醫學筆記匯整 ED Notes

 Posterior MI criteria : 

• Horizontal STD in V2-3
• Tall, broad R waves (> 30ms) in V2-3
• Dominant R wave (R/S ratio > 1) in V2
• Upright terminal portions of the T waves in V2-3

V2 Horizontal STD

* 即是後壁的 Reciprocal change : 

• ST elevation -> ST depression
• Q waves -> R waves
• Terminal T-wave inversion -> an upright T wave
  
  
   

 - Posterior infarction accompanies 15-20% of STEMIs
 - Usually occurring in the context of an inferior or lateral infarction.
 - Isolated posterior MI is less common (3-11% of infarcts)

The degree of ST elevation seen in V7-9 is typically modest
– note that only 0.5mm of ST elevation is required
   to make the diagnosis of posterior MI!

https://lifeinthefastlane.com/ecg-library/pmi/