Blood-Based Versus Crystalloid Cardiopulmonary Bypass Priming in Left Ventricular Assist Device Surgery: Impact on End-Organ Function and Survival.

A 42-year-old man presented with sudden-onset chest and back pain. He denied dysphagia, dyspnea, or other respiratory symptoms. On physical examination, vital signs were stable, and no significant abnormalities were noted. Cardiac examination revealed no murmurs or signs of heart failure. The patient had a history of diabetes mellitus and stable schizophrenia. There was no previous diagnosis of cardiovascular disease. Given the abrupt presentation of chest and back pain, the differential diagnosis included acute aortic syndrome (aortic dissection or intramural hematoma), thoracic aortic aneurysm rupture, acute coronary syndrome, pulmonary embolism, and esophageal pathology.