Submitted by Dr A Röschl on Sat, 05/27/2023 - 01:16
Here is the EKG of a 54 -year -old woman without known cardiac disease. The EKG was routinely carried out before a surgical intervention. It`s a screenshot. You can see a normal SR with narrow QRS, followed by an incompete LBBB and then a complete LBBB. A LBBB is often associated with cardiac diseases, but it also occurs without a heart disease.