Flapping tremor

Introduction The flapping tremor is caused by both basal ganglia lesions and cerebellar ataxia. This kind of tremor is large, the rhythm is slightly slow, and it is usually nicknamed, involving the upper and lower limbs, and the muscle tension is variable. When the patient stretches his fingers and wrist joints, the wrist joints suddenly buck, and then quickly straighten, and the tremors move more, similar to the bird's wings are fanning, it is called flapping tremor.

Cause

More common in metabolic diseases, such as hepatolenticular degeneration, hepatic coma and uremia.

an examination

Related inspection

Cerebrospinal fluid glutamine blood routine brain CT examination cerebrospinal fluid copper

Flapping-like tremor is a unique positive sign of hepatic encephalopathy in patients with severe liver disease, mainly in the pre-coma and slumber period of patients with hepatic encephalopathy. It is the most direct and powerful basis for the diagnosis of hepatic encephalopathy. . The examination method is that the paralyzed patient lifts the two arms flatly. When the fingers are separated, if the patient has two upper limbs outwardly deflected, the wrist and metacarpophalangeal joints have a rapid and irregular paroxysmal wing flapping action. That is, the flutter-like tremor signs are positive.

Differential diagnosis

Often identified with convulsions:

Twitching is a manifestation of involuntary movement and a pathological phenomenon of neuro-muscular disease, manifested as an involuntary contraction of the striated muscle. Commonly seen in the clinic are the following: convulsions, tonic spasm, myoclonus, tremors, dance-like movements, hand and foot movements, twisting tendons, fasciculation, habitual convulsions. Chinese medicine believes that the cause of convulsions is mainly caused by heat and poison, wind and yang disturbance, wind and phlegm, and blood loss.

Flapping-like tremor is a unique positive sign of hepatic encephalopathy in patients with severe liver disease, mainly in the pre-coma and slumber period of patients with hepatic encephalopathy. It is the most direct and powerful basis for the diagnosis of hepatic encephalopathy. . The examination method is that the paralyzed patient lifts the two arms flatly. When the fingers are separated, if the patient has two upper limbs outwardly deflected, the wrist and metacarpophalangeal joints have a rapid and irregular paroxysmal wing flapping action. That is, the flutter-like tremor signs are positive.

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