Intermediate
Technical
In the Industry Vocabulary Test
ST-segment elevation
An ECG finding indicating acute myocardial ischemia or injury during cardiac procedures.
Full Definition
ST-segment elevation is an electrocardiographic finding characterized by elevation of the ST segment above the baseline, typically indicating acute myocardial ischemia or injury. In cardiac anesthesia, ST-segment changes are continuously monitored as early indicators of myocardial compromise during surgery. Elevation greater than 1-2mm in specific lead combinations can indicate regional ischemia, inadequate cardioplegia delivery, or coronary artery compromise. Prompt recognition and intervention are essential to prevent irreversible myocardial damage.
Usage
Usage note: Always hyphenate ST-segment when used as a compound modifier.
In Context
- "Significant ST-segment elevation was noted in leads II, III, and aVF during coronary manipulation." — anesthesia record
- "The ST-segment elevation resolved after improving cardioplegia delivery." — intraoperative note
Also known as
ST elevation
STEMI pattern
Contrasted with
ST-segment depression
normal ST segments
Don't confuse with
ST-segment depression
T-wave inversion