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  • Title: Application of one-dimensional echoencephalography to diagnosis of brain death.
    Author: Kumchev Y, Kiskinov Z.
    Journal: Folia Med (Plovdiv); 1994; 36(4):27-9. PubMed ID: 8698282.
    Abstract:
    Three groups of patients were studied by echoencephalography using a one-dimensional encephalograph Eho 12. The first group consisted of 100 patients with a mild craniocerebral traumas. Good pulsations of the elements of the echoencephalogram were found during the study. The second group involved 14 people who had died as a result of craniocerebral trauma. The investigation performed postmortem revealed fixed echoencephalogram without any pulsations of its elements. The third group included 11 patients with severe craniocerebral trauma in a state of deep coma. These patients were on mechanical ventilation, their brainstem reflexes were absent, but the cardiac activity remained preserved. The echoencephalographic study in these patients showed a fixed screen curve, without pulsations of its elements. We conclude that absence of pulsations of the elements of echoencephalogram produced by one-dimensional echoencephalograph indicates brain death of the investigated patients. This investigation should be included as a component of the established diagnostic tests.
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