منابع مشابه
The nitroglycerin-flicker test.
The nitroglycerin-flicker test, as suggested and modified by Krasno and Ivy, has been used to test normal individuals and patients with a variety of cardiovascular diseases. The hypothesis that this test would serve as an index of the presence of vascular disease or spasm elsewhere in the body than the retina was explored. These studies have failed to justify the drawing of conclusions based on...
متن کاملDI AGNOSTIC VAL UE OF SUBL INGUAL NITROGLYCERIN TILT TEST: COMPARISON WITH THE STANDARD ISOPROTERENOL TILT TEST
Sublingual nitroglycerin (TNG) has been introduced as a promising provocative agent for tilt table testing, but it has not been compared directly with the standard isoproterenol (ISO) infusion test previously. We tried to assess the diagnostic value and safety of TNG tilt testing as compared with ISO infusion in patients with unexplained syncope. TNG and ISO tilt tests were performed in tw...
متن کاملSignificance of the nitroglycerin-flicker fusion response in normal subjects and patients with cardiovascular disease.
The Krasno-Ivy nitroglycerin-flicker fusion test was carried out in normal persons, and in patients with arterial hypertension and/or coronary disease. A positive test was obtained more often in patients with cardiovascular abnormalities than in normal individuals. In the former group the frequency of negative results and the inconstancy of response to multiple tests indicate the unrelia-bility...
متن کاملCritical flicker fusion test of potential vision.
PURPOSE To continue developing a potential vision test based on the critical flicker fusion (CFF) phenomenon by using a brighter stimulus and optimizing its size. SETTING Flinders Eye Centre, Flinders Medical Centre, Flinders University, Bedford Park, South Australia, Australia. METHODS In a prospective nonrandomized study, 225 participants were assigned to 1 of 4 groups: normal, media opac...
متن کاملP 448 Blue on yellow full field flicker test
m. To establish a quick and easy test to examine flicker functions of the blue-sensitive pathway in a clinica: setting. Method. A strong steady orange adaptation light was used to suppress the red and green cones. Adaptation and stimulation lights were superimposed evenly in a ping-pang ball cut in half and placed close to the eye. This provided a large stimulus field (90 ") making fixation not...
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ژورنال
عنوان ژورنال: Circulation
سال: 1951
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.4.3.350