雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

CORRELATION OF VASOSPASM AND INTRACRANIAL METABOLITE UNDER EXPERIMENTAL SUBARACHNOID HEMORRHAGE : PART 2. SPECIAL REFERENCE OF THE CHANGES OF CEREBRAL O2-AVAILABILITY AND ITS MEASURES Shin-ichiro Takahashi 1 1Department of Neurosurgery Tokyo Medical College pp.215-223
Published Date 1979/2/1
DOI https://doi.org/10.11477/mf.1406204379
  • Abstract
  • Look Inside

The purpose of this paper is to describe the oxygen availability of cerebral tissue in dogs during experimental subarachnoid hemorrhage.

Oxygen availability was measured by polaro-graphic technique using a hydron membrane coatedgold electrode. This study was performed about Acid-base-balance of cerebral blood, cerebrospinal fluid and cerebral O2-availability in 12 adult dogs showing cerebrovascular spasm following the ex-perimental production of subarachnoid hemorrhage.

Cerebrovascular spasm was shown in biphasic nature.

In 7 dogs the spasm was nonexistent at 24 hours later (spasm released group), while in the other 5 dogs the spasm recurred at 12 to 24 hours after once released (spasm prolonged group). In the spasm prolonged group, there was atypical metabolic acidosis in cerebrospinal fluid, which continued protractedly. Metabolic changes of cerebrospinal fluid in the spasm released group were of a transient duration. In both groups cerebral O2-availability suggested severe hypoxia after the onset of sub-arachnoid hemorrhage but tended to be restored to normal 3 hours later. Whereas cerebral O2-avail-ability of the spasm released group returned to almost normal levels, this parameter stopped in half level of normalization in the spasm prolonged group, and showed plateau wave afterwards without re-ponding to recurrent spasm.

Cerebral O2-availability in the spasm prolonged group suggests that oxygen was supplied from cerebrospinal fluid, as showed by a protracted fall of cerebrospinal fluid PO2.

It is speculated that so-called late spasm is assumed to depend upon cerebrospinal fluid metabolites. For purpose of improvement of cerebro-vascular spasm, the correction of CSF acidosis was attempted by injection of NaHCO3 in subarachnoidal cistern.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

関連文献

もっと見る

文献を共有