eighty-five patients admitted to our ccu for unstable angina ( ua ) with proven coronary artery disease , in whom i.v . therapy with nitroglycerin ( n ) and heparin ( h ) did not reduce both painful and painless episodes of myocardial ischaemia , were treated by i.v . administration of verapamil ( v ) and diltiazem ( d ) in order to assess the efficacy of calcium antagonists in reducing myocardial ischaemia .
C0002965
unstable angina
C0019134
heparin