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Specialty: Urology & Nephrology
Condition: Atrial Fibrillation
Nutrition: Vitamins

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Total 18 results found since Jan 2013.

Oral Anticoagulants to Prevent Stroke in Nonvalvular Atrial Fibrillation in Patients With CKD Stage 5D: An NKF-KDOQI Controversies Report
Publication date: Available online 21 September 2017 Source:American Journal of Kidney Diseases Author(s): Vinod K. Bansal, Charles A. Herzog, Mark J. Sarnak, Michael J. Choi, Ravindra Mehta, Bernard G. Jaar, Michael V. Rocco, Holly Kramer Stroke risk may be more than 3-fold higher among patients with chronic kidney disease stage 5D (CKD-5D) compared to the general population, with the highest stroke rates noted among those 85 years and older. Atrial fibrillation (AF), a strong risk factor for stroke, is the most common arrhythmia and affects >7% of the population with CKD-5D. Warfarin use is widely acknowledged as...
Source: American Journal of Kidney Diseases - September 21, 2017 Category: Urology & Nephrology Source Type: research

Recent Advances in Stroke Prevention in Patients with Atrial Fibrillation and End-Stage Renal Disease
Background: Chronic kidney disease (CKD) is associated with a high prevalence of atrial fibrillation (AF), but in this population the risk/benefit ratio of anticoagulant therapy with vitamin K antagonists (VKA) for thromboprophylaxis is uncertain.Summary: In end-stage renal disease (ESRD) patients undergoing hemodialysis, VKA seem less effective in stroke prevention than in the general population, with an increased risk of major bleeding. Recently, novel oral anticoagulant agents (NOACs) have proven to be effective for stroke prevention in AF and have demonstrated an improved safety profile compared to VKA. Limited data fr...
Source: Cardiorenal Medicine - April 26, 2017 Category: Urology & Nephrology Source Type: research

Direct oral anticoagulants in chronic kidney disease: an update
Purpose of review Direct oral anticoagulants (DOACs) are variably eliminated by the kidneys rendering their use potentially problematic in patients with chronic kidney disease (CKD) or necessitating appropriate dose adjustment. Recent findings Both observational and limited randomized trial data for DOACs compared with no treatment or with warfarin for patients with atrial fibrillation on maintenance dialysis were recently published. In a randomized trial in patients on hemodialysis, there was no significant difference in vascular calcification between patients who received rivaroxaban with or without vitamin K2 or vi...
Source: Current Opinion in Nephrology and Hypertension - August 1, 2020 Category: Urology & Nephrology Tags: PHARMACOLOGY AND THERAPEUTICS: Edited by Sankar D. Navaneethan Source Type: research

Patients' Characteristics Affect the Survival Benefit of Warfarin Treatment for Hemodialysis Patients with Atrial Fibrillation. A Historical Cohort Study.
CONCLUSION: VKA may provide an early survival benefit; however, this is partially offset later during the follow-up. In addition, heterogeneous risk-benefit profiles were observed among subgroups of dialysis-dependent patients with AF, further emphasizing the complexities of tailoring stroke prevention strategies in this population. PMID: 27598317 [PubMed - as supplied by publisher]
Source: American Journal of Nephrology - September 6, 2016 Category: Urology & Nephrology Authors: Brancaccio D, Neri L, Bellocchio F, Barbieri C, Amato C, Mari F, Canaud B, Stuard S Tags: Am J Nephrol Source Type: research

Atrial fibrillation in dialysis patients: is there a place for non-vitamin K antagonist oral anticoagulants?
AbstractAtrial fibrillation (AF) occurs approximately in 3% of general population, with greater prevalence in elderly. Non-vitamin K-dependent oral anticoagulant agents (NOACs) according to the current European guidelines are recommended for patients with AF at high risk for stroke as a first-choice treatment. NOACs are not inferior to warfarin or some of them are better than warfarin in reducing the rate of ischemic stroke. Moreover, they significantly reduce the rate of intracranial hemorrhages, major bleedings, and mortality compared with warfarin. Nevertheless according to ESC guidelines, NOACs are not recommended in p...
Source: International Urology and Nephrology - May 21, 2018 Category: Urology & Nephrology Source Type: research

The effects of vitamin K supplementation and vitamin K antagonists on progression of vascular calcification: ongoing randomized controlled trials
Conclusion Vitamin K deficiency may be a modifiable cardiovascular risk factor in the haemodialysis population. Conversely, vitamin K antagonists may aggravate VC burden in haemodialysis patients. Several ongoing trials may provide an answer to these questions in the near future.
Source: CKJ: Clinical Kidney Journal - March 15, 2016 Category: Urology & Nephrology Authors: Caluwe, R., Pyfferoen, L., De Boeck, K., De Vriese, A. S. Tags: CKD-MBD Source Type: research

Novel oral anticoagulants in chronic kidney disease: ready for prime time?
Purpose of review Patients with chronic kidney disease (CKD) are at increased risk of atrial fibrillation, stroke, and bleeding posing unique clinical challenges. Novel oral anticoagulants (NOACs) including dabigatran, rivaroxaban, and apixaban have become recognized as alternative therapy to Vitamin K Antagonists (VKA) regarding the prevention of venous thromboembolism (VTE) and reduce the risk of stroke in atrial fibrillation. However, the understanding of NOACs in CKD is still underdeveloped. This review summarizes recent literature on the efficacy and safety of NOACs in patients with CKD. Recent findings Studies f...
Source: Current Opinion in Nephrology and Hypertension - April 5, 2018 Category: Urology & Nephrology Tags: EPIDEMIOLOGY AND PREVENTION: Edited by Navdeep Tangri Source Type: research

Sailing between Scylla and Charybdis: oral long-term anticoagulation in dialysis patients
End-stage renal disease (ESRD) patients exhibit an increased risk of bleeding compared with non-chronic kidney disease (CKD) patients due to uraemic platelet dysfunction, altered vessel architecture and other factors. This renders any long-term oral anticoagulation potentially difficult. While there is little doubt that ESRD patients with recurrent thromboembolism or a mechanical cardiac valve should receive vitamin K antagonists (coumarins), the use of coumarins in ESRD patients with atrial fibrillation is a matter of debate. In non-CKD patients, current guidelines strongly recommend the use of oral anticoagulants for str...
Source: Nephrology Dialysis Transplantation - March 5, 2013 Category: Urology & Nephrology Authors: Kruger, T., Brandenburg, V., Schlieper, G., Marx, N., Floege, J. Tags: CLINICAL SCIENCE AND OUTCOME RESEARCH IN NEPHROLOGY Source Type: research

Vitamin k antagonists: beyond bleeding.
Abstract Warfarin is the most widely used oral anticoagulant in clinical use today. Indications range from prosthetic valve replacement to recurrent thromboembolic events due to antiphospholipid syndrome. In hemodialysis (HD) patients, warfarin use is even more frequent than in the nonrenal population due to increased cardiovascular comorbidities. The use of warfarin in dialysis patients with atrial fibrillation requires particular caution because side effects may outweigh the assumed benefit of reduced stroke rates. Besides increased bleeding risk, coumarins exert side effects which are not in the focus of clinic...
Source: Seminars in Dialysis - January 1, 2014 Category: Urology & Nephrology Authors: Krüger T, Floege J Tags: Semin Dial Source Type: research

Epidemiologic insights on the role of fibroblast growth factor 23 in cardiovascular disease
Purpose of review: Fibroblast growth factor 23 (FGF23) regulates phosphate and vitamin D homeostasis and rises as kidney function declines. Animal studies have demonstrated direct and indirect effects of FGF23 that may promote heart disease. Herein, we review the recent epidemiologic literature evaluating the relationship between FGF23 and cardiovascular disease. Recent findings: In observational prospective studies, higher FGF23 associates with a greater risk of incident cardiovascular disease including ischemic heart disease, stroke, heart failure, and atrial fibrillation. These studies establish a temporal sequence of e...
Source: Current Opinion in Nephrology and Hypertension - April 14, 2015 Category: Urology & Nephrology Tags: EPIDEMIOLOGY AND PREVENTION: Edited by Navdeep Tangri Source Type: research

Dose-Finding Study of Rivaroxaban in Hemodialysis Patients
Conclusions A 10-mg dose of rivaroxaban in hemodialysis patients without residual kidney function results in drug exposure similar as published for 20mg in healthy volunteers. Rivaroxaban is not eliminated by dialysis. There is no accumulation after multiple daily dosing. The efficacy and safety of rivaroxaban in hemodialysis patients should be the subject of a large randomized trial.
Source: American Journal of Kidney Diseases - June 22, 2015 Category: Urology & Nephrology Source Type: research

Which anticoagulants should be used for stroke prevention in non-valvular atrial fibrillation and severe chronic kidney disease?
Purpose of review Non-valvular atrial fibrillation is common in patients with severe chronic kidney disease (CKD) and historically patients have been treated with vitamin K antagonists (VKA). However, these agents have questionable efficacy and are associated with increased bleeding risk. Non-vitamin K oral anticoagulants (NOAC) have advantages over VKA in early stage CKD. In this review, we sought to establish evidence for best practice in patients with severe CKD (creatinine clearance
Source: Current Opinion in Nephrology and Hypertension - October 5, 2018 Category: Urology & Nephrology Tags: DIAGNOSTICS AND TECHNIQUES: Edited by Maarten W. Taal Source Type: research

Recent evidence for direct oral anticoagulants in chronic kidney disease
Purpose of review The direct oral anticoagulants (DOACs) have emerged as an effective and safe alternative to vitamin K antagonists (VKAs) for stroke and venous thromboembolism (VTE) prevention. However, patients with chronic kidney disease (CKD) experience an increase in the risk of both thromboembolism and bleeding, and the risk–benefit profile of DOACs, particularly in advanced CKD remains a source of ongoing debate. This review summarizes the recent evidence on the effects of DOACs in CKD across a range of clinical indications including newly emerging indications. Recent findings Data on early-to-moderate stage ...
Source: Current Opinion in Nephrology and Hypertension - April 4, 2019 Category: Urology & Nephrology Tags: EPIDEMIOLOGY AND PREVENTION: Edited by Navdeep Tangri Source Type: research

Warfarin in nonvalvular atrial fibrillation-Time for a change?
Abstract Warfarin is the most commonly prescribed anticoagulant in hemodialysis (HD) patients with nonvalvular atrial fibrillation (NVAF). Recent trends show that Nephrologists are increasingly prescribing novel oral anticoagulants, despite the fact that no randomized clinical trials have been conducted in dialysis patients. Difficulties maintaining international normalized ratio in the therapeutic range, increased risk of intracranial hemorrhage and concerns regarding warfarin-induced vascular calcification and calciphylaxis may be responsible. Anticoagulation quality is poor in HD patients. A variety of factors ...
Source: Seminars in Dialysis - June 16, 2019 Category: Urology & Nephrology Authors: Reilly RF, Jain N Tags: Semin Dial Source Type: research

Systematic DOACs oral anticoagulation in patients with atrial fibrillation and chronic kidney disease: the nephrologist's perspective.
Abstract Atrial fibrillation (AF) is highly prevalent among patients with chronic kidney disease (CKD), and also associated with unfavorable outcome. Anticoagulant therapy is the mainstep of management in such patients, aimed at reducing the high risk of systemic thromboembolism and especially of ischemic stroke, which is reportedly associated with increased mortality in CKD patients. Even though new direct oral anticoagulant agents (DOACs) proved to be effective in patients with non valvular chronic AF, and are therefore recommended by recent guidelines for their treatment, warfarin is currently used in more than...
Source: Journal of Nephrology - March 20, 2020 Category: Urology & Nephrology Authors: Ravera M, Bussalino E, Fusaro M, Di Lullo L, Aucella F, Paoletti E Tags: J Nephrol Source Type: research