[Effects of preoperative secretions on dry ears after the surgery for chronic suppurative otitis media and cholesteatoma]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2019 May;33(5):398-401. doi: 10.13201/j.issn.1001-1781.2019.05.004.
[Article in Chinese]

Abstract

Objective: To investigate the influences of preoperative secretions of the patients with chronic suppurative otitis media and/or middle ear cholesteatoma on the time to have dry ears after the operations. Method: The study enrolled 228 patients with chronic suppurative otitis media and/or middle ear cholesteatoma who received modified radical mastoidectomies and tympanoplasty. The patients were divided into two groups based on whether there were secreions in the surgical ear before the operations. The time to have dry ears after surgeries were compared between the two groups. Result: The time to have dry-ear postoperatively was significantly different between patients with different preoperative microbial types of surgical ear secretions(P<0.05). The dry ear time was(2.24±1.83) months in the secretion-free group, (2.22±1.96) months in the normal bacteria group of oral cavity and skin,(3.00±2.51) months in the single non-resistant bacteria group, (3.82±2.78) months in the fungal group and (6.82±1.83) months in the compound or multi-drug resistant bacteria group. The dry ear time of compound bacteria group or multi-drug resistant bacteria group was significantly longer than that of the other groups(P<0.05). The time to have dry ears of the fungus group was longer than that of the non-drug resistant bacteria, the normal oral and skin flora and the secretion free group(P<0.05). Chi-square test results showed that there was a significant difference in postoperative dry ear rate among patients with different preoperative secretions classification(P<0.05). Conclusion: The presence of secretion and microorganism type in ear before operation is an important influencing factor of postoperative time to have dry ears. Microbiological culture and appropriate medication based on the drug sensitivity tests are beneficial for the postoperative recovery of patients with chronic suppurative otitis media and/or middle ear cholesteatoma.

目的: 探讨术前耳分泌物对慢性化脓性中耳炎和中耳胆脂瘤术后干耳时间和干耳率的影响。方法: 收集228例接受开放式乳突改良根治术、鼓室成形术治疗的慢性化脓性中耳炎和中耳胆脂瘤患者,以术侧耳内有无分泌物及分泌物微生物类型为变量,分析术后干耳时间和干耳率。结果: 不同术前耳内分泌物微生物类型患者间术后干耳时间比较差异有统计学意义(P<0.05)。经分组检验,无分泌物组干耳时间为(2.24±1.83)个月,口腔及皮肤正常菌群组为(2.22±1.96)个月,单一非耐药菌组干耳时间为(3.00±2.51)个月,真菌组为(3.82±2.78)个月,复合菌群或多重耐药菌组为(6.82±1.83)个月。复合菌群或多重耐药菌组干耳时间明显长于其他组(P<0.05);真菌组干耳时间长于单一非耐药菌、口腔及皮肤正常菌群和无分泌物组(P<0.05)。经χ²检验显示,不同术前分泌物分类的患者术后干耳率整体差异有统计学意义(P<0.05)。结论: 术前耳内有无分泌物及微生物类型是术后干耳时间和干耳率的一个重要影响因素。针对术前分泌物进行微生物培养及药敏实验,并根据结果用药有助于慢性化脓性中耳炎和中耳胆脂瘤患者的术后恢复。.

Keywords: otitis media, suppurative; bacteriology; middle ear cholesteatoma; modified radical mastoidectomies.

Publication types

  • Comparative Study

MeSH terms

  • Cholesteatoma, Middle Ear / surgery*
  • Chronic Disease
  • Humans
  • Mastoidectomy
  • Otitis Media, Suppurative / surgery*
  • Time Factors
  • Tympanoplasty