Treatment for left bundle branch block depends on the underlying cause.
Treatment for left bundle branch block may include:
A person with left bundle branch block may require treatment with a pacemaker. Pacemakers are electronic devices that regulate the heart rate within a normal range.
Pacemakers require an electrical wire inserted into the heart, which is connected to an electronic device that generates electrical impulses that stimulate the heart. Most pacemakers are placed under the skin.
All pacemakers do two things:
- They sense the electrical signals from a normal heartbeat. As long as the heart is beating fast enough, nothing else happens.
- The pacemaker sends a tiny electrical impulse to stimulate the heart to beat when the heart is beating too slowly.
Some pacemakers can shock the heart when a dangerous rhythm occurs. These are called implantable defibrillators.
Home care includes:
- Wear a Medic Alert bracelet, showing that you have a pacemaker.
- Take acetaminophen for pain.
- Magnets should be kept away from the chest.
- The metal in a pacemaker may set off metal detectors in airport and other security stations. Keep your pacemaker wallet card with you at all times.
Pacemaker Warning Signs
If you have a pacemaker, call for:
Physicians from the following specialties evaluate and treat left bundle branch block:
Continue to LBBB Home Care
- Guerrero M, Harjai K, Stone GW, Brodie B, Cox D, Boura J, Grines L, O'Neill W, Grines C. Comparison of the prognostic effect of left versus right versus no bundle branch block on presenting electrocardiogram in acute myocardial infarction patients treated with primary angioplasty in the primary angioplasty in myocardial infarction trials. Am J Cardiol. 2005 Aug 15;96(4):482-8. 
- Lee SJ, McCulloch C, Mangat I, Foster E, De Marco T, Saxon LA. Isolated bundle branch block and left ventricular dysfunction. J Card Fail. 2003 Apr;9(2):87-92. 
- Nguyen K, Cigarroa JE, Lange RA, Hillis LD, Keeley EC. Presence and extent of angiographic coronary narrowing in patients with left bundle branch block. Am J Cardiol. 2004 Jun 1;93(11):1426-7, A10. 
- Reuben AD, Mann CJ. Simplifying thrombolysis decisions in patients with left bundle branch block. Emerg Med J. 2005 Sep;22(9):617-20.