Cardiology is the Study and Treatment of Disorders of the Heart and the Blood Vessels.
What is cardiology?
Cardiology is a branch of internal medicine. A person with heart disease or cardiovascular disease may be referred to a cardiologist. A cardiologist specializes in diagnosing and treating diseases of the cardiovascular system. The cardiologist will carry out tests, and they may perform some procedures, such as heart catheterizations, angioplasty, or inserting a pacemaker.
A cardiologist is not the same as a cardiac surgeon. A cardiac surgeon opens the chest and performs heart surgery Heart Disease relates specifically to the heart, while cardiovascular disease affects the heart, the blood vessels, or both.
When would I need a cardiologist?
Cardiology deals with heart health.
If a person has symptoms of a heart condition, their physician may refer them to a cardiologist.
Symptoms that can indicate a heart problem include:
- shortness of breath
- dizziness
- chest pains
- changes in heart rate or rhythm
- high blood pressure
A cardiologist can carry out tests for a heart murmur or an abnormal heart rhythm.
They often treat patients who have had a Heart Attack, Heart Failure, or other heart problems. They help make decisions about heart surgery, heart catheterization, and angioplasty and stenting.
A cardiologist can carry out tests for a heart murmur or an abnormal heart rhythm.
They often treat patients who have had a Heart Attack, Heart Failure, or other heart problems. They help make decisions about heart surgery, heart catheterization, and angioplasty and stenting.
Heart diseases that a cardiologist can help with include
The cardiologist can give advice about preventing heart disease.
A person may need to see a cardiologist even without symptoms, if they have a family history of heart disease or high cholesterol, if they are or have been a smoker, if they have diabetes, or if they are starting a new exercise program.
A woman who has had Pre-Eclampsia may be at higher risk of heart problems in a later pregnancy or during the menopause.
What does cardiology involve?
A cardiologist will review a patient’s medical history and carry out a physical examination.
They may check the person’s weight, heart, lungs, blood pressure, and blood vessels, and carry out some tests.
An interventional cardiologist may carry out procedures such as angioplasties, stenting, valvuloplasties, congenital heart defect corrections, and coronary thrombectomies.
Tests
They may also carry out or order tests as listed below:
The equipment in a cath lab allows the doctor to see the state of the heart.
Electrocardiogram (ECG or EKG)
This records the electrical activity of the heart.
Ambulatory ECG
This records heart rhythms while the person carries out exercise or their regular activities. Small metal electrodes are stuck on to the chest, and these are connected by wires to a Holter monitor, which records the rhythms.
An Exercise Test, or Stress Test
This shows the changes of heart rhythm when resting and exercising. It measures the performance and limitations of the heart.
Echocardiogram
This provides an Ultrasound picture that shows the structure of the heart chambers and surrounding areas, and it can show how well the heart is working.
Echocardiography can measure how well the heart is pumping blood, known as cardiac output. It can detect inflammation around the heart, known as pericarditis. It can also identify structural abnormalities or infections of the heart valves.
Cardiac Catheterization
A small tube in or near the heart collects data and may help relieve a blockage. It can take pictures and check the functioning of the heart and the electrical system. Catheter-based techniques with fluoroscopy can be used to treat congenital cardiac, valvular, and coronary artery diseases.
Nuclear Cardiology
Nuclear imaging techniques use radioactive materials to study cardiovascular disorders and diseases in a noninvasive way.
Examples are infarction imaging, single-photon-emission computed tomography (SPECT), planar imaging, and myocardial perfusion imaging.
Cardiac Electrophysiology
Cardiac electrophysiology is a subspecialty of cardiology. The physician looks at how electric currents inside the heart muscle tissue work, how the current spreads, and what the pattern of the currents mean.
The cardiologist may recommend a pacemaker.
Electrophysiology study (EPS) of the heart: in this test, a catheter is threaded into a vein at the top of the leg. Guided under fluoroscopy, it makes its way to the heart. The catheter measures the electrical signals within the heart.
An EPS of the heart can
Help to Show What is Causing Symptoms
Help Decide if a Patient Needs a Pacemaker
Help Decide the Best Treatment for Patients with Arrhythmia, or Abnormal Heart Rhythm
Determine How Likely a Patient is to Experience Tachycardia or an Accelerated Heart Beat
A cardiac electrophysiologist can provide treatment for
Abnormal Rhythms including Cardiac Ablation
Implantable Cardioverter Defibrillators , or Pacemakers.