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一、新抗生素在耳鼻喉科感染中的应用1.口服剂①新的吡啶羧酸系合成抗菌剂各种口服剂中,这类合成抗菌剂目前最引人注目,并也在继续研制之中。其中,最早出现的是萘啶酸(NA),但最早用于耳鼻喉科的是吡(?)酰胺酸(PPA)。此药是在吡啶羧酸的结构中导入枸橼酸(?)嗪环而增强了对绿脓杆菌为首的革兰氏阴性菌的抗菌力,并具有向中耳分泌物和鼻窦粘膜内移行良好的特点。临床证明,对中耳炎、鼻窦炎效果较好。此后,通过在其基本结构内导入氟而扩大
First, the application of new antibiotics in ENT infection 1. Oral agents ① new pyridine carboxylic acid synthetic antibacterial agents Various oral agents, such synthetic antibacterial agent is currently the most eye-catching, and also continue to be developed . Among them, nalidixic acid (NA) was the first to appear, but the earliest used in otolaryngology is pyruvate (PPA). The drug is introduced into the structure of pyridine carboxylic acid citrate (?) Oxazine ring and enhanced Pseudomonas aeruginosa led gram-negative bacteria antibacterial force, and to the middle ear secretions and sinus mucosa migration is good specialty. Clinical evidence of otitis media, sinusitis better. After that, it is expanded by introducing fluorine into its basic structure