After a family argument, an 83-year-old woman experienced chest pain, a "racing heart," and a choking sensation and was brought to the emergency department. The chest pain lasted 10 to 15 minutes; was sharp, substernal, and nonradiating; and was associated with dyspnea and a bout of emesis. A sublingual nitroglycerin tablet partially alleviated the pain, but the patient felt syncopal. Her symptoms persisted despite the administration of supplemental oxygen and a second sublingual nitroglycerin tablet. The patient had a history of gastroesophageal reflux disease, allergic rhinitis, and osteoarthritis. Her oral medications included esomeprazole (40 mg/d), aspirin (81 mg/d), and fluticasone nasal spray. She had discontinued valdecoxib 3 weeks earlier.

Dull, intermittent, midepigastric abdominal pain of 1 day's duration prompted a 73-year-old man to seek medical attention. He had no other symptoms.

A 59-year-old woman had aphasia and right-sided weakness after a routine total knee replacement. CT and MRI scans revealed a large left middle cerebral artery infarct. A CT angiogram showed no significant disease of the cerebrovascular arteries. Test results for the lupus anticoagulant were positive. A venous study of the legs showed no deep venous thrombosis. She was treated with warfarin and aspirin and discharged. After speech and physical therapy, she had mild residual aphasia.