Big data and atrial fibrillation – where we are?

2020 ◽  
Vol 3 (56) ◽  
pp. 27-29
Author(s):  
Michał M. Farkowski ◽  
Filip Morawski
Keyword(s):  
Atrial Fibrillation ◽  
Big Data ◽  
Data Acquisition ◽  
Diagnosis And Treatment ◽  
Volume Velocity ◽  
Basic Concepts

The term Big data defines set of data that is characterized by its volume, velocity and variety. The authors present basic concepts of Big Data acquisition and analysis together with contemporary examples of its utilization in diagnosis and treatment of atrial fibrillation.

Posterior circulation stroke: an easily overlooked complication of catheter ablation of atrial fibrillation

2020 ◽  
Vol 13 (8) ◽  
pp. e234661
Author(s):  
Tahir Nazir ◽  
Mohiuddin Sharief ◽  
James Farthing ◽  
Irfan M Ahmed
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Treatment Options ◽  
Posterior Circulation ◽  
Diagnosis And Treatment ◽  
Neurological Deficits ◽  
Cerebellar Infarction ◽  
Af Ablation ◽  
Posterior Circulation Stroke ◽  
Ventricular Response

Catheter ablation of atrial fibrillation (AF) has established itself as a safe and proven rhythm control strategy for selected patients with AF over the past decade. Thromboembolic complications of catheter ablation are becoming rare in anticoagulated patients with a risk of stroke reported as 0.3%. A particular challenge is posed by clinical presentation due to ischaemic stroke involving the posterior circulation following catheter ablation because of its substantial differences from the carotid territory stroke, making the timely diagnosis and treatment very difficult. It is crucial to keep an index of clinical suspicion in patients presenting with neurological deficits related to vertebrobasilar circulation following ablation. We describe the case of a man who presented with dizziness and palpitations after radiofrequency catheter ablation of AF. He was found to be in AF with a rapid ventricular response. His dizziness was initially attributed to the cardiac dysrhythmia. As his symptoms continued despite heart rate control, he underwent further investigations and was eventually diagnosed with a posterior circulation stroke resulting in left cerebellar infarction. He was treated with antiplatelet therapy and improved significantly over the following few days. We review and present an up-to-date brief literature review on the complications of catheter ablation of AF and describe pathophysiology, clinical features, diagnosis and treatment options for posterior circulation stroke after AF ablation. This case aims to raise awareness among clinicians about posterior circulation stroke after AF ablation.

scholarly journals Atrial fibrillation: review of the European Society of Cardiology guidelines and national guidelines 2020

2020 ◽  
pp. 21-29
Author(s):  
Natalia S. Mescherina ◽  
Elena M. Khardikova ◽  
Igor A. Saraev
Keyword(s):  
Atrial Fibrillation ◽  
European Society ◽  
Stroke Risk ◽  
Diagnosis And Treatment ◽  
Russian Society ◽  
Thromboembolic Complications ◽  
National Guidelines ◽  
European Society Of Cardiology ◽  
Risk Symptom

The review presents the key provisions of the recommendations of the Russian society of cardiology and the guidelines of the European society of cardiology for the diagnosis and treatment of atrial fibrillation (AF), updated in 2020. The recommendations clearly state the requirements for atrial fibrillation diagnosis verification, and propose an approach to the formation of a complex characteristic of the disease in four positions, which is designated as 4S-AF (Stroke risk, Symptom severity, Severity of AF burden, Substrate severity). The authors analyzed the strategy "CC To ABC" (Confirm AF, Characterize AF, Treat AF: the ABC pathway) proposed by European experts, the issues of modern terminology and requirements for verifying the diagnosis of AF, complex characteristics of the disease and stratification of the risk of stroke and bleeding, a new ABC approach in the treatment of AF, where A is anticoagulant prevention of thromboembolic complications, B is the control of symptoms of the disease and C is the detection and treatment of comorbid pathology. The General principles that have changed in comparison with the previous versions of guidelines of 2016 on the initiation and tactics of anticoagulant therapy, pharmacological and non-drug cardioversion, catheter ablation in patients with AF, affecting the prognosis and outcomes in patients with AF, are outlined. It is emphasized that the pattern of atrial fibrillation (first diagnosed, paroxysmal, persistent, long-term persistent, permanent) should not determine the indications for anticoagulant prevention. The solution to this issue is determined by the level of risk according to the CHA2DS2-VASc scale. The introduction of the considered methods of diagnosis and treatment of AF into clinical practice will optimize the burden on the health care system and reduce the costs associated with the burden of AF.

Big Data Analytics With Service-Oriented Architecture

2017 ◽  
pp. 216-234 ◽  
Author(s):  
Triparna Mukherjee ◽  
Asoke Nath
Keyword(s):  
Big Data ◽  
Service Oriented Architecture ◽  
Big Data Analytics ◽  
Dominant Mode ◽  
Volume Velocity ◽  
It Systems ◽  
Trading Partners ◽  
Integration Of Services ◽  
Service Oriented ◽  
Data Explosion

This chapter focuses on Big Data and its relation with Service-Oriented Architecture. We start with the introduction to Big Data Trends in recent times, how data explosion is not only faced by web and retail networks but also the enterprises. The notorious “V's” – Variety, volume, velocity and value can cause a lot of trouble. We emphasize on the fact that Big Data is much more than just size, the problem that we face today is neither the amount of data that is created nor its consumption, but the analysis of all those data. In our next step, we describe what service-oriented architecture is and how SOA can efficiently handle the increasingly massive amount of transactions. Next, we focus on the main purpose of SOA here is to meaningfully interoperate, trade, and reuse data between IT systems and trading partners. Using this Big Data scenario, we investigate the integration of Services with new capabilities of Enterprise Architectures and Management. This has had varying success but it remains the dominant mode for data integration as data can be managed with higher flexibility.

Troubleshooting ICDs

2018 ◽  
pp. 245-284
Author(s):  
Timothy Betts ◽  
Julian Ormerod
Keyword(s):  
Atrial Fibrillation ◽  
Diagnosis And Treatment ◽  
Battery Life ◽  
Implantable Cardioverter Defibrillators ◽  
Common Presentation ◽  
Problem Diagnosis ◽  
Life Problems ◽  
Cardioverter Defibrillators ◽  
Management Issues

This chapter covers the causes of inappropriate implantable cardioverter defibrillators (ICD) therapies, and then covers each response in detail. Breaking down the response by key information required, and the most common presentation of each problem, diagnosis and treatment are discussed in turn. The chapter covers tachycardias (atrial, supraventricular, ventricular, etc.), atrial fibrillation or flutter, committed shocks, undersensing, and oversensing. Mechanical issues that may occur at follow up, such as lead damage or battery life problems, are covered. Finally, problems to date and management issues are described.

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