[Thyrotoxic periodic paralysis: an increasingly common complication of hyperthyroidism].

Thyrotoxic periodic paralysis (TPP) is a complication of hyperthyroidism mainly reported in Asian males. It is uncommon in other races, although its incidence is increasing in Western countries. We report the case of a Caucasian patient diagnosed with thyroid hyperfunction who experienced episodes of loss of strength in the lower limbs. The patient was a 35-year-old male with an unremarkable personal history who attended the emergency room reporting a loss of strength in the proximal lower limbs, with no pain or sensory changes, mainly occurring in the evening and related to intense work activity. The episode had occurred at other times during the previous three months. Clinical history found hyperhidrosis, distal tremor, and occasional palpitations, which did not occur at the