@article{3046516,
    title = "EXERCISE-INDUCED QRS DURATION CHANGES IN PATIENTS WITH CORONARY-ARTERY
DISEASE-APPEARING WALKTHROUGH ANGINA",
    author = "MICHAELIDES, AP and PSOMADAKI, ZD and PAPAS, K and TOUTOUZAS, PK",
    journal = "Journal of Electrocardiology",
    year = "1994",
    volume = "27",
    number = "3",
    pages = "209-213",
    publisher = "CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS",
    issn = "0022-0736, 1532-8430",
    doi = "10.1016/S0022-0736(94)80004-9",
    keywords = "EXERCISE TEST; WALKTHROUGH ANGINA; QRS PROLONGATION; CORONARY ARTERY
DISEASE; MYOCARDIAL ISCHEMIA",
    abstract = "Two patients with coronary artery disease appearing as ‘’walkthrough”
angina underwent a treadmill exercise test. During the exercise, the
patients appeared to have anginal pain associated with ST-segment
depression and increased QRS duration. As the patients continued
walking, anginal pain disappeared and a concomitant lessening in
ST-segment depression and QRS prolongation was observed. Thus, the fact
that the onset of angina was associated with ST-segment depression and
prolonged QRS duration, while the disappearance of angina was associated
with a decrease in ST-segment depression and QRS prolongation, is
indicative of the effect of exercise-induced myocardial ischemia on QRS
duration."
}