"I... I'm his mother..." Gu Yu's mother had not even buttoned her coat, and her hair was still a bit disheveled as she looked at the doctor and asked him with almost a sense of despair, "How is my son doing?"
"Well," the doctor looked at Gu Yu's mother, cleared his throat, and said to her, "The child had a sudden cardiac arrest this evening. Fortunately, someone by his side immediately performed CPR, which pretty much saved his life. When he was brought to the hospital, his heartbeat was very unstable and his blood pressure was low, but after our emergency treatment, he was brought back from the brink. However, his congenital heart disease—if not completely cured—could lead to another sudden cardiac arrest at any time, and no one can predict when that might happen. So..."
The doctor's voice paused briefly, then continued, "I suggest you take him to a big city for treatment, the best option would be a heart transplant surgery."