When.com Web Search

Search results

1. Results From The WOW.Com Content Network

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. Foramen ovale (heart) - Wikipedia

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

   Sketch showing foramen ovale in a fetal heart. Red arrow shows blood from the inferior cava traveling to the right atrium and then to the left atrium. HF: right atrium, VF: left atrium. HH and VH: right and left ventricle. The heart still has a common pulmonary vein (LV), instead of four.

4. Cardiac shunt - Wikipedia

   en.wikipedia.org/wiki/Cardiac_shunt

   Atrial septal defect with left-to-right 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]

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. 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.

7. Tetralogy of Fallot - Wikipedia

   en.wikipedia.org/wiki/Tetralogy_of_Fallot

   It increases pressure on the left side of the heart, decreasing the right to left shunt. The decreased shunt volume results in a decrease in deoxygenated blood flow entering the systemic circulation and an increase in deoxygenated blood flow antegrade through the obstructed right ventricular outflow tract. [22] [23]

8. Fossa ovalis (heart) - Wikipedia

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

   With enough pressure, blood may travel from the right atrium to the left. If there is a clot in the right side of the heart, it can cross the PFO, enter the left atrium, and travel out of the heart and to the brain, causing a stroke. If the clot travels into a coronary artery it can cause a heart attack. [6]

9. 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.