A 61-year-old man with progressive shortness of breath for 1 week and myocardial infarction 1 month earlier had progressive dyspnea at rest, tachycardia, and tachypnea. Transthoracic echocardiography showed a hypoechoic mass and CT showed a large crescentic hypodense lesion. What is your diagnosis?
A man in his 40s training for weight-lifting presented with new-onset progressive dizziness, lightheadedness, and shortness of breath. What is your diagnosis?
A 67-year old man was evaluated for lower gastrointestinal tract bleeding. What is your diagnosis?
This prospective cohort study found that postoperative complications and delirium are separately associated with adverse events and demonstrate a combined effect.
This observational cohort study found that β-blockade was beneficial perioperatively in high-cardiac-risk patients undergoing noncardiac surgery but increased the risk of death in patients with no cardiac risk factors.
Resnick et al investigated the accuracy of computed tomography and magnetic resonance imaging in the clearance of cervical spine injuries. See the Invited Commentary by Schreiber.