Tag Archives: new left bundle branch block

88 year old female CC: Chest pain – Conclusion

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This is the conclusion to 88 year old male CC: Chest pain. Let's take another look at the 12-lead ECG. This ECG shows acute STEMI in the presence of left bundle branch block. It's also an excellent example of the value of using "excessive discordance" to identify acute STEMI in the presence of left bundle […]

Excessive discordance as a marker of acute STEMI in LBBB

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Positively deflected QRS complexes can be expected to show ST-depression and inverted T-waves.

58 year old male CC: Chest pain

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Here’s an interesting case sent in by a faithful reader who wishes to remain anonymous. EMS is called to the residence of a 58 year old male complaining of chest discomfort. On arrival the patient is found sitting on the edge of the bed. He is anxious but alert and oriented to person, place, time, […]

58 year old female CC: Chest pain – Conclusion

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Here’s the conclusion to the 58 year old female with chest pain and left bundle branch block. To refresh your memory here is the 12-lead ECG. And for those of you who requested lead V4R. This ECG meets all 3 of Sgarbossa’s criteria to identify acute STEMI in the presence of left bundle branch block. Keep […]

"New" LBBB – What's the big deal?

In the January 2010 EMCast at EMedHome.com, Amal Mattu MD reviews Chang AM, Shofer FS, Tabas JA, et al. Lack of association between left bundle-branch block and acute myocardial infarction in symptomatic ED patients. Am J Emerg Med 2009;27:916-921. His comments confirm what I have suspected for a long time with regard to LBBB in […]