Carbon monoxide intoxication induced atrial fibrillation

Carbon monoxide (CO) is a colorless, odorless gas which is a leading cause of accidental deaths during winter months. Its toxic effect occurs by binding to hemoglobin or directly at cellular level. Electrocardiographic findings due to CO intoxication are STsegment changes, premature contractions, sinus tachycardia, bundle blocks and atrial fibrillation (AF). We report a 33-year-old man who presented with AF due to CO poisoning. The patient was treated with anti-ischemic drugs and oxygen therapy.