The Standard Maze-III Procedure

摘要

The original Maze procedure (Maze-I) was introduced clinically in September 1987. Although this technique was extremely effective in controlling atrial fibrillation, it resulted in two unforseen problems:1. Chronotropic inadequacy of the sinoatrial (SA) node. Many patients were unable to develop a sinus tachycardia rate commensurate with the level of their physical activity postoperatively because one of the incisions was positioned in the "sinus-tachycardia region" of the SA node, immediately anterior to the orifice of the superior vena cava (SVC).