Atrial Fibrillation
Atrial fibrillation (AF)
is a common heart rhythm disorder characterized by an irregular and often rapid
heartbeat. In AF, the electrical signals in the upper chambers of the heart
(the atria) become chaotic, causing them to quiver instead of contracting normally.
This can lead to inefficient pumping of blood into the lower chambers of the
heart (the ventricles) and result in various symptoms and potential
complications.
Symptoms of atrial
fibrillation can vary from person to person. Some individuals may experience
noticeable symptoms, while others may be asymptomatic. Common signs and
symptoms of AF include:
Irregular heartbeat: The
most common symptom is a rapid, irregular, and fluttering sensation in the
chest. This irregular heartbeat can be constant or come and go.
Heart palpitations: Many
people with AF experience a rapid or pounding heartbeat, which may be
accompanied by chest discomfort.
Fatigue: Feeling tired or
exhausted, especially during physical activity, is a common symptom.
Shortness of breath: Some
individuals may have difficulty breathing or feel breathless, especially with
exertion.
Dizziness or
lightheadedness: AF can cause a sensation of dizziness, faintness, or a
spinning feeling.
Chest pain: While less
common, chest discomfort or chest pain can occur in some cases.
It is important to note
that AF can increase the risk of complications, including stroke, heart
failure, and other heart-related issues. Thus, it is crucial to seek medical
attention if you suspect you may have atrial fibrillation or experience any
concerning symptoms.
The causes of atrial
fibrillation are diverse and can include:
Age: The risk of
developing AF increases with age, particularly beyond 60 years.
High blood pressure:
Hypertension is a significant risk factor for AF.
Heart conditions: Various
heart conditions, such as coronary artery disease, heart valve problems,
congenital heart defects, or a history of heart surgery, can increase the
likelihood of AF.
Chronic conditions:
Certain chronic conditions, including obesity, diabetes, sleep apnea, and
thyroid disorders, are associated with a higher risk of AF.
Lifestyle factors:
Excessive alcohol consumption, smoking, drug abuse, and caffeine intake may
contribute to the development of AF.
Family history: A family
history of atrial fibrillation can increase the risk.
Other factors: Viral
infections, lung diseases, stress, and certain medications can also be
associated with AF.
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