How is Patent Foramen Ovale Treated? How is a PFO treated?Treatment is a catheter procedure or surgery to close the opening in the heart. Our Adult Congenital Heart Center in New York City is a pioneer in the treatment of stroke-related patent foramen ovale. Call today 212-305-6936. Most people with a patent foramen ovale don't need treatment. PFO often has no symptoms. Many people don't need treatment unless they're at risk of stroke or blood clots. Bronx NY periodontists Dr. Cote and Dr. Arsuaga provide comprehensive Periodontal Treatment and Dental Implants in a relaxed, professional environment. The healthcare provider inserts the catheter through a blood vessel in the groin and guides it to the PFO.