A member asked:

What is the difference between complete right bundle branch block and incomplete right bundle branch block?

3 doctors weighed in across 2 answers
Dr. Louis Grenzer answered

Specializes in Cardiology

EKG diagnosis: On the EKG if the qrs (electrical wave cause by the heart muscle depolarizing) is 0.12 seconds or greater, it is by definition complete. Less that that would be incomplete. Complete implies that there is no conduction at all and incomplete that it is just delayed. However, that number is somewhat arbitrary.

Answered 12/3/2018

6.3k views

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Dr. Elden Rand answered

Specializes in Cardiology

Duration: A complete right bundle branch block has a qrs duration of 120 milliseconds or more, an incomplete rbbb is less than 120 milliseconds.

Answered 12/14/2015

5.2k views

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