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Abnormal cerebral blood flow in red eyed shunt syndrome with cavernous dural arteriovenous malformation Motohiro Kiyosawe 1 , Masatoshi Ito 2 , Jun Hatazawa 2 , Akira Takahashi 3 , Tatsuo Ido 1 , Taiju Matsuzawa 4 , Makoto Tamai 1 1Dept of Ophthalmol Tohoku Univ Sch of Med 2Cyclotron and Radioisotope Center, Tohoku Univ 3Dept of Neurosurg, Konan Hosp, Sendai 4Dept of Radiol, Reserch institute for tuberculosis and Cancer, Tohoku. Univ pp.545-548
Published Date 1991/4/15
DOI https://doi.org/10.11477/mf.1410900597
  • Abstract
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We studied ocular symptomes and cerebral blood flow and metabolism in 6 patients with cavernous dural arteriovenous malformations. Ophthal-mological examination revealed venous stasis retinopathy in 2 patients and disturbed ocular movement in 3. The mean intraocular pressure was increased to 25.3 mmHg. Positron emission tomo-graphy with 15O-labelled CO2 continuous inhalation revealed reduction of blood flow in the contralater-al frontal lobe by 30% (p< 0.05).

PET with 15O labelled CO2 continuous inhalation revealed increase in oxygen extraction rate by 10% (p≦0.10). Calculated cerebral motabolic rate for oxygen (CMRO2) showed no signilicant reduction.

This is the first report of dural AVM showing low cerebral blood flow in the contralateral frontal cortex. This finding suggests a possiblity to protect the brain by reversed flow of supra ophthalmic vein.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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