“…If mediastinal enlargement or a considerable amount of pericardial effusion was evident, TTE was performed to clarify the diagnosis and to assess myocardial performance, valve functions, and integrity of the atrioventricular septum. Burack et al [8] noted that unstable patients with mediastinal injuries require surgery, but in stable cases, TTE and chest CT are effective screening tools. All stable patients in the current series eventually underwent surgical exploration.…”