Drżenie ortostatyczne – łatwa diagnostyka, trudna diagnoza? Opis przypadku

ObjectivesOrthostatic tremor is a specific form of tremor which is characterized by a subjective feeling of unsteadiness during stance, not present in other positions. The diagnosis can be confirmed in the electromyographic or accelerometric study by recording the tremor (e.g. in the quadriceps muscle) of frequency 13–18 Hz occurring exclusively in the upright position.Case reportIn the present case, despite the presence of the classic features of orthostatic tremor the proper diagnosis has been much delayed.ConclusionsThe paper presents the characteristic features of this rare movement disorder, indicates some diagnostic possibilities, and emphasizes the need for disseminating the knowledge about the disease which can be treated successfully.