Atrial septum. Medical search

The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.

This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick muscular ventricular septum between the two HEART VENTRICLES.

Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects.

A condition caused by underdevelopment of the whole left half of the heart. It is characterized by hypoplasia of the left cardiac chambers (HEART ATRIUM; HEART VENTRICLE), the AORTA, the AORTIC VALVE, and the MITRAL VALVE. Severe symptoms appear in early infancy when DUCTUS ARTERIOSUS closes.

Abnormalities in any part of the HEART SEPTUM resulting in abnormal communication between the left and the right chambers of the heart. The abnormal blood flow inside the heart may be caused by defects in the ATRIAL SEPTUM, the VENTRICULAR SEPTUM, or both.

The chambers of the heart, to which the BLOOD returns from the circulation.

A transient dilatation of the lymphatic vessels.

The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.

GRAY MATTER structures of the telencephalon and LIMBIC SYSTEM in the brain, but containing widely varying definitions among authors. Included here is the cortical septal area, subcortical SEPTAL NUCLEI, and the SEPTUM PELLUCIDUM.

The muscular structure separating the right and the left lower chambers (HEART VENTRICLES) of the heart. The ventricular septum consists of a very small membranous portion just beneath the AORTIC VALVE, and a large thick muscular portion consisting of three sections including the inlet septum, the trabecular septum, and the outlet septum.

A triangular double membrane separating the anterior horns of the LATERAL VENTRICLES of the brain. It is situated in the median plane and bounded by the CORPUS CALLOSUM and the body and columns of the FORNIX (BRAIN).

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.

A benign neoplasm derived from connective tissue, consisting chiefly of polyhedral and stellate cells that are loosely embedded in a soft mucoid matrix, thereby resembling primitive mesenchymal tissue. It occurs frequently intramuscularly where it may be mistaken for a sarcoma. It appears also in the jaws and the skin. (From Stedman, 25th ed)

A species of gram-positive bacteria in the STREPTOCOCCUS MILLERI GROUP. It is commonly found in the oropharnyx flora and has a proclivity for abscess formation in the upper body and respiratory tract.

The partition separating the two NASAL CAVITIES in the midplane. It is formed by the SEPTAL NASAL CARTILAGE, parts of skull bones (ETHMOID BONE; VOMER), and membranous parts.

Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.

The veins that return the oxygenated blood from the lungs to the left atrium of the heart.

Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.

Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.

An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.

A condition in which the FORAMEN OVALE in the ATRIAL SEPTUM fails to close shortly after birth. This results in abnormal communications between the two upper chambers of the heart. An isolated patent ovale foramen without other structural heart defects is usually of no hemodynamic significance.

Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.

Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.

Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.

Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.

Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.

A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).

An infant during the first month after birth.

The visualization of tissues during pregnancy through recording of the echoes of ultrasonic waves directed into the body. The procedure may be applied with reference to the mother or the fetus and with reference to organs or the detection of maternal or fetal disease.

Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.

The hollow, muscular organ that maintains the circulation of the blood.

A set of surgical procedures performed to establish sufficient outflow to the systemic circulation in individuals with univentricular congenital heart malformations, such as HYPOPLASTIC LEFT HEART SYNDROME, and MITRAL VALVE atresia, associated with systemic outflow obstruction. Follow-on surgeries may be performed and consist of a HEMI-FONTAN PROCEDURE as the stage 2 Norwood procedure and a FONTAN PROCEDURE as the stage 3 Norwood procedure.

The study of the heart, its physiology, and its functions.

Special hospitals which provide care for ill children.

A congenital anomaly caused by the failed development of TRUNCUS ARTERIOSUS into separate AORTA and PULMONARY ARTERY. It is characterized by a single arterial trunk that forms the outlet for both HEART VENTRICLES and gives rise to the systemic, pulmonary, and coronary arteries. It is always accompanied by a ventricular septal defect.

The arterial trunk arising from the fetal heart. During development, it divides into AORTA and the PULMONARY ARTERY.

An opening in the wall between the right and the left upper chambers (HEART ATRIA) of a fetal heart. Oval foramen normally closes soon after birth; when it fails to close the condition is called PATENT OVAL FORAMEN.

Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.

It is a form of protection provided by law. In the United States this protection is granted to authors of original works of authorship, including literary, dramatic, musical, artistic, and certain other intellectual works. This protection is available to both published and unpublished works. (from Circular of the United States Copyright Office, 6/30/2008)

A developmental abnormality in which the spiral (aortopulmonary) septum failed to completely divide the TRUNCUS ARTERIOSUS into ASCENDING AORTA and PULMONARY ARTERY. This abnormal communication between the two major vessels usually lies above their respective valves (AORTIC VALVE; PULMONARY VALVE).

A uroplakin subtype that heterodimerizes with UROPLAKIN IA to form a component of the asymmetric unit membrane found in urothelial cells.

The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.

Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.

A congenital heart defect characterized by the narrowing or complete absence of the opening between the RIGHT VENTRICLE and the PULMONARY ARTERY. Lacking a normal PULMONARY VALVE, unoxygenated blood in the right ventricle can not be effectively pumped into the lung for oxygenation. Clinical features include rapid breathing, CYANOSIS, right ventricle atrophy, and abnormal heart sounds (HEART MURMURS).

Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.

An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.

Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).

Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.

Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.

Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.

Morphological basis for the study of the interatrial septum in the human fetus. (1/81)

OBJECTIVE: To describe morphological features of the interatrial septum in normal fetuses, especially foramen ovale (FO) and septum primum (SP), in order to compare septum primum excursion with foramen ovale diameter. METHODS: Septum primum excursion (SPE) toward the left atrium (LA) and foramen ovale diameter (FOD) were measured in the hearts of ten formaldehyde-fixed human fetuses ranging from 28 to 36 weeks of gestation. Histological sections were obtained from the foramen ovale (FO), septum primum (SP), septum secundum (SS), left atrium (LA), and right atrium (RA). RESULTS: FOD and SPE measurements were the following: FOD 3.1-3.5 mm and SPE 2.8-3.1 mm in three fetuses with presumed gestational age (GA) of 28 weeks; FOD 3.3-3.5 mm, and SP excursion 4.0-5.0 mm in four fetuses with presumed GA of 34 weeks, plus FOD 3.3-4.5 mm and SPE 6.0-9.0 in three fetuses with presumed GA of 36 weeks. Cardiac muscular fibers were identified in both the septum primum and secundum. CONCLUSION: Based on its muscular components, it may be suggested that SP is active in character, influencing blood flow through the FO, SP mobility, and its excursion into the LA. (+info)

Migraineurs with patent foramen ovale have larger right-to-left shunt despite similar atrial septal characteristics. (2/81)

The objective of the study was to assess differences in proportion of large right-to-left shunt (RLS) and atrial septal characteristics between migraineurs and non-migraineurs referred for transcatheter closure of patent foramen ovale (PF0). This retrospective study took place in a large metropolitan medical centre. The patients were migraineurs with aura (n=52), migraineurs without aura (n=19) and non-migraineurs (n=149). RLS was evaluated before closure using bilateral power m-mode transcranial Doppler at rest and after calibrated, sustained Valsalva manoeuvre, and graded with a validated 0-5 scale. Intracardiac echocardiography was used to assess atrial septal characteristics. Migraineurs had a higher proportion of large RLS (Grade IV or V) than nonmigraineurs at rest and after calibrated Valsalva (rest, p=0.04; Valsalva, p=0.01). Atrial septal characteristics were similar between groups. Migraine is associated with larger RLS at rest and strain; however migraine status does not predict PFO characteristics. (+info)

Completely endoscopic removal of a dislocated Amplatzer atrial septal defect closure device. (3/81)

Surgical treatment of residual shunts after transcatheter occlusion of atrial septal defect or patent foramen ovale is reported in approximately one to two percent of these percutaneous interventions. Minimally invasive surgery on the atrial septum is getting more and more common but little data is available on Amplatzer device explantation through limited access. No completely endoscopic device removal has been described previously. We report a case of a 57-year-old woman in whom an Amplatzer device was removed in a robotic totally endoscopic fashion through ports only using the daVinci telemanipulation system. (+info)

The structure and components of the atrial chambers. (4/81)

We discuss the implications of accurate knowledge of the human atrial chambers for those seeking to model atrial structure, and correlate the muscular activity with electrical signals. We stress first the importance of describing atrial components in attitudinally appropriate fashion, a feature sadly ignored by generations of morphologists. When considered relative to the body, the right atrium is positioned anteriorly relative to its alleged left-sided counterpart. We then described how each atrium possesses a venous component, an appendage, a vestibule, these parts being supported by the body of the atrium, and how the two chambers are separated by the septum. We extend this information by describing the detailed structure of each atrium, and then emphasise that it is only the floor of the oval fossa, and its antero-inferior rim, that are true septal structures. The so-called 'septum secundum' is the superior interatrial fold. Emphasis is then given to the muscular connections between the atriums, these unions obviously underscoring the potential for interatrial conduction. We then continue by discussing the structure of the atrial walls, which vary markedly in their thickness. It is the alignment of the myocytes within these walls that determines the velocity of conduction through them. In this setting, we also discuss the morphological features that distinguish between working myocytes and the myocytes of the conduction system, stressing the importance of rules established almost 100 years ago. (+info)

Septal atrial pacing for the prevention of atrial fibrillation. (5/81)

AIMS: Atrial fibrillation (AF) produces significant morbidity and mortality. The current method of permanent pacing of the right atrium (RA) may cause delayed interatrial conduction and predispose to AF. We hypothesized that atrial septal pacing would reduce AF compared with high RA pacing. METHODS AND RESULTS: The patients were randomized into two groups. After randomization, patients received a dual-chamber rate-responsive device capable of mode-switching with advanced telemetry features. Devices were programmed in a standardized manner. To be eligible, the patients were required to have a conventional indication for a permanent pacemaker and recurrent paroxysmal AF. Group 1 was paced from high RA and Group 2 was paced from the atrial septum. Analysis of 43 patients who have completed 6 months of follow-up and 22 patients who completed 12 months of follow-up showed no significant differences in the number of mode-switching episodes or in AF burden between groups (P = NS by Mann-Whitney) although there was a trend for less AF with septal pacing. There were no differences in thresholds, sensing, or lead impedance. Lead parameters remained stable over time and there were no displacements of the electrodes after implantation. No patient experienced lead-related complications. A significant variability in AF burden was noted in this patient population. CONCLUSIONS: Implantation of an atrial-active fixation lead on the atrial septum is safe and feasible. However, this study showed no significant difference between septal pacing and high atrial pacing, using the endpoints of AF duration and number of AF episodes. (+info)

Right atrial preventive and antitachycardia pacing for prevention of paroxysmal atrial fibrillation in patients without bradycardia: a randomized study. (6/81)

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The change in the fluoroscopy-guided transseptal puncture site and difficult punctures in catheter ablation of recurrent atrial fibrillation. (7/81)

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Successful ablation of focal left atrial tachycardia using Stereotaxis Niobe remote magnetic navigation system. (8/81)

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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 ...

https://en.wikipedia.org/wiki/Dextro-Transposition_of_the_great_arteries

"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 ...

https://en.wikipedia.org/wiki/Murray_S._Hoffman

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 ...

https://en.wikipedia.org/wiki/Myxoma

"IgG4-related sclerosing disease involving the superior vena cava and the atrial septum of the heart". Yonsei Medical Journal. ...

https://en.wikipedia.org/wiki/IgG4-related_disease

... 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 ...

https://en.wikipedia.org/wiki/Primary_interatrial_foramen

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 ...

https://en.wikipedia.org/wiki/Atrioventricular_septal_defect

Congenital defects such as a thinned atrial septum, ventricular septal defects, patent ductus arteriosus, dysplastic kidney and ...

https://en.wikipedia.org/wiki/ZTTK_syndrome

... 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.[14] It is also present in the mesothelium of the ...

https://en.wikipedia.org/wiki/OSR1

Septum formation of the atrial in common) *17:39, 7 May 2013 (diff , hist) . . (-2)‎ . . Heart development ‎ (→‎Truncus septum ... Heart development ‎ (→‎Septum formation of the atrial in common) *17:41, 7 May 2013 (diff , hist) . . (+237)‎ . . Heart ... Heart development ‎ (→‎Septum formation of the atrial in common) *17:38, 7 May 2013 (diff , hist) . . (+42)‎ . . Heart ...

https://en.wikipedia.org/wiki/Special:Contributions/Alysha1

... opening the aortic or pulmonary fetal heart valves to allow blood flow Atrial septostomy - opening the inter-atrial septum of ...

https://en.wikipedia.org/wiki/Fetendo

Gerbode also known as left ventricular to right atrial communication Due to absence of Atrioventricular septum. Heart anatomic ... Ventricular septum defect in infants is initially treated medically with cardiac glycosides (e.g., digoxin 10-20 μg/kg per day ... If this does not occur properly it can lead to an opening being left within the ventricular septum. It is debatable whether all ... The ventricular septum consists of an inferior muscular and superior membranous portion and is extensively innervated with ...

https://en.wikipedia.org/wiki/Ventricular_septal_defect

... performed his first successful operation using an extracorporeal circuit in an 18-year-old woman who had a large atrial septum ...

https://en.wikipedia.org/wiki/Minimized_extracorporeal_circulation

... which involved using the atrial septum to create an intratrial baffle that redirected bloodflow at the atrial level; Senning ... through which the congenital or palliative atrial septal defect (ASD) is repaired; where a Rashkind balloon atrial septostomy ... The atrial switch, which was an attempt to correct the physiology of transposition, had significant shortcomings. The arterial ... If there is a VSD which has not yet been repaired, this is performed via the atrial incision and tricuspid valve, using sutures ...

https://en.wikipedia.org/wiki/Arterial_switch_operation

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 ...

https://en.wikipedia.org/wiki/Situs_ambiguus

Repair of atrial and ventricular septa with prosthesis (35.6) Repair of atrial and ventricular septa with tissue graft (35.7) ... Other and unspecified repair of atrial and ventricular septa (35.8) Total repair of certain congenital cardiac anomalies (35.9 ... of nasal septum (21.6) Turbinectomy (21.7) Reduction of nasal fracture (21.8) Repair and plastic operations on the nose (21.81 ... Atrial cardioversion (99.62) Other electric countershock of heart (99.63) Closed chest cardiac massage (99.64) Carotid sinus ...

https://en.wikipedia.org/wiki/ICD-9-CM_Volume_3

This creates an atrial septal defect (ASD). This article incorporates text in the public domain from page 512 of the 20th ... Shortly after birth, it fuses with the septum primum to form the interatrial septum, and the foramen ovale is closed. The fossa ... It grows to the right of the septum primum, which has already started growing. It grows down towards the septum intermedium ... Sometimes, the fusion of the septum secundum to the septum intermedium is incomplete, and the upper part of the foramen remains ...

https://en.wikipedia.org/wiki/Septum_secundum

Lower left atrial compliance reduces the left atrium venous return and as a consequence causes a reduction in left ventricular ... As the right ventricle receives more volume, it pushes the septum into the left ventricle further reducing its volume in turn. ... The increased blood volume dilates the right atrium, reducing the compliance of the left atrium due to their shared septum. ... Pulsus paradoxus may not be seen with cardiac tamponade if an atrial septal defect or significant aortic regurgitation is also ...

https://en.wikipedia.org/wiki/Pulsus_paradoxus

Certain defects of the atrial septum have been described recently that could also be related to these mutations.[170][171] ... "Alpha-cardiac actin mutations produce atrial septal defects". Human Molecular Genetics. 17 (2): 256-265. doi:10.1093/hmg/ ...

https://en.m.wikipedia.org/wiki/Actin

Instead of cutting straight across the back of the atrial chambers of the donor heart, he would avoid damage to the septum and ...

https://en.wikipedia.org/wiki/Christiaan_Barnard

There are two types of this procedure: balloon atrial septostomy (also called endovascular atrial septostomy, Rashkind atrial ... Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ... Atrial septostomy is a surgical procedure in which a small hole is created between the upper two chambers of the heart, the ... Atrial septostomy relieves some of this pressure, but at the cost of lower oxygen levels in the blood (hypoxia). As with d-TGA ...

https://en.wikipedia.org/wiki/Atrial_septostomy

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 ...

https://en.wikipedia.org/wiki/Fetal_aortic_stenosis

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) ... Mutations of a heart muscle protein, α-myosin heavy chain (MYH6) are associated with atrial septal defects. Several proteins ...

https://en.wikipedia.org/wiki/Congenital_heart_defects

atrial septum development. • regulation of heart rate. • DNA damage response, signal transduction by p53 class mediator ... ventricular septum development. • positive regulation of protein export from nucleus. • response to steroid hormone. • cellular ... cardiac septum morphogenesis. • negative regulation of transcription from RNA polymerase II promoter. • peptidyl-lysine ...

https://en.wikipedia.org/wiki/Mdm2

These thickenings will go on to fuse and remodel to eventually form the valves and septa of the mature adult heart. A problem ... Upon sectioning of the heart the atrioventricular endocardial cushions can be observed in the lumen of the atrial canal as two ... refer to a subset of cells in the development of the heart that play a vital role in the proper formation of the heart septa. ... cushions are a subset of cells found in the developing heart tube that will give rise to the heart's primitive valves and septa ...

https://en.wikipedia.org/wiki/Endocardial_cushions

The delay in the AV node forms much of the PR segment on the ECG, and part of atrial repolarization can be represented by the ... Then the signals travel to the atrioventricular node (AV node), which is located in the interatrial septum. After a delay, the ... Atrial repolarization occurs and is masked during the QRS complex by ventricular depolarization on the ECG. The last event of ... The bundle of His splits into two branches in the interventricular septum: the left bundle branch and the right bundle branch. ...

https://en.wikipedia.org/wiki/Electrical_conduction_system_of_the_heart

INTER-ATRIAL AND INTER-VENTRICULAR SEPTA *↑ TRANSPOSTION OF THE GREAT VESSELS *↑ What is patent ductus arteriosus (PDA)? ...

https://ml.wikipedia.org/wiki/അംഗവൈകല്യം

... 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, and conducts the ... This is the property of the AV node that prevents rapid conduction to the ventricle in cases of rapid atrial rhythms, ...

https://en.wikipedia.org/wiki/Atrioventricular_node

The decreased right atrial pressure and the increased left atrial pressure pushes the septum primum against the septum secundum ...

https://te.wikipedia.org/wiki/పిండం

Ventricular septum (septum ventriculorum; interventricular septum) *muscular ventricular septum. *membranous ventricular septum ... atrial canal. Страница 509[редактиране , редактиране на кода]. *sinus venosus *crista terminalis of His ...

https://bg.wikipedia.org/wiki/Списък_на_темите_в_Анатомията_на_Грей:_V._Ангиология

Presumably, this arises from an unequal growth of the aorticopulmonary septum (aka pulmonary outflow septum). The aorta is too ... a patent foramen ovale or atrial septal defect, in which case the syndrome is sometimes called a pentalogy of Fallot an ... Play media The main anatomic defect in TOF is the anterior deviation of the pulmonary outflow septum. This defect results in ... Embryology studies show that it is a result of anterior malalignment of the aorticopulmonary septum, resulting in the clinical ...

https://en.wikipedia.org/wiki/Tetralogy_of_Fallot

pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ... interatrial septum. *pectinate muscles. *terminal sulcus. *ventricles *interventricular septum. *trabeculae carneae. *chordae ...

https://en.wikipedia.org/wiki/Interatrial_sulcus

Right atrial and right ventricular leads as visualized under x-ray during a pacemaker implant procedure. The atrial lead is the ... one passing through the vena cava and the right atrium into the right ventricle to stimulate the septum, and another passing ... as in atrial fibrillation. The equivalent atrial pacing mode is AAI or AAIR which is the mode of choice when atrioventricular ... An ECG in a person with an atrial pacemaker. Note the circle around one of the sharp electrical spike in the position where one ...

https://en.m.wikipedia.org/wiki/Artificial_cardiac_pacemaker

Pulmonary veins attach to the left atrium separately, and also the opening to the pulmonary veins are separated by a septum.[68 ... It is located in the endocardium of the atrial surface of the right atrioventricular valve. It is not covered by connective ... The atria, ventricles, and septum are supplied of blood by this modality. The deep branches of the coronary arteries found ... The right atrioventricular valve is fixed to the interventricular septum, by a thick muscular stock, which prevents back-flow ...

https://en.m.wikipedia.org/wiki/Common_ostrich

MV: Mitral valve, TV: Tricuspid valve, AV: Aortic valve, Septum: Interventricular septum. Continuous lines demarcate septum and ... pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... A septum begins to form between what will later become the ascending aorta and pulmonary tract. As the septum forms, the two ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ...

https://en.wikipedia.org/wiki/Heart_valve

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ...

https://ml.wikipedia.org/wiki/ഫലകം:Cardiac_procedures

The difference between aortic and right atrial pressure accounts for blood flow in the circulation.[16] When the left ventricle ... The smooth muscle of the great arteries and the population of cells that form the aorticopulmonary septum that separates the ... A failure of the aorticopulmonary septum to divide the great vessels results in persistent truncus arteriosus. ...

https://en.m.wikipedia.org/wiki/Aorta

MV: Mitral valve, TV: Tricuspid valve, AV: Aortic valve, Septum: Interventricular septum. Continuous lines demarcate septum and ... Diastole ends with atrial contraction, which ejects the final 30% of blood that is transferred from the left atrium to the left ... A septum begins to form between what will later become the ascending aorta and pulmonary tract. As the septum forms, the two ... This amount of blood is known as the end diastolic volume (EDV), and the mitral valve closes at the end of atrial contraction ...

https://en.m.wikipedia.org/wiki/Heart_valve

Atrial. *Right marginal. *Posterior interventricular. *Left coronary: *Anterior interventricular. *Left circumflex (Left ...

https://en.wikipedia.org/wiki/Vascular

Atrial. *Right marginal. *Posterior interventricular. *Left coronary: *Anterior interventricular. *Left circumflex (Left ...

https://en.wikipedia.org/wiki/Arterial_tree

Left atrial contraction (left atrial systole) (during left ventricular diastole) causes added blood to flow across the mitral ... pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ... It is smaller at the end of atrial systole due to the contraction of the left atrium around it, like a sphincter. This ...

https://en.wikipedia.org/wiki/Mitral

Rubella can also lead to atrial and ventricular septal defects in the heart. If exposed to rubella in the second trimester, the ... These birth defects included neural tube defects, malformations of the cardiac septa, anomalies of arteries and veins, and ... Around a 5% increase in the incidence of ventricular septal defects, atrial septal defects, and patent ductus arteriosus in ... Congenital heart defects include patent ductus arteriosus, atrial septal defect, ventricular septal defect, and tetralogy of ...

https://en.wikipedia.org/wiki/Congenital_disorder

Left atrial dimension. LA. Range 24 - 40 mm[16] Fractional shortening (FS) is the fraction of any diastolic dimension that is ... Its posterior wall is formed by the ventricular septum, which bulges into the right ventricle, so that a transverse section of ... pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ...

https://en.wikipedia.org/wiki/Ventricle_(heart)

nasal septum Nasal septum deviation. Nasal septum perforation. Nasal septal hematoma. tonsil. Tonsillitis. Adenoid hypertrophy ... absence of left atrial (LA) hypertension *pulmonary artery wedge pressure , 18 mmHg (obtained by pulmonary artery ...

https://en.wikipedia.org/wiki/ARDS

... such as an atrial septal defect (ASD). The ASD creates a left to right shunt that increases the blood flow to the right side of ... due to an increase in blood flow into the right ventricle with displacement of the interventricular septum to the left, ...

https://en.wikipedia.org/wiki/Split_S2

ആറിക്കിൾ (interatrial septum, musculi pectinati, sulcus terminalis) · വെൻട്രിക്കിൾ (interventricular septum, trabeculae carneae ... pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve ... chordae tendineae, papillary muscle) · വാൽവുകൾ · cusps · Atrioventricular septum cardiac skeleton ...

https://ml.wikipedia.org/wiki/Purkinje_fibers

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ... "Cryoablation for the Treatment of Atrial Fibrillation". Retrieved May 23, 2015.. *^ Peter W. Macfarlane, Adriaan van Oosterom, ...

https://en.wikipedia.org/wiki/Electrophysiology_study

... obat dapat digunakan pada anjing dan kucing dengan lesi shunting kiri-ke-kanan seperti defek septum ventrikel untuk mengurangi ... "Comparative effects of amlodipine and benazepril on Left Atrial Pressure in Dogs with experimentally-induced Mitral Valve ...

https://id.wikipedia.org/wiki/Amlodipin

The cardiac skeleton also includes the separating septa of the heart chambers - the interventricular septum and the ... With support from collagen, atrial fibrillation should never deteriorate to ventricular fibrillation. Collagen is layered in ... atrioventricular septum. Collagen contribution to the measure of cardiac performance summarily represents a continuous ...

https://en.m.wikipedia.org/wiki/Collagen

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ...

https://en.wikipedia.org/wiki/Heart_transplantation

Left atrial dimension. LA. Range 24 - 40 mm[16]. Fractional shortening (FS) is the fraction of any diastolic dimension that is ... Its posterior wall is formed by the ventricular septum, which bulges into the right ventricle, so that a transverse section of ... The thickness of the interventricular septum.. 8.3 mm,[15]. Range 7 - 11 mm[16]. ... The term "interventricular" means between the ventricles (for example the interventricular septum), while "intraventricular" ...

https://en.m.wikipedia.org/wiki/Right_ventricle

This is similar to the re-entrant circuits that are the cause of atrial flutter and the re-entrant forms of supraventricular ... this is consistent with VT originating from the right ventricle or interventricular septum.[10] ...

https://en.m.wikipedia.org/wiki/Polymorphic_ventricular_tachycardia

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ...

https://en.wikipedia.org/wiki/Mitral_valve_repair

Atrial *Septum primum. *Foramen secundum. *Primary interatrial foramen. *Septum secundum. *Foramen ovale ...

https://en.wikipedia.org/wiki/Embryology

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ... "Evaluation and management of the adult patient with transposition of the great arteries following atrial-level (Senning or ...

https://en.wikipedia.org/wiki/Mustard_procedure

... by fusion of the atrioventricular cushions with the mesenchymal cap on the leading edge of the muscular primary atrial septum. ... Here we report that the primary atrial foramen is surrounded in its entirety by mesenchyme derived from endocardium. A second ... The morphogenesis of this area is of great clinical interest, because of the high incidence of atrial and atrioventricular ... From the stance of morphological description, therefore, there is little thus far to substantiate the existence of an atrial ...

https://www.cardioscience.ox.ac.uk/publications/482162

In this heart defect there is only a malformation the lower portion of the atrial septum, with a complete ventricular septum. ... This disease looks like an atrial septal defect with similar time for surgery between 3 and 5 years of age.. ...

http://www.abcparma.it/english/parz.htm

Old lady suffering from LA Mass occupying the mitral valve orifice with a pedicle attached to the atrial septum causing severe ...

https://www.ctsqena.com/2019/11/08/dutch-heart-team-2019-mission-3rd-day/

... puncturing the inter atrial septum with heavy bore needle during a PTMC procedure the patient was comfortably watching and ... The other day when I was observing my colleague puncturing the inter atrial septum with heavy bore needle during a PTMC ...

https://drsvenkatesan.com/2011/11/06/unresolved-mysteries-in-the-mechanisms-of-cardiac-pain/

The first Canadian procedure was a Watchman™ left-atrial appendage closure (LAAC) performed by Dr. Jacqueline Saw, an ... further enabling cardiologists to achieve transseptal punctures at the optimal location on the septum. ... without which the procedure time may increase as we work to gain left-atrial access, said Dr. Saw. The VersaCross solution is ...

https://www.newswire.ca/news-releases/first-canadian-cardiac-procedure-performed-using-the-all-in-one-versacross-tm-transseptal-solution-888876667.html

Hypoplastic Left Heart Syndrome With Intact or Restrictive Atrial Septum. David W. Jantzen, Anita J. Moon-Grady, Shaine A. ... Hypoplastic Left Heart Syndrome With Intact or Restrictive Atrial Septum. David W. Jantzen, Anita J. Moon-Grady, Shaine A. ... Hypoplastic Left Heart Syndrome With Intact or Restrictive Atrial Septum. A Report From the International Fetal Cardiac ...

http://circ.ahajournals.org/content/136/14/1346/tab-article-info

... an unusual arrangement of atrial appendages, and partially anomalous... ... and partially anomalous pulmonary venous drainage due to a deviated atrial septum. The left atrial appendage could be directly ... Malalignment of the Septum Primum with Abnormally Positioned Left Atrial Appendage. Unusual Combination in a Shones Heart ... 2001) Juxtaposition of the atrial appendages: a clinical series of patients. Pediatr Cardiol 22:121-127PubMedCrossRefGoogle ...

https://link.springer.com/article/10.1007/s00246-006-1364-6

Also known as interatrial septum Explanation of atrial septum ... Find out information about atrial septum. The muscular wall ... Related to atrial septum: interatrial septum, Ventricular septum. atrial septum. [′ā·trē·əl ′sep·təm] (anatomy) The muscular ... Atrial septum , Article about atrial septum by The Free Dictionary https://encyclopedia2.thefreedictionary.com/atrial+septum ... a href=https://encyclopedia2.thefreedictionary.com/atrial+septum,atrial septum,/a,. *Facebook ...

https://encyclopedia2.thefreedictionary.com/atrial+septum

Two atrial septa are formed, both of which contribute to the definitive atrial septum. They are associated with two inter- ... The muscular part of the atrial septum is derived from the septum secundum fused with the septum primum ... The final atrial septum is formed from both septum primum and septum secundum:. ... The final atrial septum is formed from both septum primum and septum secundum:. ...

http://staff.um.edu.mt/acus1/Heart-b.htm

Opening up II: venous return, the atrial septum, the arterial duct, aortopulmonary shunts, and aortopulmonary collaterals ... Opening up II: venous return, the atrial septum, the arterial duct, aortopulmonary shunts, and aortopulmonary collaterals ... Opening up II: venous return, the atrial septum, the arterial duct, aortopulmonary shunts, and aortopulmonary collaterals ...

https://heart.bmj.com/content/83/2/237.info

... ... The additional presence of atrial septum aneurysm (ASA) possibly increases stroke risk, but it remains undetermined which ... may help to distinguish the characteristics of cerebral embolism associated with different features of the interatrial septum ...

https://insights.ovid.com/stro/200608000/00007670-200608000-00021

In its most extreme form, there may be virtually no septum between the two atrial chambers. Atrial septal defect is a ... Defects in the atrial septum may be small or large and occur most commonly in the midportion in the area prenatally occupied by ... Abnormalities of the atrial septum. The presence of a septal defect allows blood to be shunted from the left side of the heart ... Defects lower on the atrial septum may involve the atrioventricular valves and may be associated with incompetence of these ...

https://www.britannica.com/science/cardiovascular-disease

Lipomatous hypertrophy of the atrial septum presenting as a right atrial mass ... Lipomatous Hypertrophy of the Interatrial Septum Presenting with Atrial Arrhythmias Sushruth Edla, MD; Sushruth Edla, MD ... It has been defined as a ,2-cm-thick epicardial fatty deposition in the atrial septum.2 The defining features of LHIS are as ... Recipient(s) will receive an email with a link to Lipomatous Hypertrophy of the Interatrial Septum Presenting with Atrial ...

https://meridian.allenpress.com/thij/article/42/4/403/129871/Lipomatous-Hypertrophy-of-the-Interatrial-Septum

Atrial Septum. When viewed from its right aspect, the atrial septum is comprised of interatrial and atrioventricular ... AS, atrial septum; AoV, aortic valve; LA, left atrium; LAA, left atrial appendage; RA, right atrium. ... AS, atrial septum; AoV, aortic valve; LA, left atrium; LAA, left atrial appendage; RA, right atrium. ... 2-37). Less common attachments include papillary muscle to the septum, septum to septum, or free wall to free wall. In ...

https://www.78stepshealth.us/coronary-artery/b.html

Rose modified his description of the atrial septa extensively. He rejected the idea that the septum intermedium is concerned in ... interventricular septum; Sp.in., spatium intersepto-valvulare; S.I., septum I; S.IT, septum II; V.car.c.d.. and V.car.c.s. ... interventricular septum; S.I., septum I; S.II, septum II; Sn.d., right sinus horn; Sp.in., spatium interseptovalvulare; V.car.c ... Septum primum S.II, Septum secundum S.in., Septum interventriculare Sn.t., Sinus venosus, trans, part Sn.d., Sinus venosus, ...

https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_On_the_development_of_the_atrial_septum_and_the_valvular_apparatus_in_the_right_atrium_of_the_pig_embryo_

T1 - Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves the ... Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves the ... Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves the ... title = "Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves ...

https://yonsei.pure.elsevier.com/en/publications/additional-linear-ablation-from-the-superior-vena-cava-to-right-a

DEVELOPMENT OF ATRIAL SEPTUM-PKi EMBllYO 355 of the right atiiuni in the angle between the fiooi- and septum I, and just x^ ... interventricular septum; Sp.in., spatium intersepto-valvulare; S.I., septum I; S.IT, septum II; V.car.c.d.. and V.car.c.s. ... interventricular septum; S.I., septum I; S.II, septum II; Sn.d., right sinus horn; Sp.in., spatium interseptovalvulare; V.car.c ... Septum I (S.I) though fused for the most part with the atrial walls, still presents a short, free border facing the now very ...

https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Paper_-_On_the_development_of_the_atrial_septum_and_the_valvular_apparatus_in_the_right_atrium_of_the_pig_embryo_

The midline inter-atrial chamber enclosed by the two septa was found to be continuous with the left atrium, with stasis in this ... Double inter-atrial septum is an exceedingly rare congenital cardiac abnormality. We describe a case of transient ischaemic ... Robaei, Daniel, Buchholz, Stefan, and Feneley, Michael (2013) Double inter-atrial septum: a rare cause of cardioembolic stroke. ... attack in a 53 year-old female found to have double inter-atrial septa on transthoracic and transoesophageal echocardiography. ...

https://researchonline.jcu.edu.au/34754/

Surgical outcome of hypoplastic left heart syndrome with intact atrial septum. Sadahiko Arai, Yasuhiro Fujii, Yasuhiro Kotani, ... Surgical outcome of hypoplastic left heart syndrome with intact atrial septum. In: Asian Cardiovascular and Thoracic Annals. ... Background The surgical outcomes of hypoplastic left heart syndrome with intact atrial septum remains very poor in spite of the ... Surgical outcome of hypoplastic left heart syndrome with intact atrial septum. / Arai, Sadahiko; Fujii, Yasuhiro; Kotani, ...

https://okayama.pure.elsevier.com/en/publications/surgical-outcome-of-hypoplastic-left-heart-syndrome-with-intact-a

Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. Infants with standard or complex atrial septum ... Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. Infants with standard or complex atrial septum ... Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. Infants with standard or complex atrial septum ... Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. Infants with standard or complex atrial septum ...

https://okayama.pure.elsevier.com/en/publications/balloon-atrial-septostomy-in-hypoplastic-left-heart-syndrome-with

Bigelows septum synonyms, Bigelows septum pronunciation, Bigelows septum translation, English dictionary definition of ... sep·ta A thin partition or membrane that divides two cavities or soft masses of tissue in an organism: the nasal septum; the ... A thin partition or membrane that divides two cavities or soft masses of tissue in an organism: the nasal septum; the atrial ... septum. (redirected from Bigelows septum). Also found in: Thesaurus, Medical, Encyclopedia. sep·tum. (sĕp′təm). n. pl. sep·ta ...

https://www.thefreedictionary.com/Bigelow%27s+septum

interalveolar septum synonyms, interalveolar septum pronunciation, interalveolar septum translation, English dictionary ... sep·ta A thin partition or membrane that divides two cavities or soft masses of tissue in an organism: the nasal septum; the ... A thin partition or membrane that divides two cavities or soft masses of tissue in an organism: the nasal septum; the atrial ... Related to interalveolar septum: alveolar septum. sep·tum. (sĕp′təm). n. pl. sep·ta (-tə) ...

https://www.thefreedictionary.com/interalveolar+septum

Left Atrium, Left Atrial Appendage, Pulmonary Veins, and Atrial Septum. Given its anatomic location immediately anterior to the ... The cusp adjacent to the atrial septum is the noncoronary cusp, the most anterior cusp is the right coronary cusp, and the ... The interatrial septum (IAS) is examined next at the mid esophageal level by turning the probe slightly to the right of midline ... Rapid atrial pacing for detecting provokable demand ischemia in anesthetized. Anesth Analg 1997; 84: 1180-5.. * Cited Here... ...

http://journals.lww.com/anesthesia-analgesia/pages/articleviewer.aspx?year=1999&issue=10000&article=00010&type=Fulltext

https://en.wikipedia.org/wiki/Dextro-Transposition_of_the_great_arteries

atrial septum morphogenesis ISS Inferred from Sequence or Structural Similarity. more info ... ventricular septum morphogenesis ISS Inferred from Sequence or Structural Similarity. more info ...

https://www.ncbi.nlm.nih.gov/gene/161882

atrial septum morphogenesis IMP Inferred from Mutant Phenotype. more info. PubMed NOT atrioventricular valve morphogenesis IMP ... NOT outflow tract septum morphogenesis IMP Inferred from Mutant Phenotype. more info ...

https://www.ncbi.nlm.nih.gov/gene?cmd=search&term=NM_007561

Right atrial thrombosis in a patient with antiphospholipid syndrome and abnormal mesenchymal septum. ... Right atrial thrombosis in a patient with antiphospholipid syndrome and abnormal mesenchymal septum. ... Right atrial thrombosis in a patient with antiphospholipid syndrome and abnormal mesenchymal septum. Together they form a ... The decision to opt for surgical excision of the thrombus was determined by the unclear nature of the atrial mass. It may be ...

https://moh-it.pure.elsevier.com/en/publications/right-atrial-thrombosis-in-a-patient-with-antiphospholipid-syndro

Balloon dilatation of atrial septum in complete transposition of great artery--a new technique. ... Shrivastava S, Radhakrishnan S, Dev V, Singh LS, Rajani M. Balloon dilatation of atrial septum in complete transposition of ...

https://imsear.searo.who.int/handle/123456789/4243

... later closure has been associated with right heart failure and rarely with the formation of an aneurysm of the atrial septum. ... case of a 1 day old infant in whom PCFO resulted in severe right heart failure in addition to the formation of a giant atrial ... Hypoplastic left heart syndrome with intact or highly restrictive atrial septum: outcome after neonatal transcatheter atrial ... Giant aneurysm of the atrial septum associated with premature closure of foramen ovale. *Constantinos Chrysostomou. 1. , ...

https://cardiovascularultrasound.biomedcentral.com/articles/10.1186/1476-7120-3-20

https://en.wikipedia.org/wiki/Murray_S._Hoffman

There are two septums in the heart. The atrial septum separate... Full Answer , Filed Under: * Muscles ... A: The left and the right sides of the heart are separated by walls of tissue known as septums. ...

https://www.reference.com/science/fibrous-tissue-covers-muscles-3562f138f691e543

Tearing of atrial septum † # participants affected / at risk 1/139 (0.72%) 0/25 (0.00%) ... NAVISTAR® THERMOCOOL® Catheter for the Radiofrequency Ablation of Symptomatic Paroxysmal Atrial Fibrillation (Afib IDE). The ... Number of documented symptomatic Atrial Fibrillation episodes [1] [Units: Number of episodes]. Mean (Standard Deviation) 62.3 ( ... Number of symptomatic Atrial Fibrillation episodes during the last six months prior to study enrollment.. ...

https://clinicaltrials.gov/ct2/show/results/NCT00116428?sect=X3015&view=results

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.[14] It is also present in the mesothelium of the ...

https://en.wikipedia.org/wiki/OSR1

Risk stratification of patients with hypoplastic left heart syndrome and intact atrial septum using fetal MRI and ... 5.Rychik, J, Rome, J, Collins, M, et al.The hypoplastic left heart syndrome with intact atrial septum: atrial morphology, ... Fetal stenting of the atrial septum: technique and initial results in cardiac lesions with left atrial hypertension. Int J ... 2.Sathanandam, SK, Philip, R, Gamboa, D, et al.Management of hypoplastic left heart syndrome with intact atrial septum: a two- ...

http://core-cms.prod.aop.cambridge.org/core/journals/cardiology-in-the-young/article/risk-stratification-of-patients-with-hypoplastic-left-heart-syndrome-and-intact-atrial-septum-using-fetal-mri-and-echocardiography/4E894B76C317AB2AB589E2164B560DED

The morphogenesis of this area is of great clinical interest, because of the high incidence of atrial and atrioventricular septal defects. (ox.ac.uk)

Closure of the primary atrial foramen is achieved by fusion of the atrioventricular cushions with the mesenchymal cap on the leading edge of the muscular primary atrial septum. (ox.ac.uk)

The 3rd day starting with an interesting case, Old lady suffering from LA Mass occupying the mitral valve orifice with a pedicle attached to the atrial septum causing severe dynamic LV inflow obstruction. (ctsqena.com)

LAACs require highly precise and reliable transseptal access, without which the procedure time may increase as we work to gain left-atrial access,' said Dr. Saw. (newswire.ca)

Also known as interatrial septum. (thefreedictionary.com)
Diffusion-weighted imaging (DWI) may help to distinguish the characteristics of cerebral embolism associated with different features of the interatrial septum in PFO stroke. (ovid.com)
A computed tomographic angiogram of the chest incidentally showed a 5 × 3.5-cm lipomatous mass in the upper two thirds of the interatrial septum ( Fig. 1 ), with clear sparing of the fossa ovalis. (allenpress.com)
Transthoracic and transesophageal echocardiograms ( Figs. 2 and 3 ) and added color-flow Doppler mode ( Fig. 4 ) confirmed lipomatous hypertrophy of the interatrial septum (LHIS)-about 5 cm at its greatest dimension-and restriction of right atrial filling with obstruction of the superior vena cava. (allenpress.com)
Transthoracic echocardiogram (apical 4-chamber view) shows the large mass in the posterior aspect of the interatrial septum. (allenpress.com)
Lipomatous hypertrophy of the interatrial septum is not a true tumor. (allenpress.com)
Transcatheter creation of an ASD is usually achieved with a variety of techniques including transseptal puncture, balloon septostomy, blade septostomy, and static balloon dilation of the interatrial septum. (jspccs.jp)
atrial septum ( septum atrio´rum cor´dis ) interatrial septum . (thefreedictionary.com)
It was attached to the interatrial septum and prolapsed through and obstructs the tricuspid valve into the right ventricle. (hindawi.com)
The mass has a broad base, attached to the interatrial septum at the area of AV node region. (hindawi.com)
The mass was excised and shaved from the interatrial septum. (hindawi.com)
On palpation, there was thickening of interatrial septum just above the right ventricle. (hindawi.com)
However, we did not resect interatrial septum due to the concern of complete heart block later. (hindawi.com)
The tumor margin was positive near the interatrial septum. (hindawi.com)
transechocardiograph shows right atrial mass attached to interatrial septum. (hindawi.com)
These circumstances may occur during the perioperative period as a result of the effect of mechanical ventilation, thromboembolism or air embolism, the altered anatomic relationship between the IVC and interatrial septum, or an increase in intraabdominal pressure. (lww.com)
The relation between the left and the right atria and the interatrial septum is illustrated. (rjmatthewsmd.com)
The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus, and conducts the normal electrical impulse from the atria to the ventricles. (wikipedia.org)
It is located at the center of Koch's triangle-a triangle enclosed by the septal leaflet of the tricuspid valve, the coronary sinus, and the membranous part of the interatrial septum. (wikipedia.org)
The AV node receives two inputs from the right atrium: posteriorly, via the crista terminalis, and anteriorly, via the interatrial septum. (wikipedia.org)
Cystic tumour of atrioventricular nodal region (CTAVN) CTAVN is of endodermal origin and occurs exclusively in the area of the AV node, tricuspid valve, and interatrial septum. (wikipedia.org)

A greater number of hot days was associated with noncritical defects, particularly of the atrial septum , but not critical defects. (thefreedictionary.com)
This anatomic relationship is important in many forms of congenital heart disease in which the infundibular septum is dissociated from the remainder of the ventricular septum (e.g., malalignment forms of ventricular septal defects in tetralogy of Fallot and in double-outlet right ventricle). (78stepshealth.us)
The majority of clinically significant ventricular septal defects involve the membranous septum.i^ Owing to normal angulation between the infundibular septum and remaining ventricular septum, the septal surface follows the course of an inverted S (moving from apex to aortic valve ). (78stepshealth.us)
The morphogenesis of this area is of great clinical interest, because of the high incidence of atrial and atrioventricular septal defects. (ox.ac.uk)
In some congenital heart defects, an unrestrictive atrial septal defect (ASD) is nessesary for blood mixing at the atrial level or relief of right or left atrial hypertension resulting in better cardiac output and systemic saturation. (jspccs.jp)
Atrioventricular (AV) septal defects comprise a range of malformations characterized by varying degrees of incomplete development of the inferior portion of the atrial septum, the inferior portion of the ventricular septum, and the AV valves. (healthcentral.com)
It causes anomalies that range in severity from a small ostium primum atrial septal defect to a complete AV septum, which also involves defects in the interventricular septum and the mitral and tricuspid valves. (healthcentral.com)
Perhaps 25 percent or more of atrial septal defects diagnosed incidentally, because a murmur is heard, or through echocardiography done during infancy, will close spontaneously. (healthcentral.com)
When the child reaches 2 or 3 years of age, most atrial defects that are producing clinical signs (enlarged right heart, substantially increased pulmonary blood flow), although not necessarily symptoms, should be repaired. (healthcentral.com)
Partial defects involve only the lower portion of the atrial septum (called ostium primum atrial septal defect and usually associated with a mitral valve defect) or, rarely, may involve only the ventricular septum, with or without a mitral valve abnormality. (healthcentral.com)
In most patients with atrial septal defects, symptoms are rare during childhood. (healthcentral.com)
Greater understanding, technical knowhow, and wider availability of catheters, balloons, delivery systems, and devices have spread intervention into the realm of acquired valve disease, degenerative disease of the aorta, paravalve leakage, postinfarction ventricular septal defects, and closure of the left atrial appendage. (routledge.com)
Therefore, there are defects (holes) in the atrial and ventricular septa, and the AV valve remains undivided or "common. (cincinnatichildrens.org)
Most atrial septal defects occur by chance. (uhhospitals.org)
What Causes Atrial Septal Defects? (kidshealth.org)
How Are Atrial Septal Defects Diagnosed? (kidshealth.org)
How Are Atrial Septal Defects Treated? (kidshealth.org)
If left untreated, however, atrial septal defects may cause problems in adulthood. (choa.org)
and ventricular or atrial septal defects, which are "holes" in the thin membrane (septum) that separates the chambers of the heart. (rarediseases.org)
The staff of the Adolescent and Adult Congenital Heart Disease Program at Nationwide Children's Hospital are experts in caring for patients with Atrial Septal Defects (ASD) and other congenital heart diseases. (nationwidechildrens.org)

Background The surgical outcomes of hypoplastic left heart syndrome with intact atrial septum remains very poor in spite of the introduction of prenatal diagnosis before the Norwood operation. (elsevier.com)
Methods Six consecutive patients with hypoplastic left heart syndrome with intact atrial septum, who underwent the hybrid operation between October 2006 and July 2014, were retrospectively reviewed. (elsevier.com)
Hypoplastic left heart syndrome with highly restrictive atrial communication was excluded. (elsevier.com)
Conclusions The hybrid operation for hypoplastic left heart syndrome with intact atrial septum may have improved the neonatal outcome and Fontan completion rate in this extremely high-risk group of patients, but the long-term outcome remains dismal. (elsevier.com)
Background: Rashkind balloon atrial septostomy (BAS) can be challenging in infants with hypoplastic left heart syndrome (HLHS) and small atrial septal defect (ASD). (elsevier.com)
Despite prenatal diagnosis, prenatal intervention, and immediate postnatal intervention, patients with hypoplastic left heart syndrome and intact or highly restrictive atrial septum have the highest risk for mortality. (cambridge.org)

Conclusions: Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. (elsevier.com)

Kalvaitis and his associates performed DE MRI exams on 62 patients with atrial fibrillation scheduled to undergo pulmonary vein antrum isolation and atrial septum de-bulking. (thefreedictionary.com)
Aims Although circumferential pulmonary vein isolation (CPVI) has been considered as the cornerstone for paroxysmal atrial fibrillation (PAF) ablation, there has been a substantial recurrence rate. (elsevier.com)
During the two-week dosing period, the subject's medication was titrated up for maximum efficacy for the treatment of paroxysmal atrial fibrillation. (clinicaltrials.gov)
Atrial myxomas are sometimes linked with valve obstruction stenosis and atrial fibrillation . (medlineplus.gov)
Intermittently, she had paroxysmal atrial fibrillation that aborted spontaneously. (hindawi.com)
The study aimed to observe the effects of pacing on the atrial effective refractory period (AERP), inducibility of atrial fibrillation (AF), and changes of atrial autonomic neural remodeling (ANR) by rosuvastatin intervention on the acute model of rapid-pacing-induced AF. (ovid.com)
This is the property of the AV node that prevents rapid conduction to the ventricle in cases of rapid atrial rhythms, such as atrial fibrillation or atrial flutter. (wikipedia.org)

The additional presence of atrial septum aneurysm (ASA) possibly increases stroke risk, but it remains undetermined which factors best predict thromboembolism in patients with PFO. (ovid.com)
Earlier in the gestation, closure of the foramen has been associated with severe hypoplasia of the left ventricle whereas later closure has been associated with right heart failure and rarely with the formation of an aneurysm of the atrial septum. (biomedcentral.com)
We describe the case of a 1 day old infant in whom PCFO resulted in severe right heart failure in addition to the formation of a giant atrial septal aneurysm. (biomedcentral.com)
The membrane seen within the LA on the echocardiogram was found to be a blind ended, wind sock like giant aneurysm of the atrial septum measuring 15 mm in length and 6 mm in width, occupying about 70% of the LA cavity (Fig. 2 ). (biomedcentral.com)
What was thought to be a gap in the atrial septal wall with bidirectional shunt was a swirling of blood in and out of this blind ended aneurysm from the right atrial side through the fossa ovalis. (biomedcentral.com)
The right atrium is divided and the q-tip is directed from right to left through the fossa ovalis showing the giant atrial septal aneurysm (arrow) covering most of the left atrial cavity. (biomedcentral.com)
The presence of a PFO is highly associated with atrial septal aneurysm. (lww.com)
An atrial septal aneurysm (ASA) is an increasingly recognized entity that involves septal tissue significantly bulging into either atria instead of remaining in a relatively neutral position. (springer.com)
Hanley PC, Tajik AJ, Hynes JK et al (1985) Diagnosis and classification of atrial septal aneurysm by two-dimensional echocardiography: report of 80 consecutive cases. (springer.com)
Longhini C, Brunazzi MC, Musacci G et al (1985) Atrial septal aneurysm: echopolycardiographic study. (springer.com)
Oyedeji AT, Okunola O, Sani MU (2012) Atrial septal aneurysm mimicking a cor triatriatum sinister: a case report and review of the literature. (springer.com)
Mattioli AV, Aquilina M, Oldani A et al (2001) Atrial septal aneurysm as a cardioembolic source in adult patients with stroke and normal carotid arteries. (springer.com)
Rice MJ, McDonald RW, Reller MD (1988) Fetal atrial septal aneurysm: a cause of fetal atrial arrhythmias. (springer.com)
Toro L, Weintraub RG, Shiota T et al (1994) Relation between persistent atrial arrhythmias and redundant septum primum flap (atrial septal aneurysm) in fetuses. (springer.com)
Hauser AM, Timmis GC, Stewart JR et al (1984) Aneurysm of the atrial septum as diagnosed by echocardiography: Analysis of 11 patients. (springer.com)
Mattioli AV, Bonetti L, Aquilina M et al (2003) The association between atrial septal aneurysm and mitral valve prolapse in patients with recent stroke and normal carotid arteries. (springer.com)
Freedom RM, Rowe RD (1976) Aneurysm of the atrial septum in tricuspid atresia: diagnosis during life and therapy. (springer.com)
An atrial septal aneurysm is an atrial septum that is bulging, abnormally enlarged and mobile, explains About.com. (reference.com)
When the atrial septum encroaches into one or both chambers during a heartbeat, it is considered an aneurysm. (reference.com)
Doctors diagnose atrial septal aneurysm is done by using transthoracic and transesophageal echocardiography. (reference.com)
however, anyone who has an atrial septal aneurysm is at risk for an ischemic stroke. (reference.com)
More studies need to be done to find the connection between the abnormalities in the heart, such as atrial septal aneurysm and stroke. (reference.com)
It is possible that a thrombus formation on the left side of the atrial septal aneurysm is responsible for this. (reference.com)
Left ventricular-right atrial communication with an aneurysm of the atrioventricular membranous septum. (nii.ac.jp)

A small atrial septal wall gap was also present with bidirectional flow, as well as a small 3 mm, membranous ventricular septal defect (VSD). (biomedcentral.com)
An atrial septal defect (ASD) is also shown. (medscape.com)
Because there is little or no flow out of the left heart, blood returning to the heart from the lungs needs to pass through the foramen ovale or an atrial septal defect (a hole connecting the collecting chambers on the left and right sides of the heart) back to the right side of the heart. (medlineplus.gov)
Atrial septal defect , congenital opening in the partition between the two upper chambers (atria) of the heart . (britannica.com)
The most common atrial septal defect is persistence of the foramen ovale, an opening in this partition that is normal before birth and that normally closes at birth or shortly thereafter. (britannica.com)
What is an atrial septal defect closure? (proz.com)
An atrial septal defect is an abnormal opening in the wall (septum) that divides the two upper chambers of the heart (atria). (proz.com)
The atrial septal defect closure procedure corrects this abnormal opening. (proz.com)
Click here to view a patient success story regarding atrial septal defect closure. (proz.com)
Atrial septum defect fatal after birth? (healthtap.com)
Atrial septal defect: correctable after birth! (healthtap.com)
Although a large PFO is sometimes a functional atrial septal defect (ASD), this should not be confused with true ASD, particularly of secundum type ( Table 1 ). (lww.com)
After the resection of the redundant right atrial wall, the coronary sinus blood flow was rerouted into the left atrium through the surgically created atrial septal defect. (ahajournals.org)
The basic defect is a deficiency of the AV septum which separates the left ventricular inlet from the right atrium. (healthcentral.com)
The complete defect, which is more comon, involves the portion of the heart where that atrial septum (the wall vertically dividing the heart's upper chambers) meets the ventricular septum (separating the heart's lower chambers), as well as the valves - mitral and tricuspid - that divide these chambers horizontally. (healthcentral.com)
The effect of the complete canal defect is a large hole spanning both the upper and lower parts of the septum and the presence, in place of two discrete mitral and tricuspid valves, of one large valve that spans both sides of the defect. (healthcentral.com)
Atrial septal defect is often associated with Down syndrome. (healthcentral.com)
Traditional surgical repair for an atrial septum defect, involving a dacron patch, is both safe and effective. (healthcentral.com)
The defect is, therefore, primarily in the atrial septum and mitral valve. (cincinnatichildrens.org)
This type of atrial septal defect is referred to as an ostium primum atrial septal defect, and is usually associated with a cleft in the mitral valve that may cause the valve to leak. (cincinnatichildrens.org)
Patent Attorney Chris Burnett has recently had cause to investigate Atrial Septal Defect Closure Devices and became interested in the history of their development and what the future may hold for these devices. (lexology.com)
An Atrial Septal Defect (ASD) is a hole in the septum between the top two chambers of the heart. (lexology.com)
The patent is directed to apparatus and an associated method of use for closing off a shunt defect in the septum. (lexology.com)
An atrial septal defect (ASD) is an abnormal hole in this wall. (uhhospitals.org)
What causes an atrial septal defect in a child? (uhhospitals.org)
What are the symptoms of an atrial septal defect in a child? (uhhospitals.org)
How is an atrial septal defect diagnosed in a child? (uhhospitals.org)
How is an atrial septal defect treated in a child? (uhhospitals.org)
An atrial septal defect (ASD) - sometimes called a hole in the heart - is a type of congenital heart defect in which there is an abnormal opening in the dividing wall between the upper filling chambers of the heart (the atria). (kidshealth.org)
In an atrial septal defect, there's an opening in the wall (septum) between the atria. (kidshealth.org)
A small atrial septal defect or patent foramen ovale was also noted. (hindawi.com)
Color flow Doppler and an agitated saline contrast study revealed bidirectional but primarily right to left flow through the VSD and bidirectional shunting through the atrial defect. (hindawi.com)
Additionally, defect in the atrial septum was determined to be a patent foramen ovale. (hindawi.com)
At Children's, our pediatric-trained team of cardiothoracic surgeons is trained to diagnose and treat children born with atrial septal defect. (choa.org)
When an atrial septal defect is present, blood flows through the hole primarily from the left atrium to the right atrium. (choa.org)
In atrial septal defect, there is usually higher pressure in the left atrium compared to right atrium, thus blood flows (or shunts) from left to right. (nationwidechildrens.org)
Emboli can cross the atrial septal defect, enter the arterial circulation, and become lodged in a small artery of the brain, heart, kidneys, arms, legs, etc, and can result in stroke, heart attack or damage to other organs. (nationwidechildrens.org)
Once an atrial septal defect is diagnosed, your child's cardiologist will check your child to see if the defect is closing on its own. (ahealthyme.com)

MVP is characterized by accumulation of mucinous material in valve leaflets, membranous and atrial septum , and mitral and tricuspid valve rings. (thefreedictionary.com)
Transthoracic and transesophageal echocardiography revealed a right atrial mass which was clearly distinguishable from the tricuspid valve and extended to the superior vena cava. (elsevier.com)

We conducted a prospectively randomized study to evaluate whether additional linear ablation from the superior vena cava (SVC) to the right atrial (RA) septum (SVC-L) improves the clinical outcome. (elsevier.com)
An additional electrode configured for positioning in the superior vena cava, right atrium (including the right atrial appendage, or the right ventricle may also be included, and the pulse generator may be configured or programmed for concurrently delivering a first defibrillation pulse through the additional electrode and the atrial septum electrode, and a second defibrillation pulse through the atrial septum electrode and the second electrode. (google.com)
This corresponds to an internal muscular bundle, the crista terminalis, which runs along the edge of the entrance to the right atrial appendage to the front of the orifice of the superior vena cava and then to the right side of the inferior vena cava (Figs. 8, 9). (rjmatthewsmd.com)
The sinus node is usually located at the lateral margin of the junction of the superior vena cava with the right atrium and the atrial appendage, beneath or near the sulcus terminalis (terminal groove) (Figs. 1 and 2). (rjmatthewsmd.com)

We describe a case of transient ischaemic attack in a 53 year-old female found to have double inter-atrial septa on transthoracic and transoesophageal echocardiography. (edu.au)
We report a case of a 69-year-old man who was diagnosed with isolated double atrial septum by transthoracic echocardiography. (bvsalud.org)
In this case, we document one of the previously proposed mechanisms of atrial arrhythmia using echocardiography imaging. (springer.com)
Echocardiography revealed a giant left atrial homogeneous mass (6.8 cm × 5.9 cm) filling the massively dilated left atrium and protruding with systole into the mitral valve opening. (pulsus.com)
Echocardiography revealed a giant left atrial mass compatible with left atrial myxoma. (pulsus.com)

This case discusses a Shone's variant with small left ventricle and mitral valve, bicuspid aortic valve, coarctation of the aorta, an unusual arrangement of atrial appendages, and partially anomalous pulmonary venous drainage due to a deviated atrial septum. (springer.com)
Van Praagh S, Carrera ME, Sanders S, Mayer JE Jr, Van Praagh R (1995) Partial or total direct pulmonary venous drainage to right atrium due to malposition of septum primum: anatomic and echocardiographic findings and surgical treatment: a study on 36 cases. (springer.com)
When the atrial septum remains open, pulmonary venous blood that enters the left atrium flows into the right atrium, producing a left-to-right shunt. (thefreedictionary.com)
It is a thick muscular septum that arises to the right of the septum primum in the intersepto-valvular space (between the septum primum and the left venous valve of the SA opening). (edu.mt)
Osr1 is expressed in the dorsal atrial wall, from which the primary atrial septum will emerge, and later in the septum and left venous valve leaflet. (wikipedia.org)

Born in his account, which included some observations on human embryos, corrected the error of His ('85) regarding the formation of the atrial septum and its relation to the foramen ovale. (edu.au)
The method of formation of the atrial septum and nearly related parts in the mammalian heart has been known since the careful investigations of Rose ('88 and '89), Born ('89), and more recently Favaro ('13). (edu.au)

abstract = "We report a rare case of atrial tachycardia (AT) originating from the upper left atrial septum. (elsevier.com)

A modelling study of atrial septostomy for pulmonary arterial hypertension, and its effect on the state of tissue oxygenation and systemic blood flow. (biomedsearch.com)
Atrial septostomy is performed in patients with severe pulmonary arterial hypertension, and has been shown to improve symptoms, quality of life and survival. (biomedsearch.com)
Atrial septostomy in the setting of pulmonary arterial hypertension, therefore, increases the arterial delivery of oxygen, but the mixed systemic saturation of oxygen, arguably the most important index of tissue oxygenation, stays constant. (biomedsearch.com)
Our data suggest that the clinically observed beneficial effects of atrial septostomy are the result of improved flow of blood rather than augmented tissue oxygenation, provided that right ventricular function is adequate. (biomedsearch.com)
Fetal atrial septostomy: A temporary solution to enlarge a naturally occurring hole in the atria, this procedure is done to allow the fetus' heart and lungs time to develop in a more natural way until the circulatory issue can be surgically corrected. (uhhospitals.org)
She thus described Ohye's study as "heroic work" but noted it is just the beginning since there are even newer and potentially better approaches, such as the hybrid combination of surgical banding of the pulmonary artery branches and endovascular stenting of the ductus with balloon atrial septostomy. (medpagetoday.com)

Figure 2-38: (Plate 13) Four-chamber tomographic slice through the aortic root (Ao) and aortic valve (arrows) showing the small membranous (MS) and large muscular (*) portion of the ventricular septum. (78stepshealth.us)

A single muscle bundle extends from the posteromedial mitral papillary muscle to the posterior septum (probe with white arrow), and one bundle extends from one portion of the posterior septum to another (probe with black arrow). (78stepshealth.us)
The membranous septum lies beneath the right and posterior (noncoronary) aortic cusps (see Fig. 2-30) and contacts the mitral and tricuspid annuli Fig. (78stepshealth.us)
The membranous septum in conjunction with the right fibrous trigone with which it is continuous fuses the commissure between the right and posterior aortic cusps to the commissure between the anterior and septal tricuspid leaflets (see Fig. 2-21B). (78stepshealth.us)
Septum I is composed for the most part of developing muscle which is continuous with the musculature of the roof, posterior wall and floor of the atrium. (edu.au)
The atrial septum primarily bulges into the left atrium coming into direct contact with the posterior wall of the left atrium thereby inducing a premature atrial beat. (springer.com)
The aorta (Ao) is posterior to the pulmonary trunk (PT) but anterior to the atrial septum (AS). (rjmatthewsmd.com)
Externally, the chamber consists of a posterior part which receives the superior and inferior venae cavae termed the sinus venarum (fig. 4.10b) and an anterior part which extends forwards in pouch-like fashion to encircle the right border of the aorta, the right atrial appendage (fig. 4.10c). (rjmatthewsmd.com)

An atrial myxoma is a noncancerous tumor in the upper left or right side of the heart. (medlineplus.gov)
Giant left atrial myxoma presenting with pulmonary hypertension can be an etiology of heart failure among Black Africans. (pulsus.com)
Unusual manifestations of left atrial myxoma have also been documented. (pulsus.com)
They are amenable to surgical excision with good prognosis, especially if there are no major structural or function adaptations to the left atrial myxoma tissue [ 6 ]. (pulsus.com)

Two distinct pools of mesenchyme contribute to the development of the atrial septum. (ox.ac.uk)

There was no residual shunt across atrial septum and patent ductus arteriosus. (thefreedictionary.com)

During prenatal life, PFO is a fenestration in the septum secundum, bordered on the left side by the septum primum, which allows blood flow from the RA to the LA. After birth, when LA pressure exceeds RA pressure, the PFO closes functionally with permanent closure caused by adhesion occurring within the first year of life (4) . (lww.com)
The methods rely on introducing a closure tool from a location beneath the rib cage, over an epicardial surface, and to the exterior of the left atrial appendage. (google.es)
The closure device may then be used to close the left atrial appendage, preferably at its base, by any one of a variety of techniques. (google.es)

Here we report that the primary atrial foramen is surrounded in its entirety by mesenchyme derived from endocardium. (ox.ac.uk)
Patent foramen ovale (PFO), usually a benign and silent lesion ( Fig. 1 ), can cause hypoxemia and embolic phenomena under circumstances when right atrial (RA) pressure exceeds left atrial (LA) pressure or when preferential flow from the inferior vena cava (IVC) toward the PFO persists, as in the prenatal circulation (1-3) . (lww.com)
Elevated right atrial pressure is not always necessary for right-to-left shunting in patients with patent foramen ovale. (cmaj.ca)

The ostium secundum is an opening in the upper part of the septum primum. (edu.mt)
Ostium I (fig. 2) is thus entirely surrounded by thickened endocardium except where it is continuous with the narrow slit (transverse fissure) between the endocardial cushions of the atrial canal. (edu.au)
a second electrode connected to said appendage intermediate portion, wherein said catheter body is configured for insertion through the coronary sinus ostium and into the coronary sinus of the heart, and said second electrode is an atrial septum electrode. (google.com)

2. nasal septum . (thefreedictionary.com)
nasal septum a plate of bone and cartilage covered with mucous membrane that divides the nasal cavity. (thefreedictionary.com)
Further, intranasal contact points between mucosal surfaces of the nasal septum and turbinates are suggested to act as triggers releasing pain mediators that are also present in the trigeminovascular system contributing to migraine headaches. (unicare.com)
Participants with migraines triggered from the nasal septum and turbinates underwent septoplasty and inferior and/or middle turbinectomies based on the "intranasal abnormality. (unicare.com)

Considering the late mortality related to pulmonary complications, aggressive fetal intervention to create a nonrestrictive atrial septal communication to promote normal development of the pulmonary vessels may be the last resort to improve the long-term outcome. (elsevier.com)
Nppa , encoding atrial natriuretic factor, is expressed in fetal atrial and ventricular myocardium and is downregulated in the ventricles after birth. (ahajournals.org)
Proximal promoter fragments (0.5 to 3.4 kbp) of Nppa of human, rat, mouse, and Xenopus have been shown to drive atrial and fetal ventricular expression both in vivo 6-11 and in cell cultures 12,13 and to provide a hypertrophy stress response in cardiomyocyte cell cultures and after injection as plasmid DNA in the ventricles of failing dog hearts. (ahajournals.org)
Fetal atrial septal stent: If balloon dilation is not sufficient, a stent may be used to expand the hole or communication between the top two chambers of the heart (atrium. (uhhospitals.org)

As the septum grows downward and forward toward the atrial canal, the endocardial thickening develops two extensions or horns which fuse with the endocardial cushions of the atrial canal. (edu.au)
The structures that develop from the endocardial cushions include the lower part of the atrial septum (wall that divides the right atrium from the left atrium) and the ventricular septum (wall that divides the right ventricle from the left ventricle) just below the tricuspid and mitral valves. (cincinnatichildrens.org)

As a result, some oxygenated blood from the left atrium flows through the hole in the septum into the right atrium, where it mixes with oxygen-poor blood and increases the total amount of blood that flows toward the lungs. (kidshealth.org)
As kids with ASDs get older, they also might be at an increased risk for stroke because a blood clot could form, pass through the hole in the septum, and travel to the brain. (kidshealth.org)

septum of ventricles of heart ( ventricular septum ) ( septum ventriculo´rum cor´dis ) interventricular septum . (thefreedictionary.com)
In addition, a decrease in the interventricular pressure gradient during the diastolic phase causes flattening and leftward displacement of the interventricular septum (IVS). (ahajournals.org)

The atrial septum is the wall separating the heart's upper two chambers, the atria. (thefreedictionary.com)
The atrial septum is the wall between the left and right atria (upper chambers) of the heart. (thefreedictionary.com)
The chambers of the heart are separated by septa. (thefreedictionary.com)
septum pri´mum a septum in the embryonic heart, dividing the primitive atrium into right and left chambers. (thefreedictionary.com)
These chambers are separated by walls (septa). (uhhospitals.org)
The atrial septum is the membrane that separates the upper chambers of the heart. (reference.com)
The heart is separated at the level of the receiving chambers (right and left atria) by the atrial septum, and at the pumping chambers (right and left ventricles) by the ventricular septum. (nationwidechildrens.org)

The symptoms and signs of left atrial myxomas often mimic mitral stenosis (narrowing of the valve between the left atrium and the left ventricle). (medlineplus.gov)
The dilated sac measured 30 mm in widest dimension and finally entered the floor of the left atrial cavity just above the mitral valve. (springer.com)

Complications associated with ASA include arrhythmias and thromboembolic events with the latter usually in the context of atrial shunting. (springer.com)
This also protects the ventricles from excessively fast rate response to atrial arrhythmias (see below). (wikipedia.org)

1) Myxomas most commonly occur in the left atrium (90%) and are generally attached to the atrial septum in or adjacent to the fossa ovalis. (thefreedictionary.com)
2 The defining features of LHIS are as follows: the specific septal location of the atrial thickening (which tends to be greater than 2 cm and typically spares the fossa ovalis), and a classic dumbbell or hourglass shape. (allenpress.com)

There was moderate right atrial and right ventricular dilatation. (biomedcentral.com)
Right ventricular volume overload (RVVO) is often associated with tricuspid regurgitation 1-7 or a left-to-right shunt at the atrial level. (ahajournals.org)
8-11 Long-lasting RVVO gradually induces right ventricular (RV) and right atrial dilatation, leading to congestive RV failure. (ahajournals.org)

Sharma S, Devine W, Anderson RH (1996) The determination of atrial arrangement by examination of the appendage morphology in 1842 heart specimens. (springer.com)
Retzer ('08) published a brief note on the development of the heart in which he claimed that Born's account of the atrial septum in the rabbit could not be applied to the pig. (edu.au)
the atrial septum of the heart. (thefreedictionary.com)
The left and the right sides of the heart are separated by walls of tissue known as septums. (reference.com)
There are two septums in the heart. (reference.com)
Osr1 regulates atrial septum formation in the heart. (wikipedia.org)
b) a second atrial defibrillation electrode which together with the first atrial defibrillation electrode provides a pair of atrial defibrillation electrodes that are configured for orientation in or about the patient's heart to effect atrial defibrillation, and (c) a pulse generator operatively associated with the pair of atrial defibrillation electrodes for delivering a first atrial defibrillation pulse to the heart of the patient. (google.com)
The atrial septum forms during the embryonic development of the heart. (healthcentral.com)
Atrial myxomas are the most common benign tumour of the heart. (pulsus.com)
An ASD that isn't treated in childhood can lead to health problems later, including an abnormal heart rhythm (an atrial arrhythmia ) and problems in how well the heart pumps blood. (kidshealth.org)
After hearing the heart murmur that suggests a hole in the atrial septum, a doctor may refer a child to a pediatric cardiologist , a doctor who specializes in diagnosing and treating heart disease in kids and teens. (kidshealth.org)
Atrial septal aneurysms are rare but easily recognized deformities of the heart, claims the Annals of Pediatric Cardiology. (reference.com)
Removal of the atrial septum to allow oxygenated blood to cross to the right heart. (medpagetoday.com)

12,13] Aortic regurgitation has been found in association with atrial myxomas where the tumour pedicle is attached to the atrial septum close to the aortic root. (thefreedictionary.com)
Anteromedially, the right atrial appendage protrudes from the right atrium and overlaps the aortic root (Figs. 1 and 2). (rjmatthewsmd.com)

They are associated with two inter-atrial communications (ostia). (edu.mt)
Double inter-atrial septum is an exceedingly rare congenital cardiac abnormality. (edu.au)
The midline inter-atrial chamber enclosed by the two septa was found to be continuous with the left atrium, with stasis in this accessory chamber predisposing to thrombus formation and cardio-embolic events. (edu.au)

Of particular interest was the presence of an unusual, fixed, membrane-like structure occupying most of the left atrial cavity (Fig. 1 ). (biomedcentral.com)
The 2-D echocardiogram including color 'Doppler' revealed a dilated left ventricle and left atrium with turbulence in the left atrial cavity. (springer.com)

This gap is closed during the eighth week by growth from endocardial tissue, which forms the membranous part of the ventricular septum. (edu.mt)
The ventricular septum is a complex intracardiac partition that can be considered to comprise four parts: inlet, trabecular, membranous, and infundibular. (78stepshealth.us)
The ventricular septum also may be divided into muscular and membranous portions15-17 (Figs. 238, Plate 13, and 2-39). (78stepshealth.us)
rectovaginal septum the membranous partition between the rectum and vagina. (thefreedictionary.com)
rectovesical septum a membranous partition separating the rectum from the prostate and urinary bladder. (thefreedictionary.com)

Anatomy16

Organisms1

Diseases14

Chemicals and Drugs1

Analytical, Diagnostic and Therapeutic Techniques and Equipment15

Disciplines and Occupations1

Anthropology, Education, Sociology and Social Phenomena1

Information Science1

Named Groups1

Health Care5

Geographicals1

Morphological basis for the study of the interatrial septum in the human fetus. (1/81)

Migraineurs with patent foramen ovale have larger right-to-left shunt despite similar atrial septal characteristics. (2/81)

Completely endoscopic removal of a dislocated Amplatzer atrial septal defect closure device. (3/81)

The structure and components of the atrial chambers. (4/81)

Septal atrial pacing for the prevention of atrial fibrillation. (5/81)

Right atrial preventive and antitachycardia pacing for prevention of paroxysmal atrial fibrillation in patients without bradycardia: a randomized study. (6/81)

The change in the fluoroscopy-guided transseptal puncture site and difficult punctures in catheter ablation of recurrent atrial fibrillation. (7/81)

Successful ablation of focal left atrial tachycardia using Stereotaxis Niobe remote magnetic navigation system. (8/81)

Atrial Septum

Heart Septum

Heart Septal Defects, Atrial

Hypoplastic Left Heart Syndrome

Heart Septal Defects

Heart Atria

Lymphangiectasis

Fetal Heart

Septum of Brain

Ventricular Septum

Septum Pellucidum

Echocardiography, Transesophageal

Myxoma

Streptococcus constellatus

Nasal Septum

Heart Neoplasms

Pulmonary Veins

Heart Defects, Congenital

Cardiac Catheterization

Heart Conduction System

Echocardiography

Foramen Ovale, Patent

Cardiac Pacing, Artificial

Electrophysiologic Techniques, Cardiac

Catheter Ablation

Electrocardiography

Catheterization

Pacemaker, Artificial

Infant, Newborn

Ultrasonography, Prenatal

Atrial Fibrillation

Heart

Norwood Procedures

Cardiology

Texas

Hospitals, Pediatric

Truncus Arteriosus, Persistent

Truncus Arteriosus

Foramen Ovale

Heart Valves

Copyright

Aortopulmonary Septal Defect

Uroplakin II

Pulmonary Artery

Anastomosis, Surgical

Pulmonary Atresia

Cardiovascular Diseases

Risk Factors

Blood Vessels

Hypertension

Cohort Studies

Prospective Studies

Morphological basis for the study of the interatrial septum in the human fetus. (1/81)

Migraineurs with patent foramen ovale have larger right-to-left shunt despite similar atrial septal characteristics. (2/81)

Completely endoscopic removal of a dislocated Amplatzer atrial septal defect closure device. (3/81)

The structure and components of the atrial chambers. (4/81)

Septal atrial pacing for the prevention of atrial fibrillation. (5/81)

Right atrial preventive and antitachycardia pacing for prevention of paroxysmal atrial fibrillation in patients without bradycardia: a randomized study. (6/81)

The change in the fluoroscopy-guided transseptal puncture site and difficult punctures in catheter ablation of recurrent atrial fibrillation. (7/81)

Successful ablation of focal left atrial tachycardia using Stereotaxis Niobe remote magnetic navigation system. (8/81)

Negative contrast echocardiography: A new method for detecting left-to-right shunts<...

Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the...

Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the...

Acute embolic events--myocardial infarction and stroke, in the presence of an interatrial septal aneurysm.

Two distinct pools of mesenchyme contribute to the development of the atrial septum. - Oxford Cardiovascular Science

Left atrial pressure is associated with iatrogenic atrial septal defect after mitral valve clip | Heart

interatrial septum

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ABC Associazione Bambino Cardiopatico, Parma.

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Unresolved mysteries in the mechanisms of cardiac pain ! | Dr.S.Venkatesan MD

Jacobs Journey

5 3 Voor de ernstige verontreiniging zijn bij de huidige omvang en bodemgebruik risicos voor Ecologisch de planten en (bodem...

Cso Monitoring News on Environmental XPRT

First Canadian Cardiac Procedure Performed Using the All-in-One VersaCross™ Transseptal Solution

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Rethinking Radical Cystectomy for Patients with Muscle Invasive Bladder Cancer

Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves the...