noun
cardiovascular medicine; cardiology department
Refers to the medical specialty or the hospital department dealing with heart and blood vessel diseases.
父は循環器内科で診てもらっている。
My father is being treated at the cardiology department.
彼女は循環器内科の医師を目指している。
She aims to become a doctor specializing in cardiovascular medicine.
循環器科 is a broader term for the cardiovascular department, while 循環器内科 specifically refers to internal medicine for cardiovascular diseases, as opposed to surgery.
心臓血管外科 is the surgical counterpart, focusing on operations of the heart and blood vessels, whereas 循環器内科 handles non-surgical treatment.
Compound of 循環器 (circulatory organ) + 内科 (internal medicine). The term is a modern medical coinage.