Abstract:
:In 84 consecutive patients with resting T-wave inversion, radionuclide angiography revealed significant new wall motion abnormalities in 13 (28 percent) of the 47 patients with persistent T-wave inversion and in 23 (62 percent) of the 37 patients with T-wave pseudonormalization during exercise (p less than 0.01). The response of the ejection fraction to exercise was better in patients with persistent T-wave inversion than in those with pseudonormalization (p less than 0.04). Mechanical evidence of ischemia was seen in 14 (61 percent) of the 23 patients with T-wave pseudonormalization but without ST-segment depression. In patients with resting T-wave inversion, pseudonormalization was slightly more sensitive but less specific than a positive exercise test for predicting significant new wall motion abnormalities or decreases in the ejection fraction with exercise. Although pseudonormalization is not extremely useful alone, the presence or absence of this finding can increase the diagnostic accuracy of exercise electrocardiography in patients with resting T-wave inversion and suspected ischemic heart disease.
journal_name
Chestjournal_title
Chestauthors
Lavie CJ,Oh JK,Mankin HT,Clements IP,Giuliani ER,Gibbons RJdoi
10.1378/chest.94.3.512subject
Has Abstractpub_date
1988-09-01 00:00:00pages
512-6issue
3eissn
0012-3692issn
1931-3543pii
S0012-3692(16)30154-4journal_volume
94pub_type
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