It has been 30 years since the first successful isolation of the accessory pathway AP from a patient with pre-excitation syndrome (WPW) by Sealy et al [1] in the U.S. In the past 30 years, the journey from surgical resection to successful blockade of the AP by radiofrequency catheter ablation (RFCA) has been a long one. The history of cardiac surgery in the treatment of WPW It took a long time to mature the technique of epicardial electrophysiological labeling prior to surgical removal of AP. Initially, the focus was on identifying the electrical activity at the epicardium where the AP was inserted into the atria and ventricles [2], but because the epicardium was covered with fatty tissue, the location of the AP measured at the epicardium was sometimes some distance from the exact location of the AP. Later, bipolar electrograms were used to record the electrical activity of the right atrial endocardium, and in 1972, Gilbert et al [3] used coronary sinus electrodes to record the electrical activity of the left AP, which led to a major step forward in preoperative assessment technology and a corresponding increase in the success rate of surgery. Nevertheless, the frequent failure to terminate the tachycardia after surgical resection was frustrating, so a more extensive resection at the annulus was performed, and if this was not successful, Cox et al [3] labeled and resected the AP at the endocardium of the open heart to terminate the episodes of supraventricular tachycardia. As experience with the procedure gradually increased, success rates later reached 95-99%, with mortality in elective cases