Friday, April 30, 2010


(Click to enlarge)

Challenge: What is your diagnosis?

Image is in the public domain.

1 comment:

Craig Chen said...


This is third degree heart block or complete heart block. No atrial impulses reach the ventricle. If the block occurs in the AV node, about 2/3 escape rhythms have a narrow QRS complex (seen here); this is a junctional or AV nodal rhythm.

Sources: UpToDate; Wikipedia.