10 results
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
week of becoming acute ... anterior wall MI ... Serial EKGS in pts ... #ECG #Electrocardiogram ... #Diagnosis #Cardiology
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
EKG in Acute Pulmonary ... also a result of atrial ... Leads (VI-V3) +/- Inferior ... #diagnosis #cardiology ... #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... (e.g. ectopic atrial ... Septal (V1-2) • Anterior ... #Electrocardiogram ... #cardiology #diagnosis
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
Inverted P waves in inferior ... rhythm if the PRI ... #rhythm #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Acute myocardial ... artery (LMCA). left anterior ... Subepicardial atrial ... #electrocardiogram ... #differential #cardiology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
: WPW, ectopic atrial ... Short QT <300-360 ms ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #interpretation
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
segment at (or 40-60 ms ... deviation) • Acute ... #EKG #diagnosis ... #differential #cardiology ... #electrocardiogram
Septal Hypertrophic Cardiomyopathy (HOCM)

52yo worsening exertional sx and murmur. EKG nonspecific, Serial trops (-) 
EM resident
EKG nonspecific, ... ) EM resident ... elevated LVEDP ==> MRI ... Metoprolol - VCU Ultrasound ... echocardiogram #plax #cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
women • DDx: Acute ... in avL - early inferior ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #STEMI
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
in-hospital mortality in inferior ... MI • PAPi < 1.85 ... correlate in the SHOCK trial ... Ahmed Ghoneem, MD MSc ... catheter #diagnosis #cardiology