Hi friend, Welcome to Health Care Magic The limited information provided is not sufficient enough to arrive at an appropriate conclusion... Probably she has haemo-pericardium? (Blood in the pericardial sac - covering of the heart), from the trauma... If so, it needs careful observation for pressure on the heart (Tamponade)... If the threat is impending, it needs immediate drainage / may be removing the pericardium, later, in a few... The treatment is based on diagnosis / diagnosis is based on examination and investigation / one needs exact diagnosis for exact suggestion... The treating doctor may suggest them depending on need, based on his assessment of the situation. Take care Wishing speedy recovery God bless Good luck