Aortic Dissection Amritpal Singh Nat, M.D., and Dinesh Subedi, M.D September 18, 2014 N Engl J Med 2014; 371:e17 DOI: 10.1056/NEJMicm1313897 An 81-year-old man with no documented medical history presented to the emergency department [khoa cấp cứu] with suprapubic pain [đau vùng mu] and urinary retention [bí tiểu] resulting from benign prostatic hyperplasia [tăng sinh lành tính tuyến tiền liệt] He was incidentally found to have an elevated troponin I level, at 0.17 ng per milliliter (normal value,