@article{3049868,
    title = "Reliability of exercise-induced ST segment changes to detect restenosis
3 months after coronary angioplasty: Significance of the appearance in
other leads",
    author = "Michaelides, AP and Dilaveris, PE and Psomadaki, ZD and Aggelakas, S and and Stefanadis, C and Cokkinos, D and Gialafos, J and Toutouzas, PK",
    journal = "American Heart Journal",
    year = "1998",
    volume = "135",
    number = "1",
    pages = "74-81",
    publisher = "Mosby Year Book Inc",
    issn = "0002-8703, 1097-6744",
    doi = "10.1016/S0002-8703(98)70345-X",
    abstract = "Exercise-induced ST-segment changes 3 months after angioplasty sometimes
may show a false-positive result, We therefore analyzed the ST changes
observed during the exercise tests performed before and 3 months after
angioplasty in 118 patients with single-vessel coronary artery disease.
Ninety-two (78%) of the 118 patients had ST changes in the same lead
before and after angioplasty whereas the remaining 26 (22%) patients
had ST changes in other leads in the postangioplasty exercise test when
compared with the preangioplasty test. Restenosis was found in 44 (48%)
of the 92 patients with ST changes in the same lead but in only 4 (15%)
of the 26 patients with ST changes in other leads. We conclude that
exercise-induced ST segment changes are not reliable markers of
restenosis 3 months after angioplasty. ST segment changes observed in
other leads after angioplasty may show a false-positive result when
compared with the preangioplasty exercise test."
}