ...
... right bottom chamber (ventricle). If you have tricuspid atresia, your valve didn’t develop properly, and is either closed or missing. There was also a hole between the top two chambers of your heart (atrial septal defect or ASD), and the bottom two chambers of your heart (ventricular septal defect o ...
this PDF file - American Medical Student Research Journal
... catheter ablations of AF are commonly done under general anesthesia (GA). Patients with PH are at significant risk for perioperative and postoperative morbidity and mortality when undergoing GA.32-34 Furthermore, these therapies do not often address the underlying cause of AF. In some cases, such as ...
... catheter ablations of AF are commonly done under general anesthesia (GA). Patients with PH are at significant risk for perioperative and postoperative morbidity and mortality when undergoing GA.32-34 Furthermore, these therapies do not often address the underlying cause of AF. In some cases, such as ...
Cardiovascular System
... The top of the heart connects to a few large blood vessels. The largest of these is the aorta, or main artery, which carries nutrient-rich blood away from the heart. Another important vessel is the pulmonary artery which connects the heart with the lungs as part of the pulmonary circulation system. ...
... The top of the heart connects to a few large blood vessels. The largest of these is the aorta, or main artery, which carries nutrient-rich blood away from the heart. Another important vessel is the pulmonary artery which connects the heart with the lungs as part of the pulmonary circulation system. ...
An Introduction to the Cardiovascular System
... The cardiac cycle is the sequence of events that occurs in one complete beat of the heart. The pumping phase of the cycle, also known as systole, occurs when heart muscle contracts. The filling phase, which is known as diastole, occurs when heart muscle relaxes. At the beginning of the cardiac cycle ...
... The cardiac cycle is the sequence of events that occurs in one complete beat of the heart. The pumping phase of the cycle, also known as systole, occurs when heart muscle contracts. The filling phase, which is known as diastole, occurs when heart muscle relaxes. At the beginning of the cardiac cycle ...
Noninvasive evaluation of right atrial function in - diss.fu
... In the present study, right atrial pump function is evaluated through the 2-D echocardiographic area method and tissue Doppler imaging. Compared to normal subjects the ASD patients had significantly higher right atrial area at onset of atrial contraction, which indicates a higher preload for the rig ...
... In the present study, right atrial pump function is evaluated through the 2-D echocardiographic area method and tissue Doppler imaging. Compared to normal subjects the ASD patients had significantly higher right atrial area at onset of atrial contraction, which indicates a higher preload for the rig ...
dynamic anatomical study of cardiac shunting in crocodiles using
... valve covered the foramen during systole and that only during diastole, when the aortic valves were closed, was there free communication between the two aortas (Axelsson et al. 1989). High-resolution angioscopy in the present study confirmed that the medial cusp of the right aortic valve does cover ...
... valve covered the foramen during systole and that only during diastole, when the aortic valves were closed, was there free communication between the two aortas (Axelsson et al. 1989). High-resolution angioscopy in the present study confirmed that the medial cusp of the right aortic valve does cover ...
Case Report - Departamentos e GEs
... pulmonary venous drainage in HLHS is essential for neonatal treatment planning3,4,12. One of the markers of TAPVC in fetal life is the increased distance between the left atrium and the descending thoracic aorta in the four-chamber view, as seen in this case (Figure 1-A). This occurs because the com ...
... pulmonary venous drainage in HLHS is essential for neonatal treatment planning3,4,12. One of the markers of TAPVC in fetal life is the increased distance between the left atrium and the descending thoracic aorta in the four-chamber view, as seen in this case (Figure 1-A). This occurs because the com ...
MR Imaging of Congenital Heart Disease
... echocardiography is the imaging modality of choice for pre-operative diagnosis and assessment. The role of cross-sectional imaging is mainly in diagnosis of post-operative complications, particularly those that develop, as the child grows older. The main complications of the arterial switch operatio ...
... echocardiography is the imaging modality of choice for pre-operative diagnosis and assessment. The role of cross-sectional imaging is mainly in diagnosis of post-operative complications, particularly those that develop, as the child grows older. The main complications of the arterial switch operatio ...
Cardiopulmonary Physiology
... As mentioned in the description of the Wiggers diagram, the closure of the A-V valves and semilunar valves produce the first and second heart sounds. It was previously assumed that these sounds were the result of the valve leaflets snapping together, however, current interpretations suggest that the ...
... As mentioned in the description of the Wiggers diagram, the closure of the A-V valves and semilunar valves produce the first and second heart sounds. It was previously assumed that these sounds were the result of the valve leaflets snapping together, however, current interpretations suggest that the ...
PDF
... Passage of blood through the heart Blood follows this sequence through the heart: superior and inferior vena cava → right atrium → tricuspid valve → right ventricle → pulmonary semilunar valve → pulmonary trunk and arteries to the lungs → pulmonary veins leaving the lungs → left atrium → bicuspid va ...
... Passage of blood through the heart Blood follows this sequence through the heart: superior and inferior vena cava → right atrium → tricuspid valve → right ventricle → pulmonary semilunar valve → pulmonary trunk and arteries to the lungs → pulmonary veins leaving the lungs → left atrium → bicuspid va ...
Appendix 1 - Report of the Manitoba Pediatric Cardiac Surgery Inquest
... Atrial Pertaining to the atria. Atrial septal defect (ASD) An abnormal opening or hole in the septum between the right and left atria. Normally, the flow of blood will be from left to right (left to right shunt). Blood flow from right to left (right to left shunt) will be present only if there are o ...
... Atrial Pertaining to the atria. Atrial septal defect (ASD) An abnormal opening or hole in the septum between the right and left atria. Normally, the flow of blood will be from left to right (left to right shunt). Blood flow from right to left (right to left shunt) will be present only if there are o ...
Idiopathic atrial fibrillation: a rose by any other name?
... It is interesting that part of their definition of hypertension was the echocardiographic finding of left ventricular hypertrophy, a known consequence of hypertension and a frequent indicator of hypertensive heart disease. Paradoxically they did not exclude left atrial enlargement (volume, diameter, ...
... It is interesting that part of their definition of hypertension was the echocardiographic finding of left ventricular hypertrophy, a known consequence of hypertension and a frequent indicator of hypertensive heart disease. Paradoxically they did not exclude left atrial enlargement (volume, diameter, ...
Heart
... • sinus venarum - smooth surfaced area where veins enter right atrium entrances of superior and inferior vana cava, coronary sinus • Right atriventricular orifice, tricuspid valve • interatrial septum, fossa ovalis - remnant of foramen ovale (in fetus) *check if patent ...
... • sinus venarum - smooth surfaced area where veins enter right atrium entrances of superior and inferior vana cava, coronary sinus • Right atriventricular orifice, tricuspid valve • interatrial septum, fossa ovalis - remnant of foramen ovale (in fetus) *check if patent ...
Moderated poster session 2
... 36.0±8.8 ml, p=0.005), and LAVI (22.0±6 vs 19.5±5 ml/m 2, p<0.05). Hypertensives had also greater PWV compared to normotensives (8.5±1.3 vs 7.6±1.1 cm/sec respectively, p=0.001). In the entire study population, LAVI exhibited positive relationships with LVMI (r=0.405, p<0.0001), 24-hour pulse pressu ...
... 36.0±8.8 ml, p=0.005), and LAVI (22.0±6 vs 19.5±5 ml/m 2, p<0.05). Hypertensives had also greater PWV compared to normotensives (8.5±1.3 vs 7.6±1.1 cm/sec respectively, p=0.001). In the entire study population, LAVI exhibited positive relationships with LVMI (r=0.405, p<0.0001), 24-hour pulse pressu ...
A Neonate with Berry Syndrome (AP Window with Interrupted Aortic
... most affected infants die shortly after birth. In all, from one third to half of patients with AP window have a major associated cardiac anomaly, including the above and ventricular septal defect (VSD), tetra logy of fallot, transposition of the great arteries, anomalous origin of a coronary artery, ...
... most affected infants die shortly after birth. In all, from one third to half of patients with AP window have a major associated cardiac anomaly, including the above and ventricular septal defect (VSD), tetra logy of fallot, transposition of the great arteries, anomalous origin of a coronary artery, ...
A criss-cross heart
... criss-cross heart with superior-inferior relation of the ventricles, juxtaposition of the atrial appendages, VSD, severe sub-aortic (discrete sub-aortic membrane), and mild pulmonary stenosis creating a pressure gradient of 106 and 30 mmHg, respectively. Corrective biventricular repair including the ...
... criss-cross heart with superior-inferior relation of the ventricles, juxtaposition of the atrial appendages, VSD, severe sub-aortic (discrete sub-aortic membrane), and mild pulmonary stenosis creating a pressure gradient of 106 and 30 mmHg, respectively. Corrective biventricular repair including the ...
Chronic Thromboembolic Pulmonary Hypertension
... pulmonary arteries due to unresolved pulmonary embolism [with pulmonary hypertension]” ...
... pulmonary arteries due to unresolved pulmonary embolism [with pulmonary hypertension]” ...
Chapter 12
... – Passageway connecting pulmonary artery to aorta, avoiding fetal lungs – Failure to close causes oxygenated blood to recycle through the lungs • Overburdens pulmonary circulation • Makes heart work harder • One of the most common cardiac anomalies ...
... – Passageway connecting pulmonary artery to aorta, avoiding fetal lungs – Failure to close causes oxygenated blood to recycle through the lungs • Overburdens pulmonary circulation • Makes heart work harder • One of the most common cardiac anomalies ...
EISENMENGER SYNDROME
... PHYSIOLOGICAL CHANGES AFTER BIRTH Reasons for sudden decrease in PVR – Breathing causes expansion of lungs & pulmonary vessels – straightening ...
... PHYSIOLOGICAL CHANGES AFTER BIRTH Reasons for sudden decrease in PVR – Breathing causes expansion of lungs & pulmonary vessels – straightening ...
EISENMENGER SYNDROME
... correlated histologically with collateral vessels seen in posttricuspid communications. ...
... correlated histologically with collateral vessels seen in posttricuspid communications. ...
Atrial septal defect
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small.A ""shunt"" is the presence of a net flow of blood through the defect, either from left to right or right to left. The amount of shunting present, if any, determines the hemodynamic significance of the ASD. A ""right-to-left-shunt"" typically poses the more dangerous scenario.During development of the fetus, the interatrial septum develops to separate the left and right atria. However, a hole in the septum called the foramen ovale, allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A layer of tissue called the septum primum acts as a valve over the foramen ovale during fetal development. After birth, the pressure in the right side of the heart drops as the lungs open and begin working, causing the foramen ovale to close entirely. In approximately 25% of adults, the foramen ovale does not entirely seal. In these cases, any elevation of the pressure in the pulmonary circulatory system (due to pulmonary hypertension, temporarily while coughing, etc.) can cause the foramen ovale to remain open. This is known as a patent foramen ovale (PFO), which is a type of atrial septal defect.