10 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Equivalents / Don't ... inversion in avL ... #ECG #EKG #diagnosis ... electrocardiogram #cardiology ... #STEMI #Equivalents
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
in 10s x 6 2) Rhythm ... (e.g. ectopic atrial ... • Lateral (I + aVL ... Electrocardiogram #cardiology ... #diagnosis #system
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
STEMI Equivalents ... of the leads l, aVL ... deviation) • Acute ischemia ... #Equivalents #ECG ... #EKG #diagnosis
Wraparound LAD STEMI on EKG
47 year old with chest pain. Ectopic atrial rhythm with ST elevations.
Wraparound LAD STEMI ... Ectopic atrial rhythm ... The mother of all ... a PFO during a bowel ... #cardiology #electrocardiogram
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
rhythm & Multifocal ... #rhythm #tachycardia ... #cardiology #diagnosis ... #ekg #electrocardiogram ... #clinical #comparison
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
predictor of recurrent ischemic ... Subepicardial atrial ... : Differential diagnosis ... aVR • Classic EKG ... #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual and rhythmic ... Wandering Atrial ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... variants #clinical #comparison
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
criteria for the diagnosis ... of a variable P-wave ... dominant pacemaker focus ... #cardiology #ekg ... #comparison
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual and rhythmic ... Wandering Atrial ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... variants #clinical #comparison
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Highest metabolic equivalent ... overload, irregular rhythm ... history of: a) Ischemic ... Obtain EKG if: ... stratification #diagnosis