Exercise-induced ST-segment elevation in patients with a recent acute myocardial infarction treated by primary percutaneous coronary intervention.
OBJECTIVE
To get insight in the mechanism of exercise-induced ST-segment elevation (STE) in patients with Q/QS waves at the electrocardiogram (ECG).


METHODS
We performed exercise stress test in 13 patients with anterior acute myocardial infarction treated by successful primary percutaneous coronary intervention (PCI).


RESULTS
Compared to rest, an additional STE > or = 1 mm in one or more precordial ECG leads during exercise occurred in nine patients (69%), in the absence of symptoms.


CONCLUSIONS
In acute myocardial infarction (MI) patients, treated by primary PCI and showing optimal coronary blood flow restoration at angiography, STE can still be induced by exercise in Q/QS wave ECG leads. This finding lends further support to the theory that exercise-induced STE in this clinical context is unlikely to represent by itself transient myocardial ischemia or viability.
Infusino
Fabio
F
Istituto di Cardiologia, Università Cattolica del Sacro Cuore, Rome, Italy.
Lanza
Gaetano A
GA
Larosa
Claudio
C
Sgueglia
Gregory A
GA
Marinaccio
Leonardo
L
Lamendola
Priscilla
P
Mariani
Luca
L
Santangeli
Pasquale
P
Sestito
Alfonso
A
Crea
Filippo
F
D015906:Angioplasty, Balloon, Coronary; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology* / Q000628:therapy*