P2770Clinical characteristics and outcomes of venous thromboembolism according to patients with versus without atrial fibrillation: from the COMMAND VTE Registry

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Oi ◽  
Y Yamashita ◽  
T Morimoto ◽  
H Amano ◽  
T Takase ◽  
...  

Abstract Background/Introduction Oral anticoagulants are widely used for the treatment and second prevention of venous thromboembolism (VTE) and stroke prevention in atrial fibrillation (AF). VTE and AF are common diseases and these sometimes might coexist. However, there are few reports about the relationship between VTE and AF. Purpose We sought to evaluate the clinical characteristics and outcomes in VTE patients with AF. Methods The COMMAND VTE Registry is a multicenter registry enrolling consecutive 3027 patients with acute symptomatic VTE objectively confirmed by imaging examination or by autopsy among 29 centers in Japan between January 2010 and August 2014. The current study population consisted of 129 patients with AF (AF group) and 2898 patients without AF (non-AF group). We compared the clinical characteristics, management strategies and long-term outcomes between the 2 groups. Results The AF group was older (mean age: 75.3 vs. 66.8 years, P<0.001), and more often had co-morbidities such as hypertension (54.3% vs. 37.7%, P<0.001), diabetes mellitus (20.2% vs. 12.4%, P=0.01), chronic kidney disease (28.7% vs. 18.5%, P=0.004), heart failure (28.7% vs. 18.5%, P=0.004), history of stroke (20.2% vs. 8.4%, P<0.001), and history of major bleeding (12.4% vs. 7.4%, P=0.04) compared with the non-AF group, whereas there were no significant differences in the proportions of active cancer at diagnosis (18.6% vs. 23.2%, P=0.23) and pulmonary embolism at presentation (64.3% vs. 56.3%, P=0.07). The proportion of anticoagulation therapy beyond acute phase was not significantly different (94% vs. 93%, P=0.60), while the cumulative discontinuation rates of anticoagulation therapy was significantly lower in the AF group (26.9% vs. 43.4% at 3 years, Log-rank P=0.03). The cumulative 5-year incidences of recurrent VTE and major bleeding were not significantly different (Recurrent VTE: 7.6% vs. 10.6%, Log-rank P=0.89; Major bleeding: 18.6% vs. 11.8%, Log-rank P=0.07). After adjusting for potential confounders, the risks of the AF group relative to the non-AF group for recurrent VTE and major bleeding remained insignificant (HR 1.19, 95% CI 0.54–2.28, P=0.64; HR 1.28, 95% CI 0.73–2.06, P=0.37). The cumulative 5-year incidence of all-cause death was significantly higher in the AF-group (49.1% vs. 28.6%, Log-rank P<0.001). After adjusting for potential confounders, the risks of the AF group relative to the non-AF group for all-cause death remained significant (HR 1.63, 95% CI 1.23–2.15, P<0.001). The proportion of deaths due to cancer was lower in the AF group (30% vs. 55%, P<0.001), while the proportion of cardiac deaths was higher in the AF group (16.1% vs. 4.0%, P<0.001). The outcomes of VTE patients with AF Conclusions The risks for recurrent VTE between patients with AF and those without AF were not significantly different, although patients with AF received longer-term anticoagulation therapy, whereas the risks for major bleeding tended to be higher in patients with AF. Acknowledgement/Funding Research Institute for Production Development, Mitsubishi Tanabe Pharma Corporation

2021 ◽  
Vol 10 (13) ◽  
pp. 2924
Author(s):  
Domenico Acanfora ◽  
Marco Matteo Ciccone ◽  
Valentina Carlomagno ◽  
Pietro Scicchitano ◽  
Chiara Acanfora ◽  
...  

Diabetes mellitus (DM) represents an independent risk factor for chronic AF and is associated with unfavorable outcomes. We aimed to evaluate the efficacy and safety of direct oral anticoagulants (DOACs) in patients with atrial fibrillation (AF), with and without diabetes mellitus (DM), using a new risk index (RI) defined as: RI =Rate of EventsRate of Patients at Risk. In particular, an RI lower than 1 suggests a favorable treatment effect. We searched MEDLINE, MEDLINE In-Process, EMBASE, PubMed, and the Cochrane Central Register of Controlled Trials. The risk index (RI) was calculated in terms of efficacy (rate of stroke/systemic embolism (stroke SEE)/rate of patients with and without DM; rate of cardiovascular death/rate of patients with and without DM) and safety (rate of major bleeding/rate of patients with and without DM) outcomes. AF patients with DM (n = 22,057) and 49,596 without DM were considered from pivotal trials. DM doubles the risk index for stroke/SEE, major bleeding (MB), and cardiovascular (CV) death. The RI for stroke/SEE, MB, and CV death was comparable in patients treated with warfarin or DOACs. The lowest RI was in DM patients treated with Rivaroxaban (stroke/SEE, RI = 0.08; CV death, RI = 0.13). The RIs for bleeding were higher in DM patients treated with Dabigatran (RI110 = 0.32; RI150 = 0.40). Our study is the first to use RI to homogenize the efficacy and safety data reported in the DOACs pivotal studies against warfarin in patients with and without DM. Anticoagulation therapy is effective and safe in DM patients. DOACs appear to have a better efficacy and safety profile than warfarin. The use of DOACs is a reasonable alternative to vitamin-K antagonists in AF patients with DM. The RI can be a reasonable tool to help clinicians choose between DOACs or warfarin in the peculiar set of AF patients with DM.


2021 ◽  
Vol 6 (14) ◽  
pp. 56-67
Author(s):  
Arslan Say ◽  
Abdülkadir ÇAKMAK ◽  
Gökhan KESKİN ◽  
Erdinç PELİT ◽  
Yılmaz ÖZBAY

Aim: New generation anticoagulants rapidly find a wider area of use in the clinic due to the use problems of other oral anticoagulants. Anticoagulants such as Dabigatran, Rivaroxaban, and Apixaban with safer treatment intervals have been accepted in clinical practice guidelines and have taken their place as preferred drugs. In this study, we aimed to retrospectively examine the effects of three new-generation anticoagulant drugs on a group of patients. Material and Methods: In this retrospectively planned study, patients diagnosed with atrial fibrillation (n = 522) were divided into three groups according to the drugs used for treatment (Dabigatran, Rivaroxaban, and Apixaban). Routine blood values of the patients in each group were retrospectively scanned according to age, gender, time of drug initiation and presence of chronic disease. Results: According to the results obtained, it was found that the mean HCT, BUN, AST, ALT, MPV, Iron, and Ferritin were higher in patients using Apixaban than those using Dabigatran and Rivaroxaban drugs, but the age, average values of Hgb1 Hgb2, Hgb1, PLT, CrCl, Gfr and INR of the patients using Apixaban lower than those using Dabigatran and Rivaroxaban. The highest rate (22.5%) was found in the group of patients taking apixaban (n=93) when people taking the drugs were examined in terms of mortality. Conclusion: It has been observed that Rivaroxaban can be used more safely in patients with a history of acute cancer and thrombosis, patients with recurrent venous thromboembolism, and patients with high frailty, three drugs should be preferred instead of oral anticoagulants.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Sunil Upadhaya ◽  
Seetharamprasad Madala ◽  
Sunil Badami

Introduction: Patients with cancer are at high risk for recurrent thromboembolic phenomenon. Use of novel oral anticoagulants (NOAC) for treatment of venous thromboembolism (VTE) in such patients is controversial. We conducted this updated meta-analysis to evaluate the pooled efficacy and safety of NOAC in patients with cancer. Methods: We did systematic search of PubMed and Cochrane library databases for randomized controlled trials comparing NOAC with low molecular weight heparin (LMWH) for VTE treatment in cancer patients till April 2020. The efficacy outcomes were recurrent VTE and all-cause mortality rates, and the primary safety outcome was incidence of major bleeding rate. Results: Four randomized controlled studies comparing NOAC with LMWH (1446 patients in NOAC group and 1448 patients in LMWH group) were included in our study. Use of NOAC lead to significant reduction in recurrent VTE rate (odds ratio (OR): 0.55 [0.36-0.84], I 2 = 45 %, p value = 0.006) (Figure 1). However, we did not find any significant difference in rate of major bleeding (OR: 1.30 [0.76-2.23], I 2 = 35%, p value = 0.34) (Figure 2) and all-cause mortality (OR: 1 [0.80 - 1.26], I 2 = 33%, p value = 0.98). Conclusions: This updated meta-analysis showed comparatively lower pooled recurrent VTE rate in patient being treated with NOAC, whereas similar rates of major bleeding and all-cause death. NOAC are more efficacious and has similar safety profile compared with LMWH.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
R E Harskamp ◽  
W A M Lucassen ◽  
R D Lopes ◽  
H C Van Weert

Abstract Background Hypertension is common in patients with atrial fibrillation (AF) and carries an additional risk for complications, most notably stroke and bleeding. We assessed the history of hypertension, level of blood pressure control, and an interaction with the choice of oral anticoagulants on clinical outcomes. Purpose To gain insights into the risks of hypertension in the setting of AF and explore possible interactions with the safety and efficacy of non-vitamin K oral anticoagulants (NOACs) versus vitamin K antagonists (VKAs). Methods We performed a systematic review and meta-analysis of studies that randomised patients to NOACs or VKAs and reported outcomes stratified by presence of hypertension. Collected outcomes included: ischaemic stroke or systemic embolism (SE), death from any cause, hemorrhagic stroke, major bleeding, and intracranial hemorrhage. Log adjusted hazard ratios (HR) and corresponding standard error were calculated, and HRs were compared using Mantel-Haenszel random effects. Quality of the evidence was assessed with Cochrane risk of bias tool. Results Five high-quality studies were eligible, including 71,602 participants who received NOACs (apixaban, dabigatran, edoxaban, rivaroxaban) or VKAs, with median follow-up of 1.8–2.8 years. 89.2% of participants had a history of hypertension. Compared with patients without hypertension, those with controlled and uncontrolled hypertension had higher risk for stroke/SE (HR: 1.21 [1.04–1.41] and HR: 1.50 [1.12–2.01], respectively) and haemorrhagic stroke (HR: 1.78 [1.06, 3.00] and HR: 1.66 [0.99–4.01], respectively). On a continuous scale, the risk of stroke increased 7% per 10mmHg increase in systolic blood pressure. As shown in the Table, no interactions were found between hypertension status and the efficacy or safety of NOACs versus VKAs. Table 1. Interaction of presence of hypertension on the comparative efficacy and safety of NOAC versus VKA Hypertension (n=63,869) No hypertension (n=7,733) P-value (int) Adjusted HR, 95% CI Adjusted HR, 95% CI Stroke or systemic embolism 080, 0.72–0.89 0.79, 0.53–1.19 0.98 Haemorrhagic stroke 0.55, 0.41–0.74 0.24, 0.04–1.37 0.36 Death from any cause 0.91, 0.84–0.98 0.89, 0.76–1.04 0.82 Major bleeding 0.90, 0.76–1.07 0.84, 0.69–1.01 0.57 Intracranial haemorrhage 0.41, 0.24-.068 0.48, 0.14–1.69 0.81 Major or clinically relevant non-major bleed 0.90, 0.68–1.18 0.91, 0.55–1.53 0.96 Conclusions Adequate blood pressure management is vital to optimally reduce the risk of stroke in patients with atrial fibrillation. The benefits of NOACs over VKAs, also apply to patients with elevated blood pressure.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
I Cavallari ◽  
G Verolino ◽  
G Patti

Abstract Background Anticoagulation in patients with cancer and atrial fibrillation (AF) is particularly challenging given the higher risk of both thrombotic and bleeding complications in this setting. Data regarding the efficacy and safety of non-vitamin K oral anticoagulants (NOACs) in AF patients with malignancy remain unclear. Purpose In the present meta-analysis we further investigate the efficacy and safety of NOACs compared to warfarin in patients with AF and cancer assuming that available studies may be individually underpowered for endpoints at low incidence, i.e. stroke, major and intracranial bleeding. Methods We performed a systematic review and meta-analysis of studies comparing the use of NOACs vs. warfarin in AF patients with cancer. Efficacy outcome measures included stroke or systemic embolism, venous thromboembolism and mortality. Safety outcome measures were major bleeding and intracranial hemorrhage. Results We pooled data from 6 identified studies enrolling a total of 31,756 AF patients with cancer. Mean follow-up was 1.7 years. Patients with cancer had significantly increased annualized rates of venous thromboembolism (1.38% vs. 0.74%), major bleeding (9.01% vs. 5.13%), in particular major gastrointestinal bleeding (2.38% vs. 1.60%), and all-cause mortality (17.73% vs. 8.50%) vs. those without (all P values <0.001), whereas the incidence of stroke or systemic embolism and intracranial hemorrhage did not differ. Compared with warfarin, treatment with NOACs nominally decreased the risk of stroke or systemic embolism (5.41% vs. 2.70%; odds ratio, OR; 95% confidence intervals, CI 0.51, 0.26–1.01; P=0.05; Figure), mainly of ischemic stroke (OR 0.56; 95% CI 0.35–0.89; P=0.01), and the risk of venous thromboembolism (OR 0.51; 95% CI 0.42–0.61; P<0.001). In cancer patients receiving NOACs there was a significant reduction of major bleeding (3.95% vs. 4.66%; OR 0.66, 95% CI 0.46–0.94; P=0.02; Figure) and intracranial hemorrhage (0.26% vs. 0.66%; OR 0.25, 95% CI 0.08–0.82; P=0.02) vs. warfarin, with no difference in gastrointestinal major bleeding rates. Conclusion AF patients on oral anticoagulation and concomitant cancer are at higher risk of venous thromboembolism, major bleeding and all-cause mortality. NOACs may represent a safer and more effective alternative to warfarin also in this setting of patients.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. LBA-2-LBA-2 ◽  
Author(s):  
Harry Roger Buller

Abstract Abstract LBA-2 Background: In a large proportion of patients that have completed 6 to 12 months of treatment with a vitamin K antagonist (VKA) for their acute episode of venous thromboembolism (VTE) the question arises whether to stop or continue this treatment. Continuation implies the need for regular laboratory control and subsequent dose adjustments. Furthermore, the risk of bleeding persists. New oral anticoagulants hold the promise of simple fixed-dose regimens without the need for monitoring and could make continuation of therapy more attractive. The Einstein-Extension study was therefore designed to assess the relative efficacy and safety of rivaroxaban, a direct oral factor Xa inhibitor, versus placebo in patients who had completed 6 to 12 months of anticoagulant treatment for their acute episode of VTE. Patients in whom there was a clear indication for continued anticoagulant treatment were not eligible. Study Design: This randomized, double-blind, placebo-controlled, superiority study evaluated therapy with rivaroxaban 20 mg once-daily for an additional 6 or 12 months. The primary efficacy outcome was symptomatic recurrent VTE (i.e., the composite of recurrent DVT, non-fatal PE, and fatal PE). The principal safety outcome was major bleeding. Also the occurrence of clinically relevant non-major bleeding (e.g. nose bleeds, large skin hematomas, and macroscopic hematuria) was recorded. The study was event-driven requiring a minimum of 30 confirmed recurrent events. All outcomes were adjudicated by an independent blinded committee. Results: A total of 1197 patients were randomized between February 2007 and May 2009 by 280 study sites in 28 countries. The intention-to-treat population consisted of 602 rivaroxaban and 594 placebo patients. Baseline characteristics and risk factors for VTE were comparable between the two groups. The mean duration of study treatment was 190 days in both groups. During the treatment period, symptomatic recurrent VTE events occurred in 42 (7.1%) of the placebo treated patients and in 8 (1.3%) of the rivaroxaban recipients (hazard ratio, 0.18; 95 % CI, 0.09 – 0.39; p< 0.0001). After the stop of study medication, 6 symptomatic recurrent VTE events occurred in each group during the one month observational period. Major bleeding did not occur in placebo patients and was observed in 4 (0.7%) rivaroxaban recipients (p=0.106). None of these bleeding events were fatal or in a critical site. Clinically relevant non-major bleeding was noted in 7 (1.2%) and 32 (5.4%) of the placebo and rivaroxaban recipients, respectively. Two (0.3%) patients in the placebo group died versus 1 (0.2%) in the rivaroxaban group. No patients were observed to have an alanine aminotransferase (ALT) rise above 3 times the upper limit of normal (xULN) combined with a total bilirubin above 2 xULN. Conclusion: A fixed dose of 20 mg of rivaroxaban once-daily is associated with an 82% relative risk reduction in the recurrence of VTE in patients who had completed a 6 to 12 month course of anticoagulant therapy for their index event. Based on the estimated cumulative incidence rates, approximately, 15 patients need to be treated to prevent one recurrent VTE event. This clinically relevant reduction in recurrence was associated with a low incidence of major bleeding (0.7%). This oral once-daily regimen provides the clinician with a simple option for patients in whom continued anticoagulant treatment is indicated. Disclosures: Buller: Bayer Healthcare: Research Funding.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 4259-4259
Author(s):  
Joseph Shaw ◽  
Gregoire Le Gal ◽  
Melanie Tokessy ◽  
Nancy Cober ◽  
Elianna Saidenberg ◽  
...  

Abstract Introduction: A recent Canadian population based review showed a rapid increase in use of direct oral anticoagulants (DOACs) for prevention of systemic embolism in patients with atrial fibrillation (AF) (Xu et al.). These drugs offer advantages over traditional vitamin K antagonists (VKA) including fixed dosing regimens and elimination of laboratory monitoring. In Canada, patients receiving VKA requiring urgent surgery are reversed with prothrombin complex concentrates (PCC) with or without vitamin K. DOAC specific antidotes are under development and use of PCCs or activated PCC for the purposes of DOAC reversal for emergent procedures is controversial. We describe the use of activated PCC (FEIBA™) in patients receiving the DOACs (dabigatran, apixaban, or rivaroxaban) who required urgent surgical intervention. Methods: A retrospective review of patients receiving DOACs and requiring urgent reversal of anticoagulation effect for procedures or surgery at The Ottawa Hospital between January 2013 and June 2014 are included. Major bleeding was defined using the ISTH criteria (Schulman et al.). The primary outcome was major bleeding peri-operatively and secondary outcome was adverse embolic and thrombotic events during follow up. Results: Five patients were identified: two patients were on rivaroxaban, two were on apixaban, and one was on dabigatran. Baseline characteristics are shown in Table 1. One patient was on rivaroxaban for secondary prevention of venous thromboembolism (VTE), while the remaining patients had AF. Three patients required laparotomy for bowel obstruction; one patient required open femur fracture repair; and one patient required angiography and stent placement for ischemic bowel. A large majority of patients (80%) had received a dose of anticoagulant on the day of surgery. One patient required intra-operative blood transfusion. There were no embolic or thrombotic complications following FEIBA™ administration and all patients’ survived hospitalization. Conclusions: The use of FEIBA™ for reversal of DOAC effect for urgent surgery in this cohort of patients was effective and not associated with adverse thrombotic complications. Prospective studies evaluating use of potential benefits and harms of FEIBA™ for reversal of DOACs in patients requiring emergent surgery are needed. Abstract 4259. Table 1: Patients on DOACs Requiring Urgent Procedure Patient (Age and Gender) Indication For DOAC [AF(CHADS2); VTE] DOAC and Dosage Surgery/ Procedure Units of PRBCs Transfused FEIBA™ Dose (IU) Adverse Events post-FEIBA™ administration Survived Hospitalization 91 Female AF (4) Rivaroxaban 15 mg daily Femur fracture ORIF 3, intra-operatively 1812 -- Yes 50 Male VTE Apixaban 5 mg BID Laparotomy for SBO 0 1350 -- Yes 50 Female AF (4) Apixaban 2.5 mg BID Angiography + SMA stent for ischemic bowel 0 3918 -- Yes 77 Male AF (2) Rivaroxaban 20 md daily Laparotomy for incarcerated hernia/SBO 0 3241 Venous oozing intra-operatively Yes 78 Male AF (3) Dabigatran 110 mg BID SBO/ Femoral hernia repair 0 6000 -- Yes AF = atrial fibrillation; BID = twice daily; CHADS = congestive heart failure, hypertension, age, diabetes, stroke; DOAC = direct oral anticoagulant; IU = international units; ORIF = open reduction internal fixation; PRBC = packed red blood cells; SBO = small bowel obstruction; SMA = superior mesenteric artery; VTE = venous thromboembolism References: Schulman, S et al. J Thromb Haemost 2010; 8: 202–4. Xu, Y et al. CMAJ Open 2013; 1:E115-E119. Disclosures Off Label Use: FEIBA is an activated prothrombin complex concentrate that was used during management of patients on direct oral anticoagulants requiring urgent surgery..


2008 ◽  
Vol 100 (05) ◽  
pp. 780-788 ◽  
Author(s):  
Joel M. Gore ◽  
Darleen Lessard ◽  
Cathy Emery ◽  
Luigi Pacifico ◽  
George Reed ◽  
...  

SummaryWhile the magnitude of venous thromboembolism (VTE) increases dramatically with advancing age,relatively little is known about the contemporary management of VTE in the elderly and the impact of age on associated short- and long-term outcomes. The objectives of this population-based study were to compare the clinical characteristics,treatment practices,and outcomes of subjects ≥65 years with VTE to those of younger patients.The medical records of residents of the Worcester (MA, USA) metropolitan area with ICD-9 codes consistent with VTE during 1999, 2001, and 2003 were independently validated and reviewed by trained data abstractors. Information about patients’ demographic and clinical characteristics, hospital management practices, and hospital and long-term outcomes was collected. There were a total of 1,897 validated events of VTE – 1,048 (55%) occurred in patients ≥65 years of age. Patients ≥65 years were less likely to have “unprovoked” VTE than younger patients.They were less likely to receive parenteral anticoagulation or warfarin as acute treatment. Rates of recurrent VTE did not differ significantly between patients 65 years of age or older compared to younger patients but the adjusted rates of major bleeding were increased approximately two-fold in older patients. In conclusion, advancing age is not a predictor of recurrent VTE but is associated with a significant increase in major bleeding episodes. Physicians treating elderly patients with VTE should continue to base their decisions on clinical characteristics previously shown to impact the risk of recurrent VTE. These decisions must be tempered by our observation that major bleeding occurs frequently in these patients.


2019 ◽  
Vol 8 (12) ◽  
pp. 2228 ◽  
Author(s):  
Jiesuck Park ◽  
So-Ryoung Lee ◽  
Eue-Keun Choi ◽  
Soonil Kwon ◽  
Jin-Hyung Jung ◽  
...  

We investigated the effectiveness and safety of direct oral anticoagulants (DOACs) for secondary prevention in patients with atrial fibrillation (AF), particularly focusing on subgroups of patients with severe, disabling, and recent stroke. Using the Korean National Health Insurance Service claims database between January 2010 and April 2018, we selected OAC-naïve patients with non-valvular AF and a history of stroke. Cumulative risks for recurrent stroke, major bleeding, composite outcome (recurrent stroke + major bleeding), and mortality were compared between DOAC and warfarin groups. Among 61,568 patients, 28,839 and 32,729 received warfarin and DOACs, respectively. Compared with warfarin, DOACs were associated with lower risks of recurrent stroke (hazard ratio (HR) 0.67, 95% confidence interval (CI) 0.62–0.72), major bleeding (HR 0.73, 95% CI 0.66–0.80), composite outcome (HR 0.69, 95% CI 0.65–0.73), and mortality. DOAC use resulted in a consistent trend of improved outcomes in the subgroups of patients with severe, disabling, and recent stroke. In conclusion, DOACs were associated with lower risks of recurrent stroke, major bleeding, composite clinical outcomes, and mortality in patients with AF and a history of stroke. These results were consistent across all types of DOACs and subgroups of patients with severe, disabling, and recent stroke.


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