Left bundle branch block natural history, complications and prognosis
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Left bundle branch block Microchapters |
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Differentiating Left Bundle Branch Block from other Diseases |
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Diagnosis |
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Treatment |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]
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Complications
Pulmonary arterial line placement [1] in a patient with LBBB can result in a complete heart block if the right bundle branch is traumatized during the process.
Prognosis
Age Under 50 Years
In patients under the age of 50, LBBB does not appear to be associated with an adverse prognosis.
Age Over 50 Years
It is notable that when LBBB is the presenting feature of an acute MI, the patient will not present with any chest pain half the time. Unfortunately, patients whose only manifestation of an acute MI is a left bundle branch block are less frequently treated with reperfusion therapy, and they have a worse prognosis.[2]
References
- ↑ Morris D, Mulvihill D, Lew WY (1987). "Risk of developing complete heart block during bedside pulmonary artery catheterization in patients with left bundle-branch block". Archives of Internal Medicine. 147 (11): 2005–10. PMID 3675104. Retrieved 2012-10-17. Unknown parameter
|month=ignored (help) - ↑ Shlipak M, Go A, Frederick P, Malmgren J, Barron H, Canto J. Treatment and outcomes of left bundle-branch block patients with myocardial infarction who present without chest pain. J Am Coll Cardiol. 2000;36(3):706-712.