经皮肤切口进入上呼吸、消化道的手术因唾液污染伤口,感染的危险性更高。降低伤口感染率的方法包括:术前洁牙、改善病人的营养状况,细致的外科操作,使用负压引流以及预防性使用抗生素等。全身使用抗生素虽然能使术后伤口感染率明显降 Transcutaneous incision into the upper respiratory tract, digestive tract surgery due to saliva contamination of the wound, the risk of infection is higher. Ways to reduce the rate of wound infection include: preoperative dentifrice, to improve the patient's nutritional status, careful surgical operation, the use of negative pressure drainage and the prophylactic use of antibiotics. Although systemic use of antibiotics can make the wound infection rate decreased significantly