scholarly journals Atrial Fibrillation and Coronary Artery Disease: A Long-Term Perspective on the Need for Combined Antithrombotic Therapy

Author(s):  
Alexander C. Fanaroff ◽  
Shuang Li ◽  
Guillaume Marquis-Gravel ◽  
Jay Giri ◽  
Renato D. Lopes ◽  
...  

Background: Older adults with atrial fibrillation (AF) are often treated with the shortest possible duration of antiplatelet/anticoagulant therapy after myocardial infarction (MI) or percutaneous coronary intervention (PCI) due to concern for bleeding. However, the risk of recurrent MI or PCI prompting antiplatelet therapy extension is unknown in this population. Methods: Using the National Cardiovascular Data Registry linked to Medicare claims, we described the cumulative incidence of recurrent MI or PCI over a median of 7-year follow-up for patients ≥65 years old with AF discharged alive after acute MI between 2008 and 2017. We used pharmacy fill data to describe the proportion of patients filling prescriptions for both oral anticoagulants and P2Y 12 inhibitors for ≥50% of the indicated duration after MI or PCI. Results: Of 187 622 older patients discharged alive after MI, 50 539 (26.9%) had AF. Over a median of 7-year follow-up in patients with AF, the cumulative incidence was 14.5% for recurrent MI, 12.1% for PCI, 7.9% for stroke, and 9.5% for bleeding hospitalization. Among 7998 patients with AF and recurrent MI or PCI, 1668 (20.9%) had >1 MI or PCI during follow-up. Assuming each MI or PCI should be followed by 6 months of P2Y 12 inhibitor therapy, patients with AF who had a recurrent MI/PCI had a median estimated indication for antiplatelet/anticoagulant treatment of 287 days (194, 358), but filled both P2Y 12 inhibitor and oral anticoagulant for a median of 0 days (0, 21). In this cohort, 12.2% of patients filled prescriptions for both a P2Y 12 inhibitor and oral anticoagulant for ≥50% of the indicated duration. Conclusions: Older adults with AF and MI have high incidences of downstream recurrent MI or PCI requiring extended antiplatelet/anticoagulant therapy durations, yet many appear to be under-treated. These results highlight the need for better thrombosis prevention strategies in this group of patients.

2020 ◽  
Vol 9 (22) ◽  
Author(s):  
Sergio Raposeiras Roubín ◽  
Emad Abu Assi ◽  
Cristina Barreiro Pardal ◽  
María Cespón Fernandez ◽  
Isabel Muñoz Pousa ◽  
...  

Background Bleeding is frequent in patients with atrial fibrillation (AF) treated with oral anticoagulant therapy, and may be the first manifestation of underlying cancer. We sought to investigate to what extent bleeding represents the unmasking of an occult cancer in patients with AF treated with oral anticoagulants. Methods and Results Using data from CardioCHUVI‐AF (Retrospective Observational Registry of Patients With Atrial Fibrillation From Vigo's Health Area), 8753 patients with AF aged ≥75 years with a diagnosis of AF between 2014 and 2017 were analyzed. Of them, 2171 (24.8%) experienced any clinically relevant bleeding, and 479 (5.5%) were diagnosed with cancer during a follow‐up of 3 years. Among 2171 patients who experienced bleeding, 198 (9.1%) were subsequently diagnosed with cancer. Patients with bleeding have a 3‐fold higher hazard of being subsequently diagnosed with new cancer compared with those without bleeding (4.7 versus 1.4 per 100 patient‐years; adjusted hazard ratio [HR], 3.2 [95% CI, 2.6–3.9]). Gastrointestinal bleeding was associated with a 13‐fold higher hazard of new gastrointestinal cancer diagnosis (HR, 13.4; 95% CI, 9.1–19.8); genitourinary bleeding was associated with an 18‐fold higher hazard of new genitourinary cancer diagnosis (HR, 18.1; 95% CI, 12.5–26.2); and bronchopulmonary bleeding was associated with a 15‐fold higher hazard of new bronchopulmonary cancer diagnosis (HR, 15.8; 95% CI, 6.0–41.3). For other bleeding (nongastrointestinal, nongenitourinary, nonbronchopulmonary), the HR for cancer was 2.3 (95% CI, 1.5–3.6). Conclusions In patients with AF treated with oral anticoagulant therapy, any gastrointestinal, genitourinary, or bronchopulmonary bleeding was associated with higher rates of new cancer diagnosis. These bleeding events should prompt investigation for cancers at those sites.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
H Ogawa ◽  
Y An ◽  
S Ikeda ◽  
Y Aono ◽  
K Doi ◽  
...  

Abstract Background Patients with atrial fibrillation (AF) commonly coexist with chronic kidney disease (CKD). Non-vitamin K antagonist oral anticoagulants (NOAC) are recommended for stroke prevention in patients with non-valvular atrial fibrillation (AF), and worsening renal function (WRF) as well as CKD is an important issue in using NOAC. However, little is known about the clinical outcomes of patients after WRF. Purpose We aimed to investigate outcomes after WRF in AF patients. Methods The Fushimi AF Registry is a community-based prospective survey of the AF patients in our city. Follow-up data including prescription status were available for 4,441 patients. Of them, 1,890 patients who have baseline and at least 1 follow-up creatinine clearance (CrCl) measurements, estimated by the Cockcroft-Gault formula, were analyzed in the present study. WRF was defined as a decrease of ≥20% from baseline CrCl measurement at any time point during follow-up. We evaluated demographics and outcomes after WRF in AF patients. Results During the median follow-up period of 2,194 days, mean CrCl decrease of 2.2 ml/min/year was observed and WRF occurred in 981 patients (51.9%). Patients with WRF were significantly more often female (with vs. without WRF; 40.3% vs. 35.4%; p=0.03), older (73.4 vs. 71.1 years of age; p<0.01), more often paroxysmal type (49.9% vs. 47.1%; p<0.01), and more likely to have prior stroke (17.9% vs. 12.7%; p<0.01), heart failure (30.8% vs. 24.8%; p<0.01), diabetes (31.7% vs. 27.1%; p=0.03), and coronary artery disease (19.9% vs. 12.1%; p<0.01) than those without WRF. Co-existing of CKD and mean CrCl at baseline were comparable (37.4% vs. 36.9%; p=0.82, 65.3 vs. 63.5 ml/min; p=0.66, respectively). Mean CHA2DS2-VASc score was significantly higher in WRF patients (3.55 vs. 3.03; p<0.01). On landmark analysis, all-cause mortality occurred in 135 patients (8.6 /100 person-years) after WRF and 82 patients (1.7 /100 person-years) without WRF, with an adjusted hazard ratio (HR) of 6.33 (95% confidence interval [CI], 4.33–9.50; p<0.01), adjusted by sex, age, body weight, serum creatinine, type of AF, oral anticoagulant prescription and comorbidities. Stroke or systemic embolism occurred in 45 patients after WRF (3.0 /100 person-years) and 78 (1.7 /100 person-years) patients without WRF (adjusted HR 1.60 [95% CI, 1.04–2.49; p=0.03]) (Figure). Conclusions AF patients after WRF had higher incidence of various adverse events. Incidence of Adverse Outcomes Funding Acknowledgement Type of funding source: Other. Main funding source(s): The Practical Research Project for Life-Style related Diseases including Cardiovascular Diseases and Diabetes Mellitus from Japan Agency for Medical Research and Development. Boehringer Ingelheim, Bayer Healthcare, Pfizer, Bristol-Myers Squibb, Astellas Pharma, AstraZeneca, Daiichi-Sankyo, Novartis Pharma, MSD, Sanofi-Aventis, and Takeda Pharmaceutical.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
J J Komen ◽  
P Hjemdahl ◽  
A K Mantel - Teeuwisse ◽  
O H Klungel ◽  
B Wettermark ◽  
...  

Abstract Background Anticoagulation treatment reduces the risk of stroke but increases the risk of bleeding in atrial fibrillation (AF) patients. Antidepressants use is associated with increased risk for stroke and bleeds. Objective To assess the association between antidepressant use in AF patients with oral anticoagulants and bleeding and stroke risk. Methods All AF patients newly prescribed with an oral anticoagulant in the Stockholm Healthcare database (n=2.3 million inhabitants) from July 2011 until 2016 were included and followed for one year or shorter if they stopped claiming oral anticoagulant treatment or had an outcome of interest. Outcomes were severe bleeds and strokes, requiring acute hospital care. During follow-up, patients were considered exposed to antidepressant after claiming a prescription for the duration of the prescription. With a time-varying Cox regression, we assessed the association between antidepressant use and strokes and bleeds, adjusting for confounders (i.e., age, sex, comorbidities, comedication, and year of inclusion). In addition, we performed a propensity score matched analysis to test the robustness of our findings. Results Of the 30,595 patients included after claiming a prescription for a NOAC (n=13,506) or warfarin (n=17,089), 4 303 claimed a prescription for an antidepressant during follow-up. A total of 712 severe bleeds and 551 strokes were recorded in the cohort. Concomitant oral anticoagulant and antidepressant use was associated with increased rates of severe bleeds (4.7 vs 2.7 per 100 person-years) compared to oral anticoagulant treatment without antidepressant use (aHR 1.42, 95% CI: 1.12–1.80), but not significantly associated with increased stroke rates (3.5 vs 2.1 per 100 person-years, aHR 1.23, 95% CI: 0.93–1.62). No significant differences were observed between different oral anticoagulant classes (i.e., warfarin or NOAC) or different antidepressant classes (i.e., SSRI, TCA, or other antidepressant). Additional propensity-score matched analyses yielded similar results but showed a significantly increased risk for stroke (HR: 1.47, 95% CI: 1.08–2.02). Incidence rates of strokes and bleeds Conclusion Concomitant use of an oral anticoagulant and an antidepressant, irrespective of type, is associated with an increased bleeding risk. Increased awareness and a critical consideration for the need of an antidepressant is recommended in this population. Acknowledgement/Funding Swedish Heart Lung Foundation


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Fujino ◽  
H Yuzawa ◽  
T Kinoshita ◽  
M Shinohara ◽  
H Koike ◽  
...  

Abstract Background Oral anticoagulant therapy (OAT) is effective for preventing strokes in atrial fibrillation (AF) patients. Currently, there is controversy regarding the discontinuation of OATs in patients with ablation procedures to eliminate AF. Aim We investigated the incidence of major bleeding and ischemic strokes/systemic embolisms in low-risk patients that discontinued OATs after successful AF ablation procedures. Methods Of 330 consecutive patients that underwent AF ablation procedures and were prescribed one of the direct oral anticoagulants or warfarin, 207 AF patients (158 men, mean age 61±11 years) who discontinued OATs three months after the procedure were enrolled. The average CHADS2 and HAS-BLED scores were 1.0±0.9 and 1.2±1.0, respectively, which meant that most patients had a low risk for strokes. Results During follow-up, 31 patients (15%) had recurrences of AF. Those patients underwent a re-ablation procedure and then re-discontinued their OATs three months after the session. During a 60±13 months follow-up, major bleeding was observed in five patients (2.4%) and was associated with a higher HAS-BLED score (2.2±0.4 vs. 1.1±1.0, P=0.027). In contrast, none of the patients experienced ischemic strokes/systemic embolisms. Conclusions This prospective study demonstrated that in patients with successful ablation procedures and low risk scores for AF management, OATs could be discontinued three months after the procedure. Unnecessary continuation of OATs may increase the incidence of major bleeding during the follow-up.


2020 ◽  
Vol 19 (3) ◽  
pp. 2488
Author(s):  
V. K. Kurashin ◽  
N. Yu. Borovkova ◽  
N. N. Borovkov ◽  
V. A. Kurashina ◽  
T. E. Bakka

Aim. To assess clinical and pathogenetic characteristics of patients with atrial fibrillation (AF) hospitalized in cardiology department of the regional clinical hospital, and to clarify the related management strategy.Material and methods. A total of 1164 patients were hospitalized in cardiology department of N.A. Semashko Nizhny Novgorod Regional Clinical Hospital in 2017, of which 331 (28,4%) had AF. These patients were included in the study. We analyzed history data of all patients, standard diagnostic tests were carried out. The CHA2DS2-VASc score was used to determine the risk of thromboembolic events, and the HASBLED score — to determine the bleeding risk.Results. The average age of patients was 63,2±10,0 years. In all patients, AF was diagnosed before admission to the hospital. All patients were hospitalized according to hospital waiting lists due to underlying diseases. The most common diseases were coronary artery disease, mainly in combination with hypertension, inflammatory and dystrophic myocardial disorders. Twenty-four patients were hospitalized due to heart failure progression. Nonvalvular AF prevailed among patients. Most patients had a permanent AF (58,3%), the second place took pa - roxysmal AF (36,8%). Much less frequently (4,9%), a persistent AF was observed. Stratification of risk factors for stroke, systemic thromboembolism, as well as for bleeding when indicated for anticoagulant therapy was carried out. Based on the results, oral anticoagulants were indicated for 260 (78,8%) of participants, while only 38,8% received them before hospitalization.Conclusion. Among patients hospitalized in the cardiology department, 28,4% had AF. The most common was nonvalvular AF, associated mainly with coronary artery disease, essential hypertension and their combination. Anticoagulant therapy was indicated for 78,8% of patients, while only 38,8% received it before. This requires further optimization of management of AF patients.


Author(s):  
Mikhail S. Dzeshka ◽  
Richard A. Brown ◽  
Gregory Y. H. Lip

Despite major advances in treatment and risk stratification, cardiovascular disease remains highly prevalent in modern society. Activation and progression of pathways involved in adverse myocardial and vascular remodelling occur in an age-dependent manner. Indeed, epidemiological studies have consistently shown age to be independently associated with increased lifetime cardiovascular risk, particularly with regard to coronary artery disease and its complications. Structural remodelling in the ageing heart, particularly the left atrium, creates a morphological substrate for the development of atrial fibrillation, the most common sustained arrhythmia and notably more prevalent in older patients. Concomitant atrial fibrillation and coronary artery disease commonly occur in everyday clinical practice. Both conditions are associated with thrombotic complications, e.g. coronary thrombosis in acute coronary syndrome or after stent implantation, while atrial fibrillation confers increased risk of stroke. Antithrombotic therapy is of the highest priority therefore, but with consideration of different thrombotic pathways.


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