The doctor heard a murmur in front of the heart with a stethoscope and determined that Zhang had congenital heart disease and recommended a cardiac ultrasound for further examination. The results of the heart ultrasound soon came out, confirming the medical examiner’s judgment that she had a congenital atrial septal defect. After further examination, it was found that part of the edge of the defect was particularly close to other important intracardiac structures and was not suitable for interventional treatment, so surgery had to be performed. The surgery was performed by the attending physician himself, with an incision of about 10 centimeters from the lower edge of the right breast, through the right thoracic cavity to repair the defect inside the heart. The heart did not stop during the surgery, and there was no systemic cooling. In other words, Zhang’s heart was supplied with warm blood and kept beating from the beginning to the end, which minimized the damage to the heart. However, non-stop cardiac surgery poses difficulties for the surgeon because the surgical field is not as clear and quiet as in stop-beat surgery, and secondly, gas needs to be prevented from entering the left heart system, otherwise air may enter the arterial vessels with the blood and cause transient internal ischemia after surgery. Non-stop surgery requires great skill and teamwork. The cardiologist and his team did the best they could, and the surgery went smoothly; Zhang recovered quickly, fully awake and off the ventilator two hours after the surgery, and able to drink and eat some simple food the next morning. In the future, after the surgical incision heals further, it will be completely hidden within the skin folds at the lower edge of the breast, and will not be visible even in a bikini.