in this study the effect of aminophylline on effort electrocardiographic ( ecg ) alterations and chest pain was tested in eight patients with syndrome x ( anginal chest pain on effort , ischemic ecg changes during exercise , positive dipyridamole test , normal epicardial coronary arteries on angiography and absence of coronary spasm after ergonovine ) .
C0206064
syndrome x
C0002962
anginal