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De Winter's T-waves in precordial leads and ST elevation in inferior leads.  There are already
precordial leads and ST ... elevation in inferior ... supplying the inferior ... addition to the anterior ... #Clinical #EM #Cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
sign A - Biphasic anterior ... Deeply inverted anterior ... asymmetrical, broad-based anterior ... deviation) • Acute ... inversions in the anterior
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... QRS complex Pulmonary ... anteroseptal and inferior ... weeks following an acute ... voltage Other Causes
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
women • DDx: Acute ... 0.5mm downgoing ST ... line; upsloping ST ... in avL - early inferior ... - R/S >1 or ST
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
EKG in Acute Pulmonary ... evaluating for other causes ... • Dominant R Wave ... Leads (VI-V3) +/- Inferior ... • Non-specific ST-T
ECG of a 55-year-old man who presented to the ER with chest pain 
Computer interpretation: “Nonspecific
: “Nonspecific ST ... Hyperacute Inferior ... Biphasic T-wave ... Q-wave in III, early ... classic pattern of Acute
There is inferior ST elevation with reciprocal ST depression in aVL and  in lead I,
There is inferior ... ST elevation with ... reciprocal ST depression ... in V1) with ST ... #EKG #STEMI #Inferior
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Acute myocardial ... infarction: ST ... artery (LMCA). left anterior ... • Multilead ST ... (AVRT) in WPW: ST
The modified Sgarbossa Rule uses proportions to identify acute AMI in the setting of ST-elevations in
Sgarbossa Rule uses ... the setting of ST-elevations ... LBBB - Ratio of ST-elevation ... / S-wave < -0.25 ... MI #Diagnosis #EM