Atrial fibrillation and stroke: a practical guide

Jonathan Gordon Best1, Robert Bell2, Mohammed Haque3

  • 1Stroke Research Centre, University College London Queen Square Institute of Neurology, London, UK.

Practical Neurology
|March 4, 2019
PubMed

Insights

Atrial fibrillation increases stroke risk, but anticoagulation decisions are complex. New direct oral anticoagulants offer improved stroke prevention but require careful management to balance bleeding risks.

Area of Science:

  • Cardiology
  • Neurology
  • Pharmacology

Background:

  • Atrial fibrillation is a primary cause of ischemic stroke.
  • Anticoagulation is crucial for preventing cardioembolic stroke.
  • Balancing stroke risk and bleeding risk (especially intracranial hemorrhage) complicates anticoagulation decisions.

Purpose of the Study:

  • To provide an overview of current atrial fibrillation diagnosis and management.
  • To discuss the evidence base for anticoagulation in atrial fibrillation.
  • To highlight challenges and future directions in atrial fibrillation care.

Main Methods:

  • Review of contemporary diagnosis and management strategies for atrial fibrillation.
  • Analysis of the evidence base supporting anticoagulation therapies.
  • Discussion of clinical decision-making in anticoagulation therapy.

Main Results:

  • Direct oral anticoagulants (DOACs) have become widely available, improving stroke care.
  • DOACs present new challenges in managing atrial fibrillation patients.
  • Interdisciplinary collaboration is essential for effective atrial fibrillation management.

Conclusions:

  • Contemporary management of atrial fibrillation requires balancing stroke and bleeding risks.
  • Advances in anticoagulation, particularly DOACs, necessitate updated clinical approaches.
  • Ongoing research is vital for refining future atrial fibrillation treatment strategies.

Keywords:
stroke

Related Concept Videos

Amyloid Fibrils03:03

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining,...
11.9K
Amyloid Fibrils03:03

Amyloid Fibrils

6.4K
Fibril-associated Collagen01:11

Fibril-associated Collagen

Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
3.4K
Characteristics of Practical Op Amps01:16

Characteristics of Practical Op Amps

A difference amplifier, a crucial component in numerous electronic devices, ideally amplifies only the difference-mode signal, which is the difference between two input signals. However, in practical circuits, the output voltage depends on both the differential gain and the common-mode gain.
The ratio of differential gain to the common-mode gain is defined as the common-mode rejection ratio (CMRR). This ratio quantifies the ability of operational amplifiers (op-amps) to reject common-mode...
859
Theoretical Foundations of Nursing Practice01:30

Theoretical Foundations of Nursing Practice

Theories play an essential role in organizing patient care. Theories refer to a proposed or followed belief, policy, or procedure that is the basis for action. Nursing theories are knowledge-based concepts that guide nurses' actions, influence nursing education and practice, and allow nurses to care for their patients.
Theories provide a perspective to assess patients' conditions and organize data and methods. They also assist in analyzing and interpreting information. They represent a...
17.4K
Equivalent Circuits for Practical Transformers01:28

Equivalent Circuits for Practical Transformers

The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
1.4K