scholarly journals Duration of Dual Antiplatelet Therapy After Implantation of Drug-Coated Balloon

2021 ◽  
Vol 8 ◽  
Author(s):  
Yuxuan Zhang ◽  
Xinyi Zhang ◽  
Qichao Dong ◽  
Delong Chen ◽  
Yi Xu ◽  
...  

The drug-coated balloon (DCB) is an emerging percutaneous coronary intervention (PCI) device with theoretical advantages and promising results. Recent clinical observations have demonstrated that DCB tends to have both good efficacy and a good safety profile in the treatment of in-stent restenosis (ISR) for both bare-metal and drug-eluting stents (DES), de novo coronary artery disease (CAD), and other situation, such as high bleeding risk, chronic total occlusion, and acute coronary syndrome (ACS). Dual antiplatelet therapy (DAPT) has become an essential medication in daily clinical practice, but the optimal duration of DAPT after the implantation of a DCB remains unknown. At the time of the first in vivo implantation of paclitaxel-DCB for the treatment of ISR in 2006, the protocol-defined DAPT duration was only 1 month. Subsequently, DAPT duration ranging from 1 to 12 months has been recommended by various trials. However, there have been no randomized controlled trials (RCTs) on the optimal duration of DAPT after DCB angioplasty. Current clinical guidelines normally recommend the duration of DAPT after DCB-only angioplasty based on data from RCTs on the optimal duration of DAPT after stenting. In this review, we summarized current clinical trials on DCB-only angioplasty for different types of CADs and their stipulated durations of DAPT, and compared their clinical results such as restenosis, target lesion revascularization (TLR) and stent thrombosis event. We hope this review can assist clinicians in making reasonable decisions about the duration of DAPT after DCB implantation.

2020 ◽  
Vol 18 (3) ◽  
pp. 237-248 ◽  
Author(s):  
Adriano Alatri ◽  
Lucia Mazzolai

Bleeding represents the most important complication of antithrombotic treatment, including anticoagulant and antiplatelet therapies. A number of scores were proposed to evaluate the risk of bleeding both for anticoagulant and antiplatelet treatment. In the last decade, 5 bleeding risk scores were published for use in atrial fibrillation patients, and 3 scores for patients receiving anticoagulants for venous thromboembolism therapy or prophylaxis. In addition, 3 scores were recently developed to assess inhospital or short-term bleeding risk in patients receiving antiplatelet therapy after Acute Coronary Syndrome (ACS) and Percutaneous Coronary Intervention (PCI). Furthermore, 3 additional scores have focused on long-term bleeding in outpatients receiving dual antiplatelet therapy after PCI. The aim of this review is to consider the evidence on bleeding scores.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
I Cavallari ◽  
E Sagazio ◽  
E Antonucci ◽  
P Calabro' ◽  
F Gragnano ◽  
...  

Abstract Background Diabetes is a known risk factor for a first or recurrent cardiovascular event, however, its association with an increased risk of bleeding is controversial. To date, no study has explored the prognostic weight of insulin therapy in the setting of ACS. Purpose To investigate the differential role of insulin versus no insulin therapy on ischemic and bleeding risks in patients with diabetes and ACS. Methods START-ANTIPLATELET is a prospective, real-world multicenter registry including consecutive patients admitted for ACS. For the purpose of this analysis, patients were stratified according to diabetes status and insulin therapy. We compared 1-year rates of major adverse cardiovascular events, a composite of cardiovascular death, myocardial infarction and stroke, and of any bleeding, according to diabetes status (no diabetes, diabetes not on insulin therapy, diabetes on insulin therapy). In addition, we evaluated the net clinical benefit of dual antiplatelet therapy with the newer P2Y12 inhibitors (ticagrelor or prasugrel) vs dual antiplatelet therapy with clopidogrel according to diabetes status. Results In an overall population of 907 patients, 198 had diabetes, 10.6% of whom were on insulin. From non-diabetic patients to diabetic patients not on insulin and diabetic patients on insulin there was a stepwise decrease of MACE-free survival (log-rank p 0.039) with incidence of events at 1 year being 3.8%, 6.8% (adjusted p vs no diabetes 0.49) and 12.5% (adjusted p vs no diabetes 0.047), respectively (Figure, panel A). The rates of any bleeding were higher in patients on insulin (20.8% vs 8.8% in those without diabetes and 5.8% in diabetic patients not receiving insulin; log-rank p 0.028; Figure, panel B). Multivariable analysis demonstrated an almost 5-fold increase of any bleeding in diabetic patients with vs without insulin (OR 4.98, 95% CI 1.46–16.92; p=0.010). In the overall population, the incidence of the net composite endpoint including MACE or major bleeding with the use of ticagrelor/prasugrel on top of aspirin was significantly lower compared to use of clopidogrel (4.7% vs 8.4%; OR 0.54, 95% CI 0.30–0.94, p=0.031). This net clinical benefit in patients receiving a newer P2Y12 inhibitor was regardless of the diabetes status (p for interaction 0.48). Conclusions In this cohort of ACS patients, the presence of diabetes stratified by insulin therapy was associated with a graded increase in the 1-year rates of MACE. Conversely, insulin therapy significantly contributed to the overall increase of bleeding risk in diabetes. Funding Acknowledgement Type of funding source: None


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