A trigger (from the Dutch trekken, meaning to pull) is a lever which, when pulled by the finger, releases the hammer on a firearm. In a database, a trigger is a set of Structured Query Language (SQL) statements that automatically fires off an action when a specific operation, such as changing data in a table, occurs. A trigger consists of an event (an INSERT, DELETE, or UPDATE statement issued against an associated table) and an action (the related procedure).
There are a wide variety of conditions that can be considered in the differential diagnosis of a Chiari malformation. The symptoms commonly associated with a Chiari malformation are vague and common to numerous other conditions. Some disorders are common misdiagnoses for individuals with a Chiari malformation. Such conditions include multiple sclerosis, chronic fatigue syndrome, fibromyalgia and spinal cord tumors.
Although some people have no symptoms, others have symptoms that are not specific to Chiari malformation. Therefore, your doctor will conduct a careful exam and order imaging tests to rule out other conditions that may be causing your symptoms. A diagnosis of Chiari malformation must be one of exclusion. Some of the tests to help confirm this diagnosis include: Brainstem auditory evoked potential (BAEP)