Improvement of oxygen metabolic reserve after extracranial-intracranial bypass surgery in patients with severe haemodynamic insufficiency

被引：33

作者：

Takagi, Y ^{[1
]}

Hashimoto, N ^{[1
]}

Iwama, T ^{[1
]}

Hayashida, K ^{[1
]}

机构：

[1] NATL CARDIOVASC CTR, DEPT DIAGNOST RADIOL, OSAKA, JAPAN

来源：

ACTA NEUROCHIRURGICA | 1997年 / 139卷 / 01期

关键词：

EC-IC bypass surgery; positron emission tomography; oxygen metabolic reserve; cerebrovascular reserve;

D O I：

10.1007/BF01850868

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

The effectiveness of extracranial-intracranial arterial bypass (EC-IC bypass) surgery on impaired haemodynamic status was studied in 12 patients with reduced regional cerebral perfusion pressure (rCPP) and elevated regional oxygen extraction fraction (rOEF) in the area distal to the symptomatic arterial lesion. Postoperative positron emission tomography (PET) study demonstrated a statistically significant decrease of rOEF in the operated hemispheres with disappearance of the pre-operative interhemispheric rOEF difference. Regional cerebral blood flow (rCBF) and regional cerebral oxygen metabolism (rCMRO2) were also increased in the operated hemispheres with disappearance of the pre-operative interhemispheric differences. Regional CBF/regional cerebral blood volume (rCBV) ratios of the symptomatic hemispheres were increased after surgery, but were still lower than in the contralateral hemispheres. We conclude that EC-IC bypass surgery improves impaired cerebral oxygen metabolic reserve.

引用

页码：52 / 56

页数：5

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