title: Cerebrovascular accident associated with dipyridamole thallium-201 myocardial imaging: case report.
abstract: A patient with known aortoiliac occlusive disease and hypertension suffered a cerebrovascular accident 6.5 min after the administration of intravenous dipyridamole during a 201Tl myocardial study. Despite aminophylline administration, the patient developed a completed stroke. The mechanism most likely responsible for precipitating this patient's stroke is dipyridamole-induced vascular steal. Although dipyridamole-201Tl myocardial imaging is relatively free of major complications, the morbidity and mortality associated with a cerebrovascular accident is significant. The possibility of precipitating a cerebrovascular accident during dipyridamole-201Tl imaging should be considered in all patients with significant risk factors for stroke before performing a dipyridamole cardiac study.
authors.affiliation: Department of Radiology, University of Utah School of Medicine, Salt Lake City.
authors.forename: J H
authors.initials: JH
authors.lastname: Whiting
authors.forename: F L
authors.initials: FL
authors.lastname: Datz
authors.forename: F V
authors.initials: FV
authors.lastname: Gabor
authors.forename: S R
authors.initials: SR
authors.lastname: Jones
authors.forename: K A
authors.initials: KA
authors.lastname: Morton
mesh_terms: D002561:Cerebrovascular Disorders / Q000139:chemically induced*; D004176:Dipyridamole / Q000008:administration & dosage / Q000009:adverse effects*; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D012307:Risk Factors; D013793:Thallium
chemical_list: D004176:Dipyridamole; D013793:Thallium