Journal of Emergencies, Trauma, and Shock
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LETTER TO EDITOR  
Year : 2014  |  Volume : 7  |  Issue : 3  |  Page : 247-248
A case of transient left bundle branch block after a cervical wound


Department of Acute Critical Care Medicine, Shizuoka Hospital, Juntendo University, Tokyo, Japan

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Date of Web Publication16-Jul-2014
 

How to cite this article:
Ishikawa K, Ohsaka H, Omori K, Yanagawa Y. A case of transient left bundle branch block after a cervical wound. J Emerg Trauma Shock 2014;7:247-8

How to cite this URL:
Ishikawa K, Ohsaka H, Omori K, Yanagawa Y. A case of transient left bundle branch block after a cervical wound. J Emerg Trauma Shock [serial online] 2014 [cited 2022 Sep 26];7:247-8. Available from: https://www.onlinejets.org/text.asp?2014/7/3/247/136880


Dear Editor,

We present a case of an 85-year-old male demonstrating transient left bundle branch block (LBBB) after the progression of anemia (15.2-11.8 g/dL) due to a neck wound in response to low-level steady-state exercise [Figure 1]. The troponin T and cardiac echo data did not show any significant findings for acute myocardial infarction. As he did not permit further examinations for his heart, he was discharged on foot. The patients with LBBB tend to be complicated with cardiovascular events, such as acute coronary syndrome, lethal arrhythmia, heart failure, or sudden death. [1] The mechanism underlying the occurrence of the transient LBBB might have involved misery perfusion due to both an increasing demand for oxygen induced by even mild exercise and a decreased delivery of oxygen due to the anemia, [2],[3] based on the existence of chronic asymptomatic ischemia of the left bundle branch in our patient.
Figure 1: An electrocardiogram (ECG) on the 2nd hospital day. The ECG demonstrates transient left bundle branch block in response to low-level steady-state exercise

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   References Top

1.Kumar V, Venkataraman R, Aljaroudi W, Osorio J, Heo J, Iskandrian AE, et al. Implications of left bundle branch block in patient treatment. Am J Cardiol 2013;111:291-300.  Back to cited text no. 1
    
2.Ainsworth BE, Haskell WL, Herrmann SD, Meckes N, Bassett DR Jr, Tudor-Locke C, et al. 2011 Compendium of Physical Activities: A second update of codes and MET values. Med Sci Sports Exerc 2011;43:1575-81.  Back to cited text no. 2
    
3.Lawler PR, Filion KB, Dourian T, Atallah R, Garfinkle M, Eisenberg MJ. Anemia and mortality in acute coronary syndromes: A systematic review and meta-analysis. Am Heart J 2013;165:143-53.e5.  Back to cited text no. 3
    

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Correspondence Address:
Youichi Yanagawa
Department of Acute Critical Care Medicine, Shizuoka Hospital, Juntendo University, Tokyo
Japan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-2700.136880

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