NCIt definition : Acute compression of the heart caused by increased intrapericardial pressure due to
the collection of blood or fluid in the pericardium from rupture of the heart, penetrating
trauma, or progressive effusion.;
Alternative definition : NICHD: Acute compression of the heart caused by increased intrapericardial pressure
due to the collection of blood or fluid in the pericardium.; CTCAE: A disorder characterized by an increase in intrapericardial pressure due to
the collection of blood or fluid in the pericardium.; FDA: Acute compression of the heart caused by increased intrapericardial pressure
due to the accumulation of blood or fluid in the pericardium from rupture of the heart
or great vessels, penetrating trauma, or progressive effusion.;