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Genetic testing may be performed to look for carriers, as well as to screen relatives of people who have cystic fibrosis.

The types of angina are stable, unstable, microvascular, and variant. The types vary based on their severity or cause.

The body’s muscles and nervous system help control your breathing. The lungs are like sponges; they cannot move on their own. Muscles in your chest and abdomen contract, or tighten, to create space in your lungs for air to flow in. The muscles then relax, causing the space in the chest to get smaller and squeeze the air back out. Your breathing usually does not require any thought, because it is controlled by the autonomic nervous system, also called the involuntary nervous system.

Having a stent placed is a minimally invasive procedure, meaning it is not a major surgery. Stents for coronary arteries and carotid arteries are placed in similar ways. A stent graft is placed to treat an aneurysm in a procedure called aortic aneurysm repair. Airway stents are placed in a procedure that helps open airways in the lung. For most stents, you will be given medicine to make you sleep during the procedure. The stent procedure may be planned ahead of time or it may be performed in an emergency situation.

Ventricular fibrillation, a type of arrhythmia, causes most sudden cardiac arrests. Other problems with the heart's electrical system, including diseases or conditions that can cause the electrical problems—such as coronary heart disease, physical stress, certain inherited disorders, and structural changes in the heart—also can lead to sudden cardiac arrest.

Many people who have conduction disorders, such as first-degree AV block, may have no obvious signs or symptoms. Others may have signs and symptoms that occur in specific situations, such as when you experience physical or emotional stress or when you sleep. Conduction disorders can lead to life-threatening arrhythmias if undiagnosed or untreated.

Las terapias genéticas pueden utilizar métodos de transferencia de genes o edición genómica para modificar el ADN de las células de un paciente, con el objetivo de prevenir o tratar una afección.

Treatment for iron-deficiency anemia will depend on its cause and severity. Treatments may include iron supplements, red blood cell transfusions, changes in your eating pattern, or procedures like endoscopy to stop bleeding.

Congenital heart defects happen because the heart does not develop normally while the baby is growing in the womb. Doctors often do not know why congenital heart defects occur. Researchers do know that genetics can sometimes play a role.

Mild cases of myocarditis and pericarditis may go away without treatment. To treat heart inflammation, your doctor may recommend medicines to fight the infection or control the inflammation, and possibly surgery for certain cases.