Gas exchange function through the mastoid mucosa in ears after surgery
Gas exchange function through the mastoid mucosa in ears after surgery
复制标题
DOI：
10.1097/00005537-199708000-00020
复制
发表时间：
1997-08-01
期刊：
影响因子：
2.6
通讯作者：
Toda, H
中科院分区：
文献类型：
--
作者：
Takahashi, H;Honjo, I;Toda, H
研究了手术后使用笑气的耳通过乳突粘膜的气体交换功能。在使用67%笑气、33%氧气和七氟烷的全麻下对14只患有慢性粘连性中耳炎或中耳乳突瘤的耳朵以及7只没有炎症的耳朵进行第二阶段翻修手术期间，通过放置在乳突腔中的微压传感器来评估乳突压力的增加。7只对照耳均出现不同程度的乳突压力增高。在14只术后耳中，10只耳中有9只耳的乳突粘膜以前能够不同程度地保留，但乳突压力增加，但其余4只耳，以前乳突切除术，没有显示任何压力增加。这些耳朵的乳突压力增加的存在或不存在也被发现与第二阶段手术前检查的计算机断层扫描上乳突通气的存在或不存在相关。这些结果似乎表明，在手术后的耳朵，恢复气体交换功能和通气的乳突是只有当乳突粘膜可以保留，甚至部分。
Gas exchange function through the mastoid mucosa was investigated in ears after surgery using nitrous oxide. Increase in the mastoid pressure was assessed by a micropressure sensor placed in the mastoid cavity during the second-stage revision operation performed under general anesthesia using 67% nitrous oxide, 33% oxygen, and sevoflurane on 14 ears with chronic adhesive otitis media or cholesteatoma as well as on seven ears without inflammation as controls. All seven control ears showed pressure increase in the mastoid in various degrees. In the 14 postoperative ears, nine of the 10 ears on which the mastoid mucosa had previously been able to be preserved in various degrees showed pressure increase in the mastoid, but none of the remaining four ears, which had previously had mastoidectomy, showed any pressure increase. The presence or absence of the mastoid pressure increase of those ears was also found to be correlated well with the presence or absence of mastoid aeration on computed tomography examined just before the second-stage operation. These results appear to indicate that, in ears after surgery, recovery of both the gas exchange function and aeration in the mastoid is expected only when the mastoid mucosa can be preserved even partially.