What does cardiologist mean?
A cardiologist is a medical doctor who specializes in the diagnosis, treatment, and prevention of diseases affecting the heart and blood vessels, collectively known as the cardiovascular system. Cardiologists evaluate conditions such as coronary artery disease, heart failure, arrhythmias, hypertension, and congenital heart defects, using tools like echocardiograms, stress tests, electrocardiograms, and cardiac catheterization to assess how well the heart functions. Patients are usually referred to a cardiologist by a primary care physician when symptoms such as chest pain, shortness of breath, or irregular heartbeat suggest possible heart disease. Within the field there are subspecialties, including interventional cardiology, which involves procedures such as angioplasty and stenting, and electrophysiology, which focuses on the heart's electrical rhythms. It is worth noting that cardiologists generally do not perform open-heart surgery; that work belongs to cardiothoracic surgeons. The word derives from the Greek kardia, meaning heart.
nounA physician who specializes in diagnosing and treating diseases and disorders of the heart and blood vessels.
- A physician who specializes in the diagnosis and treatment of diseases of the heart and blood vessels.
"After the abnormal stress test results, her GP referred her to a cardiologist for further evaluation."
"The cardiologist recommended a cardiac catheterization to investigate the chest pain."
"As a leading interventional cardiologist, he has performed thousands of angioplasties over his career."
Regular plural; used when referring to multiple specialists in the field.
"The conference brought together cardiologists from more than thirty countries."
The word cardiologist packs three Greek roots into one job title: kardia (heart), -logy (study), and -ist — literally 'a person who studies the heart.'
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cardiologist
The term cardiologist combines the Greek kardia ('heart') with the suffixes -logy ('study of') from Greek logos ('word, reason') and -ist, denoting a practitioner. 'Cardiology' as a medical discipline developed during the nineteenth century, and the agent noun 'cardiologist' followed once the specialty became established. The same Greek root gives English words such as cardiac, myocardium, and electrocardiogram.
How cardiologist is actually used
A formal, professional term used in medical contexts. Note that a cardiologist is distinct from a cardiac surgeon: cardiologists diagnose and manage heart disease and may perform procedures such as catheterizations, but open-heart surgery is performed by cardiothoracic surgeons.
Easily confused with cardiologist
A cardiograph is an instrument that records the heart's activity, whereas a cardiologist is a medical specialist who treats heart conditions.
A hematologist specializes in blood disorders, while a cardiologist specializes in the heart and blood vessels.