Abstract
We herein report a case of complication resulting in atrial fibrillation during induction of venous sedation. The patient was a 64-year-old male with hyper-tension and diabetes mellitus. He was referred to our department complaining of swelling and slight pain of the right cheek. Based on these clinical symptoms, past medical history and CT finding, diagnosis of postoperative maxillary cyst was established. Preoperative examination did not reveal any remarkable cardiovascular complications other than hypertension. We planned the removal of the cyst under local anesthesia assisted with intravenous sedation. After injecting diazepam and pentazocine intravenously and consecutive maxillary nerve block locally, atrial fibrillation occurred. Although anti-arrhythmic agents were not effective, cardioversion was successful, and the cardiac rhythm normalized. Hypertension and mental stress were thought to be the trigger mechanism for the onset of atrial fibrillation.
