scholarly journals Dual-Antiplatelet Therapy for More Than Six Months After Endovascular Revascularization in Patients With Lower-Extremity Artery Disease

2021 ◽  
Author(s):  
Jongkwon Seo ◽  
Byung Gyu Kim ◽  
Gwang Sil Kim ◽  
Moo-Nyun Jin ◽  
Hye Young Lee ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Lower Extremity ◽  
Antiplatelet Therapy ◽  
Dual Antiplatelet Therapy ◽  
Hazard Ratio ◽  
Intergroup Difference ◽  
Significant Intergroup Difference ◽  
Endovascular Revascularization ◽  
Artery Disease ◽  
Lower Extremity Artery Disease

Abstract Background: The duration of antiplatelet therapy after endovascular revascularization in patients with lower-extremity artery disease (LEAD) has not been well-established. This study aimed to investigate the optimal strategy for antiplatelet therapy after successful endovascular revascularization in patients with LEAD. Methods: From April 2009 to June 2019, 376 patients with LEAD underwent successful endovascular revascularization. After the procedure, the patients received mono-antiplatelet therapy (MAPT) or dual-antiplatelet therapy (DAPT) of various durations and were classified into 2 groups (MAPT or DAPT < 6 months vs. DAPT ≥ 6 months). The primary outcomes were major adverse cardiovascular events (MACE) and major adverse limb events (MALE). The safety outcome was moderate-to-severe bleeding according to the Global Use of Strategies to Open Occluded Arteries (GUSTO) criteria.Results: Over the 40-month follow-up period, MACE occurred less frequently in the DAPT ≥ 6 months group than the MAPT or DAPT < 6 months group (12.4% vs. 23.8%; hazard ratio: 0.62; 95% confidence interval: 0.40 to 0.97; p = 0.038) after inverse probability-weighted adjustment and propensity-score matching. The incidence of MALE showed no significant intergroup difference (17.1% vs. 13.1%; hazard ratio: 0.94; 95% confidence interval: 0.56 to 1.59; p = 0.822). The incidence of moderate-to-severe GUSTO bleeding also showed no significant intergroup difference (3.5% vs. 4.9%; hazard ratio: 0.59; 95% confidence interval: 0.21 to 1.63; p = 0.308). Conclusions: For patients with LEAD, DAPT for ≥6 months after endovascular revascularization was associated with a lower incidence of MACE without increasing the risk of bleeding events.

Antithrombotic Therapy in Lower Extremity Artery Disease

2020 ◽  
Vol 18 (3) ◽  
pp. 215-222 ◽  
Author(s):  
Mislav Vrsalovic ◽  
Victor Aboyans
Keyword(s):  
Lower Extremity ◽  
Antiplatelet Therapy ◽  
Antithrombotic Therapy ◽  
Cardiovascular Events ◽  
Cardiovascular Outcomes ◽  
Lower Limbs ◽  
Stent Type ◽  
Increased Risk ◽  
Artery Disease ◽  
Lower Extremity Artery Disease

Lower extremity artery disease (LEAD) is a marker of a more advanced atherosclerotic process often affecting multiple vascular beds beyond the lower limbs, with a consequent increased risk for all-cause and cardiovascular mortality. Antithrombotic therapy is the cornerstone of management of these patients to prevent ischaemic cardiovascular and limb events and death. In patients with symptomatic LEAD, the efficacy of aspirin has been established long ago for the prevention of cardiovascular events. In the current guidelines, clopidogrel may be preferred over aspirin following its incremental ability to prevent cardiovascular events, while ticagrelor is not superior to clopidogrel in reducing cardiovascular outcomes. Dual antiplatelet therapy (DAPT, aspirin with clopidogrel) is currently recommended for at least 1 month after endovascular interventions irrespective of the stent type. Antiplatelet monotherapy is recommended after infra-inguinal bypass surgery, and DAPT may be considered in below-the-knee bypass with a prosthetic graft. In symptomatic LEAD, the addition of anticoagulant (vitamin K antagonists) to antiplatelet therapy increased the risk of major and life-threatening bleeding without benefit regarding cardiovascular outcomes. In a recent trial, low dose of direct oral anticoagulant rivaroxaban plus aspirin showed promising results, not only to reduce death and major cardiovascular events, but also major limb events including amputation. Yet, this option should be considered especially in very high risk patients, after considering also the bleeding risk. Despite all the evidence accumulated since >40 years, many patients with LEAD remain undertreated and deserve close attention and implementation of guidelines advocating the use of antithrombotic therapies, tailored according to their level of risk.

scholarly journals Practice patterns of dual antiplatelet therapy after lower extremity endovascular interventions

2019 ◽  
Vol 24 (6) ◽  
pp. 528-535 ◽  
Author(s):  
Tanner I Kim ◽  
Julia F Chen ◽  
Kristine C Orion
Keyword(s):  
Lower Extremity ◽  
New England ◽  
Antiplatelet Therapy ◽  
Practice Patterns ◽  
Dual Antiplatelet Therapy ◽  
Endovascular Intervention ◽  
Endovascular Interventions ◽  
Vascular Bypass ◽  
Artery Disease

Antiplatelet therapy is commonly prescribed following endovascular interventions. However, there is limited data regarding the regimen and duration of antiplatelet therapy following lower extremity endovascular interventions. The aim of this study was to investigate the practice patterns of dual antiplatelet therapy (DAPT) after lower extremity endovascular interventions. We identified all patients who received an endovascular intervention in the Vascular Study Group of New England (VSGNE) registry from 2010 through 2018. The antiplatelet regimen was examined at the time of discharge and follow-up. Variables predicting discharge antiplatelet therapy and duration of antiplatelet therapy were investigated. There were 13,510 (57.69%) patients discharged on DAPT, 8618 (36.80%) patients discharged on single antiplatelet therapy, and 1292 (5.51%) patients discharged without antiplatelet therapy. Patients with coronary artery disease (CAD), prior vascular bypass and endovascular intervention, preoperative statin use, stent placement compared with angioplasty, and femoropopliteal and tibial treatment were associated with higher odds of being discharged with DAPT compared with no antiplatelet therapy and single antiplatelet therapy. Of the patients discharged on DAPT who were followed up at 9–12 months and 21–24 months, 56.49% and 49.63% remained on DAPT, respectively. Only a narrow margin of the patient majority undergoing endovascular interventions was discharged with DAPT, suggesting that only a small proportion of patients undergoing endovascular intervention remain on DAPT long-term. As the number of peripheral vascular interventions continues to grow, further studies are crucial to identify the optimal duration of DAPT.

scholarly journals Molecular Mechanisms Associated with ROS-Dependent Angiogenesis in Lower Extremity Artery Disease

Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 735
Author(s):  
Greg Hutchings ◽  
Łukasz Kruszyna ◽  
Mariusz J. Nawrocki ◽  
Ewa Strauss ◽  
Rut Bryl ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Blood Vessel ◽  
Lower Extremity ◽  
Molecular Mechanisms ◽  
Lower Extremities ◽  
Tissue Response ◽  
Peripheral Arteries ◽  
Artery Disease ◽  
Lower Extremity Artery Disease

Currently, atherosclerosis, which affects the vascular bed of all vital organs and tissues, is considered as a leading cause of death. Most commonly, atherosclerosis involves coronary and peripheral arteries, which results in acute (e.g., myocardial infarction, lower extremities ischemia) or chronic (persistent ischemia leading to severe heart failure) consequences. All of them have a marked unfavorable impact on the quality of life and are associated with increased mortality and morbidity in human populations. Lower extremity artery disease (LEAD, also defined as peripheral artery disease, PAD) refers to atherosclerotic occlusive disease of the lower extremities, where partial or complete obstruction of peripheral arteries is observed. Decreased perfusion can result in ischemic pain, non-healing wounds, and ischemic ulcers, and significantly reduce the quality of life. However, the progressive atherosclerotic changes cause stimulation of tissue response processes, like vessel wall remodeling and neovascularization. These mechanisms of adapting the vascular network to pathological conditions seem to play a key role in reducing the impact of the changes limiting the flow of blood. Neovascularization as a response to ischemia induces sprouting and expansion of the endothelium to repair and grow the vessels of the circulatory system. Neovascularization consists of three different biological processes: vasculogenesis, angiogenesis, and arteriogenesis. Both molecular and environmental factors that may affect the process of development and growth of blood vessels were analyzed. Particular attention was paid to the changes taking place during LEAD. It is important to consider the molecular mechanisms underpinning vessel growth. These mechanisms will also be examined in the context of diseases commonly affecting blood vessel function, or those treatable in part by manipulation of angiogenesis. Furthermore, it may be possible to induce the process of blood vessel development and growth to treat peripheral vascular disease and wound healing. Reactive oxygen species (ROS) play an important role in regulation of essential cellular signaling pathways such as cell differentiation, proliferation, migration and apoptosis. With regard to the repair processes taking place during diseases such as LEAD, prospective therapeutic methods have been described that could significantly improve the treatment of vessel diseases in the future. Summarizing, regenerative medicine holds the potential to transform the therapeutic methods in heart and vessel diseases treatment.

Association of plasma miR-223 and platelet reactivity in patients with coronary artery disease on dual antiplatelet therapy: A preliminary report

Platelets ◽  
2014 ◽  
Vol 26 (6) ◽  
pp. 593-597 ◽  
Author(s):  
Bernadeta Chyrchel ◽  
Justyna Totoń-Żurańska ◽  
Olga Kruszelnicka ◽  
Michał Chyrchel ◽  
Waldemar Mielecki ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Antiplatelet Therapy ◽  
Preliminary Report ◽  
Dual Antiplatelet Therapy ◽  
Platelet Reactivity ◽  
Artery Disease

Are hypertensive patients with history of coronary artery disease at risk for silent lower extremity artery disease?

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Eka Prasetya Budi Mulia ◽  
Kevin Yuwono ◽  
Raden Mohammad Budiarto
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Lower Extremity ◽  
Pearson Correlation ◽  
Ankle Brachial Index ◽  
Chi Square ◽  
Hypertensive Patients ◽  
History Of ◽  
Artery Disease ◽  
Lower Extremity Artery Disease

Abstract Objectives We aimed to investigate the association between hypertension and asymptomatic lower extremity artery disease (LEAD) in outpatients with known history of coronary artery disease (CAD). Methods Patients with known history of CAD who have been undergone coronary angiography and have significant coronary artery stenosis (more than 60%) were included. LEAD was defined as ankle-brachial index (ABI) < 0.9 in either leg. The risk of LEAD in hypertensive group was analyzed using chi-square test, and correlation between blood pressure (BP) and ABI was analyzed using Pearson correlation test in SPSS v.25. Results One hundred and four patients were included. 82.7% of patients were male. Mean age was 57.05 ± 7.97. The prevalence of hypertension was 35.6%, and the prevalence of LEAD was 16.3%. A higher proportion of LEAD was found in hypertensive (18.9%) compared to non-hypertensive (14.9%), although not statistically significant (OR: 1.33; 95% CI: 0.46 to 3.85; p=0.598). There was an association between ABI and systolic BP (p=0.016), but not with diastolic BP (p=0.102). Conclusions Our study showed that the prevalence of LEAD in hypertension, especially in the CAD population, is relatively high. There was no association between hypertension and LEAD, but a higher prevalence of LEAD was found in hypertensive patients. Nevertheless, LEAD screening is still recommended in hypertensive patients, especially in the CAD population, given the fact that outcomes of health and mortality are worse for those with concomitants of these diseases.

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