6 results
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
greater than 0.20 sec ... block, the PP and ... by a junctional pacemaker ... an infra-Hisian pacemaker ... #AVBlock #cardiology
Temporary / External Pacing
 • Transvenous & epicardial pacing are temporary methods of supporting brady- &
permanent implanted pacemaker ... • External cardiac ... depolarization SENSITIVITY ... #PPM #Temporary ... External #Pacing #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
atrial injury from pericardial ... > 0.7: ppv = 46% ... Differentiating ventricular ... criteria only looks ... #differential #cardiology
Pacemaker Operating Modes
1 - Chamber paced
     A (atrium), V (ventricle), D (dual/both)
2
the heart • AV ... of time after ventricular ... Settings: • Sensitivity ... #PPM #Operating ... Pacing #settings #cardiology
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
block, the PP and ... • The ventricular ... by a junctional pacemaker ... an infra-Hisian pacemaker ... AVBlock #Complete #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Pardee's sign" + PPD ... Bundle Branch Block ... V5-6 • Left Ventricular ... bundle-branch block ... differential #diagnosis #cardiology