Results 41 to 50 of about 601,314 (362)
On a Possible Approach to Risk Prediction of Recurrence of Atrial Fibrillation аfter Catheter Ablation According to Data from the Pre-procedure Period [PDF]
International Journal Bioautomation, 2022 The aim of the study is to identify and evaluate predictors of recurrent paroxysms of atrial fibrillation (AF) paroxysms based on data from the preprocedural period among personal indices, history, comorbidities, ultrasound examination, and morphological
Iskren Garvanski +4 more
doaj +1 more source
Prolonged PR interval, first-degree heart block and adverse cardiovascular outcomes: a systematic review and meta-analysis [PDF]
, 2016 Objective: First-degree atrioventricular block is frequently encountered in clinical practice and is generally considered a benign process. However, there is emerging evidence that prolonged PR interval may be associated with adverse outcomes. This study
Barker, Diane +11 more
core +1 more source
Isotropic-nematic phase transition in amyloid fibrilization [PDF]
Physical Review E 80, 031902 (2009), 2009 We carry out a theoretical study on the isotropic-nematic phase transition and phase separation in amyloid fibril solutions. Borrowing the thermodynamic model employed in the study of cylindrical micelles, we investigate the variations in the fibril length distribution and phase behavior with respect to changes in the protein concentration, fibril's ...
arxiv +1 more source
Evaluating cardiac anatomy as a predictor for success after pulmonary vein isolation for the treatment of atrial fibrillation [PDF]
, 2020 Introduction: Atrial Fibrillation is a condition characterized by the production of ectopic beats by the heart. One common treatment for Atrial Fibrillation is catheter guided pulmonary vein isolation (PVI), however this treatment is only effective in ...
Halpern, Ethan +2 more
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Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]
, 2012 This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core +1 more source
ABC of Atrial Fibrillation: CARDIOVERSION OF ATRIAL FIBRILLATION [PDF]
BMJ, 1996 Summary Cardioversion to sinus rhythm should be considered for all suitable patients in atrial fibrillation In the short term both pharmacological and electrical cardioversion restore sinus rhythm Prophylactic treatment with antiarrhythmic drugs is advisable after cardioversion in high risk patients in view of the high relapse rate Anticoagulants ...
Gregory Y.H. Lip +2 more
openaire +3 more sources
Frontiers in Cardiovascular MedicineBackgroundCatheter ablation (CA) for symptomatic atrial fibrillation (AF) offers the best outcomes for patients. Despite the benefits of CA, a significant proportion of patients suffer a recurrence; hence, there is scope to potentially improve outcomes ...
N. Fitzpatrick +14 more
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Scientific Reports, 2023 The Covid-19 pandemic during its early phases posed significant psychological threats particularly for medical frontline personal. It is unclear whether the medical workforce with the passage of time has adapted to these threats or have generalized to ...
Karl-Heinz Ladwig +4 more
doaj +1 more source
Unraveling capillary interaction and viscoelastic response in atomic force microscopy of hydrated collagen fibrils [PDF]
Nanoscale 9 (2017) 1244-1256, 2019 The mechanical properties of collagen fibrils depend on the amount and the distribution of water molecules within the fibrils. Here, we use atomic force microscopy (AFM) to study the effect of hydration on the viscoelastic properties of reconstituted type I collagen fibrils in air with controlled relative humidity. With the same AFM tip, we investigate
arxiv +1 more source
The American Journal of Cardiology, 1971 Ventricular fibrillation is the most common mechanism of sudden unexpected cardiac death in persons with asymptomatic or symptomatic coronary artery disease. The electrophysiologic mechanisms reviewed in this article include: automaticity of pacemaker fibers, transformation of nonpacemaker into pacemaker fibers, "injury" currents and reentry.
openaire +3 more sources