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      Impact of chronic kidney disease on Watchman implantation: experience with 300 consecutive left atrial appendage closures at a single center

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          Abstract

          The prevalence of chronic kidney disease (CKD) is high in patients with atrial fibrillation (AF). Left atrial appendage closure (LAAC) has been recognized as an efficient alternative to oral anticoagulation for the prevention of thromboembolic events in patients with non-valvular AF (NVAF); however, the long-term safety and efficacy of LAAC in patients with CKD remain unclear. This study was designed to provide data regarding the safety and efficacy of LAAC in NVAF patients with CKD. A real-world analysis of the safety and efficacy of LAAC was performed on a cohort of 300 NVAF patients with or without CKD who underwent LAAC using the Watchman (WM) device at our center. The patients with CKD ( n = 151) were significantly older (77.0 ± 7.2 vs. 73.2 ± 7.8 years, respectively, P < 0.0001) and had a higher CHA2DS2-VASc score (4.3 ± 1.5 vs. 3.4 ± 1.4, respectively, P < 0.0001) and HAS-BLED score (4.0 ± 1.0 vs. 3.0 ± 1.0, respectively, P < 0.0001) than the patients without CKD ( n = 149). However, there were no differences between groups with respect to the device implant success rate (98.7 vs. 97.3%, respectively, P = 0.446) or severe periprocedural complications within 7 days. The patients were followed up for 637 ± 398 days, and all patients received repeat transesophageal echocardiography (TEE). Thirteen (4.3%) device-related thrombi, 3 (1.0%) ischemic strokes, and 19 (6.3%) non-procedural major bleeding cases were documented, and there were no differences in these complications between groups. The observed rate of all thromboembolic events by Kaplan–Meier analysis decreased by 68.8% (CKD) and 48.6% (non-CKD); moreover, the observed annual rate of bleeding was reduced by 57.5% (CKD) and 11.4% (non-CKD). Our results indicate that LAAC with the WM device is safe and effective in preventing stroke in NVAF patients with and without CKD.

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          Most cited references 14

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          Prevalence of diagnosed atrial fibrillation in adults: national implications for rhythm management and stroke prevention: the AnTicoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study.

          Atrial fibrillation is the most common arrhythmia in elderly persons and a potent risk factor for stroke. However, recent prevalence and projected future numbers of persons with atrial fibrillation are not well described. To estimate prevalence of atrial fibrillation and US national projections of the numbers of persons with atrial fibrillation through the year 2050. Cross-sectional study of adults aged 20 years or older who were enrolled in a large health maintenance organization in California and who had atrial fibrillation diagnosed between July 1, 1996, and December 31, 1997. Prevalence of atrial fibrillation in the study population of 1.89 million; projected number of persons in the United States with atrial fibrillation between 1995-2050. A total of 17 974 adults with diagnosed atrial fibrillation were identified during the study period; 45% were aged 75 years or older. The prevalence of atrial fibrillation was 0.95% (95% confidence interval, 0.94%-0.96%). Atrial fibrillation was more common in men than in women (1.1% vs 0.8%; P<.001). Prevalence increased from 0.1% among adults younger than 55 years to 9.0% in persons aged 80 years or older. Among persons aged 50 years or older, prevalence of atrial fibrillation was higher in whites than in blacks (2.2% vs 1.5%; P<.001). We estimate approximately 2.3 million US adults currently have atrial fibrillation. We project that this will increase to more than 5.6 million (lower bound, 5.0; upper bound, 6.3) by the year 2050, with more than 50% of affected individuals aged 80 years or older. Our study confirms that atrial fibrillation is common among older adults and provides a contemporary basis for estimates of prevalence in the United States. The number of patients with atrial fibrillation is likely to increase 2.5-fold during the next 50 years, reflecting the growing proportion of elderly individuals. Coordinated efforts are needed to face the increasing challenge of optimal stroke prevention and rhythm management in patients with atrial fibrillation.
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            Prevalence, age distribution, and gender of patients with atrial fibrillation. Analysis and implications.

            The prevalence of atrial fibrillation (AF) is related to age. Anticoagulation is highly effective in preventing stroke in patients with AF, but the risk of hemorrhage may be increased in older patients. We reviewed the available epidemiologic data to define the age and sex distribution of people with AF. From four large recent population-based surveys, we estimated the overall age- and gender-specific prevalence of AF. These estimates were applied to the recent US census data to calculate the number of men and women with AF in each age group. There are an estimated 2.2 million people in the United States with AF, with a median age of about 75 years. The prevalence of AF is 2.3% in people older than 40 years and 5.9% in those older than 65 years. Approximately 70% of individuals with AF are between 65 and 85 years of age. The absolute number of men and women with AF is about equal. After age 75 years, about 60% of the people with AF are women. In contrast to people with AF in the general population, patients with AF in recent anticoagulation trials had a mean age of 69 years, and only 20% were older than 75 years. The risks and benefits of antithrombotic therapy in older individuals are important considerations in stroke prevention in AF.
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              Percutaneous left atrial appendage closure vs warfarin for atrial fibrillation: a randomized clinical trial.

              While effective in preventing stroke in patients with atrial fibrillation (AF), warfarin is limited by a narrow therapeutic profile, a need for lifelong coagulation monitoring, and multiple drug and diet interactions.
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                Author and article information

                Contributors
                + 49-9571-12-384 , jiangtao.yu@klinikum-lichtenfels.de , dr.jt.yu@gmail.com
                Journal
                Heart Vessels
                Heart Vessels
                Heart and Vessels
                Springer Japan (Tokyo )
                0910-8327
                1615-2573
                22 March 2018
                22 March 2018
                2018
                : 33
                : 9
                : 1068-1075
                Affiliations
                [1 ]Department of Cardiology, Helmut-G.-Walther-Klinikum, 96215 Lichtenfels, Germany
                [2 ]ISNI 0000 0004 1760 5735, GRID grid.64924.3d, Department of Cardiology, The Second Hospital, , Jilin University, ; Changchun, People’s Republic of China
                [3 ]ISNI 0000 0004 0368 8293, GRID grid.16821.3c, Department of Cardiology, Chest Hospital, School of Medicine, , Shanghai Jiaotong University, ; Shanghai, People’s Republic of China
                [4 ]Department of Cardiology, Luohu People’s Hospital, Shenzhen, People’s Republic of China
                [5 ]Department of Nephrology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany
                [6 ]Department of Anesthesiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany
                Article
                1157
                10.1007/s00380-018-1157-x
                6096728
                29564543
                © The Author(s) 2018

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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                © Springer Japan KK, part of Springer Nature 2018

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