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I am trying to understand the partially patent foramen ovale in patients with right-side heart failure.

I am interested how the pressure in right and left atrium change in

  • normal case
  • in abnormal situations

I did not find good pictures in Pocock Physiology nor in Guyton.

I just have an intuition that the pressure in left ventricle is higher than in right one in the normal situation because of the entrance of air into the pulmonary alveolis and then to the pulmonary arteries and thus increasing the pressure also in the left atria first.

Is there any good source for the pressure differences between right and left atriums in Physiology and Pathophysiology?

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