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先天性耳前瘘管东方人多见,其发病率为10～14%;白种人发病率仅为0.9%。本病常因反复感染,形成脓肿后需切开引流。其致病菌多认为以金黄色葡萄球菌为主,但实践证明应用金黄色葡萄球菌敏感药物进行治疗,疗效并不满意,故怀疑真正致病菌很可能不是金黄色葡萄球菌。为此对13例耳前瘘管感染的病人,取脓性分泌物,进行需氧及厌氧培养,结果发现在13例病人中分离出6种细菌,共22株。其中12例分离出兼性厌氧菌,只有1例仅分离到金黄色葡萄球菌;呈纯培养者7例,分离得2种以上者5例。厌氧菌中
Congenital ear fistula Oriental common, the incidence rate of 10 to 14%; white incidence of only 0.9%. The disease is often due to repeated infections, the need to incision and drainage after the formation of abscess. Most of its pathogens that Staphylococcus aureus, but practice proved Staphylococcus aureus sensitive drugs for treatment, the effect is not satisfied, it is suspected that the true pathogenic bacteria is likely not Staphylococcus aureus. To this end on 13 cases of ear infections in patients with fistula, purulent discharge, aerobic and anaerobic culture, found in 13 patients were isolated six kinds of bacteria, a total of 22 strains. Among them, 12 cases were isolated facultative anaerobes, only 1 case was isolated from Staphylococcus aureus; 7 cases were pure cultured and 5 cases were isolated from 2 or more. Anaerobic bacteria