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Topic: Atrial septal defect

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	Atrial Septal Defect, What Is, NHLBI DCI (Site not responding. Last check: 2007-10-21)
		An atrial septal defect (ASD) is a hole in the wall (septum) that separates the two upper chambers (atria) of the heart.
		This defect is in the middle of the septum.
		This defect is in the upper part of the septum near where a large vein (the superior vena cava) brings blue blood from the upper body to the right atrium.
	www.nhlbi.nih.gov /health/dci/Diseases/asd/asd_what.html (809 words)

	Atrial septal defect - Wikipedia, the free encyclopedia
		Atrial septal defects [ASD] are a group of congenital heart diseases that enables communication between atria of the heart and may involve the interatrial septum.
		Endocardial cushion defects are associated with abnormalities of the atrioventricular valves (the mitral valve and the tricuspid valve).
		A sinus venosus ASD is a type of atrial septum defect in which the defect in the septum involves the venous inflow of either the superior vena cava or the inferior vena cava.
	en.wikipedia.org /wiki/Atrial_septal_defect#Pathophysiology (2907 words)

	Atrial Septal Defect, Cincinnati Children's Hospital Medical Center
		Most often an atrial septal defect is diagnosed when a physician hears a heart murmur during a physical examination.
		Echocardiography is the primary method used to confirm the presence of an atrial septal defect.
		With a small atrial septal defect, this may be as high as 80 percent in the first 18 months of life.
	www.cincinnatichildrens.org /health/heart-encyclopedia/anomalies/asd.htm (639 words)

	Atrial Septal Defect
		The diagnosis of atrial septal aneurysm and patent foramen ovale relied on transesophageal echocardiography with a contrast study and that of mitral valve prolapse, on two-dimensional transthoracic echocardiography.
		An atrial septal aneurysm was diagnosed by transesophageal echocardiography in 32 (8%) of the 410 patients.
		Atrial septal aneurysm was significantly more common in patients with stroke (20 [15%] of 133 vs. 12 [4%] of 277) (p less than 0.05); right to left shunting at the atrial level was demonstrated in 70% of patients in Group I and 75% of patients in Group II by saline contrast echocardiography.
	www.rjmatthewsmd.com /Definitions/atrial_septal_defect.htm (6985 words)

	Atrial
		Apart from exceedingly rare conditions, such as aneurysms of the atrial wall or dilatation of the atrial appendages, the significant atrial lesions are undue prominence of the valves of the embryonic venous sinus, juxtaposition of the atrial appendages, and division of the left atrium (cor triatriatum).
		In this section, true atrial septal defects, that is, defects within the confines of the fossa ovalis, along with the sinus venosus and coronary sinus defects are considered.
		Atrial septal defects are of historical importance in that they were the focus of some of the earliest attempts at surgical correction of intracardiac defects.
	www.pediheart.org /practitioners/defects/atrial.htm (2372 words)

	Lifespan's A - Z Health Information Library - Atrial septal defect
		Atrial septal defect is an abnormality of the upper chambers of the heart (atria) where the wall between the right and left atria does not close completely.
		Atrial septal defect (ASD) is a congenital heart defect.
		ASD may not require treatment if there are few or no symptoms, or if the defect is small.
	www.lifespan.org /adam/healthillustratedencyclopedia/1/000157.html (567 words)

	U-M CVC - Atrial Septal Defect
		Atrial septal defects commonly occur in otherwise normal hearts but may be associated with other heart defects including pulmonary stenosis, ventricular septal defect, partial anomalous venous return, patent ductus arteriosus, mitral valve prolapse, and other more complex heart anomalies.
		An atrial septal defect is a defect or hole in the wall that separates the upper two chambers of the heart (1).
		An echocardiogram is able to detect even small atrial septal defects with almost 100% accuracy and permits measurement of the size and description of the precise location of the defect on the atrial septum.
	www.med.umich.edu /cvc/mchc/paratr.htm (1517 words)

	Atrial Septal Defect (ASD)
		An atrial septal defect is an opening in the atrial septum, or dividing wall between the two upper chambers of the heart known as the right and left atria.
		Arial septal defects occur in 4 percent to 10 percent of all children born with congenital heart disease.
		This defect is part of the AV canal defects, and is often found with a split (cleft) in the leaflet of the mitral valve.
	www.healthsystem.virginia.edu /uvahealth/peds_cardiac/asd.cfm (2581 words)

	Atrial septal defect - atrial septal defect repair
		Most secundem atrial septal defect individuals with a significant ASD are diagnosed in utero or in early childhood with the use of ultrasonography or auscultation of the heart sounds during physical examination.
		Because better atrial septal defect visualization of the atria is achieved on a trans-esophageal echocardiogram, this test may be performed in individuals with a suspected ASD which is not visualized on trans-thoracic imaging.
		Individuals secundum atrial septal defect with a sinus venosus ASD exhibit a left axis deviation of the P wave (not the QRS complex).
	www.medicalgeo.com /Med-Diseases-At---B/Atrial-septal-defect.html (2947 words)

	Atrial Septal Defect -- eCureMe.com (Site not responding. Last check: 2007-10-21)
		When a defect (a hole) occurs in the septum between them, it is known as an atrial septal defect.
		Congenital -- the patient is born with the defect.
		In patients with an atrial septal defect, the blood clots may go from the right atrium into the left atrium, and thus bypass the lungs, but unfortunately, such clots can go directly to vital organs, such as the brain (causing a stroke) or kidneys (causing kidney damage).
	www.ecureme.com /emyhealth/Pediatrics/Atrial_Septal_Defect.asp (600 words)

	Atrial septal defect
		An atrial septal defect (ASD) is a group of congenital heart diseases that involve the inter-atrial septum of the heart.
		Septal defects are sometimes called a "hole" in the heart.
		However, if the ASD is large, permitting a large amount of blood to pass through to the right side of the heart, the right atrium, right ventricle, and lungs will become overworked, and symptoms may be noted.
	mens-health.health-cares.net /atrial-septal-defect.php (624 words)

	Atrial Septal Defect - Texas Heart Institute Heart Information Center
		A septal defect is a hole in the septum, the muscle wall separating the right chambers of the heart from the left chambers of the heart.
		Atrial septal defect (ASD) means that the hole is located between the upper chambers of the heart (the right and left atria).
		Each type of ASD is associated with a hole in a different part of the atrial septum.
	texasheart.org /HIC/Topics/Cond/aseptal.cfm (618 words)

	Congenital Heart Disease: Atrial Septal Defect - Texas Heart Institute Heart Information Center
		A septal defect is a hole in the septum, the muscle wall separating the right chambers of the heart from the left chambers of the heart.
		Atrial septal defect (ASD) means that the hole is located between the upper chambers of the heart (the right and left atria).
		Each type of ASD is associated with a hole in a different part of the atrial septum.
	www.tmc.edu /thi/aseptal.html (613 words)

	Atrial Septal Defect Information on Healthline
		An atrial septal defect is an abnormal opening in the wall separating the left and right upper chambers (atria) of the heart.
		People born with an atrial septal defect can have no symptoms through their twenties, but by age 40, most people with this condition have symptoms that can include shortness of breath, rapid abnormal beating of the atria (atrial fibrillation), and eventually heart failure.
		When an atrial septal defect is corrected within the first 20 years of life, there is an excellent chance for the individual to live normally.
	www.healthline.com /galecontent/atrial-septal-defect (768 words)

	Atrial Septal Defect
		This atrial opening normally closes after birth, and blood is pumped through the lungs and then to the left side of the heart, thus separating off the non-oxygenated and oxygenated blood for life.
		Atrial septal defects occur if the tissue (known as the atrial septum) between the two atria does not completely close after birth.
		Ostium primum defects are probably the most complicated defect to repair because they are associated with abnormalities of the two adjoining heart valves (the mitral and tricuspid valves).
	www.cts.usc.edu /faq-atrialseptaldefect.html (697 words)

	Atrial Septal Defect
		Atrial septal defect (say: ay-tree-ul sep-tul dee-fekt), or ASD for short, is a heart condition that can affect kids.
		In a person without a heart defect, blood that's in need of oxygen flows first to the right atrium, then to the right ventricle, and is then pumped to the lungs to receive oxygen.
		Atrial septal defects are less common than other forms of heart problems.
	kidshealth.org /kid/health_problems/heart/asd.html (607 words)

	Atrial Septal Defect - My Child Has - Children's Hospital Boston
		Atrial septal defect (ASD), a congenital (present at birth) defect, occurs when there is an opening in the atrial septum, or dividing wall between the two upper chambers of the heart, known as the right and left atria.
		When blood passes through the ASD from the left atrium to the right atrium, a larger volume of blood than normal must be handled by the right side of the heart, causing the right side to become overworked and enlarged.
		Cardiac Catheterization — If the defect is large and your child develops severe symptoms, or the defect seems to be causing injury to the aortic valve, your child's cardiologist may recommend cardiac catheterization treatment or surgery immediately.
	www.childrenshospital.org /az/Site477/mainpageS477P0.html (1832 words)

	Atrial septal defect (ASD) - OhioHealth
		An atrial septal defect (ASD) is a hole in the wall between the two upper chambers of the heart.
		Atrial septal defects are often found when an ultrasound exam of the heart (echocardiogram) is done for another reason.
		An atrial septal defect allows freshly oxygenated blood to flow from the left upper chamber of the heart (left atrium) into the right upper chamber of the heart (right atrium).
	www.ohiohealth.com /bodymayo.cfm?xyzpdqabc=0&id=6&action=detail&ref=2625 (1730 words)

	Body1.com - Atrial Septal Defect (Site not responding. Last check: 2007-10-21)
		ASD is one of the most common congenital heart disorders.
		This condition is not as serious as a ventricular septal defect, and the hole often closes on its own.
		An atrial septal defect is a hole in the wall (septum) between the right and left atria.
	www.body1.com /care/index.cfm/2/185 (474 words)

	eMedicine - Atrial Septal Defect, General Concepts : Article by Michael R Carr, MD (Site not responding. Last check: 2007-10-21)
		Two-dimensional and Doppler echocardiography have revolutionized the diagnosis of ASDs.
		An ostium secundum ASD that measures 6 mm in diameter or smaller in the patient's first year of life is likely to close spontaneously; however, such closure is substantially slower than that of a typical small, muscular ventricular septal defect.
		Recommending closure of an ASD in a patient with pulmonary hypertension and advanced pulmonary vascular disease in whom repair of the defect is unlikely to yield benefit or likely to worsen the patient's condition is another pitfall.
	www.emedicine.com /ped/topic171.htm (5154 words)

	Atrial septal defect
		A defect of the upper chambers of the heart (atria) where the wall between the right and left atria does not close completely.
		ASD is present in 4 out of 100,000 people.
		When no other congenital defect coexists, symptoms may be absent, particularly in children.
	www.stv.org /adam/encyclopedia/ency/article/000157.htm (233 words)

	Atrial Septal Defect (Site not responding. Last check: 2007-10-21)
		Atrial Septal Defect: (ASD) this congenital defect, an opening between the left and right atria allows shunting of blood between the chambers.
		ASD is usually a benign defect during infancy and childhood, delayed development of symptoms and complications makes it one of the most common congenital heart defects diagnosed in adults.
		ASD seldom produces complications in infants and toddlers, the doctor may delay surgery until the patient reaches preschool or early school age.
	www.med-help.net /AtrialSeptalDefect.html (333 words)

	ASD (Site not responding. Last check: 2007-10-21)
		An atrial septal defect (ASD) is an abnormal hole in the septum (wall) between the right and left atria (upper chambers).
		The size of the defect may vary from the size of a pinhead to the complete absence of the septum.
		Its location is in the lower portion of the atrial septum, and it almost always is associated with abnormalities of the mitral and tricuspid valves which produce some degree of insufficiency (leakage backwards through these valves).
	heart.amc.edu /asd.htm (327 words)

	Atrial Septal Defect
		If your child has been diagnosed with a heart defect, you may be confused, worried, and scared, but take comfort - many defects, such as atrial septal defects (ASDs), are diagnosed and treated successfully with few or no complications, thanks to modern technology.
		In a person without a heart defect, blood that's in need of oxygen flows from all parts of the body to the right atrium and then to the right ventricle, where it's then pumped to the lungs to receive oxygen.
		ASD is a type of congenital heart disease, which means that a child is born with it.
	kidshealth.org /parent/medical/heart/asd.html (435 words)

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