Is it bad to be put to sleep for wisdom teeth removal with a pfo patent formen ovale?

Not generally: If that's your only problem (pfos sometimes occur with other defects) and are otherwise healthy then it should pose no problem for general anesthesia. However, the dentist (or their anesthesiologist) will most likely have you get a surgical clearance from you doc just to be safe.

Sedation: Oral surgeons are well trained for IV concious sedation. Sometimes they use the services of anesthesiologist for challenging cases. Surgeon may ask for cardiology consultation prior to surgery.

If it is symptomatic: If the patent foramen ovale (i assume it is a heart condition) is symptomatic then sedation may not be recommended. Symptomatic meaning, chest pain and shortness of breath. A medical clearance to your oral surgeon by your md may be required.