ArticleDrugs & aging2025
1-Month Versus 12-Month Dual Antiplatelet Therapy for Patients with Chronic Total Occlusion After Successful Percutaneous Coronary Intervention.
Article in Drugs & aging, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeCompared with long-term dual antiplatelet therapy (DAPT, aspirin with clopidogrel or ticagrelor), short-term DAPT followed by single antiplatelet therapy (SAPT, clopidogrel or ticagrelor) has demonstrated superiority in reducing bleeding risk while maintaining non-inferior in cardiovascular benefits in coronary heart disease (CHD) after successful percutaneous coronary intervention (PCI). However, no prospective study has explored the benefits of this short-term regimen on patients with chronic total occlusion (CTO) undergoing PCI.
methodsConsecutive patients who underwent successful elective CTO-PCI were prospectively enrolled from April 2019 to May 2021. After receiving 1-month DAPT, all patients were divided into two groups: SAPT group (followed by clopidogrel or ticagrelor monotherapy) and DAPT group (continued with dual antiplatelet therapy). Detailed baseline characteristics, angiographic and procedural details, and 1-year follow-up data were collected. The endpoints were major adverse cardiovascular events (MACE) and bleeding.
resultsA total of 701 patients who underwent successful CTO-PCI were enrolled, among whom 330 patients (47.1%) received DAPT and 371 patients (52.9%) received SAPT (clopidogrel or ticagrelor) after 1-month DAPT. Compared with patients receiving DAPT, patients in the SAPT (clopidogrel or ticagrelor) group had a lower rate of previous stroke, fewer left anterior descending coronary artery (LAD) lesions and contrast volume, and fewer lesions per patient, but longer lesion length (P < 0.05). The incidence of MACE (14.5% versus 15.4%; p = 0.742) was not significantly different between the two groups. The DAPT group showed a higher incidence of minor bleeding (BARC types 1 or 2; 12.7% versus 2.3%, p < 0.001) than SAPT (clopidogrel or ticagrelor), while no difference was found for major bleeding (BARC types 3 or 5; 1.2% versus 2.3%, p = 0.261).
conclusionsCompared with standard 12-month DAPT, 1-month DAPT followed by clopidogrel or ticagrelor monotherapy resulted in lower bleeding risks and similar cardiovascular benefits in CTO-PCI patients.
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