“Routine” afib turned atrial flutter in a patient who had a prior atriotomy. With the CTI ruled out (peep the SNO zone toward the end) we fired up V7. Coherent mapping identified slowing near our SVC that correlated beautifully with an LAT valley, highlighting our critical isthmus. From there, we ripple mapped to confirm the channel and looks like the SVC cannulation site was the culprit.
#ePeeps Can you feel that satisfying “got it” ~ swoosh ~ Sinus.