patients with unstable angina pectoris who reported chest pain within 24 hours of study had higher txb2 cs/ao ratios ( 5.8 +/- 2.8 , mean +/- s.d . ) than patients whose most recent anginal pain was more than 96 hours before study ( 1.3 +/- 0.6 ; p less than 0.05 ) , than those with nonischemic chest pain ( 1.2 +/- 0.4 ; p less than 0.05 ) , or with valvular or congenital nonischemic heart disease ( 1.2 +/- 0.6 ; p less than 0.05 ) .
C0002965
unstable
C0002962
anginal pain