<b>Effect of ticagrelor monotherapy versus clopidogrel plus aspirin in aging patients with </b><b>unstable angina pectoris</b><b> after elective percutaneous coronary intervention</b>

The study aim to compare ticagrelor monotherapy following ticagrelor dual antiplatelet therapy (DAPT) (ticagrelor + aspirin) with clopidogrel DAPT (clopidogrel + aspirin) in elderly patients with unstable angina pectoris (UAP) after elective PCI