Does the patent foramen ovale need surgery?

If the

patient's patent foramen ovale is mild, and the diameter is less than 5 mm, the clinical symptoms are not obvious, and there is no other underlying disease, then surgery is not required. If the patient's patent foramen ovale is severe, and the diameter is greater than 1 cm, often with unknown causes of headache, dizziness, migraine, etc., surgery should be performed in time. Otherwise, when coughing and sneezing, it will cause pulmonary pressure to increase, so that the right atrium blood is reversely shunted to the left atrium, resulting in small emboli in the right atrium venous blood reaching the systemic circulation through the left heart system, causing cerebral embolism and affecting health.