Clinical and biological death

While studying the problem of recovery of the organism was elaborated the concept of clinical death. The researchers found that after the cessation of cardiac activity and respiratory tissues and organs of the human body not die right away. It is known that heart many hours can not get the blood and then to be quickened. We also know that the corpse can grow hair, nails. But there tissue is very vulnerable, which die after 5-7 minutes after the cessation of cardiac activity. These include first of all the cerebral cortex. This means that the efficiency of various tissues of the body by stopping the circulation varies. Meanwhile, when we talk about the revival of the body, we mean the restoration of the functions of the body, that is, all its tissues, including the most vulnerable - the cerebral cortex.
Now firmly established that in normal conditions of temperature cortex not tolerate circulatory arrest of more than 5-6 minutes. You can revitalize your body and through longer than 5-6 minutes, but such a system will remain inadequate, because he first of all will be deprived of the ability to think.
What is the physiology of dying? In the first minutes after the cessation of cardiac activity and respiration seen a sharp oppression of all metabolic processes in the body: stop breathing and circulation of blood, there is no regulatory influence of the Central nervous system. There's no life in the ordinary sense of the word. But some "isolated", a kind of life cells, tissues and organs is still ongoing, although the body as a whole already practically does not function. Naturally, to register these weak processes is possible only with the help of special methods.
Clinical, or reversible, death, following the agony, is the period after the cessation of cardiac activity and respiration, when still alive the cortex, in other words, when you can still achieve full and lasting recovery of the whole organism.
Our understanding of clinical death would be incomplete if we were limited to the above. One cannot speak of clinical death, not taking into account the preceding period of dying. Often, this period may be as long and exhausting that revitalize the body it is impossible even a few seconds after the onset of clinical death. If in the process of dying organism has not been functional depletion of the most important organs and not come irreversible changes in the tissues, the recovery can be successful even after 7-8 minutes after clinical death. In animal experiments have shown that if dying from blood loss lasted only 10-12 minutes, to revive the body is quite easy after 5-6 minutes of clinical death. If the bleeding lasts for 30-40 minutes, then to return the body vitality, as a rule, not even over a shorter period, for example, after 3-4 minutes.

In normal conditions of temperature is the brain dies after 5-6 minutes after stopping the inflow of blood. Normal nerve cells (A) begin to collapse (B).

The duration of clinical death can impact a number of other factors, such as overall health, environment temperature, etc.
Clinical death inevitably turns into death biological or true when the recovery of the organism as a whole becomes impossible.
Biological death in different tissues and organs also comes in different times. But when we talk about the possibility of recovery of the organism as a whole, we mean, first of all, restoration of function of the cortex as runimage education, without which the full life of the organism is impossible.
However there is a need to work to find ways of extending clinical death. This will enable the recovery after 5-6 minutes, but, say, half an hour after the termination of work of heart. The path to the solution of this problem consists in finding the means and methods that delay the rapid loss of nerve cells in the cortex.
In some laboratories have already conducted research in this direction. We must assume that after some time the issue of extension of period of clinical death will be largely resolved not only in the experiment and in clinic.

  • A complex method of restoration of the vital functions of the body