Template:STEMI Stages of Development

STEMI Stages of Development

Stages of STEMI development
Stage Duration Timing Finding ECG
1

STEMI-b.jpg

30min - hours Hyperacute T waves
  • >6mm limb leads
  • >10mm precordial leads
Normalizes in days, weeks, or months
2

STEMI-c.jpg

Minutes - hours ST segment elevation
  • 0.1mV in two or more contiguous leads
ST segment resolution occurs over 72hrs; completely resolves within 2-3wks
3

STEMI-d2.jpg

Within 1hr; completed within 8-12hr Q waves Persist indefinitely in 70% of cases