Tag Archives: discordant st-elevation

64 year old female CC: Trouble Breathing – Conclusion

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Lots of great comments and it was good to see the depth of discussion on the appropriate treatment and transport for this patient! This is the conclusion to 64 year old female CC: Trouble Breathing. When we left off our crew was attending to an elderly female patient in respiratory extremis. Pulmonary edema was present […]

85 year old female CC: Respiratory distress – Discussion

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This is the follow-up and discussion for 85 year old female CC: Respiratory distress. As usual, thank you for all the insightful comments! The case demonstrates some very important points not the least of which is that the differential diagnosis of shortness of breath can be difficult, even for emergency physicians who have access to […]

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.

80 year old male CC: Chest pain

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Here’s a case submitted by a faithful reader who wishes to remain anonymous. It’s a great case and destined to be one of my favorites! EMS is called to evaluate a 80 year old male patient with a chief complaint of chest pain. On arrival the patient is found sitting on his living room couch. […]

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 […]

Discordant ST-Segment Elevation in LBBB or Paced Rhythm

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If you’ve been following the Prehospital 12-Lead ECG blog for a while, you know that I’m advocate of using Sgarbossa’s criteria to help identify acute STEMI in the presence of left bundle branch block (LBBB) or paced rhythm. According the Sgarbossa’s original criteria, 5 mm of discordant ST-segment elevation is required to identify AMI in […]

Sgarbossa's Criteria – New Graphic

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Here is a graphic I created to help explain Sgarbossa’s criteria for identifying acute myocardial infarction (AMI) in the presence of left bundle branch block (LBBB) or paced rhythm. In a previous article I showed this graphic which was created using PowerPoint. Here is a similar graphic I created this morning by cropping actual ECGs […]