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Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
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Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
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Exercise and Atrial Fibrillation: Current Evidence, Knowledge Gaps, and Future Directions.

Hoang Nhat Pham1,2, Mahmoud H Abdelnabi3, Ramzi Ibrahim3

  • 1Department of Medicine, University of Arizona, Tucson, AZ 85721, USA.

Reviews in Cardiovascular Medicine
|August 8, 2025
PubMed
Summary

Physical exercise impacts atrial fibrillation (AF) risk in a complex, U-shaped manner. Moderate exercise benefits AF management, while excessive high-intensity exercise may increase risk, especially in athletes.

Keywords:
AF burdenatrial fibrillation (AF)cardiorespiratory fitness (CRF)cardiovascular riskendurance exerciseexercise intensitymoderate-intensity exercise

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Area of Science:

  • Cardiology
  • Sports Medicine
  • Exercise Physiology

Background:

  • Atrial fibrillation (AF) is a prevalent cardiac arrhythmia causing significant morbidity and mortality.
  • The link between physical exercise and AF risk is complex, exhibiting both protective and detrimental effects.
  • A U-shaped association exists between exercise intensity and AF risk.

Purpose of the Study:

  • To review current evidence on exercise's effects on atrial fibrillation.
  • To identify knowledge gaps in the exercise-AF relationship.
  • To propose future research directions in this field.

Main Methods:

  • Systematic literature review of studies investigating exercise and AF.
  • Analysis of evidence on moderate-intensity versus high-intensity exercise impacts.
  • Examination of proposed mechanisms linking exercise to AF.

Main Results:

  • Moderate exercise demonstrates benefits for AF management by improving cardiovascular health and reducing atrial fibrosis.
  • Excessive high-intensity endurance exercise may elevate AF risk, particularly in young athletes, through mechanisms like atrial remodeling and inflammation.
  • Current guidelines advocate for moderate-intensity aerobic activity in AF management.

Conclusions:

  • Exercise is a crucial lifestyle intervention for AF, but intensity matters.
  • Understanding the nuanced effects of different exercise intensities is vital for optimizing AF patient outcomes.
  • Further research is needed to elucidate the precise mechanisms and refine exercise recommendations for AF.