Ortho-Preferred

ANTERIOR HEMIBLOCK


- See: Rt and Lft BBB 
- S wave: II, III, aVF; 
- Loss of normal Qs: I, aVL, V6 
- L.A.D. 
-Usually associatted with MI (upto 1/2 of Ant MI get Ant HemiB) 
-QRS slightly widened (0.1 to 0.12 sec) 
-Note: always rule out pre-existing sources of Left Axis Dev.: 
- Left Ventricular Hypertrophy 
- Horizontal Heart ANTERIOR HEMIBLOCK + R.B.B.B.: 
-may result from MI of Anterior Wall of the Left Ventricle




Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Monday, December 19, 2011 3:25 pm