Background:
We present two cases of pericardiocentesis due to anorexia nervosa in young women.

Material and methods:
A twenty-year-old and a twenty-four-year-old female with a history of anorexia nervosa were admitted to the cardiac surgery department due to pericardial effusions.

Results:
Both cases needed urgent pericardiectomy. Our patients did not show any signs of acute heart failure during the hospitalization. Due to their primary diagnosis, they needed psychological support and their food intake required monitoring.

Conclusions:
Pericardial effusions are common in adolescent AN patients, and echocardiography monitoring is necessary to prevent the progression of acute cardiac tamponade.