Thyrotoxic periodic paralysis

Thyrotoxic periodic paralysis is a thyroid-related disorder that is manifes ted as recurrent episodes of hypokalemia and muscle weakness lasting from h ours to days. The periodic paralysis has been associated with thprotoxicosi s from various etiologies. Although the incidence of the disorder is relati vely higher among Asians, it has been reported in many other ethnic groups. We review the literature and report the ninth and tenth cases of thyrotoxi c periodic paralysis in black patients.