Intravenous Methylprednisolone–Induced Nocturnal Sinus Bradycardia in a Multiple Sclerosis Patient

Article AbstractBecause this piece does not have an abstract, we have provided for your benefit the first 3 sentences of the full text.To the Editor: Some cases of sinus bradycardia caused by intravenous methylprednisolone have been documented, but to the best of our knowledge, however, ours is the first report of nocturnal sinus bradycardia caused by intravenous methylprednisolone.Case report. Ms A is a 54-year-old white woman with a 10-year history of relapsing remitting multiple sclerosis (MS), vitamin D deficiency, gastric reflux, and hyperlipidemia who was admitted for a reexacerbation of her MS. She was started on intravenous methylprednisolone 1 g in 250 mL of 0.9% normal saline administered daily over a 3-hour period for 5 days.