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Abstract #13419 Published in IGR 8-1

Comparative study of cerebral blood flow in patients with normal-tension glaucoma and control subjects

Sugiyama T; Utsunomiya K; Ota H; Ogura Y; Narabayashi I; Ikeda T
American Journal of Ophthalmology 2006; 141: 394-396

See also comment(s) by Selim Orgül


PURPOSE: To evaluate regional cerebral blood flow (rCBF) in normal-tension glaucoma patients (NTGs) compared with normal volunteers (controls) in a pilot study. DESIGN: Observational cohort study. METHODS: The Iodine-123-IMP single photon emission computed tomography (SPECT) scans were acquired in 31 NTGs and 18 age-matched controls. The SPECT images in NTGs were classified and the quantitative rCBF data were compared with controls. RESULTS: Seven of 31 NTGs (22.6%) exhibited an Alzheimer's disease (AD)-like perfusion pattern although none of them were clinically diagnosed with AD. The visual field defect of NTGs with an AD-like pattern progressed more rapidly than NTGs with a normal pattern (P = .132). The rCBF in left parietal regions of NTGs with senile sclerotic or focal ischemic disk was significantly lower than controls (P < .05). CONCLUSIONS: A number of NTGs exhibited an AD-like perfusion pattern, suggesting that some of NTGs and AD patients might have a common pathologic mechanism.

Dr. T. Sugiyama, Department of Ophthalmology, Osaka Medical College, Osaka, Japan. opt017@poh.osaka-med.ac.jp


Classification:

6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)
9.4.15 Glaucoma in relation to systemic disease (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)



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