Sinus arrhythmia

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Sinus arrhythmia
ECG showing sinus arrhythmia
Synonyms	Respiratory sinus arrhythmia
Pronounce	N/A
Specialty	N/A
Symptoms	Variation in heart rate with breathing
Complications	None
Onset	Childhood
Duration	Persistent
Types	N/A
Causes	Autonomic nervous system regulation
Risks	Normal physiological response
Diagnosis	Electrocardiogram
Differential diagnosis	Sinus tachycardia, Sinus bradycardia
Prevention	N/A
Treatment	None required
Medication	N/A
Prognosis	Excellent
Frequency	Common
Deaths	N/A

Sinus arrhythmia is a term used to describe the normal increase in heart rate that occurs during inspiration (when you breathe in). This is a natural process and can be more pronounced in children and athletes. Sinus arrhythmia is categorized into two types: Respiratory sinus arrhythmia and Non-respiratory sinus arrhythmia.

Types

Respiratory sinus arrhythmia

Respiratory sinus arrhythmia is a naturally occurring variation in heart rate that occurs during a breathing cycle. It is typically not a cause for concern.

Non-respiratory sinus arrhythmia

Non-respiratory sinus arrhythmia is less common and can be a sign of sickness, especially in older adults. It can be caused by conditions such as Sick sinus syndrome and Heart disease.

Causes

Sinus arrhythmia can be caused by various factors including:

• Breathing - Changes in pressure in the chest related to breathing can affect heart rate.
• Vagus nerve - This nerve plays a role in the body's automatic nervous system and can influence heart rate.
• Heart disease - Certain conditions can cause sinus arrhythmia.

Diagnosis

Sinus arrhythmia is typically diagnosed through a Electrocardiogram (ECG). This test can measure the electrical activity of the heart and can help identify any irregularities.

Treatment

In most cases, sinus arrhythmia does not require treatment. However, if it is caused by an underlying condition, such as heart disease, treatment will be necessary.

See also

• Heart arrhythmia
• Cardiology
• Electrocardiography

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