Complete Medical Guide and Prevention for Heart Diseases Volume XIII; Heart Block
Nonfiction, Health & Well Being, Health, Ailments & Diseases, Heart, Health Care Issues
| Author: | Medical Professionals | ISBN: | 1230000037138 |
| Publisher: | MedHealth | Publication: | December 6, 2012 |
| Imprint: | Language: | English |
| Author: | Medical Professionals |
| ISBN: | 1230000037138 |
| Publisher: | MedHealth |
| Publication: | December 6, 2012 |
| Imprint: | |
| Language: | English |
A heart block is a disease in the electrical system of the heart. This is opposed to coronary artery disease, which is disease of the blood vessels of the heart. While coronary artery disease can cause angina (chest pain) or myocardial infarction (heart attack), heart block can cause lightheadedness, syncope (fainting), and palpitations.
A heart block can be a blockage at any level of the electrical conduction system of the heart (shown in the diagram on the right).
Blocks that occur within the sinoatrial node (SA node) are described as SA nodal blocks.
Blocks that occur within the atrioventricular node (AV node) are described as AV nodal blocks.
Blocks that occur below the AV node are known as infra-Hisian blocks (named after the bundle of His).
Blocks that occur within the left or right bundle branches are known as bundle branch blocks.
Blocks that occur within the fascicles of the left bundle branch are known as hemiblocks.
Clinically speaking, most of the important heart blocks are AV nodal blocks and infra-Hisian blocks.
A heart block is a disease in the electrical system of the heart. This is opposed to coronary artery disease, which is disease of the blood vessels of the heart. While coronary artery disease can cause angina (chest pain) or myocardial infarction (heart attack), heart block can cause lightheadedness, syncope (fainting), and palpitations.
A heart block can be a blockage at any level of the electrical conduction system of the heart (shown in the diagram on the right).
Blocks that occur within the sinoatrial node (SA node) are described as SA nodal blocks.
Blocks that occur within the atrioventricular node (AV node) are described as AV nodal blocks.
Blocks that occur below the AV node are known as infra-Hisian blocks (named after the bundle of His).
Blocks that occur within the left or right bundle branches are known as bundle branch blocks.
Blocks that occur within the fascicles of the left bundle branch are known as hemiblocks.
Clinically speaking, most of the important heart blocks are AV nodal blocks and infra-Hisian blocks.
