Biomedical subjects
Publications and source records attributed to A Thaggard.
Use of therapeutic arterial embolization (TAE) in the traumatized patient can achieve rapid control of hemorrhage and obviate the need for immediate surgery on poor-risk patients or in high-risk areas of the body. The techniques of embolization, its risks, and complications are discussed in light of the authors' experience, and a review of recent literature is presented.
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A patient with cerebellar hemangioblastoma underwent two successive cerebral arteriograms within a 48-hour period. The first arteriogram suggested an arteriovenous malformation. The second angiogram showed a dramatic change with nearly total absence of the earlier dilated draining veins. This change was found on examination of the surgical specimen to be caused by venous thrombosis.
Tolazoline hydrochloride (Priscoline) is a useful adjunct to hepatic angiography in the evaluation of space-occupying lesions. It was of definite value in 8 of 26 studies, either in facillitating the diagnosis or in evaluating the extent of disease. The mechanism of enhanced visualization is presumably related to its vasodilatory effect on the small blood vessels of the liver. Priscoline deserves further evaluation in the following situations: (a) a negative hepatic angiogram in the face of positive clinical findings or radionuclide images; (b) suspicious but not definitive findings on conventional hepatic angiography; and (c) assessment of the full extent of disease.
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