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Atrioventricular Block
Atrioventricular Block
by Alike Medical Team ∙ Updated on June 13, 2023
General
Atrioventricular Block, or an AV block is when there is a problem in the electrical signaling of the heart that goes through the atria to the ventricles. These signals pass through a bundle of cells called the AV node. In AV block, the signals do not pass to the AV node, resulting in dysfunction of the heart- skipping beats, slower heart rate and ledd blood is pumped out. There are three types of AV block; In first degree AV block , which is the mildest type, the heart beats slower. Second degree AV block is divided into two categories- type 1 and type 2. In type 1, the electrical signals get slower until the heart skips a bit. In type 2, some signals do not reach the ventricle, causing irregular pulse. In the third degree AV block, the signaling is completely blocked, and the ventricle becomes the heart pacemaker. AV block may lead to heart failure, arrhythmia, heart attack and sudden cardiac arrest.
9 people with Atrioventricular Block
Learn from others who are experiencing Atrioventricular Block.
Signs & symptoms
Symptoms of heart block include faiting, dizzined, chest pain, fatigue, shortness of breath, palpitations, rapid breathing, and nausea. Some people with first degree AV block will not suffer any symptoms.
Diagnosis
Diagnosis of AV block is based upon findings from physical examination, medical history and tests such as ECG, loop recorder, and electrophysiology study.
Treatment
Treatment depends on the type of AV block, its location and severity and may include a pacemaker.
Note
☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.
National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention
☝ All information has been reviewed by certified physicians from Alike
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