![]() AF is associated with higher risks of ischemic stroke, cardiovascular events, hospitalizations, and all-cause mortality ( 3, 4). It was reported the prevenance of AF in patients with implantable cardioverter defibrillators (ICDs) was as high as 25% ( 2). ![]() Decreased PA was an independent risk factor for cardiac death (HR = 3.358, 95% CI: 1.880–5.996, P < 0.001) and all-cause mortality (HR = 2.803, 95% CI:1.732–4.535, P < 0.001).Ĭonclusion: PA decrease after ICD/CRT-D implantation is associated with a higher incidence of new-onset AF, resulting in worsened outcomes in cardiac death and all-cause mortality.Ītrial fibrillation (AF) is a common cardiac arrhythmia with an increasing prevalence ( 1). Patients with decreased PA had 2-fold risks of new-onset AF (hazard ratio = 1.972, 95% confidence interval : 1.352–2.877, P < 0.001) as high as those with unchanged/increased PA. Per 1% decrease in PA was associated with 12.4, 18.3, and 14.3% higher risks of new-onset AF, cardiac death and all-cause mortality, regardless of different baseline characteristics. PA at 1 year after implantation was increased compared with PA at baseline (11.97 ± 5.83% vs. Results: Over a mean follow-up of 50.3 months, 124 new-onset AF events (36.2%), 61 cardiac deaths (17.8%), and 87 all-cause deaths (25.4%) were observed in 343 patients with ICD/CRT-D implantation. New-onset AF was defined as the first atrial high-rate episode ≥1% of the daily AF burden detected after implantation. Changes in PA were considered from baseline status to 1 year after implantation. Methods: Patients receiving ICD/CRT-D implantation from SUMMIT registry were retrospectively analyzed. ![]() The association of PA changes with new-onset atrial fibrillation (AF), cardiac death and all-cause mortality was unclear in patients at high risk of sudden cardiac death. 4Department of Cardiology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, Chinaīackground: Changes in physical activity (PA) after implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillators (CRT-D) implantation were unknown.3Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing, China. ![]() 2Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China.1Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.Why atrial fibrillation (AF or AFib) matters.(2016).Xuerong Sun 1 Shuang Zhao 1 * Keping Chen 1 Wei Hua 1 Yangang Su 2 Wei Xu 3 Fang Wang 4 Xiaohan Fan 1 Yan Dai 1 Zhimin Liu 1 Shu Zhang 1 *.What are the symptoms of atrial fibrillation(AFib or AF)? (2016).Symptoms of atrial fibrillation (AFib).You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. However, AFib can be long-lasting - even permanent. ![]() Having AFib also puts you at a higher risk for additional disorders that affect your heart’s rhythm.ĪFib can sometimes happen occasionally, and it may resolve on its own. Some people with AFib have no symptoms, while others experience a wide range of symptoms.ĪFib increases risk for heart-related disorders and stroke. These complications can occur from decreased pumping action and passive blood flow. While it can be managed by treatments, AFib can eventually lead to serious complications. In some cases, AFib may have no identifiable cause. AFib may also be brought on by untreated related conditions, such as high blood pressure. It’s the most common complication after heart surgery, according to the American Heart Association. These signals interfere with the ability of the upper chambers to contract in an organized way.ĪFib has several possible causes. It’s an electrical disorder that causes rapid electrical signals that may reach hundreds of beats per minute. AFib affects the upper chambers of the heart, called the atria. ![]()
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