Cardiac Injury / infarct Flashcards
Left & Right BBB
STE leads criteria) Lead I-III
≥ 1mm
STE leads criteria) Lead aVR, aVL, aVF
≥ 1mm
STE leads criteria) Lead V4-6
≥ 1mm
STE leads criteria) Lead V4R
Lead V8-9
Lead V4R ≥ 1mm
Lead V8-9 ≥ 0.5mm
V8 & V9 STEMI criteria:
0.5mm or greater
Wellen’s wave type A:
Biphasic T waves in V2 or V3, min STE <1mm (V2 usually biggest shower
Highly specific for for a critical blockage of the LAD
Wellen’s wave type B:
DEEP inverted T waves V2 or V3,
De Winter’s T Waves:
V2 V3 most commonly but can happen any lead
ST depression at the J-point & upsloping ST-segments w/ tall, symmetrical T- waves in the precordial leads (LMCA or LAD occlusion)
“Hyper T w/ STD”
Spodicks sign:
sloping down P wave into QRS (evidence of pericarditis)
3 Is of cardiac) Ischemia:
“Infarct” Injury:
Infarction:
= Ischemia: ST depres/, Hyperacute T waves>5chest avf >10 precordial
= “Infarct” Injury: ST elevation 50%,
= Infarction: old MI; >25% Q or QRS >1SB
CAD):
CVD):
= Coronary Artery disease: disease affecting coronary vessels
= Cardiovascular disease: affecting heart, peripheral blood vessels, or both
Foramen Ovale:
Pulmonary stenosis:
= hole in the atrial septum that is part of the fetal blood circulation
= pulmonic valve/arteries rigid
Lown Grading system:
benign or malignant for PVCs Grade 0-5 worst-dead
Lown-Ganong
Bundle of James connects posterior internodal pathway to bundle of his (short PRI)