Introduction:

Atrioventricular block second-degree (AV block Type II) is a type of abnormal heart rhythm that affects the electrical signals that control the heartbeat. In this article, we will define AV block Type II, discuss its types, causes, symptoms, diagnosis, and treatment options.

Definition:

AV block Type II is a type of atrioventricular block that occurs when some of the electrical signals from the atria to the ventricles are blocked, resulting in an irregular heartbeat.

Types:

AV block Type II is further classified into two types:

1. Mobitz type I (Wenckebach): This type of AV block is characterized by progressive lengthening of the delay in the electrical signal until a beat is missed.
2. Mobitz type II: This type of AV block is characterized by a random, intermittent absence of beats.

Causes:

AV block Type II can be caused by various factors, including:

• Age-related degeneration of the electrical conduction system
• Heart attack
• Congenital heart defects
• Certain medications
• Infection
• Electrolyte imbalances
• Sleep apnea
• Lyme disease

Symptoms:

The symptoms of AV block Type II can vary depending on the severity of the condition. Some common symptoms include:

• Fainting or near-fainting
• Shortness of breath
• Fatigue
• Chest pain
• Dizziness
• Palpitations

Diagnosis:

Diagnosis of AV block Type II may involve a combination of medical history, physical examination, and diagnostic tests such as electrocardiogram (ECG), Holter monitoring, and electrophysiology studies.

Treatment:

The treatment for AV block Type II depends on the severity of the condition. Treatment options may include medication to control heart rate and rhythm, a pacemaker to regulate the heartbeat, or surgery to correct underlying heart problems.

Conclusion:

AV block Type II is a type of abnormal heart rhythm that affects the electrical signals that control the heartbeat. It is further classified into two types, and treatment options depend on the severity of the condition.

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