CASE REPORTS
Thyrotoxic Periodic Paralysis Induced by Pulse Methylprednisolone
2007 Volume 46 Issue 17 Pages 1431-1434
Details
2007 Volume 46 Issue 17 Pages 1431-1434
We present a young Thai man who developed acute flaccid paralysis after receiving pulse methylprednisolone for chronic inflammatory demyelinating polyneuropathy. Hypokalemia from intracellular shift was confirmed by calculation of transtubular potassium gradient (TTKG). His muscle strength and serum potassium fully recovered with a small amount of potassium replacement. Graves' disease was subsequently diagnosed and treated with radioactive iodine. We suggest that acute paralysis after the use of steroids should raise a suspicion of thyrotoxic periodic paralysis (TPP). The potential mechanisms of steroid-induced TPP are discussed.
