The South Palm Cardiovascular Associates team specializes in treating conditions like ASD and PFO using minimally invasive techniques. Patent Foraman Ovale (PFO) Repair.A Patent Foramen Ovale (PFO) is a small opening between the upper chambers of the heart. The procedure is commonly done with patients under a general or local anesthetic, but still awake. In SW Florida, only Lee Health's specially trained physicians perform PFO repair. Call 239-445-4775 for more information. 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. 10 locations throughout Miami-Dade, Broward, and Palm Beach.