A cardiac ultrasound is done at the age of 50 when the patent foramen ovale is found to be unclosed, and then surgery is performed accordingly. A cardiac ultrasound is done after the discovery of an unclosed foramen ovale to find out the size of the extent of the unclosed foramen ovale, and also to see if there are any corresponding hemodynamic changes, complications and symptoms. The structure between the unclosed foramen ovale and the surrounding tissue is determined by cardiac ultrasound. After the determination can choose surgical treatment, through the interventional surgical treatment can be performed interventional occluder to block the treatment, if the body is not suitable for interventional surgery, you can choose to surgical repair surgery to treat, the specific need to choose the appropriate treatment program under the guidance of the doctor. Note that the discovery of unclosed foramen ovale should be timely medical treatment, so as not to delay the condition.