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. Author manuscript; available in PMC: 2015 Feb 19.
Published in final edited form as: Surg Clin North Am. 2009 Aug;89(4):1001–xi. doi: 10.1016/j.suc.2009.06.001

Fig. 5.

Fig. 5

Isolation of the pulmonary veins: (A) Isolation of the PVs separately, (B) Isolation of the PVs separately with a bridging ablation. (C) Isolation of the entire posterior left atrium as a unit, including the PVs. The practice of the authors’ institution in performing the Cox-Maze IV is to isolate the entire posterior atrium by connecting the PVs with a superior and inferior ablation, creating a “box” lesion (not shown).