The angiotensin II type 1 receptor antagonist olmesartan preserves cerebral blood flow and cerebrovascular reserve capacity, and accelerates rehabilitative outcomes in hypertensive patients with a history of stroke.
We aimed to determine the effects of angiotensin II receptor blocker on cerebral hemodynamics and rehabilitative outcome. Sixteen hypertensive patients with a history of stroke received 10-20 mg olmesartan daily for eight weeks. Blood pressure decreased after treatment compared with the baseline, whereas cerebral blood flow (CBF) values of the affected and nonaffected sides increased. The results of the cerebrovascular reserve capacity were also statistically increased in the affected side. Improvements were observed in three rehabilitative outcome parameters. These findings suggest that olmesartan has beneficial effects in hypertensive patients with stroke and impaired CBF autoregulation, and might improve cerebral circulation and rehabilitative outcome.
Matsumoto
Shuji
S
Department of Rehabilitation and Physical Medicine, Graduate school of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
Shimodozono
Megumi
M
Miyata
Ryuji
R
Kawahira
Kazumi
K
D000086:Acetazolamide / Q000494:pharmacology; D000328:Adult; D000368:Aged; D047228:Angiotensin II Type 1 Receptor Blockers / Q000494:pharmacology / Q000627:therapeutic use; D001794:Blood Pressure / Q000187:drug effects; D001921:Brain / Q000098:blood supply*; D005260:Female; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy* / Q000534:rehabilitation*; D007093:Imidazoles / Q000494:pharmacology* / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow / Q000187:drug effects*; D020521:Stroke / Q000150:complications; D000071939:Stroke Rehabilitation; D013777:Tetrazoles / Q000494:pharmacology* / Q000627:therapeutic use*; D016896:Treatment Outcome
D047228:Angiotensin II Type 1 Receptor Blockers; D007093:Imidazoles; D013777:Tetrazoles; C437965:olmesartan; D000086:Acetazolamide