Snapshot A 19-year-old man is stabbed in the left side of his chest. His blood pressure on presentation is 90/60 mmHg with a pulse of 130/min. On physical exam, he has muffled heart sounds and distended jugular veins. Upon inspiration, his blood pressure drops to 75/55 mmHg. His extremities are cool and clammy. He is immediately rushed to the operating room. Introduction Clinical definition login to view 1 more bullet Epidemiology login to view 8 more bullets Etiology login to view 3 more bullets Pathoanatomy login to view 3 more bullets Pathogenesis login to view 8 more bullets Associated conditions login to view 2 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 3 more bullets Physical exam login to view 15 more bullets Imaging Echocardiography login to view 8 more bullets Radiography login to view 7 more bullets Studies Electrocardiogram (ECG) login to view 7 more bullets Right heart catheterization login to view 4 more bullets Making the diagnosis login to view 1 more bullet Differential Constrictive pericarditis login to view 5 more bullets Tension pneumothorax login to view 3 more bullets Treatment Management approach login to view 1 more bullet Nonoperative login to view 6 more bullets Procedural login to view 3 more bullets Operative login to view 9 more bullets Complications Death