Venous Thromboembolism and Bleeding Events With Chemoprophylaxis in Abdominoplasty: A Systematic Review and Pooled Analysis of 1596 Patients

2021 ◽  
Author(s):  
Brittany M Perzia ◽  
Jocellie Marquez ◽  
Joseph A Mellia ◽  
Christopher Jou ◽  
Sammy Othman ◽  
...  
Keyword(s):  
Systematic Review ◽  
Venous Thromboembolism ◽  
Risk Stratification ◽  
Pooled Analysis ◽  
Risk Category ◽  
Bleeding Events ◽  
Level Of Evidence ◽  
Patient Demographics ◽  
Increased Risk ◽  
Surgical Bleeding

Abstract Background Many plastic surgeons avoid the administration of venous thromboembolism (VTE) chemoprophylaxis out of concern for surgical bleeding in abdominoplasty. Although previous studies have attempted to address the relationship between abdominoplasty and bleeding or VTE, poor reporting techniques remain a challenge. As a result, there has been a lack of reliable data to guide clinical practice. Objectives The authors sought to determine the prevalence of bleeding and VTE in abdominoplasty with and without chemoprophylaxis. Methods A systematic review was performed following PRISMA guidelines utilizing PubMed, CINAHL, and Cochrane Central. Patient demographics, comorbidities, risk category (if available), bleeding events, VTE events, and chemoprophylaxis information were recorded. Results Across 10 articles, 691 patients received chemoprophylaxis in the setting of abdominoplasty: 68 preoperatively, 588 postoperatively, and 35 received both; 905 patients did not receive chemoprophylaxis. A total of 96.8% of patients were female, 73% underwent concomitant liposuction, and none were clearly risk stratified. The overall incidence of VTE and bleeding was 0.56% (9/1596) and 1.6% (25/1596), respectively. Compared with no chemoprophylaxis, chemoprophylaxis was not associated with increased incidence of bleeding (1.3% [9/671] vs 0.91% [8/881], P = 0.417) or decreased incidence of VTE (0.87% [6/691] vs 0.33% [3/901], P = 0.187). Conclusions The prevalence of bleeding in abdominoplasty was low. Chemoprophylaxis was not associated with increased risk of bleeding or decreased risk of VTE, though the lack of risk stratification and heterogeneity of the cohort precludes firm conclusions. This study underscores the importance of utilizing validated risk-stratification tools to guide perioperative decision-making. Level of Evidence: 4

Abstract P255: Association of Mild Chronic Kidney Disease with Venous Thromboembolism: Pooled Analysis of Prospective General Population Cohorts

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Bakhtawar K Mahmoodi ◽  
Ron T Gansevoort ◽  
Inger Anne Naess ◽  
Pamela L Lutsey ◽  
Sigrid K Braekkan ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Venous Thromboembolism ◽  
Kidney Disease ◽  
General Population ◽  
Cox Regression ◽  
Meta Analysis ◽  
Random Effect ◽  
Pooled Analysis ◽  
Individual Level ◽  
Increased Risk

Background: Recent findings suggest that mild chronic kidney disease (CKD) might be associated with increased risk of venous thromboembolism (VTE). However, results were partially inconsistent, which may be due to lack of power. We therefore performed a meta-analysis to investigate the association between mild CKD and VTE incidence. Methods: A literature search was performed to retrieve community-based cohorts with information on the association of estimated glomerular filtration rate (eGFR) and albuminuria with VTE. Five cohorts were identified that were pooled on individual level. To obtain pooled hazard ratios (HRs) for VTE, linear spline models were fitted using Cox regression with shared-frailty. Models were adjusted for age, sex, hypertension, total cholesterol, smoking, diabetes, history of cardiovascular disease and body-mass index. Random-effect meta-analysis was used to obtain adjusted pooled HRs of VTE with CKD versus no CKD. Results: The analysis included 95,154 participants with 1,178 VTE cases and 599,453 person-years of follow-up. Risk of VTE increased continuously with lower eGFR and higher ACR (Figure). Compared with eGFR 100 mL/min/1.73m², pooled adjusted HRs for VTE were 1.3 (1.0–1.7) for eGFR 60, 1.8 (1.3–2.6) for 45 and 1.9 (1.2–2.9) for 30 mL/min/1.73m². Compared with albumin-creatinine ratio (ACR) 5 mg/g, pooled adjusted HRs for VTE were 1.3 (1.04–1.7) for ACR 30, 1.6 (1.1–2.4) for 300 and 1.9 (1.2–3.1) for 1000 mg/g. There was no evidence for interaction between eGFR and ACR (P=0.22). The pooled adjusted HR for CKD (eGFR <60 ml/min/1.73m² or albuminuria ≥30 mg/g) vs. no CKD was 1.5 (95%CI, 1.2–2.1). Results were similar for idiopathic and provoked VTE. Conclusion: Both reduced eGFR and elevated albuminuria are novel independent predictors of VTE in the general population.

scholarly journals Comparing pharmacological venous thromboembolism prophylaxis to intermittent pneumatic compression in acute intracerebral haemorrhage: protocol for a systematic review and network meta-analysis

BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e024405 ◽  
Author(s):  
Vignan Yogendrakumar ◽  
Ronda Lun ◽  
Brian Hutton ◽  
Dean A Fergusson ◽  
Dar Dowlatshahi
Keyword(s):  
Systematic Review ◽  
Venous Thromboembolism ◽  
Intracerebral Haemorrhage ◽  
Meta Analysis ◽  
Indirect Evidence ◽  
Intermittent Pneumatic Compression ◽  
Qualitative Assessment ◽  
Primary Data ◽  
Thromboembolism Prophylaxis ◽  
Increased Risk

IntroductionPatients with an intracerebral haemorrhage are at increased risk of venous thromboembolism. Pharmacotherapy and pneumatic compression devices are capable of preventing venous thromboembolism, however both interventions have limitations. There are no head-to-head comparisons between these two interventions. To address this knowledge gap, we plan to perform a systematic review and network meta-analysis to examine the comparative effectiveness of pharmacological prophylaxis and mechanical compression devices in the context of intracerebral haemorrhage.Methods and analysisMEDLINE, PUBMED, EMBASE, CENTRAL, ClinicalTrials.gov and the Internet Stroke Trials Registry will be searched with assistance from an experienced information specialist. Eligible studies will include those that have enrolled adults presenting with spontaneous intracerebral haemorrhage and compared one or more of the respective interventions against each other and/or a control. Primary outcomes to be assessed are occurrence of new venous thromboembolism (deep vein thrombosis and/or pulmonary embolism) and haematoma expansion, defined as a significant enlargement of baseline haemorrhage or new haemorrhage occurrence. Both randomised and non-randomised comparative studies will be included. Data on participant characteristics, study design, intervention details and outcomes will be extracted. Study quality will be assessed using the Cochrane Risk of Bias Tool and the Robins-I tool. Bayesian network meta-analyses will be performed to compare interventions based on all available direct and indirect evidence. If the transitivity assumption for network meta-analysis cannot be met, we will perform a qualitative assessment.Ethics and disseminationFormal ethics is not required as primary data will not be collected. The findings of this study will be disseminated through conference presentations, and peer-reviewed publications. In an area of clinical practice where equipoise exists, the findings of this study may assist in determining which treatment intervention is most effective in venous thromboembolism prevention.PROSPERO registration numberCRD42018090960.

scholarly journals Association of myocardial fibrosis detected by late gadolinium-enhanced MRI with clinical outcomes in patients with diabetes: a systematic review and meta-analysis

BMJ Open ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. e055374
Author(s):  
Zhi Yang ◽  
Rong Xu ◽  
Jia-rong Wang ◽  
Hua-yan Xu ◽  
Hang Fu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Risk Stratification ◽  
Myocardial Fibrosis ◽  
Meta Analysis ◽  
Imaging Biomarker ◽  
Cardiac Events ◽  
Prognostic Information ◽  
Increased Risk ◽  
Patients With Diabetes

ObjectiveThis meta-analysis assessed the associations of myocardial fibrosis detected by late gadolinium-enhanced (LGE)-MRI with the risk of major adverse cardiac and cerebrovascular events (MACCEs) and major adverse cardiac events (MACEs) in patients with diabetes.DesignSystematic review and meta-analysis reported in accordance with the guidelines of the Meta-analysis of Observational Studies in Epidemiology statement.Data sourcesWe searched the Medline, Embase and Cochrane by Ovid databases for studies published up to 27 August 2021.Eligibility criteriaProspective or respective cohort studies were included if they reported the HR and 95% CIs for MACCEs/MACEs in patients with either type 1 or 2 diabetes and LGE-MRI-detected myocardial fibrosis compared with patients without LGE-MRI-detected myocardial fibrosis and if the articles were published in the English language.Data extraction and synthesisTwo review authors independently extracted data and assessed the quality of the included studies. Pooled HRs and 95% CIs were analysed using a random effects model. Heterogeneity was assessed using forest plots and I2 statistics.ResultsEight studies with 1121 patients with type 1 or type 2 diabetes were included in this meta-analysis, and the follow-up ranged from 17 to 70 months. The presence of myocardial fibrosis detected by LGE-MRI was associated with an increased risk for MACCEs (HR: 2.58; 95% CI 1.42 to 4.71; p=0.002) and MACEs (HR: 5.28; 95% CI 3.20 to 8.70; p<0.001) in patients with diabetes. Subgroup analysis revealed that ischaemic fibrosis detected by LGE was associated with MACCEs (HR 3.80, 95% CI 2.38 to 6.07; p<0.001) in patients with diabetes.ConclusionsThis study demonstrated that ischaemic myocardial fibrosis detected by LGE-MRI was associated with an increased risk of MACCEs/MACEs in patients with diabetes and may be an imaging biomarker for risk stratification. Whether LGE-MRI provides incremental prognostic information with respect to MACCEs/MACEs over risk stratification by conventional cardiovascular risk factors requires further study.

scholarly journals Tinzaparin in Cancer and Renal Impairment: A Systematic Review Focusing on Safety

2020 ◽  
Author(s):  
Ioannis Vathiotis ◽  
Nikolaos Syrigos ◽  
Evangelos Dimakakos
Keyword(s):  
Systematic Review ◽  
Renal Impairment ◽  
Creatinine Clearance ◽  
Cancer Patients ◽  
Major Bleeding ◽  
Severe Renal Impairment ◽  
Vitamin K Antagonists ◽  
Bleeding Events ◽  
Increased Risk ◽  
Therapeutic Doses

Abstract Purpose: Low-molecular-weight heparins are approved for primary and secondary venous thromboembolism prevention. The purpose of this systematic review is to provide an update regarding the safety profile of tinzaparin sodium, prescribed either as a prophylactic or as a therapeutic regimen for VTE in cancer patients and individuals suffering from renal impairment. Method: We identified and studied clinical studies from 2000 until 2020, reporting safety outcomes for cancer patients and individuals with renal impairment receiving either prophylactic or therapeutic doses of tinzaparin. Results: In patients with cancer major bleeding rates fluctuate between 0.8% and 7%; reported major bleeding rates for non-cancer patients with renal impairment on prophylactic tinzaparin regimens were 0%. Non-cancer patients on therapeutic tinzaparin regimens exhibited major bleeding in 0 to 2.3% of cases; major bleeding rates were higher for cancer patients with renal impairment receiving therapeutic doses of tinzaparin (4.3 to 10%). Patients on tinzaparin exhibit significantly lower rates of clinically relevant nonmajor bleeding events in comparison with those on vitamin K antagonists. Bioaccumulation of tinzaparin is not correlated with age, body weight or creatinine clearance. Periodic administration of either prophylactic or therapeutic doses of tinzaparin does not result in bioaccumulation, even in patients with severe renal impairment and creatinine clearance < 20 ml/min. Conclusion: Tinzaparin is safe and can be used without dose adjustment in patients with severe renal impairment and creatinine clearance > 20 ml/min. Tinzaparin represents a thoroughly studied and safe choice for special populations at increased risk for thrombosis and bleeding.

scholarly journals Effectiveness and safety of inpatient versus extended venous thromboembolism (VTE) prophylaxis with heparin following major pelvic surgery for malignancy: protocol for a systematic review

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Bridget Heijkoop ◽  
Natalie Parker ◽  
George Kiroff ◽  
Daniel Spernat
Keyword(s):  
Systematic Review ◽  
Venous Thromboembolism ◽  
Systematic Reviews ◽  
Pelvic Surgery ◽  
Current Evidence ◽  
Cochrane Library ◽  
Vte Prophylaxis ◽  
Optimum Duration ◽  
Number Of Patients ◽  
Increased Risk

Abstract Background Venous thromboembolism (VTE) is a common postoperative complication associated with significant morbidity and mortality. The use of prophylactic heparin postoperatively reduces this risk, and the use of extended duration prophylaxis is becoming increasingly common. Malignancy and pelvic surgery both independently further increase the risk of postoperative VTE and patients undergoing major pelvic surgery for malignancy are at particularly high risk of VTE. However, the optimum duration of prophylaxis specifically in this population currently remains unclear. Methods We will conduct a systematic review of literature in accordance with the Cochrane Handbook for Systematic Reviews of Interventions (Higgins JPT, Green S. Cochrane Handbook for Systematic Reviews of Interventions version 5.1.0.,2011) to evaluate current evidence of the effectiveness and safety of inpatient versus extended VTE prophylaxis with heparin (all forms) following major pelvic surgery for malignancy. We will search PubMed, EMBASE, and the Cochrane Library. Regarding safety, Food and Drug Administration (FDA), and Therapeutic Goods Administration (TGA) websites will be searched, including all levels of evidence. Results will be the postoperative timeframe in which a VTE event can be considered to have been provoked by the surgery, and the number of patients needed to treat with both inpatient and extended prophylaxis to prevent a VTE event in this timeframe, comparing these to determine if there is a significant benefit from extended prophylaxis. Discussion This systematic review will aim to identify the postoperative period in which patients undergoing major pelvic surgery for malignancy are at further increased risk of VTE as a result of their surgery and the optimum duration of heparin VTE prophylaxis with heparin to reduce this risk. Determining this will allow evidence-based recommendations to be made for the optimum duration of heparin VTE prophylaxis post major pelvic surgery for malignancy, leading to improved standards of care that are consistent between different providers and institutions. Systematic review registration In accordance with guidelines, our systematic review was submitted to PROSPERO for consideration of registration on 16/12/17 and was registered on 12/1/18 with the registration number CRD42018068961, and it was last updated on December 1, 2018.

scholarly journals Risk of major bleeding during extended oral anticoagulation in patients with first unprovoked venous thromboembolism: a systematic review and meta-analysis protocol

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Faizan Khan ◽  
Miriam Kimpton ◽  
Tobias Tritschler ◽  
Grégoire Le Gal ◽  
Brian Hutton ◽  
...  
Keyword(s):  
Systematic Review ◽  
Venous Thromboembolism ◽  
Anticoagulant Therapy ◽  
Major Bleeding ◽  
Oral Anticoagulation ◽  
Meta Analysis ◽  
Controlled Trials ◽  
Bleeding Events ◽  
Major Bleeding Events

Abstract Background The optimal duration of anticoagulation after a first unprovoked venous thromboembolism (VTE) remains controversial. Deciding to stop or continue anticoagulant therapy indefinitely after completing 3 to 6 months of initial treatment requires balancing the long-term risk of recurrent VTE if anticoagulation is stopped against the long-term risk of major bleeding if anticoagulation is continued. However, knowledge of the long-term risk for major bleeding events during extended anticoagulation in this patient population is limited. We plan to conduct a systematic review and meta-analysis to quantify the risk for major bleeding events during extended oral anticoagulation in patients with first unprovoked VTE. Methods Electronic databases including MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials will be systematically searched with the assistance of an information specialist (from inception to March 1, 2019) to identify randomized controlled trials and prospective cohort studies reporting major bleeding during extended oral anticoagulation in patients with first unprovoked VTE, who have completed at least 3 months of initial anticoagulant therapy. Study selection, risk of bias assessment, and data extraction will be performed independently by at least two investigators. The number of major bleeding events and person-years of follow-up will be used to calculate the rate (events per 100 person-years) with its 95% confidence interval for each study cohort, during clinically relevant time periods of extended anticoagulant therapy. Results will be pooled using random effect meta-analysis. Discussion The planned systematic review and meta-analysis will provide reliable estimates of the risk for major bleeding events during extended anticoagulation. This information will help inform patient prognosis and assist clinicians with balancing the risks and benefits of treatment to guide management of unprovoked VTE. Systematic review registration PROSPERO CRD42019128597.

The Efficacy of Dextran-40 as a Venous Thromboembolism Prophylaxis Strategy in Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy

2017 ◽  
Vol 83 (2) ◽  
pp. 134-140 ◽  
Author(s):  
Jason M. Foster ◽  
Richard Sleightholm ◽  
Duncan Watley ◽  
Steven Wahlmeier ◽  
Asish Patel
Keyword(s):  
Venous Thromboembolism ◽  
Intraperitoneal Chemotherapy ◽  
Hyperthermic Intraperitoneal Chemotherapy ◽  
Medical Center ◽  
Bleeding Complications ◽  
Bleeding Events ◽  
Thromboembolism Prophylaxis ◽  
Dextran 40 ◽  
Perioperative Bleeding ◽  
Increased Risk

The incidence of venous thromboembolism (VTE) in peritoneal malignancies can approach 30 to 50 per cent without prophylaxis. Prophylaxis in cytoreductive surgeries (CRS) presents a challenge to preoperative heparin-based therapy because of an increased risk of coagulopathy and potential for bleeding. Herein, we report the large series of CRS and hyperthermic intraperitoneal chemotherapy receiving dextran-40 prophylaxis. Retrospective chart review of peritoneal malignancies patients undergoing CRS at University of Nebraska Medical Center identified 69 individuals who received dextran-40 between 2010 and 2013. The incidences of VTEs, perioperative bleeding, complications, morbidity, and mortality were determined in-hospital and at 90 days. Of the 69 patients treated, the 30-day VTE rate was 8.7 per cent, and no pulmonary embolisms, bleeding, anaphylactoid reaction, or mortality were observed with dextran usage. The specific VTE events included three upper extremity and three lower extremity VTEs. No additional VTE events were identified between 30 and 90 days. In conclusion, dextran-40 prophylaxis was not associated with any perioperative bleeding events, and the observed incidence of VTE was comparable to reported heparin-based prophylaxis in CRS/hyperthermic intraperitoneal chemotherapy patients. This data supports further exploration of dextran-40 as a VTE prophylactic agent in complex surgical oncology cases.

scholarly journals Safety of Rivaroxaban for Postoperative Venous Thromboembolism Prophylaxis Following Abdominal Body Contouring Surgery: 600 Patients

2020 ◽  
Author(s):  
Vasileios Vasilakis ◽  
Bill G Kortesis ◽  
Gaurav Bharti ◽  
Matthew H Isakson ◽  
Joseph P Hunstad
Keyword(s):  
Venous Thromboembolism ◽  
Oral Anticoagulants ◽  
Body Contouring ◽  
Bleeding Complications ◽  
Bleeding Events ◽  
Level Of Evidence ◽  
Once Daily ◽  
Postoperative Course ◽  
Body Contouring Surgery ◽  
Vte Prophylaxis

Abstract Background Reducing the incidence of venous thromboembolism (VTE) following abdominal body contouring surgery remains a top priority for patient safety. There is a lack of consensus regarding the optimal chemoprophylactic agent for postoperative VTE prophylaxis, and the role of oral anticoagulants warrants further investigation. Objectives The aim of this multisurgeon, single-institution study was to determine the safety and efficacy of a 7-day postoperative rivaroxaban regimen for VTE prophylaxis in abdominal body contouring surgery. Methods A retrospective chart review was performed of all patients who underwent abdominoplasty, circumferential body lift, fleur-de-lis panniculectomy, or circumferential fleur-de-lis panniculectomy at our surgical center from August 2014 to November 2019. A 7-day postoperative course of once-daily 10 mg rivaroxaban, starting on postoperative day 1, was administered to every patient unless there was a contraindication. The 2 primary endpoints were the incidence of VTE and bleeding events. Results A total of 600 patients were included in the study. There were no deaths. There were 4 (0.7%) incidents of VTE events: 2 (0.3%) patients suffered pulmonary embolus and 2 (0.3%) patients suffered a lower-extremity deep venous thrombosis. A total of 13 (2.2%) patients suffered complications related to bleeding. Of these, operative intervention for control and evacuation was required in 7 (1.2%) patients. Conclusions A 7-day postoperative course of once-daily rivaroxaban for VTE risk reduction in abdominal body contouring surgery is associated with a low incidence of VTE events and a low risk of bleeding complications. Level of Evidence: 4

A Pooled Analysis of Four Pivotal Studies of Rivaroxaban for the Prevention of Venous Thromboembolism after Orthopaedic Surgery: Effects of Specified Co-Medications.

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 1986-1986
Author(s):  
Bengt Eriksson ◽  
Alexander GG Turpie ◽  
Michael Rud Lassen ◽  
Ajay K Kakkar ◽  
Frank Misselwitz ◽  
...  
Keyword(s):  
Placebo Group ◽  
Venous Thromboembolism ◽  
Major Bleeding ◽  
Medication Use ◽  
Pooled Analysis ◽  
Phase Iii ◽  
Bleeding Events ◽  
Time Periods ◽  
Rate Ratios ◽  
Over Time

Abstract RECORD is a pivotal clinical trial program investigating rivaroxaban – an oral, direct Factor Xa inhibitor – for the prevention of venous thromboembolism (VTE) following elective total hip and knee replacement (THR and TKR). The four multinational, randomized, double-blind, double-dummy phase III studies (RECORD1, 2, 3 and 4) in patients undergoing THR or TKR surgery, comparing rivaroxaban with enoxaparin 40 mg once daily (od) or 30 mg twice daily (bid), have been completed. Patients (N=12,729) were randomized to receive oral rivaroxaban 10 mg od starting 6–8 hours after surgery, or subcutaneous enoxaparin 40 mg od starting the evening before surgery (RECORD1–3) or 30 mg bid starting 12–24 hours after wound closure or adequate hemostasis (RECORD4). Those undergoing THR received rivaroxaban or enoxaparin for 31–39 days in RECORD1, and rivaroxaban for 31–39 days or enoxaparin for 10–14 days followed by placebo in RECORD2. In RECORD3 and 4 (TKR), prophylaxis was for 10–14 days. A pooled analysis of the results of all four RECORD studies evaluated the effect of rivaroxaban on the composite of symptomatic VTE and death, and bleeding. The aim of the present subgroup analysis was to investigate potential drug–drug interactions with specified co-medications, by describing the risk of on-treatment bleeding in the total study duration pool of all four RECORD studies. The co-medications investigated were non-steroidal anti-inflammatory drugs (NSAIDs) and acetylsalicylic acid (ASA), which are commonly used pain medications known to have a pharmacodynamic effect on bleeding. There was no restriction on the choice of specific drug or on the dose of ASA in the study protocols. These pre-specified analyses focused on on-treatment, adjudicated bleeding events – any bleeding, and the composite of major bleeding, and clinically relevant non-major bleeding – after the first tablet intake (rivaroxaban or matching placebo) and up to 2 days after the last dose of medication. Co-medication use was considered a time-dependent covariate, and relative bleeding rates with and without the co-medication were calculated for the rivaroxaban and enoxaparin/placebo groups separately. The time relative to surgery (day of surgery was day 1) was stratified into three time periods (days 1–3, days 4–7, and day 7 onwards), based on the consideration that the risk of a first bleeding event decreases over time after surgery, and because the prevalence of co-medication use can vary over time. Bleeding rates were recorded for each of these time periods over the at-risk period, which extended from the day of surgery until the last day of study medication intake +2 days or until event onset (recurrent bleeds were not included in the analyses). Rate ratios were derived using stratified Mantel–Haenszel methods. The ratios of the bleeding rate for exposed versus unexposed patient-days in the rivaroxaban group were compared with the corresponding rate ratio for the enoxaparin/placebo group for bleeding events. The concomitant use of ASA in the rivaroxaban groups showed rate ratios similar to those obtained in the enoxaparin/placebo group, for all bleeding endpoints. Rate ratios for bleeding endpoints were also similar between the rivaroxaban and the enoxaparin/placebo groups with concomitant use of NSAIDs. This RECORD1–4 subanalysis indicates that the use of these co-medications does not increase bleeding risk in patients taking rivaroxaban, compared with enoxaparin

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