TITLE

THE USE OF THE VALSALVA-EKG TEST FOR DIFFERENTIATION OF FUNCTIONAL FROM ORGANIC T-WAVE ABNORMALITIES

AUTHOR(S)
Leon-Sotomayor, Luis
PUB. DATE
October 1968
SOURCE
Angiology;Oct1968, Vol. 19 Issue 9, p511
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This study describes the application of the Valsalva maneuver in the electrocardiogram for the differentiation between functional and organic T-wave abnormalities. The study comprised no patients who were arbitrarily assigned to 5 different groups: Groups 1 and 2 consisted of groups of patients with postviral autonomic disturbances with and without EKG abnormalities; group 3 consisted of neuropsychiatric patients with autonomic disturbances; group 4 were patients with clinically proven arteriosclerotic heart disease and group 5 consisted of healthy controls. Patients with abnormal EKG and a false-positive exercise electrocardiogram due to neurovegetative disturbance resulting from either viral infection or neuropsychiatric disorders were observed. The Valsalva-EKG test was able to assist in the differentiation of nonspecific T-wave abnormalities due to an organic cause from those resulting from autonomic disturbance. Under these circumytanoes, functional T-wave abnormalities were magnified by the Valsaiva test while the ones due to organic heart disease were not affected. Other potential uses of this test are in the electrocardiographic diagnosis of cardiac arrhythmias and as a test for the early detection of digitalis toxicity. Criteria for the appropriate interpretation of the test are formulated. Attention is called to potential pitfalls and complications which can be associated with the use of the Valsalva maneuver. Possible mechanisms involved are discussed.
ACCESSION #
16370497

 

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