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在纽约巴法罗(Bubfalo)儿童医院里,外科医生已开始采用两种新技术来替儿童施行心脏手术。这两种方法的共同之处都是使病人在手术后毋需输血,故又称为“无血外科技术”。第一种方法是用含有矿物质和营养的水对血液进行稀释,通过增大血液量来减少血的损失。第二种方法则采用冷却病人的体温来停止其血液循环,在病人的体温冷却后体内的新陈代谢活动就减慢了,当体温下降到摄氏18度时病人的血液循环约能终止一小时。迄今为止,
At the Children’s Hospital in Bubfalo, New York, surgeons have begun adopting two new technologies to perform cardiac surgery for children. The common point of these two methods is that the patient does not need blood transfusion after surgery, so it is also called “no blood surgery technology.” The first method is to dilute the blood with water containing minerals and nutrients, and reduce blood loss by increasing the amount of blood. The second method uses cooling the patient’s body temperature to stop the blood circulation. After cooling the patient’s body temperature, the metabolic activity in the body is slowed down. When the body temperature drops to 18 degrees Celsius, the patient’s blood circulation can be terminated for about one hour. So far,