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Patent foramen ovale embryology

Atrial septa at various stages of development. (A) 30 days (6mm). (B) Same as stage A, viewed from the right. (C) 33 days (9mm). (D) Same stage as C, viewed from the right. (E) 37 days (14mm). (F) Newborn. (G) The atrial septum from the right; same stage as F. (Reproduced with permission from: Sadler TW. Cardiovascular System. In: Sadler TW, editor. Langman’s Medical Embryology. 8th ed. Baltimore: Lippincott Williams and Wilkins, 2000:221-23.)

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Associated Disorders

  • Atrial myxoma
  • Atrial septal aneurysm
  • Atrial septal defect
  • Cryptogenic stroke
  • Embolic stroke
  • Fat embolism
  • Ischemic stroke
  • Neurologic decompression illness
  • Obstructive sleep apnea
  • Papillary fibroelastoma
  • Paradoxical embolism
  • Platypnea-orthodeoxia syndrome
  • Pulmonary embolism
  • Pulmonary hypertension
  • Right heart failure
  • Thromboembolism
  • Transient ischemic attack
  • Tumor embolism
  • Venous thrombosis