[最大发声时间作为筛查肌病患者呼吸肌无力的工具]

[Maximum phonation time as a tool of screening respiratory muscle weakness in myopathic patients].

作者信息

Toyoda Chizuko, Ogawa Masafumi, Oya Yasushi, Kawai Mitsuru

机构信息

Department of Neurology, Musashi Hospital, National Center of Neurology and Psychiatry, 4-1-1 Ogawahigashi-machi, Kodaira-shi, Tokyo 187-8551, Japan.

出版信息

No To Shinkei. 2004 Oct;56(10):873-6.

PMID:15609674

Abstract

UNLABELLED

We examined the relation of maximum phonation time (MPT) and vital capacity (VC) and reviewed the usefulness of MPT as a respiratory function screening.

SUBJECTS

18 healthy adult subjects (8 men and 10 women), and 32 myopathic patients (24 men and 8 women).

METHODS

MPT and VC were measured in sitting position. Six patients were tested with and without air stacking by glossopharyngeal respiration.

RESULTS

In healthy subjects, MPT was 29.9 +/- 11.8 seconds in men and 21.7 +/- 7.8 seconds in women. Second trials showed good reproducibility. The healthy group had no correlation between MPT and VC. The patient group showed a significant positive correlation between MPT and VC (r2= 0.25, p=0.003). All patients with MPT less than 15 seconds showed VC less than 1.5 l and %VC less than 50%. Air-stacking by glossopharyngeal respiration significantly increased the MPT.

CONCLUSIONS

MPT is a useful screening test for respiratory muscle weakness. The patients are easily aware of the effect of air-stacking by glossopharyngeal respiration.

摘要

未标注

我们研究了最大发声时间（MPT）与肺活量（VC）之间的关系，并回顾了MPT作为呼吸功能筛查指标的实用性。

研究对象

18名健康成年受试者（8名男性和10名女性）以及32名肌病患者（24名男性和8名女性）。

方法

在坐位测量MPT和VC。6名患者通过舌咽呼吸进行了有无空气叠加的测试。

结果

在健康受试者中，男性的MPT为29.9±11.8秒，女性为21.7±7.8秒。第二次测试显示出良好的可重复性。健康组的MPT与VC之间无相关性。患者组的MPT与VC之间存在显著正相关（r2 = 0.25，p = 0.003）。所有MPT小于15秒的患者其VC小于1.5升且VC百分比小于50%。通过舌咽呼吸进行空气叠加显著增加了MPT。