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Causes of ST Elevation in ECG

#STElevation #STEMI #ECG #EKG #Electrocardiogram #Causes #Differential #ABCHELP #Mnemonic
Causes of ST Elevation ... in ECG #STElevation ... Electrocardiogram #Causes
ST segment elevation in acute myocardial ischemia

ST segment elevations with straight (horizontal, upsloping or downsloping) or
ST segment elevation ... ischemia ST segment elevations ... Concave ST segment elevations ... less likely to be caused ... the underlying cause
ST Elevation Myocardial Infarction (STEMI)

Criteria:
• New ST-segment elevation at the J point in 2 contiguous leads
ST Elevation Myocardial ... New ST-segment elevation ... leads other than V2 ... • In leads V2- ... DharSaty #ST #Elevation
Sgarbossa Criteria A - Concordant ST segment elevation of >1m, in any lead | Sgarbossa Criteria
Concordant ST segment elevation ... 1mm in leads V1, V2 ... Disconcordant ST segment elevation
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... anteroseptal leads (V2 ... rSR' in V1 and V2 ... in V1 and V2 typically ... voltage Other Causes
Brugada Syndrome - EKG Characteristics
Patients with Brugada have a pseudo-RBBB and persistent ST elevations in V1-V2.
Type
persistent ST elevations ... in V1-V2. ... Type 1: • ST elevations ... Type 2: • ST elevations
Progression of EKG changes in Acute Coronary Syndrome (ACS)
Hyperacute T waves:
 • Broad-based and symmetrical, usually
/S ratio >1 ST elevation ... : • New ST elevation ... leads other than V2 ... mV • In leads V2 ... complex in leads V2
Alkaline Phosphatase (ALP) Elevation - Differential Diagnosis Algorithm

ALP:
 - Enzymes that catalyze hydrolysis of organic phosphate
Phosphatase (ALP) Elevation ... Differential Diagnosis Algorithm ... Intestine - Other causes ... of elevation: ... Differential #Diagnosis #Algorithm
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Conventional STEMI - Elevation ... with 1-2 mm ST elevation ... a tall R in V1/V2 ... S ratio > 1 in V2 ... modified) - ST elevation
De Winter T-Waves on EKG
 - Anterior OMI
 - 2% of left anterior descending occlusions
 -
- look for ST elevation ... point usually V2