scholarly journals Evaluation of adherence of patients with atrial fibrillation to anticoagulant therapy at the outpatient stage of treatment

Author(s):  
A. V. Sokolov ◽  
T. E. Lipatova ◽  
O. V. Reshetko

Despite clinical guidelines for the treatment of atrial fibrillation (AF) patient adherence to oral anticoagulants (OACs) in routine clinical practice remains low. Assessing the factors affecting adherence to the OACs regimen and developing strategies for its improvement is important. Aim. To assess the adherence of patients with AF to the prescribed anticoagulant therapy at the outpatient stage of treatment. Methodology. The object of the study was 165 patients with nonvalvular AF undergoing treatment in a specialized cardiology department or receiving outpatient treatment in a specialized cardiological dispensary in Saratov from February 2018 to December 2019. After 3, 6, 12 months, a telephone contact with the patients was carried out, a specially designed questionnaire was filled out, in which the anticoagulant therapy received by AF patients was reflected, the Morisky-Green questionnaire was filled out, the answers of patients about the reasons for skipping or stopping the administration of the OACs were recorded. Results. After 3 months. 16.6 % of AF patients replaced the OACs intake with antiplatelet agents, 16 % refused antithrombotic therapy; 43.1 % of AF patients were adherent to OACs. After 6 months. antiplatelet agents were taken by 24.5 % patients (p<0.05), 11.9 % completely stopped taking antithrombotic drugs; 30.8 % of patients were adherent to OACs (p<0.05). After 12 29,5 % patients replaced OACs treatment with antiplatelet agents, 7.6 % patients did not take any antithrombotic drugs; 31.8 % of AF patients were adherent to OACs. The most common reasons for a decrease in the adherence to OACs therapy were the cost of drugs, lack of understanding of the value of OACs administration in AF, and the lack of appreciable effect of OACs administration. Conclusion. At the outpatient stage of treatment, there was an insufficient level of adherence of AFpatients to OACs treatment.

2019 ◽  
Vol 13 (2) ◽  
pp. 199-207
Author(s):  
Cédric Villain ◽  
Sophie Liabeuf ◽  
Marie Metzger ◽  
Christian Combe ◽  
Denis Fouque ◽  
...  

Abstract Background Elderly patients with chronic kidney disease (CKD) are often excluded from clinical trials; this may affect their use of essential drugs for cardiovascular complications. We sought to assess the impact of age on cardiovascular drug use in elderly patients with CKD. Methods We used baseline data from the Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) cohort including 3033 adult patients with CKD Stages 3 and 4. We studied the use of recommended drugs for coronary artery disease (CAD), stroke and atrial fibrillation by age, after adjusting for socio-demographic and clinical conditions. Results The patients’ mean age was 66.8 years (mean estimated glomerular filtration rate 32.9 mL/min/1.73 m2). The prevalence of CAD was 24.5% [81.3% receiving antiplatelet agents, 75.6% renin–angiotensin system (RAS) blockers, 65.4% β-blockers and 81.3% lipid-lowering therapy], that of stroke 10.0% (88.8% receiving antithrombotic drugs) and that of atrial fibrillation 11.1% (69.5% receiving oral anticoagulants). Compared with patients aged &lt;65 years, older age (≥65 years) was associated with greater use of antithrombotic drugs in stroke [adjusted odds ratio (aOR) (95% confidence interval) = 2.83 (1.04–7.73) for patients aged (75–84 years)] and less use of RAS blockers [aOR = 0.39 (0.16–0.89) for patients aged ≥85 years], β-blockers [aOR = 0.31 (0.19–0.53) for patients aged 75–84 years] and lipid-lowering therapy [aOR = 0.39 (0.15–1.02) for patients aged ≥85 years, P for trend = 0.01] in CAD. Older age was not associated with less use of antiplatelet agents in CAD or oral anticoagulants in atrial fibrillation. Conclusions In patients with CKD, older age per se was not associated with the underuse of antithrombotic drugs but was for other major drugs, with a potential impact on cardiovascular outcomes.


2020 ◽  
Vol 27 (4) ◽  
pp. 45-53
Author(s):  
N. V. Bezditko

The aim – assessment of pharmacoeconomic feasibility of use for the prevention of thromboembolic complications (cerebral or systemic embolism) in patients with atrial fibrillation indirect anticoagulant warfarin compared with oral anticoagulants direct action in the modern Ukrainian health care system.Materials and methods. Used pharmacoeconomic methods to minimize costs, the mysterious cost of the disease. The supply of medications was determined according to the methodology of PBX/DDD, the economic affordability of medications was determined according to the value of the indicator Ca.s.Results and discussion. Drug consumption was determined according to the ATC/DDD methodology based on the data of the drug market research system Pharmexplorer, the economic availability of drugs was determined according to the value of Ca.s. An analysis of the comparative efficacy and safety of NOAC and warfarin according to the latest systematic reviews and meta-analyzes. According to the results of the analysis of the pharmaceutical market, it is established that currently in active retail sale in Ukraine there are 15 drugs NOAC (2 drugs apixaban, 6 drugs dabigatran and 7 drugs rivaroxaban) and 11 medications warfarin from 4 manufacturers. It is determined which drugs containing the same substance are the cheapest in terms of the cost of one DDD. It is established that the indicator of Ca.s. 80 % of warfarin drugs are moderately available, and all NOAC s are not available. The level of total consumption of anticoagulant drugs in Ukraine in 2019 was 1.7 DDDs, which, taking into account the prevalence of AF, suggests the existence of a significant number of patients with AF who do not receive appropriate anticoagulant therapy. It is established that the level of drug consumption does not depend on the cost of the drug.Conclusions. Under the current conditions of the health care system of Ukraine, warfarin is a more cost-effective drug for the treatment of atrial fibrillation in comparison with NOAC, which should be taken into account when implementing individualized pharmacotherapy of patients. According to the analysis of consumption volumes, it can be assumed that in Ukraine there is a large number of patients with AF who do not receive anticoagulant therapy.


2012 ◽  
Vol 153 (19) ◽  
pp. 732-736
Author(s):  
Gergely Hofgárt ◽  
Csilla Vér ◽  
László Csiba

Atrial fibrillation is a risk factor for ischemic stroke. To prevent stroke oral anticoagulants can be administered. Old and new types of anticoagulants are available. Nowadays, old type, acenocumarol based anticoagulants are used preferentially in Hungary. Aim: The advantages and the disadvantages of anticoagulants are well known, but anticoagulants are underused in many cases. Method: The authors retrospectively examined how frequent atrial fibrillation was and whether the usage of anticoagulants in practice was in accordance with current guidelines among acute stroke cases admitted to the Department of Neurology, Medical and Health Science Centre of Debrecen University in 2009. Results: Of the 461 acute stroke cases, 96 patients had known and 22 patients had newly discovered atrial fibrillation. Half of the patients did not receive proper anticoagulation. Only 8.4% of them had their INR levels within the therapeutic range. Conclusions: The findings are similar to those reported in other studies. Many factors may contribute to the high proportion of improper use of anticoagulants, and further investigations are needed to determine these factors. In any case, elimination of these factors leading to a failure of anticoagulation may decrease the incidence of stroke. Orv. Hetil., 2012, 153, 732–736.


2021 ◽  
Vol 12 ◽  
pp. 215013272110002
Author(s):  
William Uribe-Arango ◽  
Juan Manuel Reyes Sánchez ◽  
Natalia Castaño Gamboa

Objectives To assess budget impact of the implementation of an anticoagulation clinic (AC) compared to usual care (UC), in patients with non-valvular atrial fibrillation (NVAF). Method A decision tree was designed to analyze the cost and events rates over a 1-year horizon. The patients were distributed according to treatment, 30% Direct Oral Anticoagulant (DOAC) regimens and the rest to warfarin. The thromboembolism and bleeding were derived from observational studies which demonstrated that ACs had important impact in reducing the frequency of these events compared with UC, due to higher adherence with DOACs and proportion of time in therapeutic range (TTR) with warfarin. Costs were derived from the transactional platform of Colombian government, healthcare authority reimbursement and published studies. The values were expressed in American dollars (USD). The exchanged rate used was COP $3.693 per dollar. Results During 1 year of follow-up, in a cohort of 228 patients there were estimated 48 bleedings, 6 thromboembolisms in AC group versus 84 bleedings, and 12 thromboembolisms events in patients receiving UC. Total costs related to AC were $126 522 compared with $141 514 in UC. The AC had an important reduction in the cost of clinical events versus UC ($52 085 vs $110 749) despite a higher cost of care facilities ($74 436 vs $30 765). A sensibility analysis suggested that in the 83% of estimations, the AC produced savings varied between $27 078 and $135 391. Conclusions This study demonstrated that AC compared with UC, produced an important savings in the oral anticoagulation therapy for patients with NVAF.


Author(s):  
В. И. Потиевская ◽  
А. А. Ахобеков ◽  
М. Ф. Баллюзек

Рассматривается современное состояние вопроса выбора антикоагулянтной терапии при фибрилляции предсердий (ФП) у онкологических больных. Отмечается, что сложность выбора антикоагулянта при злокачественных новообразованиях (ЗНО) определяется такими факторами, как коморбидные сердечно-сосудистые заболевания, нарушения функции печени и почек, метаболические дисфункции, свойственные, прежде всего, пациентам старшей возрастной группы. Приводятся актуальные данные по оценке риска геморрагических и тромбоэмболических осложнений ФП при ЗНО в аспекте возраста. Обсуждаются возможные причины увеличения риска развития ФП во время и после лечения ЗНО, в том числе и в связи с возраст-ассоциированностью этих патологий. Рассмотрены вопросы выбора антикоагулянтов у пациентов, находящихся на активной противоопухолевой терапии, особенно на препаратах из группы прямых оральных антикоагулянтов (ПОАК). Согласно данным обсервационных исследований, именно ПОАК являются перспективным, относительно безопасным и эффективным выбором для онкологических пациентов с ФП, в связи с чем их применение должно активно изучаться в рандомизированных клинических исследованиях с учетом фактора возраста. Подчеркивается, что подбор схемы антикоагулянтной терапии у пациентов с ФП и ЗНО требует междисциплинарного участия кардиологов и онкологов, а часто и гериатров, чтобы индивидуализировать лечение и предложить наиболее эффективную терапию. The current issue of the choice of anticoagulant therapy of atrial fibrillation (AF) in cancer patients is considered. It is noted that the difficulty of choosing an anticoagulant in malignancies is largely determined by age-related factors, such as comorbid cardiovascular diseases, liver and kidney dysfunction, metabolic disorders common for in elderly patients. Current data on the risk assessment of hemorrhagic and thromboembolic complications of AF in cancer patients in the aspect of age presented. During and after cancer treatment, the risk of developing AF can increase, also in connection with the age-associated pathology. Possible reasons of it are discussed. The choice of different anticoagulants groups in patients treated with anticancer therapy, including direct oral anticoagulants (DOAC) is considered. According to available data from observational studies, it is the DOAC that is a promising, relatively safe and effective choice for cancer patients with AF, and therefore their use should be actively studied in randomized trials, considering the factor of age. It is particularly noted that solving this problem requires the interdisciplinary involvement of cardiologists, oncologists, and sometimes, geriatrics, to individualize treatment for each case and to offer the most effective therapy.


Author(s):  
Kristaps Jurjāns ◽  
Santa Sabeļnikova ◽  
Evija Miglāne ◽  
Baiba Luriņa ◽  
Oskars Kalējs ◽  
...  

Abstract Atrial fibrillation is one of major risk factors of cerebral infarction. The use of oral anticoagulants is the only evidence-based method of reducing the risk of cardioembolic accidents. The guidelines of oral anticoagulant admission and usage have been available since 2012. The results of this study show that of 550 stroke patients that were admitted to Pauls Stradiņš Clinical University Hospital, Rīga, Latvia, from 1 January 2014 until 1 July 2014, atrial fibrillation was diagnosed in 247 (45%) cases, and of these patients, only 8.5% used oral anticoagulants before the onset of stroke. Six months after discharge of 111 (44.9%) stroke survivors, five (4.5%) used no secondary prevention medication, 27 (24.3%) used antiplatelet agents, 54 (48.6%) warfarin, and 25 (22.5%) used target specific oral anticoagulants (TSOACs). The mortality rate was significantly higher in the patient group that used no secondary prevention medication or antiplatelet agents compared to the patient group that used oral anticoagulants. The use of oral anticoagulants for primary stroke prevention in Latvia is insufficient. The mortality of cardioembolic stroke in 180 days is very high - 40.4%. Secondary prevention is essential to prevent recurrent cardioembolic accidents.


Kardiologiia ◽  
2021 ◽  
Vol 61 (10) ◽  
pp. 81-88
Author(s):  
T. N. Novikova

This review focuses on issues of anticoagulant therapy in patients with atrial fibrillation (AF) associated with chronic kidney disease (CKD). Such patients are at high risk of stroke whereas the choice of an anticoagulant is difficult. A wealth of information about a negative effect of warfarin on the kidney function has accumulated. A need for an alternative therapy to warfarin for patients with stage 3-4 CKD has become imminent. In this regard, rivaroxaban seems to be an appropriate replacement for warfarin in such patients. In randomized, controlled studies that evaluated the efficacy of direct oral anticoagulants in comparison with warfarin, the efficacy and safety profile of a “kidney” dose in moderate disorders of kidney function has been studied only for rivaroxaban. Moreover, both randomized, controlled studies and studies performed in the conditions of clinical practice, have demonstrated a more favorable effect of rivaroxaban on kidney function compared to warfarin. Patients with AF associated with CKD require a comprehensive protection, which, according to results of clinical studies, may be provided by rivaroxaban. 


2020 ◽  
pp. 19-25
Author(s):  
M. G. Nazarkina ◽  
V. V. Stolyarova ◽  
D. A. Karpova

Introduction. Cardiovascular diseases are the leading cause of morbidity and mortality worldwide, with heart rhythm disorders accounting for a significant proportion of them. Atrial fibrillation (AF) is an arrhythmia that poses a risk of thromboembolic complications and is difficult to treat with ongoing preventive anticoagulant therapy. Aim of the study. To analyze the prescription of anticoagulant therapy to patients with AF on the regional level. Methods and results. The study included 72 patients with the nonvalvular form of AF (from 41 to 82 years old) of the Department of Rhythm and Conductivity Abnormalities of the State Budgetary Institution of the Republic of Mordovia RCH № 4 for 2019. Three groups were singled out depending on the AF form: the first one – patients with the constant form (n = 22), the second one (n = 24) – with the persistent form, the third one (n = 24) – with the paroxysmal form. The risk of thromboembolic complications was assessed using the CHA2DS2-VASc scale and hemorrhagic complications using the HAS-BLED scale. All patients had a high risk of thromboembolism (index above 2 points), which reflects multiple risk factors and indicates the need for oral anticoagulants (OAC). According to HAS-BLED scale calculations, the risk of haemorrhagic complications was low in most patients (2 or less points) – there was no significant increase in the risk of bleeding, but careful monitoring is required. Analysis of the results revealed that only 54% of patients took OAC, despite the fact that all patients were shown anticoagulant therapy. When analyzing the cases of patients who did not take anticoagulants, it was found that 23% of patients, despite the doctor’s recommendations, refused to take the drugs, 47% of patients justified the inability to control IHR and 30% were unable to purchase expensive new OAC. Conclusion. Despite the recommendations for the management of patients with atrial fibrillation, only 54% were prescribed oral anticoagulants.


ABOUTOPEN ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 154-157
Author(s):  
Roberto Spoladore

Trans-catheter ablation of atrial fibrillation (AF) is a common treatment for symptomatic AF. Among the major complications of AF ablation are stroke, transient ischemic attacks and peri-procedural cardiac tamponade. Various clinical trials have shown that uninterrupted treatment with vitamin K antagonists (VKA) is associated with a lower incidence of embolic events compared to discontinuation of therapy; until recently, in the absence of equally solid evidence, this practice was not extended to the new oral anticoagulants (NOAC) not VKA due to the fear of hemorrhagic complications potentially associated with the use of an "irreversible" anticoagulant. The case of a patient suffering from numerous comorbidities is reported here. In light of the poor response to anti-arrhythmics, a TC-RF ablation was performed, with suspension of dabigatran administration only on the day of the procedure (for a total period <24 hours). Although the fear of the risk of bleeding potentially associated with the trans-catheter ablation procedure may still induce clinicians to stop anticoagulant therapy, even the decision to discontinue anticoagulant therapy with dabigatran on the day of surgery alone is challenged by recent evidence in the literature supporting the efficacy of dabigatran in reducing the incidence of hemorrhagic events during and after ablation, including the results of the RE-CIRCUIT study (Cardiology)


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