[Effects of myocardial ischemia on 24-hour QT interval variability].
OBJECTIVE
To explore the significance of QT variability in myocardial ischemia.


METHODS
Twenty-four-hour QT interval variability in 37 patients with myocardial ischemia and 42 patients without myocardial ischemia were measured with 24-hour Holter recordings.


RESULTS
QT interval variability in patients with myocardial ischemia was larger than that in patients without myocardial ischemia.


CONCLUSIONS
Myocardial ischemia can influence QT interval variability.
Xie
X M
XM
Department of Cardiology, The Second Affiliated Hospital, Hunan Medical University, Changsha 410011.
Zhao
S P
SP
Yu
S F
SF
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015716:Electrocardiography, Ambulatory; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000503:physiopathology*