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Digoxin use is associated with increased risk of stroke in patients with non-valvular atrial fibrillation — a nationwide population-based cohort study
Atrial fibrillation (AF) is associated with increased risk of morbidity and mortality. Digoxin is often used as a rate control agent in AF patients, particularly in those with systolic heart failure. Although digoxin use in AF patients can reduce heart failure symptoms, increase exercise capacity and decrease hospitalizations , unfavorable effects on long-term outcomes have been reported . In the Atrial Fibrillation Follow-up Investigation of Rhythm Management (AFFIRM) study, a post-hoc analysis showed a higher rate of mortality in patients treated with digitalis medication . A study of the “Registry of Information and K...
Source: International Journal of Cardiology - September 23, 2013 Category: Cardiology Authors: Shih-Sheng Chang, Kuan-Cheng Chang, Yu-Chen Wang, Chih-Hsin Muo, Pei-Ying Pai, Chi-Bin Chang, Chi-Yuan Li, Fung-Chang Sung Tags: Online Letters to the Editor Source Type: research

Recurrent stroke and myocardial infarction in a young woman with severe osteoporosis and hyperparathyroidism
We have taken great interest in the recently published article entitled “ Effect of calcium or vitamin D supplementation on vascular outcomes: A meta-analysis of randomized controlled trial” . Likewise, since parathormone (PTH) is a vasoactive peptide, we, herein, wish to draw attention to the fact that primary hyperparathyroidism (pHPT) can –as well– be in association with increased risk of cardiovascular diseases (i.e. myocardial infarction (MI), heart failure, thrombosis or cardioembolism, hypertension), stroke and osteoporosis . In this regard, we exemplify the clinical scenario of one of our pertinent patients.
Source: International Journal of Cardiology - January 21, 2014 Category: Cardiology Authors: Murat Kara, Levent Özçakar, Hatice Gözde Sümer, Timur Ekiz, Sibel Özbudak Demir, Ayşen Akıncı Tags: Online Letters to the Editor Source Type: research

Epigallocatechin-3-gallate modulates arrhythmogenic activity and calcium homeostasis of left atrium
Atrial fibrillation (AF) is the commonest sustained arrhythmia, and increases the risk of stroke, heart failure, and mortality. Calcium (Ca2+) overload and oxidative stress are thought to participate in the pathogenesis of AF. Epigallocatechin-3-gallate (EGCG) has an antioxidative effect and been shown to be beneficial in promoting cardiovascular health. However, it is not clear if EGCG directly modulates the electrophysiological characteristics and Ca2+ homeostasis of the left atrium (LA).
Source: International Journal of Cardiology - January 13, 2017 Category: Cardiology Authors: Jun-Hei Chang, Shih-Lin Chang, Po-Da Hong, Ping-Nan Chen, Chih-Hsueng Hsu, Yen-Yu Lu, Yao-Chang Chen Source Type: research