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*  Fetal aortic stenosis
The atrial septum is removed, the aortic arch is reconstructed to remove any hypoplasia, and then the main pulmonary artery is ... A balloon atrial septostomy is also done. This ensures that there is enough of a connection between the two atria of the heart ...
*  Congenital heart defect
Cells in part of the septum primum die creating a hole while muscle cells, the "septum secundum", grow along the right atrial ... The septum is a wall of tissue which separates the left heart from the right heart. Defects in the interatrial septum or the ... As the lungs expand, blood flows easily through the lungs and the membranous portion of the foramen ovale (the septum primum) ... Aortic stenosis Atrial septal defect (ASD) Atrioventricular septal defect (AVSD) Bicuspid aortic valve Cardiomyopathy Complete ...
*  Hypoplastic right heart syndrome
... atrial and/or ventricular septal defect, tricuspid atresia, hypoplastic left and right heart. When you have hypoplastic right ... which aid in different heart development features like the valves and septum, and other substances, such as retinoid and folic ...
*  Transesophageal echocardiogram
... atrial septum, left atrial appendage, and coronary arteries. TEE has a very high sensitivity for locating a blood clot inside ...
*  OSR1
... regulates atrial septum formation in the heart. Osr1 is expressed in the dorsal atrial wall, from which the primary atrial ... These pathologies occur in the presence of other transcription factors important for atrial septum formation such as Nkx2.5, ... septum will emerge, and later in the septum and left venous valve leaflet. It is also present in the mesothelium of the ...
*  Dextro-Transposition of the great arteries
An atrial septectomy is the surgical removal of the atrial septum; this is performed when a patent foramen ovale ( PFO ), or ... or atrial septal defect ( ASD ) and inflated to enlarge the opening in the atrial septum; this creates a shunt which allows a ... The foramen ovale is a hole in the atrial septum which allows blood from the right atrium to flow into the left atrium; after ... Differences in the shape of the atrial septum and/or ventricular outflow tracts affect the relative positions of the aorta and ...
*  Heart development
When forming intra-atrial septa, atrio-ventricular valves will begin to grow. An intra-muscular ventricular septum begins to ... these valves are large but the left venous valve and the septum spurium fuse with the developing atrial septum. The upper right ... The remains of the upper septum primum, will become the valves of the foramen ovale. The passage between the two atrial ... This crest is the first part of the septum primum. The two ends of the septum extend into the interior of the endocardial ...
*  Murray S. Hoffman
"Partial anomalous pulmonary venous drainage associated with mitral stenosis with an intact atrial septum. A distinctive ... "Atrial septal defect experiences in the clinical evaluation of 15 consecutive cases of the secundum variety". The American ... a concept of the electrocardiographic findings in atrial septal defect". The American Journal of Medicine. 22 (5): 784-790. doi ...
*  Myxoma
The surgeon removes the myxoma, along with at least 5 surrounding millimeters of atrial septum. The septum is then repaired, ... The most common location for attachment of the stalk is the fossa ovalis region of the interatrial septum. An atrial myxoma may ... Atrial myxoma Cutaneous myxoma Odontogenic myxoma Myxomas are usually located in either the left or right atrium of the heart; ... A left atrial myxoma will cause an increase in pulmonary capillary wedge pressure. The differential diagnosis include other ...
*  Fossa ovalis (heart)
This change in pressure pushes the septum primum against the atrial septum, closing the foramen. The septum primum and atrial ... If the atrial septum does not close properly, it leads to a patent foramen ovale (PFO). This type of defect generally works ... The fossa ovalis is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between ... A flap of tissue called the septum primum acts as a valve over the foramen ovale during that time. After birth, the ...
*  IgG4-related disease
"IgG4-related sclerosing disease involving the superior vena cava and the atrial septum of the heart". Yonsei Medical Journal. ...
*  Mitral valve stenosis
The ideal site for TSP is the region of the fossa ovalis in the inter-atrial septum. Occasionally, however, the sharp needle ... When atrial fibrillation develops, the atrial kick is lost (since it is due to the normal atrial contraction).[citation needed ... The loss of the atrial kick due to atrial fibrillation ( i.e. blood cannot flow into the left ventricle thus accumulating in ... The interatrial septum is punctured and the catheter passed into the left atrium using a "trans-septal technique." The balloon ...
*  Actin
Certain defects of the atrial septum have been described recently that could also be related to these mutations. Two cases of ... "Alpha-cardiac actin mutations produce atrial septal defects". Human Molecular Genetics. 17 (2): 256-65. doi:10.1093/hmg/ddm302 ...
*  Primary interatrial foramen
... and disappears with the formation of the atrial septum. The septum primum, a septum which grows down to separate the primitive ... It progressively decreases in size as the septum grows downwards, and disappears with the formation of the atrial septum. The ... Failure of the septum primum to fuse with the endocardial cushion can lead to an ostium primum atrial septal defect. This is ... The primary interatrial foramen is the gap between the septum primum and the septum intermedium, which gets progressively ...
*  Friedrich Bidder
Ganglia located at the lower end of the atrial septum; sometimes called the ventricular ganglia. "Bidder's organ": A spherical ...
*  Situs ambiguus
In addition, the atrial septum which distinguishes the 2 atria is absent. These impairments, in addition to congestion in the ... Right-atrial and left-atrial isomerism and associated pulmonary issues are treated in a series of steps based on the severity ... Left atrial appendage isomerism, also called left atrial isomerism, is a cardiac development defect in which the heart has 2 ... Right atrial appendage isomerism, also called right atrial isomerism, is a cardiac development defect in which the heart has ...
*  Valve of inferior vena cava
Streaming this blood across the atrial septum via the foramen ovale increases the oxygen content of blood in the left atrium. ... and in the extent to which it encroaches on neighboring structures such as the atrial septum. At one end of the spectrum, the ... Very rarely, such a configuration of a large eustachian valve may mimic a right atrial cystic tumor. The superior vena cava ( ... Malaterre HR, Kallee K, Perier Y. Eustachian valve mimicking a right atrial cystic tumor. Int J Card Imaging 2000;16(4):305-7. ...
*  Foramen secundum
This holds true even during atrial diastole, when the pressure is significantly less than atrial systole. The septum primum is ... This defect can arise as a result of defects of the septum primium and the septum secundum. For the septum primum, the problem ... The repair can be made by suturing the atrial septum or, if the foramen secundum is large in size, a patch can be made from the ... For the septum secundum, its inadequate growth can cause atrial septal defect since it is supposed to grow and eventually ...
*  Hypoplastic left heart syndrome
In fetuses with hypoplastic left ventricles and an intact interatrial septum, percutaneous atrial septostomy has been attempted ... a genetic syndrome or those with a highly restrictive atrial septum.[citation needed]) For patients without these additional ... The neonate is reliant on blood flowing through an atrial septal defect to mix oxygenated and deoxygenated blood, and on a ... In neonates with a small atrial septal defect, termed "restrictive", there is inadequate mixing of oxygenated and deoxygenated ...
*  FAM227a
Gene deletion of FAM227A was linked to lung abnormality, atrial septum defect, small size for gestational age, and ...
*  MitraClip
The integration of both imaging techniques is especially valuable during the puncture of the atrial septum and while grasping ...
*  Senning procedure
... had developed a palliative procedure which consisted in opening the atrial septum. Being that in TGA the atrial septum prevents ... in which the atrial septum is excised, and the atrial baffle is created by the placement of a single elephant trunk-shaped ... After this complex plastic reconstruction using flaps from the right atrial tissue and the interatrial septum and lets the ... This procedure, a form of atrial switch, was developed and first performed by Senning in 1957 as a treatment for d-TGA (dextro- ...
*  Cardiac pacemaker
... within the atrial septum. If the AV node also fails, Purkinje fibers are occasionally capable of acting as the default or " ... which is an area between the left atrium and the right ventricle within the atrial septum, will take over the pacemaker ... A specialized portion of the heart, called the sinoatrial node (SA node), is responsible for atrial propagation of this ...
*  Atrioventricular septal defect
In the partial AVSD, there is a defect in the primum or inferior part of the atrial septum but no direct intraventricular ... and inferior endocardial cushions with the mid portion of the atrial septum and the muscular portion of the ventricular septum ... If there is a defect in the septum, it is possible for blood to travel from the left side of the heart to the right side of the ... When there are holes in the septum that divide the four chambers of the heart the oxygen-rich blood and oxygen-poor blood mix ...
*  Spina vestibuli
"Development and structure of the atrial septum", at bmjjournals.com. ...
*  Atrioventricular node
... such as atrial fibrillation or atrial flutter. The AV node's normal intrinsic firing rate without stimulation (such as that ... The AV node is quite compact (~1 x 3 x 5 mm). The AV node lies at the lower back section of the interatrial septum near the ... The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus, which conducts the ... This is the property of the AV node that prevents rapid conduction to the ventricle in cases of rapid atrial rhythms, ...
*  Ostium primum atrial septal defect
The ostium primum atrial septal defect (also known as an endocardial cushion defect) is a defect in the atrial septum at the ... Patients with Atrial Septal Defects may have Atrial Fibrillation, Atrial Tachycardia, or Atrial Flutter, but these arrythmias ... which is the portion of the heart where the atrial septum meets the ventricular septum and the mitral valve meets the tricuspid ... A defect in the ostium primum is occasionally classified as an atrial septal defect, but it is more commonly classified as an ...