ISSN:
1436-2813
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary The rise time of the midline echo pulsation curve was shorter than normal in both the group of space taking lesions in the cranium and the group of cerebral arteriosclerosis. The rise time in the group of space occupying cerebral lesions was observed shorter than that in the group of cerebral arteriosclerosis. The latency time was measured showing no significant difference among groups of space taking lesions in the cranium, cerebral arteriosclerosis and normal. There was no difference as well in the latency time between both sides of normal persons. It is to be noted that there was a tendency that the latency time was longer on the affected side than on the normal side in the group of intracranial space occupying lesions. Fifteen cases of the so-called brain death were observed, and they were tested by electroencephalography and pulsatile echo-encephalography. Carotid arteriograms were taken in 8 cases. The pulsation of intracranial echoes was still found to exist even when the electroencephalograms were flat, and immediately after the echo pulsation disappeared, the non-filling phenomena of carotid arteriograms were constantly observed, and the intracranial pressure was found higher up to the systemic blood pressure. This may mean that the cerebral circulation is interrupted, when the intracranial echo pulsation disappears. Therefore the method to analyse the intracranial echo pulsation may be suitable to determine the state of the so-called brain death when the cerebral circulation has ceased for a period of time beyond the tolerance of brains to survive.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02468896
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