Abstract
Nine cocaine abusers with cerebral blood flow (CBF) deficits (hypo-perfused areas) on HMPAO SPECT scans were compared to six without these deficits after six doses of isradipine (5 mg TID). When comparing the scan before isradipine to that after using SPM analysis, the ratio of hypo- to hyper-fusion showed a 16% increase in the maximum Z scores and 30% fewer areas of hypo-perfusion among those cocaine abusers with deficits. These deficits may represent segmental cerebral vasospasm that was reversed by this vasodilating agent in cocaine abusers with areas of hypo-perfusion (deficits) as baseline.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adult
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Brain / blood supply*
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Brain / drug effects*
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Cerebrovascular Circulation / drug effects
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Cerebrovascular Disorders / diagnosis
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Cerebrovascular Disorders / drug therapy*
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Cerebrovascular Disorders / etiology*
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Chronic Disease
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Cocaine-Related Disorders / complications*
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Cocaine-Related Disorders / epidemiology
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Female
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Humans
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Incidence
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Isradipine / administration & dosage
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Isradipine / pharmacology*
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Isradipine / therapeutic use*
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Male
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Oximes
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Radiopharmaceuticals
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Tomography, Emission-Computed, Single-Photon*
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Vasodilator Agents / administration & dosage
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Vasodilator Agents / pharmacology*
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Vasodilator Agents / therapeutic use*
Substances
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Oximes
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Radiopharmaceuticals
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Vasodilator Agents
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hexamethylpropyleneamine oxime
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Isradipine