Is PANDAS just misdiagnosed Sydenham Chorea?
We don\’t know. But it appears from studies by Kirvan and others that PANDAS has a lot of similarities to Sydenham Chorea. About 70% of Sydenham Chorea cases have OCD symptoms. This number also seems to be true for PANDAS cases. In the original definition of PANDAS, Dr. Swedo excluded those cases that had a history of Acute Rheumatic Fever or were exhibiting the explicit Sydenham Chorea (also known as St. Vitus Dance).