scholarly journals Combination anticoagulant or P2Y12 inhibitor with low-dose aspirin versus low-dose aspirin alone in patients at risk or with documented coronary and/or peripheral artery disease

Author(s):  
Craig I. Coleman ◽  
Akshay A. Kharat ◽  
Brahim Bookhart ◽  
William L. Baker
Heart ◽  
2021 ◽  
pp. heartjnl-2020-318758
Author(s):  
Gilles R Dagenais ◽  
Leanne Dyal ◽  
Jacqueline J Bosch ◽  
Darryl P Leong ◽  
Victor Aboyans ◽  
...  

ObjectiveIn patients with chronic coronary or peripheral artery disease enrolled in the Cardiovascular Outcomes for People Using Anticoagulation Strategies trial, randomised antithrombotic treatments were stopped after a median follow-up of 23 months because of benefits of the combination of rivaroxaban 2.5 mg two times per day and aspirin 100 mg once daily compared with aspirin 100 mg once daily. We assessed the effect of switching to non-study aspirin at the time of early stopping.MethodsIncident composite of myocardial infarction, stroke or cardiovascular death was estimated per 100 person-years (py) during randomised treatment (n=18 278) and after study treatment discontinuation to non-study aspirin (n=14 068).ResultsDuring randomised treatment, the combination compared with aspirin reduced the composite (2.2 vs 2.9/100 py, HR: 0.76, 95% CI 0.66 to 0.86), stroke (0.5 vs 0.8/100 py, HR: 0.58, 95% CI 0.44 to 0.76) and cardiovascular death (0.9 vs 1.2/100 py, HR: 0.78, 95% CI 0.64 to 0.96). During 1.02 years after early stopping, participants originally randomised to the combination compared with those randomised to aspirin had similar rates of the composite (2.1 vs 2.0/100 py, HR: 1.08, 95% CI 0.84 to 1.39) and cardiovascular death (1.0 vs 0.8/100 py, HR: 1.26, 95% CI 0.85 to 1.86) but higher stroke rate (0.7 vs 0.4/100 py, HR: 1.74, 95% CI 1.05 to 2.87) including a significant increase in ischaemic stroke during the first 6 months after switching to non-study aspirin.ConclusionDiscontinuing study rivaroxaban and aspirin to non-study aspirin was associated with the loss of cardiovascular benefits and a stroke excess.Trial registration numberNCT01776424.


Author(s):  
Rajesh M Kabadi ◽  
Ankitkumar Patel ◽  
Rajani Sharma ◽  
Rita Schmidt ◽  
Elias Iliadis

Background: Lower extremity peripheral artery disease (PAD) is a common syndrome that afflicts many individuals and leads to significant morbidity. Once appropriate at risk patients are identified, ankle-brachial index (ABI) testing is a relatively quick and inexpensive test that is recommended for proper assessment of PAD, per the recommendations outlined in the American College of Cardiology (ACC)/American Heart Association (AHA) Guidelines for the Management of Peripheral Artery Disease (PAD) (JACC, 2006). Outpatient cardiology practices often take care of individuals at risk for PAD and have the opportunity to test and appropriately treat this condition. Methods: A randomly selected group of 367 outpatients seen in a large academic cardiology practice from September 2011 underwent retrospective chart review. Risk factors for PAD that were assessed include history of smoking, hypertension, diabetes, hyperlipidemia, homocysteine levels, and CRP. Those that had three or more risk factors were classified as high risk and those with less than that were classified as low risk and frequency of ABI testing was evaluated. Fishers exact test was utilized for statistical analysis. Results: Fifty-one percent (N=187) of our population were classified as high risk for PAD, forty-three percent (N=158) were low risk, and six percent (N=22) were known to already have PAD. Amongst the high risk individuals, only six percent (N=12) had ABI testing performed while there were three percent (N=6) of low risk individuals that had this test (p=-0.34). Conclusions: There was no difference in ABI testing between high and low risk populations. Limitations of this study include lack of information regarding other diagnostic modalities that may have been used in place of ABI testing. Quality improvement may be achieved by increased use of such testing as this would allow for quicker identification of the disease, prompter treatment, and better outcomes, at a minimal cost.


2019 ◽  
Vol 27 (3) ◽  
pp. 296-307 ◽  
Author(s):  
Thomas Vanassche ◽  
Peter Verhamme ◽  
Sonia S Anand ◽  
Olga Shestakovska ◽  
Keith AA Fox ◽  
...  

Aims Secondary prevention in patients with coronary artery disease and peripheral artery disease involves antithrombotic therapy and optimal control of cardiovascular risk factors. In the Cardiovascular Outcomes for People Using Anticoagulation Strategies (COMPASS) study, adding low-dose rivaroxaban on top of aspirin lowered cardiovascular events, but there is limited data about risk factor control in secondary prevention. We studied the association between risk factor status and outcomes, and the impact of risk factor status on the treatment effect of rivaroxaban, in a large contemporary population of patients with coronary artery disease or peripheral artery disease. Methods and results We reported ischemic events (cardiovascular death, stroke, or myocardial infarction) in participants from the randomized, double-blind COMPASS study by individual risk factor (blood pressure, smoking status, cholesterol level, presence of diabetes, body mass index, and level of physical activity), and by number of risk factors. We compared rates and hazard ratios of patients treated with rivaroxaban plus aspirin vs aspirin alone within each risk factor category and tested for interaction between risk factor status and antithrombotic regimen. Complete baseline risk factor status was available in 27,117 (99%) patients. Status and number of risk factors were both associated with increased risk of ischemic events. Rates of ischemic events (hazard ratio 2.2; 95% confidence interval 1.8–2.6) and cardiovascular death (hazard ratio 2.0; 1.5–2.7) were more than twofold higher in patients with 4–6 compared with 0–1 risk factors ( p < 0.0001 for both). Rivaroxaban reduced event rates independently of the number of risk factors ( p interaction 0.93), with the largest absolute benefit in patients with the highest number of risk factors. Conclusion More favorable risk factor status and low-dose rivaroxaban were independently associated with lower risk of cardiovascular events.


2020 ◽  
Vol 22 (Supplement_L) ◽  
pp. L24-L27
Author(s):  
Leonardo Bolognese ◽  
Massimo Felici

Abstract Patients with established cardiovascular (CV) disease may suffer further CV events, despite receiving optimal medical treatment. Although platelet inhibition plays a central role in the prevention of new events, the use of anticoagulant therapies to reduce events in atheromatous disease has, until recently, been overlooked. The recent Rivaroxaban for the Prevention of Major Cardiovascular Events in Coronary or Peripheral Artery Disease (COMPASS) trial showed that rivaroxaban 2.5 mg twice daily given with low-dose aspirin reduces the incidence of the composite endpoint of stroke, heart attack, and death in patients with stable coronary artery disease. Although there are some limitations to the study, COMPASS offers promising conclusions and may change secondary prevention in patients with stable CV disease. This article reviews the results of the COMPASS study and how these results may affect patient management in everyday clinical practice.


Author(s):  
Donna Rahmatian ◽  
Arden R Barry

Abstract Purpose To identify randomized controlled trials that compared antiplatelet monotherapy to combination antiplatelet plus anticoagulant therapy and evaluated major adverse cardiovascular events (MACE) or major adverse limb events (MALE), death, or bleeding in patients with lower extremity peripheral artery disease (PAD). Summary A systematic search of MEDLINE, Embase, and CENTRAL databases revealed 5 trials. Two trials consisted of patients with stable PAD, while 3 trials examined patients with PAD post revascularization. Antiplatelet therapy was mostly aspirin (81-325 mg daily), and anticoagulation included rivaroxaban 2.5 mg twice daily or warfarin. Duration of follow-up ranged from 12 to 38 months. Two trials had low risk of bias, whereas 3 trials had high/unclear risk of bias. For patients with stable PAD, one trial showed that use of warfarin (or acenocoumarol) with antiplatelet therapy did not reduce MACE, MALE, or cardiovascular or all-cause death but increased the risk of life-threatening bleeding. A second trial demonstrated that low-dose rivaroxaban plus antiplatelet therapy lowered the risk of MACE and MALE, with no effect in preventing cardiovascular or all-cause death, but increased the risk of major bleeding. For patients with PAD post revascularization receiving warfarin and antiplatelet therapy, 2 trials showed no benefit in MACE or MALE but increased or similar rates of all-cause death and major bleeding. In a third trial, low-dose rivaroxaban plus aspirin reduced occurrence of the composite of MACE and MALE but increased major bleeding, with no effect on cardiovascular or all-cause death. Conclusion Dual-pathway inhibition with low-dose rivaroxaban and aspirin reduced MACE and MALE in patients with stable or revascularized PAD, but net clinical benefit is questionable.


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