Atrial flutter

Atrial Flutter

Typical AFL: circuit rotates clockwise or counterclockwise in RA around tricuspid valve annulus Posterior boundary right AFL circuit: crista terminalis, Eustachian ridge, inferior and superior vena cava Counterclockwise AFL ¥80% of all AFL Saw-toothed appearance of P waves in leads Il, Wl, aVF Clockwise right AFL 3 unsta terminalls Positive waves in leads ll,Tll, avF