Why the study?
Do screening tests including dynamic tonometry accurately detect carotid occlusive disease in patients with carotid artery obstruction?
Do screening tests including dynamic tonometry accurately detect carotid occlusive disease in patients with carotid artery obstruction?
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Dynamic tonometry is a highly sensitive screening tool for detecting spontaneous, symptom-yielding carotid obstruction.
A battery of screening tests, including dynamic tonometry, arm-to-retina fluorescein circulation time, and carotid-compression tonographic tests, were applied to a clinical material of surgically induced or idiopathic carotid artery obstruction. The following conclusions were drawn: 1. A marked stenosis or full occlusion following I. C. A. clamping for intracranial aneurysms will yield results similar to those observed in spontaneous, unilateral I. C. A. obstruction by the applied tests. 2. Dynamic tonometry offered positive results in 100 % of unilateral and 83 % of bilateral cases of spontaneous, symptom-yielding carotid obstruction; it is recommended as a valuable, easy and accurate method for the screening of carotid occlusive disease. 3. A slight ocular hypotension, which may be of diagnostic importance in some cases, is present on the symptomatic side in most cases of unilateral and bilateral carotid occlusive disease.
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Nornes et al. (1971) studied this question.
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