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editorial
. 2022 Dec 5;17:84–93. doi: 10.1016/j.xjtc.2022.11.009

Figure 1.

Figure 1

Cox-Maze lesions. LAA1: Manage the LAA. LAA2: Connect the LAA exclusion to the Box. L1-4: The Box: Isolate the entirety of the posterior LA. L5: Connect the box to the mitral annulus and the coronary sinus. R1: Make a right atriotomy. R2-3: Create a line of block between the SVC (R2) and the IVC (R3). R4: Connect the atriotomy to the tricuspid annulus at the 2 o'clock position (∗this lesion does not cross the valve itself; it arches over the valve along the anterior wall of the RA with the end of the lesion extending onto the valve annulus at the 2 o'clock position). R5: Connect the tricuspid annulus at the 10 o'clock position to the RAA. R6: Connect the RAA to the RA free wall, making sure to avoid the SAN. RAA, Right atrial appendage; SVC, superior vena cava; IVC, inferior vena cava; LAA, left atrial appendage; PV, pulmonary vein.