What is bio amnestic syndrome

Among the patients of the neurosurgical departments amnestic syndrome is observed in 15%. Amnesia is a criterion for severe head injuries in all cases of such violations, and they make up 25-30% of patients, the amnesia have fixed. Neurovascular industries reported short episodes of amnesia in 30% of patients.

What triggers an organic amnestic syndrome

Syndrome is an organic process, in particular caused, traumatic brain injury, tumor, infection, hematoma, hypoxia, such as due to heart failure, degenerative processes, epilepsy, and after the sessions of ECT, carbon monoxide poisoning. Short-term amnestic episodes be fainted and after stroke and transitory disorders of cerebral blood flow. The development of the syndrome is associated with the Cercle reticularis, amygdala and septum containing the cortex, hypothalamus, Hippocampus and thalamus and reticular Papez.

Organic amnesic syndrome symptoms

In amnesic syndrome due to a brain injury, usually there is no fixing of amnesia, but there are memory problems in the events prior to the injury (retrograde amnesia) or connected to it (anterograde amnesia). Many of the memory loss can be filled life with false memories (confabulation) or memories of times. In cases where the fixation amnesia still exists, but starts are similar to the Korsakoff syndrome.

Retrospective evaluation of the syndrome is always different from actual. In acute brain injury or stroke, you can at the same time have loss of consciousness of kind of stunning and amnestic syndrome, and after leaving this state only an amnestic syndrome view.

Amnestic disorder after sessions of ECT syndrome is regression in which there are events of in recent times marked, including psychotic past reminds, begins with behavior problems and patients and refer to events such as a few years ago. In short term hypoxia due to a ventricular premature beats may amnesia for very short period of time or feeling that took place the events in a dream.

In the chronic course of the border of amnesia or reduced according to the law of Ribot, i.e. from the present to past events, with the possible Hypermnesia can be expanded from past events, in which the events that had not previously recalled, are relevant and also, the patient determines behavior relevent. The memory function is usually not linked to the other mental functions. By linking of emotional, behavioral, cognitive impairment amnestic disorder.

Diagnosis of the organic amnesic syndrome:

The diagnosis of based amnestic, in fact, to identify organic amnesia and background is needed.

But even this diagnosis can be used only as additional and it must be clarified in cases where the organic base exists, but it is not specified. That is, the diagnosis of the chronic (more than 3 months) as an intermediary or as a retrospective look at. For example, incomplete suicide or cardiac arrest, according to the first traumatic brain injury is usually justified the initial diagnosis of organic amnestic syndrome, but to think chronic course of its kind of hypoxia encephalopathy or skull-brain disease generally gives about the rise of demential process in the must during hypoxia due to one. Transfer of injuries earlier retro anterograde amnesia may not affect the actual mental state, but transferred amnesia affects the behavior and motivation on the tracing of the reaction. The reaction of the individual to a more active amnesia can unrest must be accompanied by fear or confusion.

The most important clinical criteria are:

1. Fixation, anterograde and retrograde amnesia, impaired memory in right Ribot;

(2) The data show stroke or brain disease

(3) The absence of a defect in the immediate reproduction (memory for recent events does not change);

4. No violation of attention and consciousness.

Additional symptoms are confabulation, emotional changes, etc..

Differential diagnosis

Organic amnestic syndrome amnesia is due to a substance disorders should make distinction between dementia, dissociative amnesia, multiple personality.

In the acute phase, differential diagnosis is based only on neurological examination as well as lenses research data and history. Dementia due to chronic amnesia, is the violation of other cognitive functions. The application of the substance this infringement of the reproduction of the immediate events is maintained, errors, which are rare in organic amnesic syndrome. Dissociative amnesia is a result of the repression of traumatic events, and is directly connected, if it not recognized organic background. In multiple personality disorder, amnesia precedes style behavior, motivation, and store that in connection with another person.

Treatment of organic amnesic syndrome:

Amnesic syndrome therapy depends on the underlying disease. The response of each to anxiolytics and amnesia is docked with low doses of tricyclic antidepressants. The stores are promoting it used nootropics and large doses of vitamins.