Peter Drier, a bank technology manager in New York City, was blindsided after neck surgery by a $117,000 bill from a doctor he did not recall meeting. Credit Joshua Bright for The New York Times.
Cushing's triad, which includes bradycardia, hypertension (with widened pulse pressure), and a change in respiratory pattern, is seen in head injuries with increased intracranial pressure (ICP).
Strictly, Cushing's syndrome refers to excess cortisol of any etiology (as syndrome means a group of symptoms). One of the causes of Cushing's syndrome is a cortisol-secreting adenoma in the cortex of the adrenal gland (primary hypercortisolism/hypercorticism). The adenoma causes cortisol levels in the blood to be very high, and negative feedback on the pituitary from the high cortisol levels causes ACTH levels to be very low.