Tag Archives: bundle branch block

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, […]

Identifying STEMI in the presence of LBBB – Sgarbossa's Criteria – Part I

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There has been a lot of discussion lately about identifying AMI in the presence of LBBB (see Dr. Bearemy’s “My Emergency Medicine Blog” here and a recent thread on the EKG Club). I’ve also been receiving a lot of emails offlist, so I think a full discussion is in order. In my recent post Who […]

Computerized interpretive statements and bundle branch blocks

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Here’s an ECG that I’ve used in my 12 lead class for many years. It’s usually good for a laugh! I show this ECG right after I teach students to identify LBBB on the 12 lead ECG. I explain that it was captured on an emergency call for a 80 year old male who was […]

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Comments
Justin
Rate Related VS. Primary ST-T Changes:
I'm not sold on true A-Fib, as there is a fusion beat/PAC visible in lead V1, additionally I think that the "U" waves are possibly atrial activity. This pt could be having a fib/ flutter pattern; but its hard to say without slowing down the rate and getting expert consultation from a cardiologist. I Would…
2014-09-22 23:20:29
Billy Bob
Rate Related VS. Primary ST-T Changes:
I think I will have to agree with Michael; I just don't see all that much evidence of WPW; typically with WPW & AF the complexes vary in width and morphology due to the combination of the accessory pathway and normal pathways which I just don't see here. The rate doesn't seem to match what…
2014-09-22 19:02:24
Christopher
59 year old male: chest pressure – Conclusion
I read back over the details on this case and they didn't include whether or not the patient was Left-dominant. Your hunch is probably correct!
2014-09-22 12:55:42
Jonathan
Magnesium and Cardiac Action Potential
I have a background in biochemistry, and so am able to navigate the medical science more than someone without this background. My mom has atrial fibrillation, and so I decided to do some investigation. I am AMAZED to find out how little her primary care doctor knows about Magnesium/Potassium/Calcium concentrations as they pertain to Atrial…
2014-09-22 03:46:58
Jeff
Rate Related VS. Primary ST-T Changes:
He's complaining of 10/10 chest pain that coincided with palpitations with a HR of 206 that is probably A-Fib. I am guessing that if you correct his rate you will allow his myocardium to become perfused again and his chest pain will subside. I would pre-sedate him with Midazolam 2mg and electrically cardiovert starting @…
2014-09-21 19:17:36

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