Heart Diseases in the Arteries or Veins
The arteries and veins are blood vessels attached to the heart. The coronary arteries supply oxygen and nutrient-rich blood to the heart muscle; the coronary veins remove waste products from the heart muscle. Types of heart diseases that affect the coronary arteries and veins include:
- Angina pectoris, or just angina, including:
Heart Diseases in the Electrical System
The electrical system within the heart is responsible for ensuring that the heart beats correctly so that blood can be transported to the lungs and the rest of the body. To do this, an electrical signal spreads out over the heart muscle through the electrical system. They can cause a fast, slow, or irregular heartbeat, called an arrhythmia.
Examples of arrhythmias include:
- Sinus tachycardia
- Sinus bradycardia
- Atrial fibrillation
- Heart block, including first-degree AV block, second-degree AV block, and complete AV block (third-degree heart block)
- Bundle branch block, including left bundle branch block and right bundle branch block
- Premature atrial contractions (PAC), also known as premature atrial complexes
- Atrial flutter
- Multifocal atrial tachycardia
- Supraventricular tachycardia (SVT), also known as atrial tachycardia
- Paroxysmal supraventricular tachycardia (PSVT), also known as paroxysmal atrial tachycardia
- Wolff-Parkinson-White syndrome (WPW)
- Premature ventricular contractions (PVC), also known as premature ventricular complexes
- Ventricular tachycardia
- Ventricular fibrillation
- Long QT syndrome
- Brugada syndrome, also known as sudden unexplained nocturnal death syndrome (SUNDS).