title: Adding to the differential.
authors.forename: T O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D006348:Cardiac Surgical Procedures; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D010494:Pericarditis, Constrictive / Q000175:diagnosis*; D011183:Postoperative Complications / Q000175:diagnosis*