Patients who undergo patent foramen ovale closure will not develop further pulmonary hypertension.
The foramen ovale is a hole in the right and left ventricles of the heart that serves as a conduit for direct blood flow during fetal life. After birth, when the pulmonary circulation is established, the foramen ovale closes functionally, and it closes structurally and permanently about six months after birth.
Pulmonary hypertension is an abnormal pathophysiologic state in which the mean pulmonary artery pressure, measured using a right heart catheter, is higher than 25 mm Hg. Pulmonary hypertension is most often caused by left heart disease, lung disease and hypoxia, and chronic thromboembolism.
The patent foramen ovale closure procedure, a minimally invasive procedure that restores the normal anatomy of the heart and normalizes hemodynamics, does not cause pulmonary hypertension.
If you feel unwell, you should seek medical attention and follow the treatment prescribed by your doctor.