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Transhepatic approach to closure of patent foramen ovale: report of 2 cases in adults.

Patent foramen ovale is increasingly diagnosed in patients who are undergoing clinical study for cryptogenic stroke or migraine. In addition, patent foramen ovale is often suspected as a cause of paradoxical embolism in patients who present with arterial thromboembolism. The femoral venous approach to closure has been the mainstay. When the femoral approach is not feasible, septal occluder devices have been deployed via a transjugular approach.Herein, we describe 2 cases of patent foramen ovale in which the transhepatic approach was used for closure. To our knowledge, this is the 1st report of a transhepatic approach to patent foramen ovale closure in an adult patient. Moreover, no previous case of patent foramen ovale closure has been reported in a patient with interrupted inferior vena cava.