Asterixis is a symptom that causes your muscles to relax briefly when using them. It has many possible causes, but it’s usually a sign of liver or kidney issues.
Learn what asterixis is, including what causes it, how it can be treated, its association with the liver, and more.
When asterixis is present, the patient’s hands will exhibit brief, irregular, jerking movements, often described as a flapping motion at the wrist. These involuntary movements are caused by a momentary loss of muscle tone, which allows the hand to suddenly flex or drop forward.
The presence of asterixis due to metabolic encephalopathy indicates serious disease and is often a poor prognostic sign. In alcoholic liver disease, asterixis is the only physical finding that has a statistically significant predictive value for mortality.
Asterixis, also called flapping tremor, is a clinical sign indicating the inability to maintain a sustained posture of muscle contraction, resulting in brief, irregular lapses during a sustained posture.
Asterixis is a movement disorder that results in jerking of the hands or feet while attempting to hold a position. The resemblance of the hands to flapping wings gives it the colloquial name "flapping tremor" although it is a negative myoclonus rather than a tremor. [1][2]
Asterixis is a motor disorder characterized by the intermittent loss of muscle tone when attempting to maintain a set position. It most commonly refers to a clinical sign consisting of a tremor of the hand that is best seen when the individual attempts to extend their wrists.
What Causes Asterixis and How Is It Treated? Asterixis is a neurological disorder that causes a person to lose motor control of certain areas of the body. The disorder is thought to be caused...