Meaning of the word "heart surgery" in English

What does "heart surgery" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

heart surgery

US /ˈhɑːrt ˌsɜːr.dʒə.ri/
UK /ˈhɑːt ˌsɜː.dʒə.ri/

Noun

medical operations performed on the heart, especially to repair or replace damaged parts

Example:
He underwent successful heart surgery last month.
Advances in heart surgery have saved countless lives.