scholarly journals Possibility of using dabigatran in patients with atrial fibrillation and acute coronary syndrome and PCI

2019 ◽  
pp. 30-35
Author(s):  
A. D. Erlich
Keyword(s):  
Atrial Fibrillation ◽  
Acute Coronary Syndrome ◽  
Triple Therapy ◽  
Oral Anticoagulants ◽  
Dual Therapy ◽  
Clinical Problem ◽  
Coronary Intervention ◽  
Bleeding Complications ◽  
P2y12 Inhibitor ◽  
Coronary Syndrome

This article is devoted to the problem of combined antithrombotic therapy in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI) due to acute coronary syndrome (ACS). Traditionally, these patients require an oral anticoagulant (OAC) to prevent stroke and dual anti-platelet therapy (DAT) to prevent coronary complications. The necessity of combining various antithrombotic drugs, since this greatly increases the risk of bleeding is becoming an increasing relevant clinical problem. The prolonged triple therapy in the form of a combination of OAC and DAT does not bring additional benefit to the patients, but, on the contrary, may be potentially dangerous. Currently, the possibility of using several new oral anticoagulants (NOAC) in patients with AF and ACS/PCI in the form of dual therapy has been proven: combination of OAC and p2Y12 inhibitor. The article focuses on the RE-DUAL PCI study, in which the use of dabigatran at both doses permitted in AF (150 mg twice daily and 110 mg twice daily) in combination with the p2Y12 inhibitor was associated with fewer bleeding complications than during the triple therapy in the form of OAK + DAT.The article presents a clinical case of the possibility of management of a patient with AF and ACS under the modern clinical guidelines, as well as an overview of current guidelines for the use of OAC and DAT in patients with AF undergoing PCI. 

scholarly journals Combination of Oral Anticoagulants and Single Antiplatelets versus Triple Therapy in Nonvalvular Atrial Fibrillation and Acute Coronary Syndrome: Stroke Prevention among Asians

2020 ◽  
Vol 29 (02) ◽  
pp. 088-097
Author(s):  
Anwar Santoso ◽  
Sunu B. Raharjo
Keyword(s):  
Atrial Fibrillation ◽  
Acute Coronary Syndrome ◽  
Triple Therapy ◽  
Stroke Prevention ◽  
Thrombus Formation ◽  
Vitamin K Antagonists ◽  
Oral Anticoagulants ◽  
Bleeding Risk ◽  
Nonvalvular Atrial Fibrillation ◽  
Coronary Syndrome

AbstractAtrial fibrillation (AF), the most prevalent arrhythmic disease, tends to foster thrombus formation due to hemodynamic disturbances, leading to severe disabling and even fatal thromboembolic diseases. Meanwhile, patients with AF may also present with acute coronary syndrome (ACS) and coronary artery disease (CAD) requiring stenting, which creates a clinical dilemma considering that majority of such patients will likely receive oral anticoagulants (OACs) for stroke prevention and require additional double antiplatelet treatment (DAPT) to reduce recurrent cardiac events and in-stent thrombosis. In such cases, the gentle balance between bleeding risk and atherothromboembolic events needs to be carefully considered. Studies have shown that congestive heart failure, hypertension, age ≥ 75 years (doubled), diabetes mellitus, and previous stroke or transient ischemic attack (TIA; doubled)–vascular disease, age 65 to 74 years, sex category (female; CHA2DS2-VASc) scores outperform other scoring systems in Asian populations and that the hypertension, abnormal renal/liver function (1 point each), stroke, bleeding history or predisposition, labile international normalized ratio (INR), elderly (>65 years), drugs/alcohol concomitantly (1 point each; HAS-BLED) score, a simple clinical score that predicts bleeding risk in patients with AF, particularly among Asians, performs better than other bleeding scores. A high HAS-BLED score should not be used to rule out OAC treatment but should instead prompt clinicians to address correctable risk factors. Therefore, the current review attempted to analyze available data from patients with nonvalvular AF who underwent stenting for ACS or CAD and elaborate on the direct-acting oral anticoagulant (DOAC) and antiplatelet management among such patients. For majority of the patients, “triple therapy” comprising OAC, aspirin, and clopidogrel should be considered for 1 to 6 months following ACS. However, the optimal duration for “triple therapy” would depend on the patient's ischemic and bleeding risks, with DOACs being obviously safer than vitamin-K antagonists.

scholarly journals Novel Dual Therapy: A Paradigm Shift in Anticoagulation in Patients of Atrial Fibrillation Undergoing Percutaneous Coronary Intervention

TH Open ◽  
2020 ◽  
Vol 04 (04) ◽  
pp. e332-e343
Author(s):  
Akshyaya Pradhan ◽  
Monika Bhandari ◽  
Pravesh Vishwakarma ◽  
Rishi Sethi
Keyword(s):  
Atrial Fibrillation ◽  
Percutaneous Coronary Intervention ◽  
Triple Therapy ◽  
Antiplatelet Therapy ◽  
Paradigm Shift ◽  
Oral Anticoagulants ◽  
Dual Therapy ◽  
Coronary Intervention ◽  
Bleeding Events ◽  
Percutaneous Coronary

AbstractPatients with atrial fibrillation (AF) on long-term oral anticoagulation (OAC) either have underlying coronary artery disease or suffer from acute coronary syndromes necessitating a percutaneous coronary intervention (PCI). In such a scenario, an amalgamation of antiplatelet and antithrombotic therapy (conventionally called as “triple therapy”) is obligatory for preventing coronary ischemia and stroke. But such ischemic benefits are accrued at the cost of increased bleeding. We also now know that bleeding events following PCI are related to increased mortality. Balancing the bleeding and ischemic risks is often a clinical dilemma. With the advent of novel oral anticoagulants (NOAC's) with preserved efficacy and attenuated bleeding rates, anticoagulation in AF is undergoing paradigm shift. The spotlight is now shifting from conventional triple therapy (vitamin-K antagonist + dual antiplatelet therapy [VKA + DAPT]) to novel dual therapy (NOAC + single antiplatelet therapy [SAPT]) in situation of anticoagulated AF patients undergoing PCI. Such a strategy aims to ameliorate the higher bleeding risk with conventional VKA's while retaining the ischemic benefits. In this review, we briefly discuss the need for combination therapy, trials of novel dual therapy, strategies for mitigating bleeding, the current guidelines, and the future perspectives in AF undergoing PCI with stent(s).

Prevalence of Atrial Fibrillation and use of Oral Antithrombotic Therapy in Patients with Acute Coronary Syndrome

Kardiologiia ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 40-48 ◽  
Author(s):  
O. A. Baturina ◽  
D. A. Andreev ◽  
N. A. Ananicheva ◽  
M. Yu. Gilyarov ◽  
D. A. Sychev ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Percutaneous Coronary Intervention ◽  
Acute Coronary Syndrome ◽  
Oral Anticoagulants ◽  
Antiplatelet Agent ◽  
Antiplatelet Agents ◽  
Coronary Intervention ◽  
Thromboembolic Complications ◽  
Coronary Syndrome ◽  
Percutaneous Coronary

Purpose:To assess the prevalence of atrial fibrillation (AF) and use of antithrombotic agents in adult patients with acute coronary syndrome (ACS).Materials and Methods.We consecutively enrolled all ACS patients (n=1155) who were hospitalized in two Moscowbased percutaneous coronary intervention centers (each center performs over 500 PCIs a year) between October 2017 and February 2018. AF was diagnosed in 204 patients (17.7%). The risk of thromboembolic complications was assessed using the CHA2DS2-VASc Score. The risk of hemorrhagic complications was assessed using the HAS-BLED Score. The data were processed using StatSoft Statistica 10.0 and IBM SPSS Statistics v.23 software.Results. The prevalence of diagnosed AF was 13.6%, while the prevalence of undiagnosed AF was 4.1%. Of the 179 discharged patients with AF, only 2 had a low risk of ischemic stroke (IS). One hundred and fifty patients (83.8%) eligible for oral anticoagulant therapy received oral anticoagulants. Patients with diagnosed AF were administered oral anticoagulants (OACs) significantly more often than patients with undiagnosed AF [125 (91.9%) vs. 25 (58.1%), р<0.001]. Novel oral anticoagulants (NOACs) were administered four times more often than vitamin K antagonists [120 (80.0%) vs. 29 (19.3%), р<0.001]. Rivaroxaban was used in 51.3% of cases. Of the 29 patients treated with warfarin, only 3 (10.3%) achieved the target international normalized ratio (INR) at discharge. Of the 107 patients who underwent percutaneous coronary intervention (PCI), 77 patients (80%) received an OAC and two antiplatelet agents (with 74% receiving this three-agent therapy for one month), 11 patients (10.3%) received an OAC and an antiplatelet agent, and 18 patients (16.8%) received two antiplatelet agents. The only antiplatelet agent used as part of the three-agent therapy was clopidogrel. The three-agent therapy without PCI was administered in 43.1% of cases.Conclusion.We found that the prevalence of AF in patients with ACS was high. The fact that doctors administered NOACs suggests that they are aware of the need to use these agents to prevent thromboembolic complications in AF patients.

Thrombin Generation in Patients with Atrial Fibrillation Undergoing Percutaneous Coronary Intervention

Cardiology ◽  
2021 ◽  
pp. 1-6
Author(s):  
Chen Gurevitz ◽  
Alon Eisen ◽  
Eli Lev ◽  
Osnat Itzhaki Ben Zadok ◽  
Leor Perl ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Percutaneous Coronary Intervention ◽  
Triple Therapy ◽  
Thrombin Generation ◽  
Dual Therapy ◽  
Coronary Intervention ◽  
Withdrawal Time ◽  
Coronary Syndrome ◽  
Percutaneous Coronary ◽  
Significant Difference

<b><i>Background:</i></b> The optimal antithrombotic treatment for patients with atrial fibrillation (AF) that undergo percutaneous coronary intervention (PCI) is controversial. Dual therapy (clopidogrel and a direct oral anticoagulant [DOAC]) is safer than triple therapy (warfarin, aspirin, and clopidogrel), while efficacy is unclear. We aimed to evaluate thrombin generation (TG) under dual and triple therapy. <b><i>Methods:</i></b> A noninterventional prospective trial in patients with AF undergoing PCI. Patients received 4 weeks of triple therapy with aspirin, clopidogrel, and a DOAC followed by aspirin withdrawal. TG was measured in platelet-rich plasma (PRP) and platelet-poor plasma (PPP) at 3 <i>five to 21</i> points, day 1 after PCI (TIME 0), 4 weeks after PCI (TIME 1), and 2 weeks after aspirin withdrawal (TIME 2). <b><i>Results:</i></b> Twenty-three patients (18 men, median age 78 years, 83% with acute coronary syndrome) were included. Endogenous thrombin potential (ETP) in PPP was high at TIME 0 compared with TIME 1 (ETP 3,178 ± 248 nM vs. 2,378 ± 222 nM, <i>p</i> = 0.005). These results remained consistent when measured in PRP. No significant difference in ETP was found before (TIME 1) and after aspirin withdrawal (TIME 2) although few patients had high ETP levels after stopping aspirin. <b><i>Conclusions:</i></b> TG potential is high immediately after PCI and decreases 4 weeks after PCI in patients receiving triple therapy. TG remains constant after aspirin withdrawal in most patients, suggesting that after 1 month the antithrombotic effect of dual therapy may be similar to triple therapy.

scholarly journals Antithrombotic Management for Atrial Fibrillation Patients Undergoing Percutaneous Coronary Intervention or With Acute Coronary Syndrome: An Evidence-Based Update

2021 ◽  
Vol 8 ◽  
Author(s):  
Shujuan Zhao ◽  
Xuejiao Hong ◽  
Haixia Cai ◽  
Mingzhou Liu ◽  
Bing Li ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Percutaneous Coronary Intervention ◽  
Acute Coronary Syndrome ◽  
Vitamin K ◽  
Coronary Intervention ◽  
Vitamin K Antagonist ◽  
P2y12 Inhibitor ◽  
Coronary Syndrome ◽  
Percutaneous Coronary ◽  
Antithrombotic Management

Combined antithrombotic regimens for atrial fibrillation (AF) patients with coronary artery disease, particularly for those who have acute coronary syndrome (ACS) and/or are undergoing percutaneous coronary intervention (PCI), presents a great challenge in the real-world clinical scenario. Conventionally, a triple antithrombotic therapy (TAT), which consists of combined oral anticoagulant therapy to prevent systemic embolism or stroke along with dual antiplatelet therapy to prevent coronary arterial thrombosis (CAT), is used. However, TAT has been associated with a significantly increased risk of bleeding. With the emergence of non-vitamin K antagonist oral anticoagulants (NOACs), randomized controlled trials have demonstrated a better risk-to-benefit ratio of dual antithrombotic therapy (DAT) in combination of a NOAC and with a P2Y12 inhibitor than vitamin K antagonist-based TAT. The results of these studies have impacted the recommendations of current international guidelines, which favor a DAT with a NOAC and P2Y12 inhibitor (especially clopidogrel) in this clinical setting. Additionally, aspirin can be administered during the periprocedural period, while the treatment duration of TAT should be as short as possible. In this article, we summarize the up-to-date evidence regarding antithrombotic regimens for AF patients with PCI or ACS, with a specific focus on the optimal approach and critical discussions of key scientific data and future developments for antithrombotic management in these patients.

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