一些作者认为,鼻气管插管(NI)和口气管插管相比有某些优点,如病人痛苦少,导管稳定性好,对头位活动影响小,容易清除口腔分泌物,对喉损伤小。但会发生某些并发症,如导管纽结或阻塞、粘液积聚,鼻出血、鼻翼坏死、鼻粘连、因损伤咽鼓管致耳聋、喉损伤、鼻窦炎及继发性脓毒病。本文报道19例NI后上颌窦炎,诊断标准为发热、白细胞增高、脓性鼻漏、X线片示上颌窦混浊或液平面。根据年龄、疾病和微生物学研究分成二组,第一 Some authors believe that nasotracheal intubation (NI) has some advantages over orotracheal intubation, such as less patient pain, good catheter stability, less head activa- tion, easy removal of oral secretions, and less damage to the larynx. However, certain complications such as kinking or obstruction of the duct, accumulation of mucus, epistaxis, necrosis of the alar, nasal adhesions, deafness due to damage to the eustachian tube, laryngeal injury, sinusitis, and secondary sepsis can occur. This article reports 19 cases of post-NI maxillary sinusitis, the diagnostic criteria for fever, increased white blood cells, purulent rhinorrhea, X-ray showed maxillary sinus turbid or fluid level. According to age, disease and microbiology research is divided into two groups, first