MYSTERY: It is revealed what the brain takes a few minutes before it dies


What happens to our brain a few moments before it dies?


 
According to the discovery of a neurologist team from the Charité-Universitätsmedizin Berlin hospital, a wave of electrical activity called "cerebral tsunami" seems to mark the beginning of the last. Experts who examined cerebral activity in 9 patients at deaths noted an outbreak of activity that appears to precede the fatal closure of the most vital organ of the body. This finding suggests that the conscience may still be present in many minutes even though the rest of the body may not show signs of life. This increases the possibility that during the 5 minutes the process of brain death may be reversible.

All patients who were the subject of the study had fatal cerebral lesion. Experts hoped that by placing electrodes in the brain of subjects could be discovered as the moment as well as the mechanisms of events during the death process. To their amazement they discovered that within 5 minutes, after the heart had ceased to be beaten, cerebral cells or neurons could still function. A kind of "cerebral tsunami" marked the moment in which these neurons were cleansed before final death and untranslated. After circulatory arrest, the spread of depolarization (reduction of neuronal potential) marks the loss of electrochemical energy stored in brain cells and the emergence of toxic processes that ultimately lead to death. "It should be noted what is to be regenerated, up to a point when circulation is made," explains Jens Dreier, search leader. Neurons die when blood does not flow anymore, depriving them of oxygen. When this happens, neurons use energy reserves for a few minutes before they die completely. This happens when the mechanisms that use neurons to keep separate ions begin to fail. Ions are electrical loads formed when atoms lose or gain electrons.



Breaking the barriers of these particles liberates a massive amount of electrochemical energy in the brain, which neurons try to consume as fuel. This process known as the proliferation of depolarization is characterized by hyperactivity of neurons followed by a sudden calm. This tranquility marks back count to death. The last wave seems to mark the point at which neurons remain active for the last time. For now scientists do not have a clear method to diagnose cerebral deaths and are not sure when losing the entire capacity of conscience. The study does not have a direct effect on patient care, but in the future it can improve diagnosis and treatment. Data may be needed to address the cerebrovascular accident and accident that meet the strain to restore circulation to the body.


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