18 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • The cannon a wave ... SVT (e.g., junctional ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
3 - diffuse T wave ... becomes normal OR T waves ... indefinitely inverted #Diagnosis ... #EM #IM #Cardiology ... #Spodick #ECGEducator
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... rapid cannon a waves ... are enough to diagnose ... Hussainch #Cannon #Awaves ... #Neck #Frog #Sign
Giant A waves caused by pulmonary HTN. There are two clearly discernible descents (X and Y)
has Kussmaul's sign ... the underlying diagnosis ... Giant #PHTN #JVP #Neck ... PhysicalExam #Clinical #Video ... #Cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... V2 • Wellens sign ... from ST-segment ... #EKG #diagnosis ... #differential #cardiology
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
- The distance from ... nadir of the S-wave ... nadir of the S-wave ... #ekg #cardiology ... #diagnosis #electrocardiogram
ST depression & T wave inversion causes #Pathophys #Diagnosis #Cardiology #MedStudent #EKG #Differential #TWI #STD #TWaveInversion
ST depression & ... T wave inversion ... causes #Pathophys #Diagnosis ... #Cardiology #MedStudent ... Strain #Digitalis #ECGEducator
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
- Differential Diagnosis ... STE: "Pardee's sign ... (Eiffel Tower sign ... #differential #diagnosis ... #cardiology #ecg
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
120ms, Dominant S wave ... in V1 (deep S waves ... and T waves in ... electrocardiogram #ecg ... #cardiology #lbbb
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Equivalents / Don't Miss Signs ... - hyperacute T waves ... stenosis - U wave ... #EKG #diagnosis ... electrocardiogram #cardiology