[Exercise-induced myocardial ischemia in patients with coronary artery ectasia without significant coronary stenosis].
OBJECTIVE
To investigate whether exercise would induce myocardial ischemia in patients with coronary artery ectasia without significant coronary stenosis.


METHODS
A total of 41 patients (male 29, female 12) with coronary artery ectasia without significant coronary stenosis, confirmed by selective coronary angiography, were enrolled in the study group. Forty-one patients with normal coronary arteries were in the control group. All the patients received a clinical examination and treadmill exercise before selective coronary angiography.


RESULTS
Eighteen patients (43.9%) had typical angina in the study group with respect to two patients in the control group (chi(2)=10.498, P=0.001). In the study group, 32 cases had positive treadmill test with respect to five cases in the control group (chi(2)=35.903, P<0.0001).


CONCLUSIONS
Patients with coronary artery ectasia without significant coronary stenosis could get typical angina. Exercise could induce myocardial ischemia which should be paid attention to.
Huang
Wen-hui
WH
Guangdong Provincial Cardiovascular Institute, Guangzhou 510100, China.
Luo
Jian-fang
JF
Zhou
Ying-ling
YL
Zhao
Hong-lei
HL
Chen
Ji-yan
JY
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000209:etiology*; D017023:Coronary Angiography; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging* / Q000209:etiology