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  2. Atrial septal defect - Wikipedia

    en.wikipedia.org/wiki/Atrial_septal_defect

    Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.Some flow is a normal condition both pre-birth and immediately post-birth via the foramen ovale; however, when this does not naturally close after birth it is referred to as a patent (open) foramen ovale (PFO).

  3. Cardiac shunt - Wikipedia

    en.wikipedia.org/wiki/Cardiac_shunt

    The left and right sides of the heart are named from a dorsal view, i.e., looking at the heart from the back or from the perspective of the person whose heart it is. There are four chambers in a heart: an atrium (upper) and a ventricle (lower) on both the left and right sides. [1] In mammals and birds, blood from the body goes to the right side ...

  4. Tetralogy of Fallot - Wikipedia

    en.wikipedia.org/wiki/Tetralogy_of_Fallot

    a bicuspid pulmonary valve, in 60%; right-sided aortic arch, in 25%; coronary artery anomalies, in 10%; a patent foramen ovale or atrial septal defect, in which case the syndrome is sometimes called a pentalogy of Fallot [46] an atrioventricular septal defect; partially or totally anomalous pulmonary venous return

  5. Right-to-left shunt - Wikipedia

    en.wikipedia.org/wiki/Right-to-left_shunt

    right heart pressure is higher than left heart pressure and/or the shunt has a one-way valvular opening. Small physiological, or "normal", shunts are seen due to the return of bronchial artery blood and coronary blood through the Thebesian veins , which are deoxygenated, to the left side of the heart.

  6. Eisenmenger syndrome - Wikipedia

    en.wikipedia.org/wiki/Eisenmenger_syndrome

    Eisenmenger syndrome or Eisenmenger's syndrome is defined as the process in which a long-standing left-to-right cardiac shunt caused by a congenital heart defect (typically by a ventricular septal defect, atrial septal defect, or less commonly, patent ductus arteriosus) causes pulmonary hypertension [1] [2] and eventual reversal of the shunt into a cyanotic right-to-left shunt.

  7. Lutembacher's syndrome - Wikipedia

    en.wikipedia.org/wiki/Lutembacher's_syndrome

    As there is a chronically increased left-to-right blood flow through the atria, this will lead in the future to right-sided heart failure. Ankle edema: This is also caused by a large ASD and has the same symptoms and causes as seen in weight gain and right upper quadrant pain.

  8. Foramen ovale (heart) - Wikipedia

    en.wikipedia.org/wiki/Foramen_ovale_(heart)

    The first is the foramen ovale (the valve present between them called eustachian valve) which shunts blood from the right atrium to the left atrium. The second is the ductus arteriosus which shunts blood from the pulmonary artery (which, after birth, carries blood from the right side of the heart to the lungs) to the descending aorta.

  9. Paradoxical embolism - Wikipedia

    en.wikipedia.org/wiki/Paradoxical_embolism

    These routes include moving through a patent foramen ovale (a congenital hole connecting the right and left atria of the heart), a ventricular septal defect (a congenital hole connecting the ventricles), or a pulmonary arteriovenous fistula, where arteries in the lungs connect directly to veins without capillaries in between.