What Does Left Bundle Branch Indicate?

Posted on Sun, 29 Jun 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sun, 29 Jun 2014 Answered on

Sat, 26 Jul 2014 Last reviewed on

Question : I have been diagnosed with a left bundle branch and am to have a Nuclear stress test. Worst case scenario for someone who just developed this, please?

Answered by Dr. Anantharamakrishnan (11 hours later)

Brief Answer:
Coronary Artery Disease, at the worst

Detailed Answer:
Dear friend,
Welcome to Health Care Magic

At the worst, it may mean a recent heart attack (Coronary Artery Disease)

It could be a disease of the nerve (Conduction system) of the heart
It may also be from hypertrophy of the left ventricle (say from blood pressure)
Rarely, an incidental finding
Your doctor is right - in doing the stress imaging study

Take care
Good luck

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar