ASSESSMENT OF THE GAS-EXCHANGE FUNCTION OF THE MIDDLE-EAR USING NITROUS-OXIDE - A PRELIMINARY-STUDY

被引：34

作者：

TAKAHASHI, H ^{[1
]}

SUGIMARU, T ^{[1
]}

HONJO, I ^{[1
]}

NAITO, Y ^{[1
]}

FUJITA, A ^{[1
]}

IWAHASHI, S ^{[1
]}

TODA, H ^{[1
]}

机构：

[1] KYOTO UNIV,FAC MED,DEPT ANESTHESIOL,KYOTO 606,JAPAN

来源：

ACTA OTO-LARYNGOLOGICA | 1994年 / 114卷 / 06期

关键词：

GAS EXCHANGE; MIDDLE EAR; NITROUS BRIDE; OTITIS MEDIA;

D O I：

10.3109/00016489409126119

中图分类号：

R76 [耳鼻咽喉科学];

学科分类号：

100213 ;

摘要：

A method for assessing the gas exchange through the middle ear (ME) mucosa using nitrous oxide is introduced. Increases in the ME pressure was determined by a tympanogram or a micropressure sensor inserted into the mastoid cavity during ear surgery under general anesthesia using 67% nitrous oxide, 33% oxygen, and sevoflurane on 30 normal ears, 12 ears with otitis media with effusion (OME), and 3 postoperative ears with chronic adhesive otitis media or choresteatoma. All the 30 normal ears except one showed varying pressure increase, and an inverse correlation was observed between pressure increase and area of mastoid on radiographs. Pressure increase was observed in 6 (50%) ears with OME, and this finding correlated well with the presence or absence of air space in the ME on computed tomography images examined preoperatively, on ears which had ear surgery, the presence or absence of pressure increase correlated with the degree of previous surgical intervention on the mastoid. The rationale and possibility of clinical application of this method is discussed.

引用

页码：643 / 646

页数：4

共 18 条

[1] NEGATIVE-PRESSURE IN THE MIDDLE-EAR IN CHILDREN AFTER NITROUS-OXIDE ANESTHESIA [J].