A cavotricuspid isthmus pouch revealed to be a breakout site for gap conduction of recurrent common atrial flutter.
Takayuki SekiharaTakuryu SonouraYuka NakamuraIsamu SunayamaYu MorishitaMasashi IshimiMasashi YamatoTakahiro YoshimuraYoshinori YasuokaPublished in: Clinical case reports (2020)
A cavotricuspid isthmus pouch can be a breakout site for gap conduction of cavotricuspid isthmus block line. If the previous block line is electrically silent, high-density 3-D mapping and pouchgraphy are useful to find the pouch and ablate within it.