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Atrial Fibrillation (Part 1): Pathophysiology, Risk Factors, and Therapeutic Basis

Fatima Dumas Cintra1, Marcio Jansen de Oliveira Figueiredo2

  • 1Universidade Federal de São Paulo, São Paulo, SP - Brasil.

Arquivos Brasileiros De Cardiologia
|February 10, 2021
PubMed

Insights

Atrial fibrillation (AF), a common heart rhythm disorder, affects older adults and is linked to serious health issues. Managing AF involves lifestyle changes, risk factor treatment, and coordinated care for better outcomes.

Area of Science:

  • Cardiology
  • Public Health
  • Geriatrics

Background:

  • Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia, disproportionately affecting aging populations.
  • AF poses significant clinical challenges, including increased risk of thromboembolism, hospitalization, and mortality.
  • The pathophysiology of AF is multifactorial, involving hemodynamic, structural, electrophysiological, and autonomic factors.

Purpose of the Study:

  • To review the epidemiology, risk factors, and current therapeutic strategies for atrial fibrillation.
  • To highlight the importance of lifestyle modifications and integrated interprofessional team care in managing AF.

Main Methods:

  • Literature review of epidemiological studies, clinical trials, and expert consensus reports on atrial fibrillation.
  • Analysis of established and emerging risk factors for AF development and recurrence.
  • Synthesis of current treatment guidelines encompassing lifestyle changes, risk factor management, and pharmacological/non-pharmacological interventions.

Main Results:

  • Hypertension, diabetes, heart failure, and valvular disease are established independent predictors of AF.
  • Emerging risk factors include sedentary behavior, obesity, sleep disorders, tobacco use, and excessive alcohol consumption.
  • Improved quality of life and adherence to treatment strategies are associated with reduced AF recurrence.

Conclusions:

  • Comprehensive management of atrial fibrillation requires addressing a wide array of risk factors and patient habits.
  • The four pillars of AF management include lifestyle modification, thromboembolism prevention, rate control, and rhythm control.
  • Integrated, interprofessional team-based care is crucial for optimizing clinical outcomes in patients with atrial fibrillation.

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