ברכה כלילית

Hebrew to English Medical Medical: Cardiology

In a hospitalization report, it talks about a person who had angina, and as a result had some stents implanted, but the person still had angina after the stents were in place.

He was sent for another catheterization, and the line that talks about that reads:

...ונשלח לצינתור לב אלקטיבי בשל ברכה כלילית, בפעולה לא נצפתה מחלה קשה

Is ברכה a typo? What is ברכה כלילת?