Reliability of the exercise-induced ST-segment changes to detect restenosis three months after coronary angioplasty: Significance of the appearance in other leads

Background Exercise-induced ST-segment changes 3 months after angioplasty may sometimes show a false-positive result. Methods 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 dis...

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Bibliographic Details
Published in:The American heart journal 1998-03, Vol.135 (3), p.449-456
Main Authors: Michaelides, Andreas P., Dilaveris, Polychronis E., Psomadaki, Zoi D., Aggelakas, Stefanos, Stefanadis, Christodoulos, Cokkinos, Dennis, Gialafos, John, Toutouzas, Pavlos K.
Format: Article
Language:English
Subjects:
Adult
Aged
Angioplasty, Balloon, Coronary
Biological and medical sciences
Coronary Disease - diagnosis
Coronary Disease - therapy
Diseases of the cardiovascular system
Electrocardiography
Exercise Test
False Positive Reactions
Female
Humans
Male
Medical sciences
Middle Aged
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Recurrence
Reproducibility of Results
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Summary:Background Exercise-induced ST-segment changes 3 months after angioplasty may sometimes show a false-positive result. Methods 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. Results 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 test when compared with the preangioplasty exercise test. Restenosis was found in 44 (48%) of the 92 patients with ST changes in the same lead but in only four (15%) of the 26 patients with ST changes in other leads. Conclusions Exercise-induced ST-segment changes are not reliable markers of restenosis 3 months after angioplasty. ST-segment changes observed in other leads after angioplasty compared with the preangioplasty exercise test may show a false-positive result. (Am Heart J 1998;135:449-56.)
ISSN:0002-8703
1097-6744
DOI:10.1016/S0002-8703(98)70321-7