This paper presents a 38-year-old man with obstructive sleep apnea (OSA) and nocturnal arrhythmia. Tonsillar hypertrophy was the main cause of OSA in this case. Oxygen desaturation during sleep induced severe brady-cardia (under 12 beat/min. ) and premature ventricular contraction (PVC). After uvulopalatophatopharyngoplasty, his respiratory distress and arrhythmia during sleep disappeared completely.
